Cummins ISX engine error codes. ISM, QSM

Error codes or DTCs are digital displays of truck system malfunction signals from the built-in diagnostic module. As they occur, error codes are written into the engine control unit (“brains” in professional slang), which allows you to restore the error history and make the most complete diagnosis.

There are two types of fault codes:

Electronic engine control fault codes (an error was detected in the engine or control system)

Information codes that give an idea of what happened to the engine or control system

In addition, DTCs can be active (up-to-date) or inactive (not up-to-date).

No. Engine. Error. Decryption.

111 ISF (ISF 2.8, ISF 3.8), ISB, QSB, QSC, ISL, QSL, ISM, QSM, ISX, QSX Internal failure of the ECM module. This DTC can only occur if there is a problem inside the ECM. The ECM cannot be repaired.

115 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISDe, QSB 3.3 Loss of signals from the main and backup speed / crankshaft position sensors. The ECM detects that the signal inputs of the crankshaft position and camshaft position sensors are reversed.

122 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Intake manifold pressure sensor circuit - voltage above normal or short circuit. The ECM determines that the intake manifold pressure sensor signal voltage has been greater than the calibrated value for more than 1 second.

123 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Intake manifold pressure sensor circuit - voltage below normal or short circuit. The ECM determines that the intake manifold pressure sensor signal voltage is less than the calibrated value for more than 1 second.

124 ISB Intake manifold pressure sensor circuit - the data is accurate, but exceeds the norm. This DTC becomes active when the intake manifold pressure exceeds the maximum allowable value for a given engine power rating.

115 QSX The engine speed signal from the camshaft position sensor is not detected. Possible reasons for this DTC are damage to the camshaft position sensor, open or short circuit in the circuit, or malfunction in the power circuit.

121 QSX The engine speed signal from the crankshaft position sensor is not detected. Possible causes of this DTC are damage to the crankshaft position sensor, an open or short circuit in the circuit, or a malfunction in the power circuit.

141 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A low signal voltage or an open circuit was detected in the oil pressure sensor circuit. The ECM determines that the oil pressure sensor signal voltage is less than 0.25 VDC for more than 16 seconds.

131 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A high voltage is detected in the pedal or accelerator lever sensor circuit. The ECM determines that the accelerator pedal position sensor signal voltage has been greater than the calibrated value for more than 1 second.

144 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A high signal voltage or an open circuit is detected in the coolant temperature sensor circuit. The ECM determines that the coolant temperature sensor signal voltage is greater than 5.13 VDC for more than 1 second.

153 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A high signal voltage is detected in the intake manifold temperature sensor circuit. The ECM determines that the intake manifold temperature sensor signal voltage has been greater than the calibrated value for more than 1 second.

154 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A low signal voltage is detected in the intake manifold temperature sensor circuit. The ECM detects that the intake manifold temperature signal voltage is out of range (below normal).

155 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The intake manifold temperature sensor signal indicates that it is above the critical limit of the engine protection system. The ECM detects that the intake manifold air temperature is greater than 132 ° C for 5 seconds.

132 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A low voltage is detected in the pedal or accelerator lever sensor circuit. The ECM detects that the accelerator pedal signal voltage is out of range (below normal).

133 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A high voltage is detected in the signal circuit of the pedal position sensor or the remote control accelerator lever. The ECM detects that the remote control accelerator pedal signal voltage is out of range (above normal).

134 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A low voltage is detected in the pedal or accelerator lever sensor circuit of the remote control. The ECM detects that the remote control accelerator pedal signal voltage is out of range (below normal).

145 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A low signal voltage is detected in the coolant temperature sensor circuit. The ECM detects that the engine coolant temperature signal voltage is out of range (below normal).

146 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The coolant temperature is above the warning limit by the engine protection system. The ECM detects that the coolant temperature is above the calibrated limit.

151 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The coolant temperature sensor signal indicates that it is above the critical limit of the engine protection system. The ECM detects that the coolant temperature is above the engine protection limit.

195 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A high signal voltage is detected in the coolant level sensor circuit. The ECM detects that the coolant level signal voltage is out of range (above normal).

196 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A low signal voltage is detected in the coolant level sensor circuit. The ECM detects that the coolant level signal voltage is out of range (below normal).

197 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Low coolant level detected. The ECM detects that the coolant level is below normal.

221 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A high signal voltage was detected in the atmospheric pressure sensor circuit. The ECM detects that the atmospheric pressure signal voltage is out of range (above normal).

222 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A low signal voltage was detected in the atmospheric pressure sensor circuit. The ECM detects that the atmospheric pressure signal voltage is out of range (below normal).

234 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The engine speed signal indicates that this parameter has exceeded the engine protection system enable limit. The ECM detects that the engine speed is above the calibrated limit.

238 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A low voltage was detected in the power supply circuit of the engine speed sensor +5 V. The ECM detects that the sensor supply voltage is out of range (below normal).

239 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A high voltage was detected in the power supply circuit of the 5 V engine speed sensor. The ECM detects that the sensor supply voltage is out of range (above normal).

241 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The vehicle speed signal is not received by the ECM module, or this signal changes randomly. The ECM detects a loss of the vehicle speed signal when other engine conditions indicate that the vehicle is in motion.

245 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Fan control circuit - voltage below normal or short circuit to low voltage circuit. A low signal voltage was detected in the fan control circuit when the ON command was given. The ECM detects that the fan control PWM signal is not equal to the system supply voltage when the signal is set to ON.

249 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A high signal voltage is detected in the ambient air temperature sensor circuit. The ECM detects that the ambient air temperature signal voltage is out of range (above normal).

256 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A low voltage was detected in the ambient air temperature sensor circuit. The ECM detects that the ambient air temperature signal voltage is out of range (below normal).

269 ISF (ISF 2.8, ISF 3.8) Indicator of passing the password check of the anti-theft system - chaotic or incorrect data. An attempt to start the engine without the permission of the anti-theft system. This DTC becomes active if the anti-theft system has not been disabled.

271 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A low signal voltage is detected in the fuel system control valve circuit. No PWM signal is detected in the fuel system actuator circuit at a level equal to the system supply voltage when the signal is on.

272 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 High signal voltage or open circuit detected in the fuel system control valve circuit. The ECM detects a short to voltage, a short between terminals, or an open in the fuel pump actuator valve circuit.

285 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The ECM does not receive messages from a device connected to the multiplex network in a timely manner or does not receive them at all. The ECM is not receiving messages over the multiplexed network from a device connected to it. The ECM detects an open or short circuit in the J1939 communications harness.

286 ISF (ISF 2.8, ISF 3.8) The ECM received only part of the information it expected from the network device. The ECM has received an invalid J1939 link message from the multiplexer for more than 1 second.

287 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The vehicle electronic control unit (VECU), included in the complete equipment, has detected an accelerator malfunction. The ECM is not receiving messages over the multiplexed network from a device connected to it.

288 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The vehicle electronic control unit (VECU) has detected a malfunction of the remote control accelerator. The ECM has received a message from the VECU (original equipment) via J1939 communication indicating that the remote control accelerator signal circuit or remote control switch is short to high or low.

291 ISF (ISF 2.8, ISF 3.8) Failure of the secure communication channel (communication channel with the complete equipment / vehicle) - the data update rate does not correspond to the norm. The anti-theft system will not work properly. The engine may not start. The ECM cannot communicate with the anti-theft system over the J1939 link

319 ISF (ISF 2.8, ISF 3.8) Interruption of the power supply to the real time clock - chaotic or incorrect data. Loss of power to the real time clock. The ECM determines that RTC data has been lost due to a power outage.

322 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A current is detected in injector 1 when the voltage is off. The ECM has detected an internal failure in the injector circuit (s). If the current is found to be higher than normal, the ECM will stop injecting through the faulty injector (s).

324 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A current is detected in injector 3 when the voltage is off. The ECM has detected an internal failure in the injector circuit (s). If the current is found to be higher than normal, the ECM will stop injecting through the faulty injector (s).

331 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A current is detected in injector 2 when the voltage is off. The ECM has detected an internal failure in the injector circuit (s). If the current is found to be higher than normal, the ECM will stop injecting through the faulty injector (s).

332 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A current is detected in injector 4 when the voltage is off. The ECM has detected an internal failure in the injector circuit (s). If the current is found to be higher than normal, the ECM will stop injecting through the faulty injector (s).

124 QSB 3.3 The intake manifold pressure has exceeded the maximum allowable value for the given rated engine power. This DTC becomes active when the intake manifold pressure exceeds the maximum allowable value for a given engine power rating.

135 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A high signal voltage is detected in the oil pressure sensor circuit. The ECM determines that the oil pressure sensor signal voltage is greater than 4.75 VDC for more than 16 seconds.

143 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Oil pressure sensor signal indicates that it is below the warning limit by the engine protection system. The ECM determines that the oil pressure sensor signal voltage is less than the limit set by the engine protection system.

242 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A high signal voltage is detected in the coolant level sensor circuit. The ECM determines that the coolant level sensor signal voltage has exceeded 5.124 VDC for more than 20 seconds.

ISB, ISC, ISL, ISLe, ISDe, QSB 281 3.3 Fuel pump delivery module - mechanical response is abnormal or regulation is out of order This DTC becomes active when a discharge pressure mismatch between the two high pressure plungers is detected in the fuel pump.

292 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Auxiliary temperature sensor input - special instructions. Verify that the electronic control module (ECM) is calibrated correctly.

293 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 High signal voltage or open circuit detected in the auxiliary temperature sensor circuit. Verify that the electronic control module (ECM) is calibrated correctly.

294 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 A low signal voltage was detected in the auxiliary temperature sensor circuit of the original equipment. Verify that the electronic control module (ECM) is calibrated correctly.

295 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Atmospheric pressure - chaotic or incorrect data. Chaotic nature of the ambient air pressure sensor signal when the start switch is turned ON for the first time.

296 QSB 3.3 Auxiliary Pressure Sensor Input - Special Instructions Verify that the electronic control module (ECM) is calibrated correctly.

297 QSB 3.3 Signal high voltage detected in the OEM pressure sensor circuit. Verify that the electronic control module (ECM) is calibrated correctly.

298 QSC 3.3 A low signal voltage or open circuit detected in the auxiliary pressure sensor circuit of the original equipment. Verify that the electronic control module (ECM) is calibrated correctly.

323 ISB, ISC, ISL, ISLe, ISDe Injector 5 detects a current when the voltage is off. The ECM has detected an internal failure in the injector circuit (s). If the current is found to be higher than normal, the ECM will stop injecting through the faulty injector (s).

325 ISB, ISC, ISL, ISLe, ISDe Injector 6 detects a current when the voltage is off. The ECM has detected an internal failure in the injector circuit (s). If the current is found to be higher than normal, the ECM will stop injecting through the faulty injector (s).

334 QSB 3.3 The coolant temperature signal does not change depending on engine operating conditions. The ECM detects that the engine coolant temperature signal voltage is out of range.

343 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Warning about internal failure of the ECM module - Logic device malfunction. Defective ECM power supply detected. This DTC is set when the ECM's internal diagnostic routine detects an internal write or read error in the module.

351 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Injector supply circuit - Logic device malfunction. Injector ON voltage measured by the ECM is low. The ECM determines that the injector supply voltage is less than a specified value.

352 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Injector supply circuit - Logic device malfunction. Injector ON voltage measured by the ECM is low. The ECM determines that the injector supply voltage is less than a specified value.

386 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A high voltage was detected in the sensor power supply circuit 1. The ECM determines that the voltage in the supply circuit of the sensors is above normal

415 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Oil pressure signal indicates that it is below the critical limit of the engine protection system The ECM determines that the signal voltage of the oil pressure sensor is below the minimum operating limit.

418 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The signal of water in the fuel is accurate, but above the norm is the lowest level of severity. The presence of water in the fuel filter has been detected. The ECM detects that the water level in the fuel filter is higher than the sensor level.

427 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Loss of communication between the ECM and another device over the SAE J1939 channel. The ECM detects an open or short circuit in the J1939 communications harness.

428 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Water in fuel sensor circuit - Voltage above normal or short circuit to high voltage circuit. The ECM determines that the sensor signal circuit voltage is greater than 4.95 VDC for 1 second.

429 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Water in fuel sensor circuit - Voltage below normal or short circuit to low voltage circuit. The ECM determines that the sensor signal circuit is less than 0.05 VDC for 1 second.

431 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Idle speed check sensor circuit - chaotic or incorrect data. The ECM detects a simultaneous signal voltage applied to the open and no-load terminals of the Idle Check Sensor. Voltage should only appear in one of the circuits.

432 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Circuit for checking the idle position of the pedal or accelerator lever - calibration violation. The ECM determines that the accelerator pedal position sensor and the idle speed check sensor signal do not match.

435 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Pressure in the main line of the lubrication system - chaotic or incorrect data The ECM has determined that the oil pressure is higher or lower than the readings of other absolute pressure sensors

441 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Battery voltage - accurate data, but below normal. The ECM supply voltage is below the minimum level. The ECM detects that the main battery voltage is less than 6 VDC.

442 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Battery voltage - accurate data, but above the norm. The ECM supply voltage is above the maximum level. The ECM detects that the main battery voltage is greater than 36 VDC.

449 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Pressure sensor circuit in the high pressure common fuel line - the data is accurate, but exceeds the norm. The ECM detects that the high pressure common rail pressure is higher than the fuel pressure relief valve.

451 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A high signal voltage is detected in the pressure sensor circuit in the high pressure common fuel line. The ECM determines that the fuel pressure sensor signal voltage is less than 0.20 VDC for more than 1 second.

452 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A low signal voltage is detected in the pressure sensor circuit in the high pressure common fuel line. The ECM determines that the fuel pressure sensor signal voltage is greater than 4.80 VDC for more than 1 second.

471 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The oil level in the engine is below normal The oil level sensor has detected a low oil level.

ISB, ISC, ISL, ISLe, ISDe, QSB 488 3.3 The intake manifold temperature sensor signal indicates that it is above the engine protection system warning limit. The ECM determines that the intake manifold temperature sensor signal voltage exceeds the calibrated limit set by the ECM

499 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Oil level sensor circuit - voltage below normal or short circuit to low voltage circuit. The ECM has detected an internal failure in the oil level sensor.

528 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Additional switch for selecting the torque curve - chaotic or incorrect data. The ECM determines that an open in the torque curve select switch circuit has been detected.

529 QSB 3.3 Auxiliary I / O - Voltage Above Normal or Short to High Voltage. The ECM determines that a high signal voltage has been detected on the auxiliary input / output circuit.

553 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The pressure sensor circuit in the high pressure common fuel line - the data is accurate, but exceeds the norm. The ECM has detected that the fuel pressure is higher than the target pressure.

554 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The pressure sensor circuit in the high pressure common fuel line - chaotic or incorrect data. The ECM has detected that there is no change in the fuel pressure sensor signal.

ISB, ISC, ISL, ISLe, ISDe, QSB 555 3.3 Crankcase Pressure — Accurate, but Above Normal — Medium Severity The ECM has determined that the crankcase pressure is above a specified level.

556 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Crankcase gas pressure - accurate, but above normal - the highest level of severity. The ECM has detected that the crankcase pressure is higher than the specified level.

559 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Pressure sensor circuit in the high pressure common fuel line - the data is accurate, but below the norm - the average level of severity. The ECM detects that the fuel pressure is below the target pressure.

584 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Starter relay control circuit - Voltage above normal or short circuit to high voltage circuit. An open circuit or high voltage is detected in the starter interlock circuit.

585 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Starter relay control circuit - Voltage below normal or short circuit to low voltage circuit. Low voltage detected in the starter interlock circuit.

596 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The battery voltage monitoring function has detected that it is high. The ECM detects that the battery voltage is greater than the calibration specified.

597 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The battery voltage monitoring function has detected that it is low. The ECM determines that the battery voltage is less than the calibrated voltage.

598 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 The battery voltage monitoring function has detected that it is very low. The ECM determines that the battery voltage is less than the calibrated voltage.

599 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The value of the signals of the dual outputs has exceeded the activation limit of the engine protection system. The ECM has determined that the dual output signals have exceeded the Engine Guardian Enable Limit.

649 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Change engine oil and filter. The ECM has determined that an engine oil and filter change is required based on a programmed parameter in the service monitoring function.

686 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Turbocharger speed - chaotic or incorrect data. The ECM has detected an invalid turbocharger speed signal.

687 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Turbocharger speed - accurate, but below normal - medium severity. The ECM has detected a low turbocharger speed.

688 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The oil level in the engine - the data is accurate, but above the norm. The oil level sensor has detected a high oil level.

689 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Engine speed / crankshaft position - chaotic or incorrect data. The ECM has detected a crankshaft position sensor signal error.

691 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A high signal voltage is detected in the turbocharger compressor inlet temperature sensor circuit. The ECM determines that the turbocharger compressor inlet temperature sensor signal voltage has been greater than 4.8 VDC for more than 1 second.

692 ISB, ISC ISL, ISLe, ISDe, QSB 3.3 A low signal voltage is detected in the turbocharger compressor inlet temperature sensor circuit. The ECM determines that the turbocharger compressor inlet temperature sensor signal voltage is less than 0.2 VDC for more than 1 second.

698 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Low signal voltage or open circuit detected in the ECM temperature sensor circuit. The ECM has detected a short to ground in the internal temperature sensor circuit.

699 ISF (ISF 2.8, ISF 3.8) An erroneous or unacceptable temperature inside the ECM was detected. The ECM detects that the ECM's internal temperature sensor signal is invalid.

731 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB 3.3 Signals from the engine speed sensor and the camshaft position sensor are not coordinated. The ECM has determined that the crankshaft position does not match the camshaft position sensor signal input to the ECM.

778 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 The ECM has detected an error in the camshaft position sensor signal. The ECM has detected that the RPM / CMP sensor signal has been missing for more than 1 second.

ISB, ISC, ISL, ISLe, ISDe, QSB 779 3.3 Accessory Sensor Input Circuit - Unknown Root Cause The signal from the OEM accessory has exceeded the Engine Guardian Limit.

784 ISB, ISC, ISL, ISLe, ISDe, QSB 3.3 Loss of communication with the adaptive cruise control system. The ECM has not received a valid J1939 multiplex message from the ACC for more than 1 second.

779 ISB, ISC, ISL, ISLe, ISDe, QSB Accessory Sensor Input Circuit - Unknown Root Cause The signal from the OEM accessory has exceeded the Engine Guardian Limit.

784 ISB, ISC, ISL, ISLe, ISDe, QSB Loss of communication with the adaptive cruise control system. The ECM has not received a valid J1939 multiplex message from the ACC for more than 1 second.

1117 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM Power failure when the starting switch is set to ON. - chaotic or incorrect data. The module's power supply voltage momentarily drops below the calibrated limit, or the ECM does not properly disconnect power.

1239 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high voltage is detected in the pedal or accelerator lever sensor circuit. The ECM determines that the accelerator pedal position sensor signal voltage is greater than the calibrated value for more than 1 second.

1241 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A low voltage is detected in the pedal or accelerator lever 2 sensor circuit. The ECM determines that the accelerator pedal position sensor signal voltage is less than the calibrated value for more than 1 second.

1242 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Pedal or accelerator lever position sensors - Chaotic or incorrect data. The ECM has determined that the accelerator position sensor 1 readings differ from the accelerator position sensor readings by more than 2%.

1663 ISB, ISC, ISL, ISLe, ISDe, QSB Temperature sensors at the inlet and outlet of the catalytic converter are reversed - the state is preserved. The engine control module (ECM) detects that the inlet temperature to the exhaust gas aftertreatment catalytic converter is higher than the inlet temperature to the particulate filter during active particulate filter regeneration.

1664 ISB, ISC, ISL, ISLe, ISDe, QSB There is no catalytic converter in the exhaust system. The electronic control module (ECM) detects that the inlet temperature to the catalytic converter and the inlet temperature to the particulate filter are the same during active regeneration of the exhaust gas aftertreatment system.

1665 ISB, ISC, ISL, ISLe, ISDe, QSB A low signal voltage is detected in the catalytic converter input temperature sensor circuit. The ECM determines that the catalyst inlet temperature sensor signal voltage is less than 0.1 VDC for more than 2 seconds.

1666 ISB, ISC, ISL, ISLe, ISDe, QSB A high signal voltage is detected in the catalytic converter inlet temperature sensor circuit. The ECM determines that the catalytic converter inlet temperature sensor signal voltage is greater than 4.97 VDC for more than 2 seconds.

1667 ISB, ISC, ISL, ISLe, ISDe, QSB The signal from the temperature sensor at the inlet of the catalytic converter does not change when the engine operating conditions change. The ECM determines that the catalytic converter upstream temperature sensor signal does not change when the engine operating conditions change.

1668 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM A low signal voltage is detected in the level sensor circuit. The ECM detects that the fluid level signal voltage in the exhaust gas cleaning fluid tank is out of range (below normal).

1669 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The ECM detects that the fluid level signal voltage in the exhaust gas cleaning fluid tank is out of range (above normal).

1671 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The level of the liquid for cleaning the exhaust gases in the tank is very low. A low fluid level has been detected in the exhaust gas cleaning tank.

1673 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The level of the liquid for cleaning the exhaust gases in the tank has decreased to a critical level. Critically low level of liquid for cleaning the exhaust gases in the tank.

1674 ISB, ISC ISL, ISLe, ISDe, QSB A low signal voltage is detected in the temperature sensor circuit at the inlet of the particulate filter of the exhaust gas purification system. The ECM determines that the particulate filter inlet temperature sensor signal voltage is less than 0.1 VDC for more than 2 seconds.

1675 ISB, ISC ISL, ISLe, ISDe, QSB A high signal voltage was detected in the temperature sensor circuit at the inlet of the particulate filter of the exhaust gas purification system. The ECM determines that the particulate filter inlet temperature sensor signal voltage has been greater than 4.97 VDC for more than 2 seconds.

1676 ISB, ISC, ISL, ISLe, ISDe, QSB The signal from the temperature sensor at the inlet of the particulate filter does not change when the engine operating conditions change. The ECM determines that the particulate filter inlet temperature sensor signal does not change with changing engine operating conditions.

1677 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The circuit of the temperature sensor in the tank of the exhaust gas cleaning system - voltage below normal or short circuit to low voltage circuit. The ECM detects that the temperature signal voltage in the exhaust gas cleaning fluid tank is out of range (below normal).

1678 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The circuit of the temperature sensor in the tank of the exhaust gas cleaning system of diesel engines - voltage is above normal or a short circuit to the high voltage circuit. The ECM determines that the particulate filter inlet temperature sensor signal does not change with changing engine operating conditions.

1682 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM Liquid metering unit for cleaning exhaust gases does not fill the system. The liquid dosing unit for exhaust gas cleaning does not ensure successful filling of the system after several attempts.

1683 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high signal voltage is detected in the fluid heater circuit in the exhaust gas purification tank. The ECM detects a short to positive in the battery or an open in the exhaust gas cleaning fluid tank heater circuit.

1684 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM In the circuit of the fluid heater in the tank of the exhaust gas cleaning system of diesel engines, a low signal voltage is detected. The ECM detects an under voltage or short to ground in the flue gas tank heater circuit.

1689 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM Real time clock power interruption - chaotic or incorrect data. The ECM determines that RTC data has been lost due to a power outage.

1691 ISB, ISC ISL, ISLe, ISDe, QSB The temperature increase in the catalytic converter of the exhaust gas purification system is less than expected. The ECM has calculated by calculation that the efficiency of the catalytic converter is lower than required to successfully complete the regeneration.

ISF 1694 ISF 2.8, ISF 3.8 The ECM determines that the NOx sensor signal does not change when the engine operating conditions change.

1695 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high voltage was detected in the sensor power supply circuit in the complete equipment wiring harness. The ECM detects that the sensor supply voltage is out of range (above normal).

1696 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The ECM detects that the sensor supply voltage is out of range (below normal).

1712 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM An exhaust gas cleaning fluid heater cannot melt frozen fluid. The ECM detects that the exhaust gas cleaning fluid heater cannot melt frozen fluid.

1713 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Heater of fluid in the tank of the exhaust gas cleaning system - the data is accurate, but above the norm - the average level of severity. The liquid heater for cleaning the exhaust gases in the tank is constantly on. The ECM has determined that the temperature of the exhaust gas cleaning fluid in the tank is greater than 75 ° C.

1843 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high signal voltage is detected in the crankcase gas pressure sensor circuit. The ECM determines that the crankcase pressure sensor signal voltage is greater than 4.8 VDC for more than 1 second.

1844 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A low signal voltage is detected in the crankcase gas pressure sensor circuit. The ECM determines that the crankcase pressure sensor signal voltage is less than 0.2 VDC for more than 1 second.

1852 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The water-in-fuel sensor indicates a water level exceeding the warning limit. The ECM detects the presence of water in the fuel for a long time.

1866 ISB, ISC ISL, ISLe, ISDe, QSB Differential pressure sensor circuit on the EGR valve - chaotic or incorrect data. An EGR differential pressure sensor signal error has been detected, or the sensor has failed the autozero test.

1876 ISB, ISC ISL, ISLe, ISDe, QSB A high signal voltage or an open circuit is detected in the exhaust gas purification particulate filter outlet temperature sensor circuit. The ECM determines that the particulate filter outlet temperature sensor signal voltage has been greater than 4.97 VDC for more than 2 seconds.

1877 ISB, ISC ISL, ISLe, ISDe, QSB A low signal voltage is detected in the exhaust gas purification particulate filter outlet temperature sensor circuit. The ECM determines that the particulate filter outlet temperature sensor signal voltage is less than 0.1 VDC for more than 2 seconds.

1878 ISB, ISC ISL, ISLe, ISDe, QSB The signal from the temperature sensor at the exit of the particulate filter does not change when the engine operating conditions change. The temperature in the exhaust gas cleaning system is chaotic or incorrect data.

1879 ISB, ISC ISL, ISLe, ISDe, QSB A high signal voltage is detected in the differential pressure sensor circuit in the exhaust gas cleaning system. The ECM determines that the DPF sensor signal voltage is greater than 4.75 VDC for more than 1 second.

1881 ISB, ISC ISL, ISLe, ISDe, QSB A low signal voltage or an open circuit is detected in the differential pressure sensor circuit on the particulate filter of the exhaust gas purification system. The ECM determines that the DPF sensor signal voltage is less than 0.25 VDC for more than 1 second.

1883 ISB, ISC ISL, ISLe, ISDe, QSB Differential pressure sensor on the particulate filter of the exhaust gas purification system - chaotic or incorrect data. Chaotic signal from the differential pressure sensor on the particulate filter of the exhaust gas purification system.

1896 ISB, ISC, ISL, ISLe, ISDe, QSB EGR valve controller - incorrect calibration. Exhaust Gas Recirculation Valve Auto Calibration Procedure Not Performed

1887 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM An internal malfunction of the nitrogen oxide sensor at the outlet of the exhaust gas cleaning system has been detected.

1899 ISB, ISC ISL, ISLe, ISDe, QSB The differential pressure sensor in the EGR has detected a low gas flow rate in the EGR system, or the differential pressure sensor does not match the operating conditions of the engine. EGR Valve Differential Pressure - Accurate, but Above Normal - Medium Severity.

1911 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISF (ISF 2.8, ISF 3.8) The pressure sensor circuit in the high pressure common fuel line, but exceeds the norm. The ECM detects that the high pressure common rail pressure is higher than specified.

1921 ISB, ISC, ISL, ISLe, ISDe, QSB The amount of soot in the particulate filter of the exhaust gas purification system exceeds the recommended limits. The ECM detects that the exhaust gas aftertreatment particulate filter is exceeding normal soot (medium severity). To remove soot, regeneration of the exhaust gas cleaning system is required.

1922 ISB, ISC ISL, ISLe, ISDe, QSB3 The amount of soot in the particulate filter of the exhaust gas purification system exceeds the recommended limits. The ECM detects that the amount of soot in the particulate filter of the exhaust gas aftertreatment system has exceeded the maximum allowed limit.

1938 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The turbocharger geometry control actuator detected a low battery supply voltage. Electronic Control Module Supply Voltage — Accurate but Above Normal — Medium Severity.

1942 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The ECM has determined that the crankcase pressure sensor signal does not change when the engine operating conditions change. The ECM detects that the temperature sensor signal is chaotic.

1943 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISX, QSX, ISM Engine torque is reduced due to vehicle operation at high altitude. The ECM has determined that the ambient air pressure is below a calibrated value.

1962 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high internal temperature of the turbocharger geometry change drive is detected. This DTC is set when the internal temperature of the turbocharger geometry change actuator exceeds 125 ° C continuously for 30 minutes.

1966 ISB, ISC, ISL, ISLe, ISDe, QSB The temperature of the exhaust gases entering the exhaust gas treatment system exceeds the engine protection limit. The ECM detects that there is an elevated temperature in the exhaust gas aftertreatment system, provided that the exhaust gas aftertreatment particulate filter is not actively regenerated.

1968 ISB, ISC, ISL, ISLe, ISDe, QSB Temperature sensor # 2 at the inlet of the particulate filter exceeded the maximum temperature limit. The reading from the # 2 temperature sensor at the particle filter inlet exceeds 649 ° C for 5 seconds and then drops to below 550 ° C.

1969 ISB, ISC, ISL, ISLe, ISDe, QSB The reading of the temperature sensor # 2 at the inlet of the particulate filter exceeded the maximum limit of the engine protection system by temperature. The reading from temperature sensor # 2 at the inlet of the particulate filter is critical.

1972 ISB, ISC, ISL, ISLe, ISDe, QSB Temperature sensor # 3 at the inlet of the particulate filter exceeded the maximum temperature limit. The PM filter outlet temperature reading exceeds 649 ° C for 5 seconds and then drops to below 575 ° C.

1973 ISB, ISC, ISL, ISLe, ISDe, QSB The reading of the temperature sensor # 3 at the inlet of the particulate filter exceeded the maximum limit of the engine protection system by temperature. Temperature sensor # 3 at the inlet of the particulate filter is critical.

1974 ISB, ISC, ISL, ISLe, ISDe, QSB The crankcase ventilation filter requires service. The ECM has determined that the crankcase pressure is above a calibrated level.

1981 ISB, ISC, ISL, ISLe, ISDe, QSB The differential pressure across the particulate filter has exceeded the maximum operating limit, or the particulate filter is clogged. The ECM determines that the exhaust gas aftertreatment particulate filter is clogged or that the differential pressure across the particulate filter exceeds the maximum limit.

1993 ISB, ISC, ISL, ISLe, ISDe, QSB There is no particulate filter for the exhaust gas purification system. Lack of a particulate filter of the exhaust gas cleaning system.

2182 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM An open circuit or high voltage was detected in the signal circuit of the engine brake solenoid valve. A greater than required PWM signal is detected in the engine brake circuit when the ECM is OFF.

2183 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A low voltage is detected in the engine brake solenoid valve signal circuit. No PWM signal was detected in the engine brake circuit at a level equal to the system supply voltage when the signal is on.

2185 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high voltage is detected in the power supply circuit (5 V) of the accelerator position sensor. The ECM detects that the sensor supply voltage is out of range (above normal).

2186 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The ECM detects that the sensor supply voltage is out of range (below normal).

2195 ISB, ISC, ISL, ISLe, ISDe, QSB Emergency exit door detected. A DTC is set when the vehicle's emergency exit door is open.

2198 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The variable geometry turbocharger controller does not correctly recognize the J1939 messages received over the multiplexed network from the ECM. The ECM has not received a valid J1939 multiplexed message from the ECM for more than 1 second.

2265 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high voltage or open circuit is detected in the fuel pump signal circuit. A pulse width modulated signal greater than 0 V is detected on the fuel boost pump circuit when the signal is turned off by the ECM.

2266 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A 0 V pulse width modulated signal is detected on the booster fuel pump circuit when the signal is enabled by the ECM and should be equal to the system supply voltage.

2272 ISB, ISC ISL, ISLe, ISDe, QSB, ISX, QSX A low signal voltage is detected in the EGR valve position sensor circuit. The ECM determines that all position sensors indicate a high signal (or all position sensors indicate a low signal).

2273 ISB, ISC ISL, ISLe, ISDe, QSB, ISX, QSX A high signal voltage has been detected in the EGR differential pressure sensor circuit. The ECM determines that the EGR valve differential pressure sensor signal voltage is greater than 4.8 VDC for more than 4 seconds.

2274 ISB, ISC ISL, ISLe, ISDe, QSB, ISX, QSX A low signal voltage is detected in the differential pressure sensor circuit in the EGR. The ECM determines that the EGR valve differential pressure sensor signal voltage is less than 0.26 VDC for more than 2 seconds.

2288 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM The ECM has detected a high turbocharger speed. The ECM has determined that the turbocharger speed is greater than the maximum limit set in the calibration.

2311 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Too high or too low resistance of the fuel system control valve circuit. A DTC will be set when there are disappearing failures in the fuel pump actuator valve circuit.

2321 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Periodic violation of the timing of the crankshaft speed sensor. The ECM detects a disappearing or weakened RPM / CKP sensor signal after a period of engine run time.

2322 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Periodic violation of the timing of the camshaft speed sensor. The ECM has detected a disappearing RPM / CMP sensor signal missing.

2345 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The turbocharger speed sensor shows an error when determining the speed. The ECM has determined that the turbocharger speed is increasing faster than is physically achievable for the turbocharger.

2346 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX The temperature at the turbocharger turbine inlet has exceeded the engine protection activation limit. The ECM has determined that the calculated turbine inlet temperature is greater than the calibrated value.

2347 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Turbocharger compressor outlet air temperature high (calculated by ECM) The ECM has determined that the calculated compressor outlet temperature turbocharger exceeds 238 ° C.

2349 ISB, ISC, ISL, ISLe, ISDe, QSB, ISX, QSX The ECM has detected an open lead or motor winding. The ECM has detected an open in the engine wiring harness or EGR valve motor coil.

2351 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX The ECM has detected a short circuit of the terminals or motor winding to ground or the power supply circuit. The ECM has detected a short in the EGR valve motor circuits.

2357 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX The cycle time of the EGR valve motor has been exceeded, indicating that the valve is stuck in the open position. This DTC will set when the duty cycle required to open the EGR valve exceeds 95% for 3 seconds. The EGR valve controller will attempt to reopen the valve after 10 seconds. The malfunction code is registered after three unsuccessful attempts.

2359 ISB, ISC ISL, ISLe, ISDe, QSB, ISX, QSX The differential pressure sensor in the EGR system has detected a high gas flow rate in the EGR system, or the differential pressure sensor reading does not match the operating conditions of the engine. The differential pressure in the EGR is greater than the value set in the calibration.

2363 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM A low voltage is detected in the engine brake solenoid valve signal circuit. No PWM signal was detected in the engine brake circuit at a level equal to the system supply voltage when the signal is on.

2367 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX An open circuit or high voltage was detected in the signal circuit of the engine brake solenoid valve. A pulse width modulated signal has been detected in the engine brake circuit at a level equal to the system supply voltage when the signal is OFF.

2369 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX A low signal voltage is detected in the engine brake control circuit. The ECM detects that the engine brake control circuit has a short to low voltage.

2371 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Engine brake drive circuit - voltage above normal or short circuit to high voltage circuit. The ECM detects that the engine brake control circuit has a short to high voltage.

2373 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Exhaust pressure sensor circuit - voltage above normal or short to high voltage circuit. The ECM determines that the exhaust pressure sensor signal voltage has been greater than 4.75 VDC for more than 4 seconds.

2374 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Exhaust pressure sensor circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that the exhaust pressure sensor signal voltage is less than 0.25 VDC for more than 4 seconds.

2375 ISB, ISC ISL, ISLe, ISDe, QSB, ISX, QSX Exhaust gas recirculation temperature sensor circuit - voltage above normal or short circuit to high voltage circuit. The ECM determines that the EGR temperature sensor signal voltage is greater than 5.1 VDC for more than 1 second.

2376 ISB, ISC, ISL, ISLe, ISDe, QSB, ISX, QSX Exhaust gas recirculation temperature sensor circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that the EGR temperature sensor signal voltage is below 0.09 VDC for more than 1 second.

2377 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Fan control circuit - Voltage above normal or short circuit to high voltage circuit. The ECM detects a PWM signal greater than 0 V on the fan control circuit when the signal is OFF by the ECM.

2387 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The turbocharger geometry change logic controller has detected incorrect end positions, or the turbocharger geometry change drive cannot move to the closed position. The DTC sets when the actual position of the turbocharger geometry change actuator does not match the specified one for more than 10 seconds.

2448 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM Low coolant level detected. The ECM determines that the coolant level is below the limit for normal operating conditions.

2449 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Turbocharger geometry change drive controller - wrong calibration. The position of the actuator at initial power up is not internally detected due to a jammed mechanism or internal malfunctions. The actual position of the turbocharger geometry change actuator is unknown.

2451 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The temperature at the turbocharger turbine inlet has exceeded the engine protection activation limit. The ECM has determined that the calculated turbine inlet temperature is greater than the calibrated value.

2554 ISB, ISC ISL, ISLe, ISDe, QSB, ISX, QSX Chaotic nature of the signal from the pressure sensor in the exhaust system at the first turn of the starting switch to the ON position. 1. The ECM has determined that the exhaust system pressure is higher or lower than the other MAP sensors after turning the ignition switch ON when the engine is not running. 2. The ECM has determined that the exhaust pressure during normal engine operation is less than the calibration value.

2555 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high signal voltage is detected in the intake system heater circuit. A pulse width modulated signal greater than 0 V was detected on the fan control circuit when the signal is turned off by the ECM.

2556 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A low signal voltage is detected in the intake system heater circuit. No PWM signal was detected in the intake system heater circuit at a level equal to the system supply voltage when the signal is on.

2557 QSB Auxiliary PWM Signal Circuit Voltage Above Normal or Short to High Voltage. A high signal voltage has been detected in the analog torque signal circuit.

2558 QSB Auxiliary PWM Signal Circuit Voltage Below Normal or Short to Low Voltage. A low signal voltage has been detected on the analog torque signal circuit.

2634 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The variable geometry turbocharger logic controller has detected an internal error. The turbocharger geometry change actuator has detected an internal error in the turbocharger logic controller.

2635 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM An inconsistency in the calibration of the turbocharger geometry change actuator and the ECM module was detected. 1. The ECM has detected an inconsistency in the calibration of the turbocharger geometry actuator and the ECM. 2. The turbocharger geometry actuator has detected that the supply voltage does not match the installed actuator, given the part number. 3. The ECM has determined that the turbocharger has an inappropriate geometry change actuator.

2636 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Turbocharger geometry change drive chain - the data update rate is not correct. The main engine ECM is not receiving a valid J1939 multiplex message from the turbocharger geometry actuator for more than 1 second.

2637 ISB, ISC, ISL, ISLe, ISDe, QSB The front end surface of the catalytic converter has been clogged with soot. The ECM detects conditions for a clogged end of the catalytic converter and the possibility that a clogging has occurred.

2638 ISB, ISC ISL, ISLe, ISDe, QSB The temperature increase in the catalytic converter of the exhaust gas purification system is less than expected. The ECM has calculated by calculation that the efficiency of the catalytic converter is lower than required to successfully complete the regeneration.

2639 ISB, ISC ISL, ISLe, ISDe, QSB The amount of soot in the particulate filter of the exhaust gas purification system exceeds the recommended limits. The ECM determines that the exhaust gas aftertreatment particulate filter has exceeded normal soot (lowest severity). To remove soot, regeneration of the exhaust gas cleaning system is required.

2646 ISB, ISC ISL, ISLe, ISDe, QSB The EGR valve is closed to reduce the coolant temperature. Coolant temperature - status is maintained.

2659 ISB, ISC ISL, ISLe, ISDe, QSB The EGR valve is closed to reduce the coolant temperature. Coolant temperature - status is maintained.

2728 ISB, ISC ISL, ISLe, ISDe, QSB Active regeneration of the particulate filter of the exhaust gas purification system has been found to be ineffective. The exhaust gas cleaning system has determined that the active regeneration time is longer than the time specified in the calibration and that the temperature in the exhaust gas cleaning system has not reached the minimum value to perform a complete regeneration of the particulate filter.

ISB, ISC ISL, ISLe, ISDe, QSB 2742 Temperatures in the exhaust gas cleaning system do not reach the values required for regeneration in stationary conditions. 1. The ECM determines that the measured catalytic converter inlet temperature is not at the level required for steady state regeneration. 2. The ECM determines that the temperature of the exhaust gases entering the exhaust gas aftertreatment system is not high enough to remove water from the system when the engine is idling for extended periods.

ISB, ISC ISL, ISLe, ISDe, QSB 2743 Temperatures in the exhaust gas cleaning system do not reach the values required for regeneration in stationary conditions. 1. The ECM determines that the measured catalytic converter inlet temperature is not at the level required for steady state regeneration. 2. The ECM determines that the temperature of the exhaust gases entering the exhaust gas cleaning system is not high enough to remove water from the system when the engine is idling for extended periods.

2754 ISB, ISC ISL, ISLe, ISDe, QSB An increased amount of black smoke from the engine to the particulate filter of the exhaust gas purification system has been detected. This DTC is set when soot builds up inside the particulate filter faster than under normal conditions.

2765 ISB, ISC, ISL, ISLe, ISDe, QSB Injector group barcodes - wrong calibration. Incorrect injector barcode information entered. The ECM determines that the injector barcode values entered into the ECM are incorrect.

2771 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Nitrogen oxides content sensor at the outlet of the exhaust gas purification system - The data update rate is not correct. Communication failure between the ECM and the NOx sensor in the exhaust gas over the SAE J1939 communication channel.

2772 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Nitrogen oxide content sensor at the outlet of the exhaust gas purification system - the data is accurate, but above the norm - the lowest level of severity. The signal value of the nitrogen oxide content sensor exceeds the recommended level. This DTC is set when the diagnostic routine determines that the NOx sensor output is greater than the calibrated value for two consecutive ignition cycles.

2773 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The content of nitrogen oxides at the outlet of the exhaust gas treatment system is accurate data, but above the norm is the highest level of severity. The signal value of the nitrogen oxide content sensor exceeds the recommended level. This DTC is set when the diagnostic routine determines that the NOx sensor output is greater than the calibrated value for two consecutive ignition cycles.

2777 ISB, ISC ISL, ISLe, ISDe, QSB Regeneration of the particulate filter is disabled because the regeneration inhibit switch is in the inhibit position. This DTC is set when the Regeneration Inhibit switch is in the disabled position and DTC 1921, 1922, or 2639 becomes active due to a large amount of soot in the particulate filter.

2778 ISB, ISC, ISL, ISLe, ISDe, QSB Engine oil change is required due to its possible dilution with fuel. This DTC is set when the ECM detects that the engine oil can be diluted with fuel.

ISB, ISC, ISL, ISLe, ISDe, QSB 2813 The EGR valve is closed during regeneration of the particulate filter of the exhaust gas purification system. The exhaust gas cleaning control system has determined that the exhaust gas temperature is not high enough during active regeneration of the particulate filter of the exhaust gas cleaning system.

2961 ISB, ISC, ISL, ISLe, ISDe, QSB, ISX, QSX Exhaust Gas Recirculation Temperature - Accurate, but out of specification - Lowest Severity. The EGR temperature has exceeded the engine protection enable limit. The ECM detects that the EGR temperature has exceeded the calibrated temperature for more than 5 seconds.

2962 ISB, ISC, ISL, ISLe, ISDe, QSB, ISX, QSX The temperature in the exhaust gas recirculation system is accurate, but above the norm - an average level of severity. The EGR temperature has exceeded the engine protection enable limit. The ECM detects that the EGR temperature has been greater than 246 ° C for more than 5 seconds.

2963 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Coolant temperature - accurate data, but exceeding the norm - the lowest level of severity. The coolant temperature is above the Engine Guardian Warning Limit. The ECM determines that the coolant temperature sensor signal voltage exceeds the calibrated limit set by the ECM.

2964 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX Intake manifold temperature - accurate, but exceeding the norm - the lowest level of severity. An intake manifold temperature sensor signal indicates that it is above the Engine Guardian warning limit. The ECM determines that the intake manifold temperature sensor signal voltage exceeds the calibrated limit set by the ECM.

2973 ISF 2.8, ISF 3.8, ISB, ISC ISL, ISLe, ISDe, QSB, ISM, ISX, QSX The ECM has detected that the intake manifold pressure sensor signal is not correct for the given engine operating conditions. The ECM determines that the intake manifold pressure sensor signal does not change with changing engine operating conditions or is chaotic when the ignition switch is turned ON.

3142 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM High signal voltage detected in the temperature sensor circuit at the inlet of the catalytic converter. The ECM determines that the catalytic converter inlet temperature sensor signal voltage is greater than 4.4 VDC for more than 2 seconds.

3143 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Low signal voltage detected in the temperature sensor circuit. The ECM determines that the catalytic converter inlet temperature sensor signal voltage is less than 0.13 VDC for more than 2 seconds.

3144 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The signal from the temperature sensor at the inlet to the catalytic converter does not change when the engine operating conditions change. The ECM determines that the catalytic converter inlet temperature sensor signal is invalid (contrary to common sense) for more than 5 minutes.

3164 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM High temperature detected at the inlet of the catalytic converter. The ECM has determined that the inlet temperature to the catalytic converter is higher than the calibrated value.

3236 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM High temperature detected at the outlet of the catalytic converter. The ECM has determined that the catalytic converter outlet temperature is higher than the value set in the calibration.

3242 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Heater fluid for cleaning the exhaust gases - the reaction of the mechanical system is not correct or the regulation is out of order. The ECM issued a command to turn on the exhaust gas purification tank fluid heater, but the tank temperature sensor did not register an increase.

3326 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The ECM does not receive the expected data from the accelerator position sensor connected to the multiplex network, or does not receive it at all. The ECM is not receiving messages over the multiplexed network from a device connected to it.

3492 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM The real time clock indicates the stop of the engine off timer. The engine off timer is not working properly and does not match other timers in the ECM.

3558 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Fluid metering unit for diesel engine exhaust systems - voltage above normal or short circuit to high voltage circuit. The ECM detects that the exhaust gas treatment fluid metering valve circuit is short to high, low, or open.

3559 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Liquid metering unit for diesel engine exhaust systems - voltage below normal or short circuit to low voltage circuit. The ECM detects that the signal or power supply to the exhaust gas treatment fluid metering unit is out of range (below normal).

3567 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM An internal error has been detected in the fluid metering valve circuit for cleaning the exhaust gases. The ECM detects that the exhaust gas treatment fluid metering valve circuit is short to high, low, or open.

3568 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A mechanical malfunction of the liquid metering valve for exhaust gas purification systems has been detected. The ECM detects that the exhaust gas cleaning fluid pressure is above a threshold.

3571 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A high signal voltage has been detected in the exhaust gas cleaning fluid pressure sensor circuit. The ECM detects that the signal voltage of the exhaust gas cleaning fluid pressure sensor is out of range (above normal).

3572 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The ECM detects that the signal voltage of the exhaust gas cleaning fluid pressure sensor is out of range (below normal).

3574 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM Low fluid pressure detected in the metering unit. The ECM determines that the exhaust gas cleaning fluid pressure is below the threshold.

3575 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The liquid metering unit for cleaning the exhaust gases has detected a blockage in the return line of the liquid for cleaning the exhaust gases. The ECM detects that the exhaust gas cleaning fluid pressure is above a threshold.

3577 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM Liquid drain valve in the exhaust gas cleaning system of diesel engines - voltage is above normal or short circuit to high voltage circuit. The ECM detects that the voltage at the exhaust gas purification fluid drain valve is out of range (above normal) or there is an open circuit.

3578 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM A low signal voltage is detected in the fluid drain valve circuit for diesel exhaust systems. The ECM detects that the voltage at the exhaust gas purification fluid drain valve is out of range (below normal).

3616 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The position of the turbocharger nozzle with variable geometry - the reaction of the mechanical system is not correct or the regulation is broken. The ECM has determined that the turbocharger geometry actuator is in the wrong position when the start switch is turned ON.

3681 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The nitrogen oxide content sensor has detected a malfunction in the sensor power supply circuit. The ECM determines that the NOx sensor supply voltage is above or below the calibration threshold.

3697 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, QSB, ISM An internal error of the ECM module related to software failures. The ECM has detected a software or calibration error.

3738 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, QSB, ISM The supply of fluid for the exhaust systems of diesel engines to the metering unit is interrupted. The metering unit detects that the air supply to the exhaust gas cleaning system is interrupted during the metering of liquid for the exhaust systems of diesel engines.

4157 ISF (ISF 2.8, ISF 3.8) The valve for draining the liquid for cleaning the exhaust gases - the reaction of the mechanical system is absent or the regulation is disturbed. The ECM detects that the exhaust gas cleaning fluid pressure does not drop when the exhaust gas cleaning fluid drain valve is commanded ON.

4172 ISF (ISF 2.8, ISF 3.8) High signal voltage detected in the air pressure sensor circuit in the metering system. The ECM detects that the voltage in the signal circuit of the air pressure sensor in the exhaust gas cleaning fluid is out of range (above normal)

4173 ISF (ISF 2.8, ISF 3.8) Absolute air pressure sensor in the metering system - voltage below normal or short circuit to low voltage circuit. A low signal voltage is detected in the metering air pressure sensor circuit. The ECM detects that the voltage in the signal circuit of the air pressure sensor in the exhaust gas cleaning liquid metering system is out of range (below normal)

4174 ISF (ISF 2.8, ISF 3.8) Temperature sensor in the liquid metering system for cleaning exhaust gases - voltage above normal or short circuit to high voltage circuit. A high signal voltage has been detected in the exhaust gas cleaning fluid temperature sensor circuit. The ECM detects that the voltage on the exhaust gas treatment fluid metering system temperature sensor signal circuit is out of range (above normal).

4175 ISF (ISF 2.8, ISF 3.8) Temperature sensor in the liquid metering system for cleaning exhaust gases - voltage below normal or short circuit to low voltage circuit. A low signal voltage is detected in the temperature sensor signal circuit in the exhaust gas cleaning fluid metering system. The ECM detects that the voltage on the exhaust gas cleaning fluid metering system temperature sensor signal circuit is out of range (below normal).

4176 ISF (ISF 2.8, ISF 3.8) Air valve of the reagent dosing system - voltage is above normal or short circuit to high voltage circuit. A high signal voltage is detected in the metering air valve circuit. The ECM detects that the metering air valve circuit has a short to high voltage.

4177 ISF (ISF 2.8, ISF 3.8) Air valve for liquid metering system for cleaning exhaust gases - voltage below normal or short circuit to low voltage circuit. A low signal voltage is detected in the metering air valve circuit. The ECM detects that the metering air valve circuit has a short to low voltage.

ISF 4238 (ISF 2.8, ISF 3.8) The air pressure in the dosing system of the liquid for cleaning the exhaust gases - the data is accurate, but below the norm, the average level of severity. Low air pressure detected in the dosing unit. The ECM detects that the air pressure in the metering system is out of range (below normal).

ISF 4239 (ISF 2.8, ISF 3.8) The air pressure in the dosing system of the liquid for cleaning the exhaust gases - the data is accurate, but above the norm, the average level of severity. High air pressure detected in the dosing unit. The ECM detects that the air pressure in the metering system is out of range (above normal).

4271 ISF (ISF 2.8, ISF 3.8) Air valve of the liquid metering unit for cleaning the exhaust gases - the reaction of the mechanical system does not correspond to the norm, or the regulation is out of order. High air pressure is detected in the dosing unit while priming the system when the signal to close is given to the dosing unit air valve. The ECM detects that the air pressure in the metering system is out of range (above normal).

175 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM The ECM detects a short to voltage or an open in the intake throttle motor.

176 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM Electronic throttle actuator circuit - voltage below normal or short circuit to low voltage circuit. The ECM detects a short to ground in the intake throttle motor power supply circuit.

ISF 177 (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM The ECM detects that the response of the mechanical electronic throttle actuator system is abnormal.

187 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Sensor supply circuit - Voltage below normal or short circuit to low voltage circuit. The ECM detects that the sensor supply voltage is less than the calibrated value for more than 1 second.

191 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM A / C clutch signal when ON indicates a short to ground. The ECM determines that the A / C clutch signal is indicating a short circuit

212 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Engine oil temperature sensor circuit - voltage above normal or short circuit to high voltage circuit. The ECM determines that the oil temperature sensor signal voltage has been greater than the calibrated value for more than 1 second.

213 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Engine oil temperature sensor circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that the oil temperature sensor signal voltage is below the calibrated value for more than 1 second.

214 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Engine oil temperature is accurate, but above normal is the highest level of severity. The ECM detects that the oil temperature is over 122 ° C for 5 seconds.

227 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Sensor supply circuit - Voltage above normal or short circuit to high voltage circuit. The ECM detects that the sensor supply voltage has been greater than the calibrated value for more than 1 second.

252 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM Engine oil level - chaotic or incorrect data. The ECM detects a chaotic signal from the oil level sensor.

253 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM Engine oil level - accurate, but below normal - highest severity ECM receives signal from oil level sensor - very low level detected oils.

254 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Fuel cutoff valve circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that a low voltage is detected on the fuel cutoff valve circuit.

255 ISF (ISF 2.8, ISF 3.8), ISB, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Fuel cutoff valve circuit - voltage above normal or short circuit to high voltage circuit. The ECM determines that an open or short to voltage is detected in the fuel cutoff valve circuit.

256 ISF (ISF 2.8, ISF 3.8), ISB, ISL, ISLe, ISDe, ISM Ambient air temperature sensor 1 circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that the ambient air temperature sensor signal voltage is less than 0.12 VDC for more than 1 second.

257 ISF (ISF 2.8, ISF 3.8), ISB, ISL, ISLe, ISDe, ISM Fuel cut-off valve - the reaction of the mechanical system is not correct, or the regulation is broken The ECM detects that the fuel cutoff valve is mechanically stuck in the open position, or that there is a leak.

311 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 1 injector solenoid valve relay circuit - current above normal or short to ground. Current detected at injector 1 when voltage is off. The ECM determines that the injector circuit has a short to voltage, a short to positive in the battery, or a low injector solenoid resistance.

312 ISB, ISD, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 5 injector solenoid valve relay circuit - current above normal or short to ground. Current detected at injector 5 when the voltage is off.

312 ISB, ISD, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 5 injector solenoid valve relay circuit - current above normal or short to ground. Current detected at injector 5 when the voltage is off. The ECM determines that the injector circuit has a short to voltage, a short to positive in the battery, or a low injector solenoid resistance.

313 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 3 injector solenoid valve relay circuit - current above normal or short to ground. Current detected at injector 3 when the voltage is off. The ECM determines that the injector circuit has a short to voltage, a short to positive in the battery, or a low injector solenoid resistance.

314 ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 6 injector solenoid valve relay circuit - current above normal or short to ground. The current detected at injector 6 when the voltage is off. The ECM determines that the injector circuit has a short to voltage, a short to positive in the battery, or a low injector solenoid resistance.

315 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 2 injector solenoid valve relay circuit - current above normal or short to ground. Current detected at injector 2 when the voltage is switched off. The ECM determines that the injector circuit has a short to voltage, a short to positive in the battery, or a low injector solenoid resistance.

321 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 4 injector solenoid valve relay circuit - current above normal or short to ground. Current detected at injector 4 when voltage is off. The ECM determines that the injector circuit has a short to voltage, a short to positive in the battery, or a low injector solenoid resistance.

338 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The circuit of the auxiliary relay for turning off the engine during prolonged idling - the voltage is above normal or a short circuit to the high voltage circuit. The ECM determines that an open or short has been detected in the extended idle / ignition cutoff auxiliary relay circuit.

339 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Auxiliary relay circuit for engine shutdown during prolonged idling - voltage below normal or short circuit to low voltage circuit. The extended idle / ignition cutout auxiliary relay circuit detects a low voltage when the relay is energized.

346 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Software for calibrating the ECM module - logic device malfunction. The ECM detects an invalid tuneable probe configuration setting.

356 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Intake air flow sensor circuit - voltage above normal or short circuit to high voltage circuit. The ECM determines that the MAF sensor signal is greater than the specified maximum limit.

357 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Intake air flow sensor circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that the MAF sensor signal is below the acceptable minimum limit.

358 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Intake air flow sensor circuit - chaotic or incorrect data. The MAF sensor signal does not match the engine operating conditions.

425 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Engine oil temperature - Chaotic or incorrect data The ECM determines that the engine oil temperature sensor reading is higher or lower than the reading other sensors installed on the engine after a prolonged stay of the engine in the off state.

436 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Intake manifold temperature sensor circuit - chaotic or incorrect data. The ECM determines that the intake manifold temperature sensor reading is higher or lower than other sensors installed on the engine after the engine has been off for an extended period.

465 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Turbocharger bypass valve control circuit - voltage above normal or short circuit to high voltage circuit. The ECM determines that a high voltage has been detected in the turbocharger bypass valve control circuit.

466 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Turbocharger bypass valve control circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that a low voltage has been detected in the turbocharger bypass valve control circuit.

477 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The voltage supplied to the liquid injection controller for diesel engine exhaust systems is below the voltage in the electrical system. The Diesel Exhaust Fluid Injection Controller detects that the battery voltage is below a threshold.

478 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The voltage supplied to the liquid injection controller for diesel engine exhaust systems exceeds the voltage in the electrical system. The Diesel Exhaust Fluid Injection Controller detects that the battery voltage is above a threshold.

491 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Turbocharger bypass valve control circuit - voltage above normal or short circuit to high voltage circuit. The ECM determines that a high voltage has been detected in the turbocharger bypass valve control circuit.

492 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Turbocharger bypass valve control circuit - voltage below normal or short circuit to low voltage circuit. The ECM determines that a low voltage has been detected in the turbocharger bypass valve control circuit.

498 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Oil level sensor circuit - voltage above normal or short circuit to high voltage circuit. The ECM detects a short in the signal circuit to battery positive or an open circuit in the ground circuit.

545 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Turbocharger bypass valve control circuit - the reaction of the mechanical system is not correct or the regulation is out of order. The ECM determines that the intake manifold pressure has exceeded the maximum allowable value for a given engine power rating.

693 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Turbocharger compressor inlet temperature - chaotic or incorrect data. The ECM detects that the turbocharger compressor inlet temperature sensor reading is too high or too low for the given engine operating conditions.

697 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The internal temperature sensor circuit of the ECM module - voltage above normal or short circuit to high voltage circuit. The ECM has determined that there is a short to the supply from the internal temperature sensor circuit.

1228 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The position of the EGR valve is a chaotic or incorrect data. The ECM determines that the EGR valve position sensor is giving a random signal or that the EGR valve position does not change when the engine operating conditions change.

1688 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid injection controller for the exhaust gas cleaning system - logic device malfunction. An internal error has been detected in the liquid injection controller for the exhaust gas aftertreatment system. The error has been reported to the ECM over the communication channel.

1697 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Air supply valve - voltage above normal or short circuit to high voltage circuit. The ECM determines that a high signal voltage is detected in the exhaust gas treatment fluid metering unit air solenoid circuit.

1698 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Air supply valve - voltage below normal or short circuit to low voltage circuit. The ECM determines that a low signal voltage is detected in the exhaust gas treatment fluid metering unit air solenoid circuit.

1711 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid metering unit for the exhaust gas purification system - the data update rate is not correct. Communication between the ECM and the exhaust gas treatment fluid metering unit has been interrupted.

1898 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Turbocharger geometry change drive controller - wrong calibration. The ECM has determined that the variable geometry turbocharger autocalibration routine has not been performed the first time the starter switch is turned ON.

2271 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX EGR valve position sensor circuit - voltage above normal or short circuit to high voltage circuit. The ECM determines that the EGR valve position sensor voltage is greater than the calibrated value.

2352 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX EGR valve control circuit - voltage above normal or short circuit to high voltage circuit. The ECM detects a high voltage is detected in the EGR valve motor circuit.

2398 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Ambient temperature - chaotic or incorrect data. The ECM has detected a chaotic ambient temperature sensor signal.

2442 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Relay of the solenoid valve of the injector cylinder 1 - Incorrect calibration. Incorrect injector barcode information entered. The ECM determines that the cylinder 1 injector barcode value has been incorrectly entered into the ECM.

2443 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 2 injector solenoid valve relay - incorrect calibration. Incorrect injector barcode information entered. The ECM determines that the cylinder 2 injector barcode value has been incorrectly entered into the ECM.

2444 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Relay solenoid valve injector cylinder 3 - Incorrect calibration. Incorrect injector barcode information entered. The ECM determines that the cylinder 3 injector barcode value has been incorrectly entered into the ECM.

2445 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Cylinder 4 injector solenoid valve relay - Incorrect calibration. Incorrect injector barcode information entered. The ECM determines that the cylinder 4 injector barcode value has been incorrectly entered into the ECM.

2976 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Temperature of the fluid metering unit for diesel engine exhaust systems - Chaotic or incorrect data. An internal error has been detected in the Diesel Exhaust Fluid Dosing Unit. The ECM determines that the diesel exhaust fluid metering unit internal temperature sensor signal is not consistent with other engine-mounted temperature sensors for two consecutive ignition cycles during diagnosis.

3145 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Catalytic converter inlet temperature sensor - The rate of change is not correct. The catalytic converter inlet temperature sensor does not respond to changes in engine operating conditions. The ECM determines that the inlet temperature to the catalytic converter does not change when the engine operating conditions change.

3146 ISF (ISF 2.8, ISF 3.8) ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The ECM detects that the catalytic converter downstream temperature sensor signal voltage is greater than the calibrated value when the start switch is in the ON position.

3147 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Catalytic converter outlet temperature sensor circuit - Voltage below normal or short circuit to low voltage circuit. The ECM detects that the catalytic converter downstream temperature sensor signal voltage is less than the calibrated value when the start switch is in the ON position.

3149 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The catalytic converter outlet temperature sensor does not respond to changes in engine operating conditions. The ECM determines that the catalytic converter outlet temperature does not change when the engine operating conditions change.

3151 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Absence of a catalytic converter in the exhaust gas purification system - the condition remains. The ECM determines that there is no selective catalytic converter in the exhaust system.

3163 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Incorrect connection of the temperature sensor at the inlet of the catalytic converter - Incorrect calibration. The connectors of the temperature sensors at the inlet and outlet of the catalytic converter are reversed. The ECM determines that the catalytic converter inlet and outlet temperature sensor signals are reversed.

3237 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX A high signal voltage has been detected in the fluid line heater circuit for diesel engine exhaust systems. The liquid injection controller in the diesel exhaust aftertreatment system detects that the voltage at the rail heater is greater than the calibrated value.

3238 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX A low signal voltage has been detected in the liquid line heater relay circuit for the exhaust gas cleaning system. The ECM detects that the voltage at the line heater is greater than the calibrated value.

3239 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX A high signal voltage has been detected in the heater 2 circuit of the fluid line for diesel exhaust systems. The ECM determines that the voltage at the line heater is below the calibrated value.

3258 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Heater circuit of the fluid line for the exhaust gas treatment system - current below normal or open circuit. The liquid injection controller for the exhaust gas aftertreatment system detects an open or short to ground in the rail heater circuit.

3261 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Heater circuit 2 of the fluid line for diesel exhaust systems - current below normal or open circuit. The diesel exhaust fluid injection controller detects an open or short to ground in the rail heater circuit.

3382 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Exhaust gas recirculation system - the data is accurate, but below the norm - the average level of severity. The ECM determines that the actual EGR flow is lower than the target based on the current engine operating conditions.

3383 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Exhaust gas recirculation system - the data is accurate, but above the norm - the average level of severity. The ECM determines that the actual EGR flow is higher than the target based on the current engine operating conditions.

3422 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Fluid heater 3 circuit in the exhaust gas cleaning system of diesel engines - voltage is above normal or short circuit to high voltage circuit. The Diesel Exhaust Gas Fluid Controller detects that the line heater voltage is greater than the calibrated value.

3425 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Heater 3 circuit fluid in the exhaust gas cleaning system of diesel engines - current below normal or open circuit. The diesel exhaust fluid injection controller detects an open or short to ground in the rail heater circuit.

3426 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Fluid heater 4 circuit in the exhaust gas cleaning system of diesel engines - voltage is above normal or short circuit to high voltage circuit. The Diesel Exhaust Gas Treatment Liquid Injection Controller (DI) detects that the heater voltage is greater than the calibrated value.

3429 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Heater circuit 4 fluid in the exhaust gas cleaning system of diesel engines - current below normal or open circuit. The Diesel Exhaust Fluid Injection Controller detects an open circuit in the heater circuit.

3539 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The ECM determines that the TP sensor voltage is greater than the calibrated value.

3541 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Intake throttle position sensor circuit - Voltage below normal or short to low voltage circuit. The ECM determines that the intake throttle position sensor voltage is less than the calibrated value.

3542 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX engine operation. The ECM detects that the intake throttle position sensor is abnormal or that the intake throttle position does not change when the engine operating conditions change.

3548 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Leakage from the dosing unit of liquid for the exhaust gas purification system - there is a malfunction The ECM module determines that the dosing unit does not provide filling systems.

3557 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid injection controller in the exhaust gas cleaning system of diesel engines - chaotic or incorrect data. The liquid injection controller in the exhaust gas treatment system of diesel engines has detected too high or too low voltage in one of the circuits of the metering unit.

3561 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Fluid metering unit for diesel engine exhaust systems - current below normal or open circuit. The ECM has detected an open circuit in the diesel metering unit circuit.

3562 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Relay for the heater of the liquid line for diesel engine exhaust systems - voltage above normal or short circuit to high voltage circuit. The Diesel Exhaust Fluid Injection Controller detects that the voltage on the Diesel Exhaust Fluid Heater Relay circuit is greater than the calibrated value.

3563 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Relay for the liquid line heater for diesel engine exhaust systems - voltage below normal or short circuit to low voltage circuit. The Diesel Exhaust Fluid Injection Controller detects that the voltage on the Diesel Exhaust Fluid Heater Relay circuit is less than the calibrated value.

3564 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Relay circuit of the liquid heater in the exhaust gas cleaning system of diesel engines - Current below normal or open circuit. An open circuit is detected in the liquid heater relay in the exhaust gas cleaning system of diesel engines. The Diesel Exhaust Fluid Injection Controller detects an open in the Diesel Exhaust Fluid Heater Relay circuit.

3565 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid metering valve for exhaust gas cleaning system - voltage above normal or short circuit to high voltage circuit. The EGR fluid injection controller detects that the voltage at the EGR fluid metering valve is greater than the value set in the calibration.

3566 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid metering valve for exhaust gas cleaning system - Voltage below normal or short circuit to low voltage circuit. The EGR fluid injection controller detects that the voltage at the EGR fluid metering valve is less than the value set in the calibration.

3569 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Inlet lines of the fluid metering unit for diesel engine exhaust systems - the reaction of the mechanical system is not correct or the regulation is out of order. The Diesel Exhaust Treatment Fluid Injection Controller has detected a mechanical failure in the metering unit inlet piping and the Diesel Exhaust Fluid is not being supplied to the metering valve.

3579 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid drain valve for diesel engine exhaust systems - current below normal or open circuit. The diesel exhaust fluid injection controller detects an open circuit in the diesel exhaust fluid drain valve circuit.

3596 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The fluid pressure sensor in the exhaust system of diesel engines recorded a value that is too low or too high for operating conditions. The Diesel Exhaust Fluid Metering Unit is unable to maintain the target Diesel Exhaust Fluid Pressure.

3597 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid injection controller for the exhaust gas purification system - The data update rate is not correct. The ECM determines that communication on the communication link between the ECM and the exhaust gas aftertreatment fluid injection module has been interrupted.

3598 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid injection controller for diesel engine exhaust systems - incorrect data received from the network. The ECM determines that the data transmitted by the ECM to the liquid injection controller for diesel exhaust systems is not readable or is missing.

3612 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Fluid metering unit for exhaust systems of diesel engines - the reaction of the mechanical system does not correspond to the norm or the regulation is out of order. The selective catalytic converter exhaust gas aftertreatment system detects an incomplete cycle when the power is turned off. The Diesel Exhaust Fluid Injection Controller detects an incomplete purge cycle when the power is turned off.

3648 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The temperature of the liquid injection controller for cleaning the exhaust gases - the data is accurate, but above the norm - the average level of severity. The ECM has determined that the internal temperature of the EGR fluid injection controller is above a warning limit.

3651 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The temperature of the liquid in the tank of the exhaust gas cleaning system of diesel engines is accurate, but below the norm - the average level of severity. The ECM determines that the temperature of the liquid in the exhaust tank of diesel engines cannot reach the specified level.

3679 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Liquid metering unit for cleaning exhaust gases - the underlying cause is unknown. Failed to initialize the dosing unit for liquid for cleaning the exhaust gases. The metering unit and liquid injection controller for diesel engine exhaust systems cannot initialize communication with each other when the start switch is turned ON for the first time. and cannot initialize.

3713 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Relay for the heater of the fluid line for diesel exhaust systems - the reaction of the mechanical system is not correct or the regulation is out of order. The ECM determines that a short to battery supply has been detected in the diesel exhaust fluid heater supply circuit.

3726 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Nitrogen oxide content sensor at the inlet of the exhaust gas purification system - accurate data, but above the norm - average level of severity. The ECM detects that the exhaust gas treatment fluid metering unit is not delivering the specified fluid metering.

3735 ISF (ISF 2.8, ISF 3.8), ISB, ISC, ISL, ISLe, ISDe, ISM, QSM, ISX, QSX Auxiliary regulator switch - Data update rate is not correct. The ECM has not received a valid message over the J1939 multiplexed network from a device connected to it for more than 1 second. The ECM has detected an open or short circuit in the J1939 network wiring harness.

3736 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX An unexpected communication state has occurred in the communication channel between the ECM and the fluid controller in the exhaust gas cleaning system of diesel engines. The ECM has sent an unexpected message to the Diesel Exhaust Fluid Injection Controller that could not be recognized.

3749 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The signal of the nitrogen oxide content sensor at the outlet of the exhaust gas purification system remains constant when the engine operating conditions change. The ECM has determined that the NOx sensor reading does not change when the engine operating conditions change.

3866 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The quality of the exhaust gas cleaning fluid is accurate, but below the norm is the highest level of severity. The ECM has determined that the quality of the exhaust gas cleaning fluid is below a critical threshold.

3867 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The quality of the fluid for cleaning the exhaust gases is accurate, but below the norm - the average level of severity. The ECM has determined that the quality of the exhaust gas cleaning fluid is below a critical threshold.

3868 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The quality of the fluid for cleaning the exhaust gases - the data update rate is not correct. The ECM has determined that the quality of the exhaust gas cleaning fluid is an abnormal mechanical response or a misalignment.

3876 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The fluid quality sensor for cleaning the exhaust gases does not recognize the presence of fluid. The ECM has determined that the quality of the exhaust gas cleaning fluid is an abnormal mechanical response or a misalignment.

3877 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The fluid quality sensor for cleaning the exhaust gases detects an internal error. The ECM has determined that the exhaust gas cleaning fluid quality sensor is defective.

3878 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The fluid quality sensor for cleaning the exhaust gases detects overheating. The ECM has detected that the scrubber fluid quality sensor has overheated.

3879 ISF (ISF 2.8, ISF 3.8), ISB, ISC ISL, ISLe, ISDe, ISM, QSM, ISX, QSX The quality of the fluid for cleaning the exhaust gases - the data is accurate, but above the norm. An exhaust gas cleaning fluid quality sensor detects that the fluid concentration has increased above a critical threshold.

Cummins is investing more than a quarter of a million dollars in the development and implementation of innovative technologies. The company also develops its own scientific base, a system of service and maintenance, and from year to year it increases the volume and range of diesel power plants and diesel engines produced.

Cummins is one of the few manufacturers that provide a full cycle of manufacturing and assembly of power plants directly at their facilities, which allows them to achieve high quality equipment, certified in accordance with all international and European standards in this area.

Cummins Inc. creates:

- automobile diesel engines (135-420 horsepower);

- automobile gas engines (150-250 horsepower);

- diesel engines for industrial use (31-3500 horsepower);

- marine diesel engines (76-2,300 horsepower);

- diesel generators (8-2400 kW);

- marine diesel generators (5-1230 kW);

- gas piston generators (315-1750 kW);

- various filters and components for piston engines.

Currently, under the Cummins trademark, power plants are produced in a fairly wide range of models with a capacity from 8 kW to 3 MW in all major classes: domestic, semi-industrial and industrial, which allows consumers to always choose the most optimal option.

Error codes are displayed on the instrument panel while the machine is moving. They are displayed either by flashing indicator lights, or, on more modern machines, on a digital display.

Indicator colors and names may vary depending on the manufacturer, but most often they are yellow, red and green and mean warning, stop, service.

The yellow warning light (WARNING) indicates that the fault must be repaired as soon as possible.

The red color (STOP) should be taken as a brake light. It indicates the need to turn off the engine as soon as possible and leave it off until the fault is rectified.

The MAINTENANCE light does not indicate an error, it simply indicates some technical aspects: water in the fuel filter, low coolant level, high coolant temperature, high air temperature or high oil temperature.

Turn the diagnostic switch to the OFF position and the diagnostic switch to the ON position to check for EFT and Engine Guardian DTCs. Turn the vehicle key to the ON position. If there are no active DTCs stored, then the yellow and red indicators will not appear. If there are active fault codes recorded, then flashing lights appear immediately. The digits of the fault codes flash in the following sequence: first, the warning light (yellow) flashes, highlighting the digit of the fault code. There is a short, 1- or 2-second pause, then the “Stop” signal (red) starts flashing. After a new pause, the warning light returns again. Thus, the signal change and the digital display of error codes are repeated.

To see the next fault code, move the switch to the "+" position. To return to the previous fault code, move the switch to the “-” position.

When you are finished with the diagnostic system, return the diagnostic switch to the off position

111 Defective engine ECM - critical internal error

115 Error camshaft position sensor

121 Crankshaft position sensor error

122 Turbine pressure sensor error

123 Turbine pressure sensor error

125 Reduced turbine pressure

131 Error throttle gas pedal

132 Error throttle gas pedal

135 Oil pressure sensor error

141 Oil pressure sensor error

143 Oil pressure too low

144 Coolant temperature sensor error

145 Coolant temperature sensor error

146 The coolant temperature is increased

151 Critically increased coolant temperature

153 Intake manifold temperature sensor error

154 Intake manifold temperature sensor error

155 The temperature in the intake manifold is increased

187 Short circuit of the power supply of the engine sensors to ground

195 Coolant temperature sensor error

196 Coolant level sensor error

197 Lowered coolant level

212 Oil temperature sensor error

213 Oil temperature sensor error

214 Oil temperature increased

221 Atmospheric pressure sensor error

222 Atmospheric pressure sensor error

227 Short circuit of the power supply of the engine sensors to positive

234 Maximum engine speed exceeded

238 Short circuit of the power supply of the engine sensors to ground

241 Speed sensor signal error

242 Speed sensor signal error

245 Fan clutch solenoid error

249 Atmospheric temperature sensor error

254 Fuel solenoid valve error

255 Error solenoid fuel valve

256 Atmospheric temperature sensor error

257 Mechanical failure of the solenoid fuel valve

263 Fuel temperature sensor error

265 Fuel temperature sensor error

285 J1939 data line error

286 J1939 data line error

287 Error in the operation of the gas pedal

288 J1939 data line error, communication with gearbox is broken

295 Atmospheric pressure sensor error

311 Error in the electrical circuit of the injector of the first cylinder

312 Error in the electrical circuit of the fifth cylinder injector

313 Third cylinder injector electrical circuit error

314 Error in the electrical circuit of the sixth cylinder injector

315 Error in the electrical circuit of the injector of the second cylinder

319 Internal clock power supply problems

321 Error in the electrical circuit of the injector of the first cylinder

322 Error in the electrical circuit of the injector of the first cylinder

323 Error in the electrical circuit of the injector of the first cylinder

324 Error in the electrical circuit of the injector of the first cylinder

325 Error in the electrical circuit of the injector of the first cylinder

331 Error in the electrical circuit of the injector of the first cylinder

332 Error in the electrical circuit of the injector of the first cylinder

343 Engine ECU error

351 Engine ECU error

352 Pressure sensor power supply circuit error

386 Pressure sensor supply circuit error

415 Oil pressure lowered

418 The presence of water in the fuel system

427 Line error 1939, communication is broken

428 Fuel system water sensor circuit error

429 Water sensor circuit error in the fuel system

435 Engine oil pressure sensor error

441 The battery voltage does not reach the norm

442 The battery voltage does not reach the norm

546 Fuel pressure sensor error

547 Fuel pressure sensor error

555 Increased crankcase pressure

556 Crankcase pressure is critically increased

584 Starter relay circuit error

585 Starter relay circuit error

596 The battery charging voltage is increased

597 Battery charging voltage too low

598 Battery charging voltage is critically low

649 Oil change required

686 Turbine speed sensor error

687 Turbine speed lowered

689 Crankshaft Position Sensor - Data Irregular

697 Internal temperature sensor error in the ECM

698 Internal temperature sensor error in the ECM

731 There is no synchronization between the crankshaft and the camshaft

778 Crankshaft Position Sensor Error

784 Cruise control error

1117 No power when the ignition is turned on

1239 Faulty gas pedal

1241 Faulty gas pedal

1242 Faulty gas pedal

1665 Exhaust gas aftertreatment temperature sensor error

1666 Exhaust gas aftertreatment temperature sensor error

1667 Exhaust gas aftertreatment temperature sensor error

1895 Recirculation valve sensor error

1896 Recirculation valve sensor calibration required

1935 Exhaust Gas Recirculation Error, Cause Not Known

1943 Critically lowered atmospheric pressure

1961 Exhaust Gas Recirculation Temperature Increased

1962 Increased turbine control temperature

1968 High temperature of the second aftertreatment of the exhaust gases

1969 Critically high temperature of the second aftertreatment of the exhaust gases

1972 High temperature of the third exhaust gas aftertreatment

1973 Critically high temperature of the third exhaust gas aftertreatment

1974 High crankcase pressure

2182 Defective mountain brake first circuit

2183 Mountain brake error first circuit

2195 Input 3, auxiliary equipment error

2198 Faulty turbine control

2215 Reduced pressure at the inlet of the fuel pump

2216 Increased pressure at the inlet of the fuel pump

2273 Gas recirculation differential pressure sensor error

2274 Gas recirculation differential pressure sensor error

2288 Increased turbine speed

2313 Error circuit 2 solenoid fuel regulator

2314 Motor timing circuit error

2321 Engine timing circuit error

2322 Crankshaft position sensor signal error

2345 The degree of change in the speed of the turbine does not meet the standards

2346 Increased air temperature at the inlet to the turbine

2347 Increased air temperature at the outlet of the turbine

2349 Gas recirculation valve error

2351 Gas recirculation valve control error

2357 Violation of calibration of the gas recirculation mechanism

2359 The differential pressure of the recirculation of gases exceeds the norm

2363 Defective motor brake of the second circuit

2365 The brake of the third circuit motor is faulty

2367 Defective motor brake of the second circuit

2368 The brake of the third circuit motor is faulty

2372 Increased pressure in the fuel filter

2373 Exhaust gas pressure sensor error

2374 Exhaust Gas Pressure Sensor Error

2375 Gas recirculation temperature sensor error

2376 Gas recirculation temperature sensor error

2377 Fan control circuit error

2387 Turbine control error

2412 Fan speed sensor error

2449 Turbine sensor needs to be calibrated

2451 High temperature at the turbine inlet

2551 Rear fuel activator error

2552 Front Fuel Activator Error

2554 ERROR EXHAUST GAS PRESSURE SENSOR

2636 Turbine control error

2738 Air Launcher Error

2739 Air Launcher Error

2743 Low temperature aftertreatment of exhaust gases

2754 High pressure at the inlet of the particulate engine

2764 High exhaust pressure

2789 Low coolant temperature

2813 Exhaust Gas Recirculation Valve Error

2961 Exhaust gas recirculation temperature too low

2962 Low exhaust gas recirculation temperature

2963 Low coolant temperature