Cummins Service Repair Manuals. Fault Codes List

Cummins ISX Engine Fault Codes

Cummins Download PDF Fault Codes

Cummins Fault Codes list for QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30, QSK45, QSK60, QSK78 engines Download

Cummins Engine EGR Fault Codes Download

Popular CUMMINS engine models

The Cummins engine suite currently in production includes the most advanced in-line and V-type water-cooled diesel engines. Customers can choose from naturally aspirated engines or, in many cases, several types of turbocharged engines. Most of the engines produced are equipped with an optional air-to-air or water-to-water cooling system. The company has over 50 years of experience in the field of fuel injection technology and fuel delivery systems. Engines on all models are designed to provide optimum performance across the entire power range. Specific motor data is provided in the power table to help you select the motor for your needs.

New Cummins X12 and X15 Engines

The well-known manufacturer of engines for commercial vehicles and construction equipment Cummins has introduced a new line of Cummins X12 and X15 engines. The new models have shown higher efficiency and productivity compared to previous models. The name of the model has also changed: “IS” disappeared, leaving only the prefix “X” and the number of liters (12 or 15).

The X15 line will come in two versions. The more economical X15 Efficiency from 400 to 500 hp. designed for maximum fuel economy. Ranging from 485 to 605 h.p, the X15 Performance is perfect where extra torque and more power are required.

Research conducted at the X15 R&D Center in Ohio found that engine braking capabilities and throttle response were significantly better than its predecessor, the ISX15. Cummins engineers have optimized calibration software and air management systems for greater thermal efficiency. This increases productivity and reduces fuel consumption.

Vice President of Engineering Jim Fier said at the presentation that the company tried to use thermal energy as efficiently as possible. He explained that different valve timings have been set, different injection methods have been applied, which will save about 3% on fuel consumption compared to the ISX15 and more than 20% from the 2012 ISX15. In addition, the distance between maintenance has increased, for example, after an oil change, you can drive 50,000 miles, and a diesel particulate filter will need to be changed after 80,000 miles.

Cummins X12 and X15 Engine Calibration Innovations

An important advance is that you no longer need to go to the dealership to update the software or calibrate the X15 and X12 engines. All this will be done using the telematics platform. The person will be able to send the update to the truck from their computer and the driver will be prompted to approve and complete the calibration update. For safety, it will always be possible to make a backup if there are problems with the update.

Importantly, the new Cummins engines will exceed the efficiency commitments under the EPA / NHTSA phase of greenhouse gas emissions reduction regulations.

The new X15s are expected to go on sale in January 2017 and the company expects to produce around 1,400 of these engines in pre-production, roughly three times the volume for this phase. The x12 is due to hit the market in 2018.

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