Iveco Trakker Euro 4/5 Fault Diagnosis. Repair Manuals
DIAGNOSIS
Fault diagnosis comprises two sections:
- The first one, organized by error codes (DTC-FMI), concerns faults that may be identified by the EDC control unit directly . These faults are mainly of an electric - electronic - pneumatic nature.
- The second one, organized by symptoms, describes the possible faults the electronic control unit cannot identify directly. These faults are mainly of a mechanical - pneumatic nature.
Diagnosis Instruments
MODUS (Maintenance and Diagnostic System)
A computerized fault-diagnosis station dedicated to diagnosing the brake systems, air suspensions, engines and systems controlled electronically.
The station is equipped with auxiliary functions, such as: programming electronic control units, consulting the spare parts catalogue and service time schedules.
The vehicle has a 30-pin diagnosis socket to interface with the instrument
IT 2000 (IVECO Electronic Tester)
This makes it possible to take immediate action on the vehicle, identifying it with the chassis number.
It saves the results of diagnostics actions performed.
It can be used as a portable Personal Computer, too, being fit ted for remote diagnosis.
By using MODUS as the mother station it is possible to update and configure the IT 2000.
IT 2000 interfaces with the vehicle via a 30-pin diagnosis socket.
E.A.SY.
E.A.SY. system allows to simply make the diagnosis and programming of the various electronic central units aboard the vehicle.
E.A.SY. system is made up of ECI module communicating with the electronic central units and of a Panasonic PC.
ECI module, exploiting the Panasonic PC, also allows easy on the road interventions: in particular, thanks to Panasonic PC wireless technologies (e.g. GPRS), diagnostic interventions can be assisted by a remote expert center
Diagnosis information on the cluster is split into 4 columns:
- First column = central unit.
- Second column = central unit address plus fault order number.
- Third column = failure type.
- Fourth column = failure frequency.
The screen shows three error messages at most, but can store up to eight error messages. For displaying any further messages, just operate 'Y' and 'B' keys
|
DTC |
Failing component |
Visible failure |
Possible Cause |
Repair action |
|
113 |
ACCELERATOR PEDAL/ BRAKE PEDAL SUSPECT |
Vehicle acceleration very slow. Engine idle speed: 500 rpm. |
Accelerator pedal and brake pressed simultaneously (for too long); Accelerator pedal blocked or faulty; Incorrect use of vehicle. |
Check the accelerator pedal signal and pedal mechanical movement. |
|
116 |
CLUTCH SIGNAL SUSPECT |
The parameter reading shows that the clutch is pressed. |
Clutch switch faulty or wiring problems in pedal. |
Check clutch pedal switch and wiring. |
|
117 |
BRAKE PEDAL SIGNAL ERROR |
Slight power reduction |
Main and secondary brake switch not synchronised. One of the two brake pedal switches may be stuck. |
Check the synchronisation of both switches (signal) and wiring. |
|
119 |
PLAUSIBILITY +15 |
|
Possible mechanical problem (in pawl) or electrical problem. |
Check wiring. |
|
121 |
SPEED LIMITER W/ LIGHT |
Warning light permanently off. |
Short circuit or defective wiring |
Check wiring. |
|
122 |
WARNING LIGHT EOBD |
Warning light permanently off. |
Short circuit or defective wiring |
Check wiring. |
|
123 |
EDC LAMP |
Warning light permanently off. |
Short circuit or defective wiring. |
Check wiring. |
|
124 |
COLD START LAMP |
Warning light permanently off. |
Short circuit or defective wiring. |
Check wiring. |
|
125 |
MAIN RELAY DEFECT |
Possible problems during after-run. |
Relay short circuit to battery positive or ground. |
Check wiring between ECM and battery. Replace relay if necessary.
|
|
126 |
BATTERY VOLTAGE |
Possible problems during after-run. |
Alternator or battery defective. Possible wiring problem. |
Check wiring. Replace alternator regulator or battery Replace the alternator if necessary |
|
127 |
ENGINE BRAKE ELECTROVALVE |
Engine brake not operational. |
Relay or wiring short-circuited or interrupted. |
Check wiring. Replace relay if necessary |
|
128 |
MAIN RELAY - SHORT CIRCUIT TO BATTERY |
Possible problems during after-run |
Relay short circuit to battery positive or ground. Relay may be faulty.
|
Check wiring between ECM and battery. Replace relay if necessary. |
|
129 |
AIRCONDITIONER COMPRESSOR RELAY |
Possible problems during after-run. |
Relay short circuit to battery positive or ground. Relay may be faulty. |
Check wiring between ECM and battery. Replace relay if necessary. |
|
12A |
RELAIS FOR ENGINE BRAKE VALVE |
Possible problems during after-run. |
Relay short circuit to battery positive or ground. Relay may be faulty. |
Check wiring between ECM and battery. Replace relay if necessary. |
|
12B |
THERMOSTARTER RELAY 1 (HEATER) |
Heater not working. |
Relay or wiring short-circuited or interrupted. |
Check wiring. Replace relay if necessary. |
|
12C |
THERMOSTARTER RELAY 2 |
Heater not working. |
Relay or wiring short-circuited or interrupted |
Check wiring. Replace relay if necessary |
|
12E |
MANAGEMENT SYSTEM PRE/ POSTHEATING (ACTIVE) |
Grid heater permanently operating |
Grid heater short circuited to ground. |
Check wiring and component. |
|
131 |
COOLANT TEMPERATURE SENSOR |
No reaction noticeable on behalf of the driver.
|
Sensor short-circuited or value implausible |
Check the wiring. Replace sensor if necessary.
|
|
132 |
COOLANT TEMPERATURE SENSOR (TEST) |
Slight power reduction. |
Operation in extreme environmental conditions or sensor inaccurate. |
Ensure the engine is not working in extreme environmental conditions. Check the wiring and the sensor accuracy. Replace sensor if necessary.
|
|
133 |
AIR TEMPERATURE SENSOR BOOST AIR |
Slight power reduction. |
Sensor short-circuited or value implausible. |
Check the wiring. Replace sensor if necessary. |
|
134 |
BOOST PRESSURE SENSOR |
No reaction perceivable by the driver. Parameter recovery value: 2700 mbar. |
Sensor short-circuited or difference between environmental pressure and turbo pressure implausible. |
Check the wiring. Also check the environmental pressure sensor. Replace sensor if necessary.
|
|
135 |
FUEL TEMPERATURE SENSOR |
Slight power reduction. |
Sensor short-circuited or value implausible. |
Check the wiring. Replace sensor if necessary |
|
138 |
OIL PRESSURE SENSOR |
No reaction perceivable by the driver. Parameter recovery value: 3000 mbar. |
Sensor short-circuited or value implausible. |
Check the wiring and oil level. Replace sensor if necessary. |
|
13A |
OIL TEMPERATURE SENSOR |
No reaction perceivable by the driver. Parameter recovery value: coolant temperature value (if intact) otherwise 120 C). |
Sensor short-circuited or value implausible. |
Check the wiring. Replace sensor if necessary. |
|
13C |
ATMOSPHERIC TEMPERATURE SENSOR(HUMIDTIY?) |
No reaction perceivable by the driver. Parameter recovery value: 40 C. |
Sensor short-circuited or value implausible.
|
Check the wiring. Replace sensor if necessary |
|
DTC |
Failing component |
Visible failure |
Possible Cause |
Repair action |
|
141 |
CRANKSHAFT SPEED |
No reaction noticeable on behalf of the driver |
Signal interrupted or wiring problem. Sensor installation may not be correct. |
Check wiring and installation. Replace sensor if necessary |
|
142 |
ENGINE WORKING ONLY WITH CAMSHAFT SENSOR |
No reaction perceivable by the driver |
Signal interrupted or wiring problem. Sensor installation may not be correct. |
Check wiring and installation. Replace sensor if necessary |
|
143 |
CAMSHAFT SENSOR |
No reaction perceivable by the driver. |
Signal interrupted or wiring problem. Sensor installation may not be correct. |
Check wiring and installation. Replace sensor if necessary |
|
144 |
FAULT BETWEEN FLYWHEEL SENSOR AND CAMSHAFT |
No reaction noticeable on behalf of the driver.
|
Signal interrupted or wiring problem. Flywheel and timing sensor installation may be incorrect. |
Check wiring and installation of both sensors. |
|
145 |
FAN RELAY |
No reaction perceivable by the driver. Fan off. |
Short circuit or fan actuator faulty. |
Check the wiring and the fan actuator. Replace the actuator if necessary. |
|
148 |
AIRCONDITIONER COMPRESSOR RELAY |
Air conditioner permanently off. |
Wiring or relay short-circuited. |
Check the wiring. Replace relay if necessary. |
|
149 |
PRE -HEAT - ING RELAY FUEL FILTER |
Filter heater not working. |
Wiring or filter heater short -circuited. |
Check the wiring. Re - place the filter heater if necessary. |
|
151 |
INJECTOR CYLINDER 1 |
The engine runs on 5 cylinders. |
Injector no.1 electric trouble. |
Check correct tightness to torque of the connectors on the solenoid valve of the injector (1.36 - 1.92 Nm). Check the integrity of the injector coil and replace the injector if defective. If the coil is integral, check the wiring between the solenoid valve and EDC connector. |
|
152 |
INJECTOR CYLINDER 2 |
The engine runs on 5 cylinders. |
Injector no.2 electric trouble. |
Check correct tightness to torque of the connectors on the solenoid valve of the injector (1.36 - 1.92 Nm).Check the integrity of the injector coil and replace the injector if defective. If the coil is integral, check the wiring be - tween the solenoid valve and EDC connector. |
|
153 |
INJECTOR CYLINDER 3 |
The engine runs on 5 cylinders. |
Injector no.3 electric trouble |
Check correct tightness to torque of the connectors on the solenoid valve of the injector (1.36 - 1.92 Nm). Check the integrity of the injector coil and replace the injector if defective. If the coil is integral, check the wiring between the solenoid valve and EDC connector. |
|
154 |
INJECTOR CYLINDER 4 |
The engine runs on 5 cylinders |
Injector no.4 electric trouble |
Check correct tightness to torque of the connectors on the solenoid valve of the injector (1.36 - 1.92 Nm).Check the integrity of the injector coil and replace the injector if defective. If the coil is integral, check the wiring between the solenoid valve and EDC connector. |
|
155 |
INJECTOR CYLINDER 5 |
The engine runs on 5 cylinders |
Injector no.5 electric trouble |
Check correct tightness to torque of the connectors on the solenoid valve of the injector (1.36 - 1.92 Nm).Check the integrity of the injector coil and replace the injector if defective. If the coil is integral, check the wiring between the solenoid valve and EDC connector. |
|
156 |
INJECTOR CYLINDER 6 |
The engine runs on 5 cylinders |
Injector no.6 electric trouble |
Check correct tightness to torque of the connectors on the solenoid valve of the injector (1.36 - 1.92 Nm).Check the integrity of the injector coil and replace the injector if defective. If the coil is integral, check the wiring between the solenoid valve and EDC connector. |
|
161 |
INJECTOR CYLINDER 1 / SHORT CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible short circuit in connections. Possible problem in injector coil . Possible problem in control unit. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
162 |
INJECTOR CYLINDER 2 / SHORT CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible short circuit in connections. Possible problem in injector coil . Possible problem in control unit. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
163 |
INJECTOR CYLINDER 3 / SHORT CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible short circuit in connections. Possible problem in injector coil . Possible problem in control unit. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
164 |
INJECTOR CYLINDER 4 / SHORT CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible short circuit in connections. Possible problem in injector coil . Possible problem in control unit. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
165 |
INJECTOR CYLINDER 5 / SHORT CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible short circuit in connections. Possible problem in injector coil . Possible problem in control unit. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
166 |
INJECTOR CYLINDER 6 / SHORT CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible short circuit in connections. Possible problem in injector coil. Possible problem in control unit. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
167 |
INJECTOR CYLINDER 1 / OPEN CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem (or disconnected internally). Possible problem in control unit (capacitor). |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
168 |
INJECTOR CYLINDER 2 / OPEN CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem (or disconnected internally). Possible problem in control unit (capacitor). |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
169 |
INJECTOR CYLINDER 3 / OPEN CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem (or disconnected internally). Possible problem in control unit (capacitor). |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
16A |
INJECTOR CYLINDER 4 / OPEN CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem (or disconnected internally). Possible problem in control unit (capacitor). |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary |
|
16B |
INJECTOR CYLINDER 5 / OPEN CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem (or disconnected internally). Possible problem in control unit (capacitor). |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
16C |
INJECTOR CYLINDER 6 / OPEN CIRCUIT |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem (or disconnected internally). Possible problem in control unit (capacitor). |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
16D |
COMPRESSION TEST IN PROGRESS |
|
Compression Test in progress. |
After carrying out the compression test, turn the key OFF (after-run). |
|
16E |
THE MINIMUM NUMBER OF INJECTIONS WAS NOT REACHED: STOP THE ENGINE |
More than 2 injectors not operating |
|
See individual faults in injectors. |
|
171 |
BENCH 1 CC |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem. Injectors short circuited. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
173 |
BENCH 2 CC |
One or more injectors (bank 1 or bank 2) not operating. |
Possible injector connection problem. Injectors short circuited. |
Check wiring. Possible internal problem also in ECM. Replace the injector if necessary. |
|
17C |
BENCH 1 INJECTORS CHECK (INTERNAL ECU) |
One or more injectors (bank 1 or bank 2) may not be operating. |
Fault in control unit.
|
Replace the engine control unit.
|
|
189 |
EGR POWER ST. SHORT TO BATT. |
No fault perceived by the driver. EGR not working. |
Short circuit or EGR actuator faulty. |
Check wiring. Replace the EGR actuator if necessary. |
|
191 |
TURBINE ACTUATOR CONTROL ELECTROVALVE |
Poor performance |
VGT actuator or wiring defective |
Check VGT wiring and actuator. |
|
192 |
TURBINE ACTUATOR CONTROL ELECTROVALVE SHORT CIRCUIT TO POSITIVE |
Poor performance |
VGT actuator or wiring defective. |
Check VGT wiring and actuator. |
|
193 |
TURBINE WHEEL REVS SENSOR |
Poor performance |
Air filter blocked or turbine rpm sensor signal implausible. |
Check the air filter and check parameters linked with the turbine by performing a road test (parameter acquisition). |
|
198 |
FAULT ON AT LEAST TWO OF THE FOLLOWING SENSORS: TURBINE SPEED, BOOT PRESSURE AND EXHAUST GAS PRESSURE |
Poor performance |
Sensor signal implausible. Sensor may be faulty. |
Determine which turbine component caused the problem. |
|
199 |
TURBOCHARGER CONTROL BOOST PRESSURE FAILURE (PCR) |
Poor performance |
Turbo sensor or actuator may be faulty. Air filter may be blocked. |
Check turbine sensors and actuator (parameter acquisition). Check whether air filter is blocked. |
|
19A |
TURBINE SPEED EXCEEDING EVERY PERMITTED RANGE |
Poor performance
|
Turbo sensor or actuator may be faulty. Air filter may be blocked. |
Check turbine sensors and actuator (parameter acquisition). Check whether air filter is blocked. |
|
19B |
TURBINE IN OVERSPEED (THE FAULT IS NOT DISPLAYED IF IT IS CAUSED BY A LOW ATMOSPERIC PRESSURE) |
Poor performance |
Air filter blocked or turbine rpm sensor signal implausible. |
Check the air filter and check parameters linked with the turbine by performing a road test (parameter acquisition).
|
|
19F |
NOx SENSOR ERROR |
No effect perceived by the driver. |
Sensor signal implausible. Nox sensor may be faulty. |
Check the Nox sensor. |
|
1A5 |
TIMEOUT OF CAN MESSAGE DM1DCU |
No effect perceived by the driver |
Problems in the Denoxtronic (on the CAN line). |
Check wiring. Check and correct any faults in the Denoxtronic control unit |
|
1A6 |
TIMEOUT OF CAN MESSAGE SCR1 |
No effect perceived by the driver |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check Denoxtronic control unit wiring and operation. |
|
1AE |
HUMIDITY SENSOR |
No effect perceived by the driver |
Sensor short-circuited or faulty. |
Check wiring Replace sensor if necessary. |
|
1AF |
SERIOUS EOBD FAULT FROM DENOXTRONIC (EOBD FLASHING LIGHT) |
No effect perceived by the driver |
Problems in AdBlue dosing system. |
Check the faults in the Denoxtronic and consult the control unit troubleshooting guide.
|
|
1B1 |
ERROR ON CAN CONTROLLER A |
No effect perceived by the driver |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check terminal resistances. |
|
1B2 |
ERROR ON CAN CONTROLLER B |
No effect perceived by the driver |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check terminal resistances. |
|
1B3 |
ERROR ON CAN CONTROLLER C |
No effect perceived by the driver |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check terminal resistances. |
|
1B4 |
TIMEOUT CAN MESSAGE BC2EDC1 |
No effect perceived by the driver |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check BC wiring and operation. |
|
1B5 |
TIMEOUT CAN MESSAGE VM2EDC |
No effect perceived by the driver. |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check VCM wiring and operation. |
|
1B7 |
ERROR ON MESSAGES CAN IN TRANSMISSION |
No effect perceived by the driver. |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check ECM wiring and operation. |
|
1B9 |
ERROR ON THE EOBD LIGHT MANAGED BY THE CLUSTER) |
No effect perceived by the driver. |
MIL/Body Controller warning light defective. |
Consult the Body Controller troubleshooting guide and check the CAN line. |
|
1BA |
TIMEOUT CAN MESSAGE DASH DISPLAY |
No effect perceived by the driver. |
CAN messages from VCM inconsistent. |
Consult the VCM troubleshooting guide and check the CAN line. |
|
1BC |
TIMEOUT CAN MESSAGE AMBCOND |
No effect perceived by the driver. |
CAN messages from VCM inconsistent.
|
Consult the VCM troubleshooting guide and check the CAN line. |
|
1BD |
TIMEOUT CAN MESSAGE CCVS |
No effect perceived by the driver. |
CAN messages from VCM or BC inconsistent |
Consult the VCM/BC troubleshooting guide and check the CAN line. |
|
1C2 |
ERROR MESSAGE CAN ETC1 |
No effect perceived by the driver. |
CAN messages from ETC (gearbox) inconsistent. |
Check the ETC connection with the CAN line. |
|
1C3 |
TIMEOUT IN RECEIVING TC01 CAN MESSAGE |
No effect perceived by the driver. |
CAN messages from TCO inconsistent. |
Check the TCO connection with the CAN line.
|
|
1C6 |
ERROR MESSAGE CAN TSC1-PE |
No effect perceived by the driver. |
CAN messages from TCU (Transmission Control Unit) inconsistent. |
Check the TCU connection with the CAN line. |
|
1C8 |
ERROR MESSAGE CAN TSC1-VE |
No effect perceived by the driver. |
CAN messages from TCU (Transmission Control Unit) inconsistent. |
Check the TCU connection with the CAN line. |
|
1D1 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Electrical interference or internal control unit problems. |
If the error persists to replace ECU.
|
|
1D2 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Poor control unit programming/flash Possible internal fault. |
Reprogram the central unit. If the error is repeated, replace the central unit, if needed. |
|
1D3 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Poor control unit programming/flash Possible internal fault. |
Reprogram the central unit. If the error is repeated, replace the central unit, if needed. |
|
1D4 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Ecu internal failure. |
If the error persists to replace ECU. |
|
1D5 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver.
|
Ecu internal failure. |
If the error persists to replace ECU. |
|
1D6 |
ECU INTERNAL ERROR (TPU) |
Control unit deactivation. |
Electronic interference or control unit faulty. |
If the error persists to replace ECU. |
|
1D8 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Ecu internal failure. |
If the error persists to replace ECU. |
|
1E2 |
IMMOBILIZER |
The engine fails to start. |
Problem in CAN line or immobiliser control unit. |
Check the Immobiliser control unit is correctly connected. Enter the Immobiliser PIN code during the emergency procedure. |
|
1E3 |
ERROR FOR ECU INTERNAL MONITORING |
No effect perceived by the driver. |
Ecu internal failure. |
f the error persists to replace ECU. |
|
1E4 |
ERROR FOR ECU INTERNAL MONITORING |
No effect perceived by the driver.
|
Ecu internal failure. |
If the error persists to replace ECU. |
|
1E5 |
SENSORS POWER SUPPLY FAULT (12V) |
No effect perceived by the driver. |
Excessive/insufficient battery voltage or possible internal control unit problem. |
Check battery voltage or connections with the ECM. Replace the control unit if necessary. |
|
1E6 |
SENSOR POWER SUPPLY 1 |
No effect perceived by the driver. |
Excessive/insufficient battery voltage or possible internal control unit problem. |
Check battery voltage or connections with the ECM. Replace the control unit if necessary. |
|
1E7 |
SENSOR POWER SUPPLY 2 |
No effect perceived by the driver. |
Excessive/insufficient battery voltage or possible internal control unit problem. |
Check battery voltage or connections with the ECM. Check ECU, if required. |
|
1E8 |
SENSOR POWER SUPPLY 3 |
No effect perceived by the driver. |
Excessive/insufficient battery voltage or possible internal control unit problem. |
Check battery voltage or connections with the ECM. Replace the control unit if necessary |
|
1E9 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Excessive/insufficient battery voltage or possible internal control unit problem |
Check battery voltage or connections with the ECM. Replace the control unit if necessary. |
|
1EA |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Excessive/insufficient battery voltage or possible internal control unit problem. |
Check battery voltage or connections with the ECM. Replace the control unit if necessary. |
|
1EB |
ATMOSPHERIC PRESSURE SENSOR |
No effect perceived by the driver. Environmental pressure recovery value: 700 mbar. |
Fault in sensor inside control unit. |
Change ECU. |
|
1FA |
TOO HIGH NUMBER OF REGENERATIONS DEMAND |
No reaction perceivable by the driver. Too many filter regenerations carried out.
|
Particulate filter may be blocked. |
Check filter. |
|
1FB |
PERMANENT RIGENERATION ON TRAP PARTICLE |
No reaction perceivable by the driver |
Catalytic converter not installed or damaged. |
Check catalytic converter visually.
|
|
1FC |
FIRST SENSOR EXAUSTED GAS TEMPERATURE |
No reaction perceivable by the driver. |
Temperature sensors damaged or incorrectly fitted. |
Check information and condition of sensors. |
|
21F |
TOO HIGH EFFICIENCY OF CATALYST SYSTEM |
No reaction noticeable on behalf of the driver. |
Actuator coil faulty or not within specified tolerance limits. |
Check actuator condition. |
|
225 |
INTERRUPTED AFTERRUN |
Slight power reduction. |
The control unit is turned off by the general switch instead of by the key (k15). Possible problem in main relay or connections. |
Check wiring and then replace the main relay. |
|
228 |
MAIN RELAY - SHORT CIRCUIT TO GROUND |
Slight power reduction. |
Short circuit in main relay or relay faulty. |
Check wiring between battery and ECM and then replace the main relay |
|
DTC |
Failing component |
Visible failure |
Possible Cause |
Repair action |
|
232 |
COOLANT TEMPERATURE SENSOR ABSOLUTE TEST |
Slight power reduction |
Extreme environmental conditions or sensor incorrectly adjusted. |
Ensure the engine is working in non-critical conditions. Check the sensor connections and accuracy. Replace sensor if necessary. |
|
238 |
OIL LOW PRESSURE |
Slight power reduction |
Sensor incorrectly adjusted or faults in lubrication system. |
Check the sensor connections and accuracy. Check the lubrication system. |
|
23A |
OIL TEMPERATURE ABOVE NORMAL |
Slight power reduction |
Sensor incorrectly adjusted or faults in lubrication system. |
Check the sensor connections and accuracy. Check the lubrication system. |
|
27C |
BENCH 2 INJECTORS CHECK (INTERNAL ECU) |
One or more injectors (bank 1 or bank 2) may not be operating
|
Fault in control unit. |
Replace the engine control unit. |
|
292 |
TURBINE ACTUATOR CONTROL ELECTROVALVE SHORT CIRCUIT TO GROUND |
Poor performance |
VGT actuator or wiring defective |
Check VGT wiring and actuator. |
|
2A6 |
TIMEOUT OF CAN MESSAGE SCR2 |
No effect perceived by the driver |
Problem in the Denoxtronic (on the CAN line). |
Check the faults in the Denoxtronic and consult the control unit troubleshooting guide. Check wiring |
|
2AF |
SERIOUS EOBD FAULT FROM DENOXTRONIC (EOBD FLASHING LIGHT) |
No effect perceived by the driver. |
Problems in AdBlue dosing system. |
Check the faults in the Denoxtronic and consult the control unit troubleshooting guide.
|
|
2B4 |
TIMEOUT CAN MESSAGE BC2EDC2 |
No effect perceived by the driver. |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable |
Check CAN line wiring. Check BC wiring and operation. |
|
2C6 |
TIMEOUT OF CAN MESSAGE TSC1-PE PASSIVE |
No effect perceived by the driver. |
CAN messages from TCU (Transmission Control Unit) inconsistent. |
Check the TCU connection with the CAN line. |
|
2C8 |
ERROR MESSAGE CAN TSC1-VR |
No effect perceived by the driver. |
CAN messages from TCU (Transmission Control Unit) inconsistent. |
Check the TCU connection with the CAN line. |
|
2C9 |
ERROR MESSAGE CAN TIMEDATE |
No effect perceived by the driver. |
CAN messages from TC (tachograph) inconsistent. |
Check the tachograph connection with the CAN line. |
|
2D3 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Poor control unit programming/flash Possible internal fault. |
Reprogram the central unit. If the error is repeated, replace the central unit, if needed.
|
|
2FF |
ERROR CHECK OF CRITICAL TIME FOR OIL DILUTION |
Slight power reduction |
Oil over-diluted. |
Change the engine oil. |
|
392 |
TURBINE ACTUATOR CONTROL ELECTROVALVE |
Poor performance
|
Connection damaged. Battery voltage excessive (ECU overheating). |
Check VGT connection and actuator. |
|
3AF |
SERIOUS EOBD FAULT FROM DENOXTRONIC (EOBD FLASHING LIGHT) |
No effect perceived by the driver. |
Problems in AdBlue dosing system. |
Check the faults in the Denoxtronic and consult the control unit troubleshooting guide. |
|
3C8 |
TIMEOUT OF CAN MESSAGE TSC1-VE PASSIVE |
No effect perceived by the driver. |
CAN messages from TCU (Transmission Control Unit) inconsistent. |
Check the TCU connection with the CAN line. |
|
3C9 |
ERROR MESSAGE CAN HRDV |
No effect perceived by the driver. |
CAN configuration incorrect. CAN connections defective. Terminal resistance not suitable. |
Check CAN line wiring. Check BC wiring and operation.
|
|
3D3 |
ECU OVERRUN MONITORING ERROR |
No effect perceived by the driver. |
Poor control unit programming/flash Possible internal fault. |
Reprogram the central unit. If the error is repeated, replace the central unit, if needed.
|
|
3FA |
REGENERATION DEMAND NUMBER 2 |
No effect perceived by the driver. |
Too many regenerations carried out. |
Check particulate filter and faults in sensors. |
|
4AF |
SERIOUS EOBD FAULT FROM DENOXTRONIC (EOBD FLASHING LIGHT) |
No effect perceived by the driver.
|
Problems in AdBlue dosing system. |
Check the faults in the Denoxtronic and consult the control unit troubleshooting guide. |
|
4C8 |
TIMEOUT OF CAN MESSAGE TSC1-VR PASSIVE |
No effect perceived by the driver. |
CAN messages from TCU (Transmission Control Unit) inconsistent. |
Check the TCU connection with the CAN line. |
|
4FA |
REGENERATION DEMAND NUMBER 3 |
No effect perceived by the driver. |
Too many regenerations carried out. |
Check particulate filter and faults in sensors. |
|
5AF |
DM1DCU SPN5 MESSAGE |
No effect perceived by the driver. |
Problems in AdBlue dosing system. |
Check the faults in the Denoxtronic and consult the control unit troubleshooting guide. |
TROUBLE SHOOTING ACCORDING TO SYMPTOMS
|
Visible Failure |
Possible Cause |
Repair action |
|
Engine does not start |
Inefficient battery. |
Pre-heating resistor always on. Check alternator efficiency. Check electrical connections at the battery terminals. |
|
Starter inefficient. |
Check / replace. |
|
|
Air heater inefficient. |
Check power supply and ground connection. Check heater remote control switch with active diagnosis. |
|
|
Main remote control switch (main relay) inefficient. |
Check fuse efficiency. Check remote control switch with active diagnosis. |
|
|
Fuel pump inefficient. |
Check efficiency by checking the filter input pressure. Check suction tightness. |
|
|
Fuel pre-filter - filter inefficient. |
Check if clogged / change. |
|
|
0.3 bar valve on fuel return inefficient. |
Check its efficiency. If blocked, replace it. |
|
|
Fuel circuit inefficient. |
Check the system tightness and carry out bleeding. |
|
|
Engine overheating |
Coolant level wrong |
Check possible leaks and restore the level. |
|
Water pump and fan control belts inefficient. |
Check, adjust tension and change components, if needed. |
|
|
Water pump inefficient |
Overhaul or change the assembly. |
|
|
Thermostat inefficient. |
Check if it remains blocked in closed position or partially open. Change. |
|
|
Radiator inefficient. |
Wash accurately and check if there a re any fluid leaks. Change the component, if needed. |
|
|
Air filter and circuit pipes inefficient. |
Make sure the manifolds and the pipes are not clogged. Check the filter clogging indicator. Change the filter. |
|
|
Cylinder head gasket inefficient. |
Check the water circuit pressure an d change the cylinder head gaskets. |
|
|
Fan inefficient. |
Replace. |
|
|
|
|
|
|
Engine lacks power |
Fuel circuit inefficient. |
Check if the mesh filter in the tank , the fuel pre-filter and filter are clogged; in this case change them. Check if the 0,3 bar valve on the fuel return is blocked in open position (low pressure) or in closed position (high temperature), and then replace it. Check possible circuit leaks and the fuel pump efficiency. |
|
Injectors inefficient |
Seizure of the plunger of one of the injectors may occur or fuel may leak through the O - Ring. Carry out the Engine Test and proceed according to the instructions displayed. |
|
|
Engine air suction circuit inefficient. |
Remove circuit necks and replace the air filter if clogged. Check the cartridge clogging indicator |
|
|
Exhaust gas circuit inefficient. |
Eliminate exhaust manifold leaks |
|
|
Working temperature not correct. |
Check cooling system. |
|
|
VGT actuator inefficient. |
Carry out the Engine Test on the basis of the instructions displayed by the diagnosis instrument. |
|
|
Turbo-compressor inefficient. |
Carry out the Engine Test on the turbine and check integrity of the following turbo-compressor components: - rotating blades; - bearings; - modulating valve; - VGT filter clogged; - turbine actuator; Change faulty component. Engine Test with Modus IT2000 E.A.SY.. |
|
|
Injection mechanical system inefficient. |
Check wear of the injector rocker arms, the roller, the rocker arm bushes and the camshaft tappets. |
|
|
Valve clearance inefficient. |
Adjust valve clearance. |
|
Engine brake low efficiency |
Head gasket inefficient. |
Head grinding and change gasket. |
|
Injector holder inefficient |
Replace it. |
|
|
Turbo-compressor cooling system tightness inefficient. |
Overhaul turbine. |
|
|
Bad fuel quality. |
Check if there is water in the reservoir and remove it. |
|
|
Engine smoke is light blue |
Piston rings inefficient |
Overhaul piston-cylinder assembly |
|
Turbo-compressor lubrication system tightness inefficient. |
Overhaul turbine. |
|
|
Valve oil seal tightness inefficient. |
Change valve guide gasket. |
|
|
Engine brake low efficiency |
Engine brake components inefficient. |
Check correct operation of engine brake actuator cylinders of control solenoid valve. Check cylinder control oil pipe tightness. Check exhaust valve clearance. |
|
Turbo-compressor inefficient. |
VGT blocked in open position. VGT actuator faulty (tie rod blow-by). Modulating valve faulty. Wrong air supply to modulating valve. Change inefficient components. |
|
|
Engine stops |
Fuel in the reservoir. |
Carry out bleeding after refueling. |
|
Inefficiency of mesh filter, fuel pre-filter and filter. |
Clean the mesh filter and replace the pre-filter and filter. |
|
|
Reservoir pipes not correctly connected. |
If the pipes are inverted, the vehicle can be turned off after 200 300 km even if the reservoir is without fuel because the engine fuel pipe has a lower height of suction. Invert the pipes. |
|
Excessive or insufficient oil pressure |
Overpressure valve works not correctly |
Check and replace, if needed. |
|
Oil pump and oil delivery pipes inefficient. |
Check and replace, if needed |
|
|
Main journals and connecting rod bearings inefficient |
Replace bearings and rectify the crankshaft, if needed. |
|
|
Engine oil SAE viscosity not correct |
Change the engine oil with one having the right viscosity |
|
|
Excessive fuel consumption |
Air filter inefficient. |
Change. |
|
Fuel reservoir and pipes inefficient. |
Eliminate possible leaks and replace worn out components. |