COMMON RAIL system diagnostics
If a fault occurs during the operation of the bus (the COMMON RAIL system diagnostic lamp illuminating or flashing), it is necessary to carry out diagnostics of the COMMON RAIL system using the diagnostic lamp and the diagnostic button and to rectify the faults detected.
Flashing of the diagnostic lamp indicates a more serious fault than intermittent illumination.
To carry out diagnostics, press the diagnostic button and hold it for more than 2 seconds.
After releasing the button, the diagnostic lamp will "flash" a three-digit blink code of the engine fault in the form of flashes.
This will appear as follows:
- after releasing the diagnostic button — a pause, after the pause a series of flashes (for example, two — we note the digit 2);
- a pause, after the pause a series of flashes (for example, four — we note the digit 4);
- a pause, after the pause a series of flashes (for example, three — we note the digit 3);
- as a result we have the blink code of the fault "243" (oil pressure sensor).
On the next press of the diagnostic button, the diagnostic lamp will "flash" the blink code of the next fault.
In this way, all faults recorded by the electronic control unit are output. After the last recorded fault has been output, the unit begins to output the first fault again.
See the decoding of the blink codes of faults in the table below.
Rectify the fault in the manner indicated in the table and delete the record of the fault in the memory of the control unit as follows:
- switch off the ignition and maintain a pause for one minute;
- press the diagnostic button and, while holding it, switch on the ignition;
- hold the diagnostic button pressed for 5…7 seconds after switching on the ignition.
To make sure that the fault has been rectified, carry out a test drive.
During this drive, the self-diagnostics check the system and again record in the memory information about a fault that may still persist.
After the test drive, carry out a repeat diagnostic reading of the blink codes of faults from the memory of the control unit.
Now the fault memory should be cleared, which means the successful completion of the repair.
If not all the faults displayed by the control unit diagnostic system have been rectified, you must proceed to the diagnostic post even if the fault that has occurred does not significantly affect the operation of the diesel engine, since the fault present may fundamentally affect the deterioration of the engine's environmental performance.
Table of blink codes for diagnostics of the D-245.7E3 / D-245.9E3 engine
Note. Regarding the recognition of faults whose codes have been detected by the illumination of the diagnostic lamp, or were in the memory of the electronic control unit and whose codes have been detected by full system diagnostics, but are not reflected in the table below, it is necessary to contact a specialised service centre.
| Blink code | P code | Fault type | Fault description | Method and procedure for rectifying the fault |
|---|---|---|---|---|
| Faults displayed by illumination of the diagnostic lamp | ||||
| 1-1-1 | P060B | Error recorded by the analogue-to-digital converter monitoring function | Reference voltage of the analogue-to-digital converter above the specified limit | |
| P060B | Reference voltage of the analogue-to-digital converter below the specified limit | |||
| P060B | Test pulse voltage outside the permissible limits | |||
| P060B | Error in queue processing by the analogue-to-digital converter | |||
| 2-2-1 | P0123 | Fault of accelerator pedal position sensor 1 | Voltage above the specified maximum limit | Check the condition and connection of the accelerator pedal position sensors. |
| P0122 | Voltage below the specified minimum limit | |||
| P2135 | Plausibility with accelerator pedal position sensor 2 violated | |||
| 2-2-1 | P0223 | Fault of accelerator pedal position sensor 2 | Voltage above the specified maximum limit | Check the condition and connection of the accelerator pedal position sensors. |
| P0222 | Voltage below the specified minimum limit | |||
| P2135 | Plausibility with accelerator pedal position sensor 1 violated | |||
| 2-3-2 | P2229 | Fault in the circuit of the atmospheric pressure sensor (integrated sensor of the control unit) | Voltage above the specified maximum limit | Check the condition and connection of the sensor. |
| P2228 | Voltage below the specified minimum limit | |||
| P0000 | Implausible signal value via CAN | |||
| P2227 | Plausibility with the boost pressure sensor violated | |||
| 2-3-1 | P0238 | Fault in the circuit of the boost pressure sensor | Voltage above the specified maximum limit | Check the condition and connection of the boost pressure sensor. |
| P0237 | Voltage below the specified minimum limit | |||
| P0235 | Implausible signal value via CAN | |||
| P0236 | Implausible signal | |||
| 2-2-3 | P0571 | Fault in the circuit of the brake pedal sensor | Defective signal of the brake pedal sensor | Check the condition and connection of the brake pedal position sensor. |
| P0504 | Implausible signal of the brake pedal sensor | |||
| 3-2-5 | P0050 | Fault in the circuit of the power stage of the engine brake decompression throttle | Short circuit to the supply battery | Check the condition and connection of the engine brake decompression throttle. |
| P004F | Short circuit to earth | |||
| P0661 | No load resistance | |||
| P0662 | Excess heating temperature | |||
| 2-4-1 | P0118 | Fault in the circuit of the coolant temperature sensor | Voltage above the specified maximum limit | Check the condition and connection of the coolant temperature sensor. |
| P0117 | Voltage below the specified minimum limit | |||
| P0115 | Defective signal via CAN | |||
| P0116 | Implausibility between the readings of the oil temperature and coolant temperature sensors | |||
| 2-2-2 | P0704 | Error recorded by the clutch state signal diagnostic function | Defective clutch state signal via CAN | Check the condition and connection of the clutch pedal position sensor. Check the connection of the CAN line to other CAN devices. |
| P0704 | Unreliable clutch sensor signal | |||
| 1-1-3 | P0340 | Fault in the circuit of the camshaft speed sensor | No camshaft speed sensor signal | Check the condition and connection of the camshaft speed sensor. |
| P0341 | Incorrect camshaft speed sensor signal | |||
| 1-1-2 | P0335 | Fault in the circuit of the crankshaft speed sensor | No crankshaft speed sensor signal | Check the condition and connection of the crankshaft speed sensor. |
| P0336 | Incorrect crankshaft speed sensor signal | |||
| 1-1-4 | P0016 | Disagreement between the signals of the crankshaft and camshaft speed sensors | Disagreement between the signals of the crankshaft and camshaft speed sensors | Check the condition and connection of the camshaft and crankshaft speed sensors. |
| 3-1-1 | P0478 | Short circuit to battery in the circuit of the power stage of the exhaust throttle control | Short circuit to the supply battery | Check the condition and connection of the exhaust throttle. |
| P0477 | Short circuit to earth | |||
| P0476 | Open circuit or inadmissible temperature | |||
| 2-1-3 | P1015 | Fault in the circuit of the fine fuel filter clogging sensor | Voltage above the specified maximum limit | Check the condition and connection of the fine fuel filter clogging sensor. |
| P1016 | Voltage below the specified minimum limit | |||
| P1017 | Implausible signal of the fine fuel filter clogging sensor | |||
| 2-1-2 | P1018 | Clogging of the fine fuel filter | Clogging of the fine fuel filter | Replace the fine fuel filter. |
| 4-3-4 | U0158 | DashDspl CAN message error | Timeout for the DashDsp! CAN message | Check the connection of the CAN line to other CAN devices. |
| 4-4-1 | P0000 | EBC1 CAN message error | Timeout for the EBC1 CAN message | Check the connection of the line to other CAN devices. |
| 4-4-2 | U1100 | ERC1DR CAN message error | Timeout for the ERC1DR CAN message | Check the connection of the line to other CAN devices. |
| 4-4-3 | U0103 | ETC1 CAN message error | Timeout for the ETC1 CAN message | Check the connection of the line to other CAN devices. |
| 4-4-5 | U0104 | RxCCVS CAN message error | The CAN error extinguishing function is inactive and timeout for the RxCCVS CAN message | Check the connection of the line to other CAN devices. |
| 4-4-6 | U0157 | TC01 CAN message error | Timeout for the TC01 CAN message | Check the connection of the line to other CAN devices. |
| 4-2-1 | U1104 | TSC1-AE CAN message error | Timeout for the TSC1-AE CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U1105 | Timeout for the TSC1-AE CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-1 | U1106 | TSC1-AR CAN message error | Timeout for the TSC1-AR CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U1107 | Timeout for the TSC1-AR CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-2 | U1108 | TSC1-DE CAN message error | Timeout for the TSC1-DE CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U1109 | Timeout for the TSC1-DE CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-2 | U110A | TSC1-DR CAN message error | Timeout for the TSC1-DR CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U110B | Timeout for the TSC1-DR CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-3 | U110C | TSC1-PE CAN message error | Timeout for the TSC1-PE CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U110D | Timeout for the TSC1-PE CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-4 | U110E | TSC1-TE CAN message error | Timeout for the TSC1-TE CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U110F | Timeout for the TSC1-TE CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-4 | U113A | TSC1-TR CAN message error | Timeout for the TSC1-TR CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U113B | Timeout for the TSC1-TR CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-5 | U1110 | TSC1-VE CAN message error | Timeout for the TSC1-VE CAN message if the engine torque/speed correction mode is active | Check the connection of the line to other CAN devices. |
| U1111 | Timeout for the TSC1-VE CAN message if the engine torque/speed correction mode is not active | |||
| 4-2-5 | U1112 | TSC1-VR CAN message error | Timeout for the TSC1-VR CAN message if the engine torque/speed correction mode is active | Check the connection of the CAN line to other CAN devices. |
| U1113 | Timeout for the TSC1-VR CAN message if the engine torque/speed correction mode is not active | |||
| 4-3-5 | U1115 | WSI CAN message error | Timeout for the WSI CAN message | Check the connection of the CAN line to other CAN devices. |
| 4-3-1 | U0001 | Error of transmitted CAN messages | Timeout for messages transmitted to CAN | Check the connection of the CAN line to other CAN devices. |
| 2-6-3 | P060A | Disruption of communication with the power stages of the electronic unit controlled by SPI | Disruption of communication with the CJ940 electronic unit module | |
| 2-6-1 | P0607 | Restart of the electronic unit recorded as protective | A restart of the electronic unit has occurred | |
| P0607 | Restart of the electronic unit visible in the fault memory | A restart of the electronic unit has occurred | ||
| 2-6-3 | P1607 | Error of the maximum limit of the supply voltage of the CJ940 module | Internal supply voltage above the maximum limit | |
| 2-6-3 | P1608 | Error of the minimum limit of the supply voltage of the CJ940 module | Internal supply voltage below the minimum limit | |
| 2-3-3 | P0098 | Fault in the circuit of the air temperature sensor | Voltage above the maximum limit | Check the condition and connection of the air temperature sensor. |
| P0097 | Voltage below the minimum limit | |||
| P0099 | Defective signal via CAN | |||
| 1-5-1 | P1203 | Fault in the circuit of the power stage of the injector control Bank1, specific error, engine stop | Short circuit | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P1204 | Short circuit of the low side to earth | |||
| P1205 | Depending on the setting | |||
| P1206 | Non-classifiable error | |||
| 1-5-1 | P1207 | Fault in the circuit of the power stage of the injector control Bank1, specific warning, engine stop | Depending on the setting | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P1208 | Depending on the setting | |||
| P1209 | No load resistance | |||
| P120A | Depending on the setting | |||
| 1-5-2 | P120B | Fault in the circuit of the power stage of the injector control Bank2, specific error, engine stop | Short circuit | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P120C | Short circuit of the low side to earth | |||
| P120D | Depending on the setting | |||
| P120E | Non-classifiable error | |||
| 1-5-2 | P120F | Fault in the circuit of the power stage of the injector control Bank2, specific warning, engine stop | Depending on the setting | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P1210 | Depending on the setting | |||
| P1211 | No load resistance | |||
| P1212 | Depending on the setting | |||
| 1-5-3 | P062B | Fault of the microcircuit of the power stage of the injector control, specific error, engine stop | CY33X microcircuit: internal restart / counter loss / reduced voltage | |
| P062B | CY33X microcircuit has no right to operate / CY33X initialisation error | |||
| P062B | CY33X microcircuit in test mode | |||
| P062B | Disruption of communication with the CY33X microcircuit / checksum error / reverse check error | |||
| P062B | CY33X microcircuit: internal equality error | |||
| P062B | CY33X microcircuit: internal program algorithm error | |||
| P062B | CY33X microcircuit: check of inv.YSEL during ON failed | |||
| P062B | CY33X microcircuit exceeded the timeout for at least one cylinder | |||
| 1-4-1 | P0262 | Fault in the circuit of the power stage of the cylinder 1 control, specific error, engine stop | Short circuit of the low side to the battery | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P0263 | Depending on the setting | |||
| P0261 | Short circuit of the low side and the high side | |||
| P0263 | Non-classifiable error | |||
| 1-4-1 | P1213 | Fault in the circuit of the power stage of the cylinder 1 control, specific warning | Depending on the setting | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P1214 | Depending on the setting | |||
| P0201 | No load resistance | |||
| P1215 | Depending on the setting | |||
| 1-4-2 | P0265 | Fault in the circuit of the power stage of the cylinder 2 control, specific error, engine stop | Short circuit of the low side to the battery | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P0266 | Depending on the setting | |||
| P0264 | Short circuit of the low side and the high side | |||
| P0266 | Non-classifiable error | |||
| 1-4-2 | P1216 | Fault in the circuit of the power stage of the cylinder 2 control, specific warning | Depending on the setting | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P1217 | Depending on the setting | |||
| P0202 | No load resistance | |||
| P1218 | Depending on the setting | |||
| 1-4-3 | P0268 | Fault in the circuit of the power stage of the cylinder 3 control, specific error, engine stop | Short circuit of the low side to the battery | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P0269 | Depending on the setting | |||
| P0267 | Short circuit of the low side and the high side | |||
| P0269 | Non-classifiable error | |||
| 1-4-3 | P1219 | Fault in the circuit of the power stage of the cylinder 3 control, specific warning | Depending on the setting | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P121A | Depending on the setting | |||
| P0203 | No load resistance | |||
| P1218 | Depending on the setting | |||
| 1-4-4 | P0271 | Fault in the circuit of the power stage of the cylinder 4 control, specific error, engine stop | Short circuit of the low side to the battery | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P0272 | Depending on the setting | |||
| P0270 | Short circuit of the low side and the high side | |||
| P0272 | Non-classifiable error | |||
| 1-4-4 | P121C | Fault in the circuit of the power stage of the cylinder 4 control, specific warning | Depending on the setting | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| P121D | Depending on the setting | |||
| P0204 | No load resistance | |||
| P121E | Depending on the setting | |||
| 1-5-4 | P1225 | Number of operating cylinders less than the specified minimum limit, engine stop | Number of operating cylinders less than the specified minimum limit | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| 1-3-2 | P0687 | Fault in the circuit of the main relay 2 (control unit) | Short circuit to the supply battery | Check the condition and connection of the main relay. |
| P0686 | Short circuit to earth | |||
| 1-3-2 | P160F | Fault in the circuit of the main relay 1 (control unit) | Short circuit to the supply battery | Check the condition and connection of the main relay. |
| P160F | Short circuit to earth | |||
| 2-6-4 | P0600 | Communication monitoring function between the Watchdog of the CY310 and the controller | Implausible operation of the controller or of the Watchdog monitoring system, or the system must cease operation | |
| 4-1-1 | U0029 | Absence of the CAN A bus | Absence of the CAN A bus | Check the connection of the CAN A line to other CAN devices. |
| 4-1-2 | U0038 | Absence of the CAN B bus | Absence of the CAN B bus | Check the connection of the CAN B line to other CAN devices. |
| 4-1-3 | U0047 | Absence of the CAN C bus | Absence of the CAN C bus | Check the connection of the CAN line to other CAN devices. |
| 2-4-3 | P0523 | Fault in the circuit of the oil pressure sensor | Voltage above the specified maximum limit | Check the condition and connection of the oil pressure sensor. |
| P0522 | Voltage below the specified minimum limit | |||
| P0520 | Defective signal from the sensor or via CAN | |||
| P0521 | Implausible signal, oil pressure too high | |||
| 2-4-3 | P0524 | Error of the oil pressure sensor signal, oil pressure too low | Implausible signal, oil pressure too low | Check the condition and connection of the oil pressure sensor. |
| 2-4-4 | P0198 | Fault in the circuit of the oil temperature sensor | Voltage above the specified maximum limit | Check the condition and connection of the oil temperature sensor. |
| P0197 | Voltage below the specified minimum limit | |||
| P0195 | Defective signal via CAN | |||
| P100D | Implausibility between the readings of the oil temperature and coolant temperature sensors | |||
| 2-4-4 | P0196 | Error of the oil temperature sensor signal, oil temperature too high | Implausible signal, oil temperature too high | Check the condition and connection of the oil temperature sensor. |
| 2-6-2 | P1613 | Error recorded by the electronic unit operation monitoring function | The injector energisation time exceeds the limit specified in the monitoring function | |
| 2-6-2 | P1614 | Error recorded by the electronic unit operation monitoring function by means of independent calculation of the engine speed | Implausibility between the engine speed calculated by the monitoring function and the main program | |
| 3-2-6 | P0629 | Fault in the circuit of the power stage of the electric fuel pre-supply pump control | Short circuit to the supply battery | Check the condition and connection of the electric fuel pre-supply pump. |
| P0628 | Short circuit to earth | |||
| P0627 | No load resistance | |||
| P062A | Excess heating temperature | |||
| 1-1-6 | P1616 | Fault recorded during initialisation of the unit by the function for checking additional methods of switching off the power stages of the cylinder control | The cylinder switch-off path by means of the Watchdog module is defective | |
| P1617 | The cylinder switch-off path by the function for monitoring the maximum voltage limit of the power stage is defective | |||
| P1618 | The cylinder switch-off path by the function for monitoring the minimum voltage limit of the power stage is defective | |||
| 1-3-1 | P0643 | Fault of the supply voltage of sensors 1 | Voltage above the specified maximum limit | |
| P0642 | Voltage below the specified minimum limit | |||
| 1-3-1 | P0653 | Fault of the supply voltage of sensors 2 | Voltage above the specified maximum limit | |
| P0652 | Voltage below the specified minimum limit | |||
| 1-3-1 | P0699 | Fault of the supply voltage of sensors 3 | Voltage above the specified maximum limit | |
| P0698 | Voltage below the specified minimum limit | |||
| 1-2-3 | P2533 | Fault in the circuit of terminal 15 | No signal from terminal 15 | Check the condition and connection of terminal 15. |
| 1-2-2 | P2530 | Fault in the circuit of terminal 50 | Terminal 50 always closed | Check the condition and connection of terminal 50. |
| 1-1-5 | P0607 | Error in the operation of the electronic time processor | Deviation between the time of the electronic time processor and the timer of the central processor | |
| 3-2-4 | P0501 | Fault in the measurement of the vehicle speed, path 1 | Vehicle speed according to the speed signal above the specified maximum vehicle speed | Check the condition and connection of the vehicle speed measurement sensor. Check the connection to the tachometer. Check the connection of the line to other CAN devices. |
| P0500 | Defective vehicle speed signal associated with a hardware fault of the electronic unit | |||
| P0501 | Implausible vehicle speed, taking into account the quantity of fuel injected and the engine speed | |||
| P2158 | Signal voltage above the specified maximum limit | |||
| P2160 | Signal voltage below the specified minimum limit | |||
| 3-2-4 | P2157 | Fault in the measurement of the vehicle speed, path 2 | Defective vehicle speed signal received via CAN | Check the condition and connection of the vehicle speed measurement sensor. Check the connection to the tachograph. Check the connection of the line to other CAN devices. |
| P2159 | Implausible voltage of the vehicle speed signal | |||
| 3-2-4 | P1511 | Fault in the measurement of the vehicle speed, path 3 | Pulse width of the speed signal above the specified maximum limit | Check the connection to the tachograph. |
| P1512 | Pulse width of the speed signal below the specified minimum limit | |||
| P1513 | Defective frequency of the vehicle speed signal associated with a hardware fault of the electronic unit | |||
| 4-1-4 | P0607 | Disruption of SPI communication between the central processor and the monitoring module | Disruption of SPI communication between the central processor and the monitoring module | |
| 1-3-5 | P0251 | Fault in the circuit of the power stage of the pulse-width modulation control of the high-pressure fuel pump metering unit | No load resistance | Check the condition and connection of the high-pressure fuel pump metering unit. |
| P0252 | Excess heating temperature | |||
| P0254 | Short circuit to the supply battery | |||
| P0253 | Short circuit to earth | |||
| P025D | Signal voltage above the specified maximum limit | |||
| P025C | Signal voltage below the specified minimum limit | Fault of the analogue-to-digital converter channel of the fuel pump metering unit control | ||
| 1-3-4 | P100F | Fault of the fuel pressure safety valve in the rail | Safety valve determined as open | |
| P1010 | The safety valve did not open after the pressure surge in the rail | |||
| 1-3-6 | P1011 | Fault of the fuel pressure safety valve in the rail, determined on the basis of data on its operation | The number of openings of the safety valve exceeds the number permitted by its technical characteristics | |
| P1012 | The open-state time of the safety valve exceeds the time permitted by its technical characteristics | |||
| P1013 | The number of openings and the open-state time of the safety valve exceed the number and time permitted by its technical characteristics | |||
| 1-3-3 | P0193 | Fault in the circuit of the fuel pressure sensor in the rail | Voltage above the specified maximum limit | Check the condition and connection of the fuel pressure sensor in the rail. |
| P0192 | Voltage below the specified minimum limit | |||
| 1-3-3 | P0191 | Fault of the fuel pressure sensor in the rail, signal offset monitoring | Signal of the fuel pressure sensor in the rail above the maximum permissible during signal offset monitoring | Check the condition and connection of the fuel pressure sensor in the rail. |
| P0191 | Signal of the fuel pressure sensor in the rail below the minimum permissible during signal offset monitoring | |||
| 2-5-1 | P1011 | Disruption of the control mode of the high-pressure fuel pump metering unit | Maximum positive deviation of the fuel pressure in the rail exceeded | Check the condition and connections of the components of the high-pressure and low-pressure hydraulic circuits. |
| 2-5-2 | P1012 | Maximum positive deviation of the fuel pressure in the rail exceeded when the specified pump delivery is exceeded | ||
| 2-5-4 | P1013 | Maximum negative deviation of the fuel pressure in the rail exceeded at the minimum delivery of the fuel pump metering unit | ||
| 2-5-3 | P0087 | Fuel pressure in the rail below the specified minimum limit | ||
| 2-5-3 | P0088 | Fuel pressure in the rail above the specified maximum limit | ||
| 2-5-7 | P101A | Degree of pressure fluctuations in the rail above the expected value | ||
| 2-5-5 | P1014 | Implausible setpoint value of the fuel pump metering unit in the mode of excess pump delivery | ||
| 2-5-6 | P1018 | Filtered current of the fuel pump metering unit below the minimum permissible current | ||
| 2-5-4 | P1019 | Maximum positive deviation of the fuel pressure in the rail exceeded at the specified pump delivery | ||
| 2-5-8 | P101B | Fuel pump delivery during engine idling above the specified maximum value | ||
| 1-3-1 | P1640 | Fault of the supply voltage of the 12 V sensors | Voltage above the specified maximum limit | |
| P1641 | Voltage below the specified minimum limit | |||
| 1-2-1 | P0617 | Fault in the circuit of the power stage of the starter relay control | Short circuit to the supply battery. High voltage level | Check the condition and connection of the starter relay. |
| P0616 | Short circuit to earth | |||
| 1-2-1 | P1638 | Fault in the circuit of the power stage of the starter relay control | Short circuit to the supply battery. Low voltage level | Check the condition and connection of the starter relay. |
| P1639 | Short circuit to earth | |||
| No load resistance | ||||
| 2-4-2 | P163A | Overheating of the coolant | Coolant temperature above the maximum permissible | |
| 2-3-2 | P2229 | Fault in the circuit of the atmospheric pressure sensor, physical limit check | Voltage above the maximum physical limit | Check the condition and connection of the atmospheric pressure sensor. |
| P2228 | Voltage below the minimum physical limit | |||
| 2-3-1 | P0238 | Fault in the circuit of the boost pressure sensor, physical limit check | Voltage above the maximum physical limit | Check the condition and connection of the boost pressure sensor. |
| P0237 | Voltage below the minimum physical limit | |||
| 2-4-1 | P0118 | Fault in the circuit of the coolant temperature sensor, physical limit check | Voltage above the maximum physical limit | Check the condition and connection of the coolant temperature sensor. |
| 2-2-3 | P0504 | Fault in the circuit of the brake pedal position sensor, when using a single sensor | Brake sensor defective | Press the brake pedal; if the error persists, check the condition and connection of the brake pedal position sensor. |
| P0504 | Error signal indicating deactivation of the cruise control function until the functioning of the brake pedal position sensor has been checked | Cruise control function deactivated until the functioning of the brake pedal position sensor has been checked | ||
| P0504 | Error signal for illuminating the diagnostic lamp, indicating deactivation of the cruise control function until the functioning of the brake pedal position sensor has been checked | Cruise control function deactivated until the functioning of the brake pedal position sensor has been checked. Diagnostic lamp illuminated | Press the brake pedal. If the error persists, check the condition and connection of the brake pedal position sensor. | |
| Faults not displayed by illumination of the diagnostic lamp | ||||
| 2-3-4 | P0113 | Fault in the circuit of the intake air temperature sensor in the mass air flow meter | Voltage above the specified maximum limit | Check the condition and connection of the mass air flow meter. |
| P0112 | Voltage below the specified minimum limit | |||
| 2-3-4 | P0101 | Error recorded by the function for checking the plausibility of the initial deviation from the standard voltage of the mass air flow meter signal | Voltage of the mass air flow meter signal above the specified limit | Check the condition and connection of the mass air flow meter. |
| P0101 | Voltage of the mass air flow meter signal below the specified limit | |||
| P0103 | Error recorded by the function for checking the plausibility of the sensitivity deviation of the mass air flow meter signal | Coefficient of the mass air flow meter above the specified limit | ||
| 3-3-5 | P0649 | Fault in the circuit of the adjustable speed limitation lamp | Short circuit to earth | Check the condition and connection of the lamp. |
| P0649 | No load resistance | |||
| P0649 | Excess heating temperature | |||
| 2-2-5 | P2299 | Error recorded by the function for checking the plausibility of the action of the accelerator pedal and the brake pedal | Accelerator pedal signal implausible | Check the condition and connection of the accelerator and brake pedal position sensors. |
| 3-2-2 | P0540 | Air preheating constantly switched on | Defective multi-signal | Check the condition and connection of the air preheating device. |
| 3-2-3 | P1020 | Error recorded by the function for checking the switching on of the air preheating | Change in the supply battery voltage when the air preheating is switched on greater than the specified maximum threshold | Check the condition and connection of the air preheating device. |
| P1021 | Change in the supply battery voltage when the air preheating is switched on less than the specified minimum threshold | |||
| 3-2-3 | P1022 | Error recorded by the function for checking the switching off of the air preheating | Change in the supply battery voltage when the air preheating is switched off greater than the specified maximum threshold | Check the condition and connection of the air preheating device. |
| P1023 | Change in the supply battery voltage when the air preheating is switched off less than the specified minimum threshold | |||
| 3-2-1 | P0542 | Fault in the circuit of the power stage of the air preheating | Short circuit to the supply battery | Check the condition and connection of the air preheating device. |
| P0541 | Short circuit to earth | |||
| 1-2-4 | P0563 | Inadmissible supply battery voltage | Voltage above the specified maximum limit | Check the condition and connection of the storage battery. |
| P0562 | Voltage below the specified minimum limit | |||
| 2-4-5 | P0116 | Error recorded by the function for checking the absolute plausibility of the coolant temperature sensor | Minimum coolant temperature not reached within the specified time interval | Check the condition and connection of the coolant temperature sensor. |
| 2-4-5 | P0116 | Error recorded by the function for checking the dynamic plausibility of the coolant temperature sensor | Minimum rise in coolant temperature not reached within the specified time interval | |
| 5-1-1 | P0301 | Error recorded by the function for monitoring misfires in cylinder 1 | Number of detected misfires above the specified limit | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| 5-1-2 | P0302 | Error recorded by the function for monitoring misfires in cylinder 2 | Number of detected misfires above the specified limit | |
| 5-1-3 | P0303 | Error recorded by the function for monitoring misfires in cylinder 3 | Number of detected misfires above the specified limit | |
| 5-3-1 | P0304 | Error recorded by the function for monitoring misfires in cylinder 4 | Number of detected misfires above the specified limit | |
| 5-1-5 | P0300 | Error recorded by the function for monitoring misfires in several cylinders | Number of detected misfires above the specified limit | Check the condition of the connectors and the connection cable of the engine cylinder injectors. |
| 2-2-8 | P0856 | Error in the operation of the resistance torque monitoring system unit | Physical implausibility of the request of the resistance torque monitoring system unit | Check the condition and connection of the torque monitoring system unit. Check the connection of the CAN line to other CAN devices. |
| 3-4-3 | P2530 | Fault in the circuit of the start button of the redundant engine control | Button sticks or is constantly pressed | Check the condition and connection of the start button of the redundant engine control. |
| 1-1-4 | P0008 | Starting and operation of the engine are carried out only by the camshaft speed sensor | Redundant mode active | Check the condition and connection of the crankshaft speed sensor. |
| 2-2-6 | P0219 | Exceeding of the maximum permissible crankshaft speed | Exceeding of the maximum permissible crankshaft speed recorded | If the exceeding occurred due to incorrect gear shifting from a higher to a lower gear: if the engine is in order, driving may continue. If the engine has spontaneously increased its speed, do not start the engine! |
| 1-2-5 | P1007 | The field FMTC_trq2qBas_MAP contains non-strictly monotonic curves of the dependence of the cyclic fuel quantity on the torque at fixed engine speed | Implausible appearance of the field | |
| 2-1-6 | P1008 | Fault in the circuit of the electric heating element of the fuel filter | Short circuit to the supply battery | Check the condition and connection of the electric heating element of the fuel filter. |
| P1009 | Short circuit to earth | |||
| 2-1-1 | P2269 | Water concentration in the fuel recorded by the sensor above the permissible value | The sensor determines a water concentration in the fuel above the permissible value | Replace the fuel. |
| 4-1-5 | U0113 | EngGsFlowRt CAN message error | Timeout for the EngGsFlowRt CAN message | Check the connection of the CAN line to other CAN devices. |
| 4-1-6 | U1101 | HRVD CAN message error | Timeout for the HRVD CAN message | |
| 4-4-4 | U0156 | RxAMCON CAN message error | Timeout for the RxAMCON CAN message | |
| 4-5-1 | U1102 | RxEngTemp2 CAN message error | Timeout for the RxEngTemp2 CAN message | |
| 4-5-2 | U1103 | TF CAN message error | Timeout for the TF CAN message | |
| 4-1-7 | U1114 | TimeDate CAN message error | Timeout for the TimeDate CAN message | |
| 4-6-6 | U0439 | DM1DCU CAN message error | Timeout for the DM1DCU CAN message | |
| 2-6-5 | P062F | Fault of the electrically erasable programmable read-only memory (EEPROM) | Error during the last read operation | |
| P062F | Error during the last write operation | |||
| P062F | Default value is used | |||
| 2-6-1 | P0607 | Restart of the electronic unit for hidden reasons | A restart of the electronic unit has occurred | |
| 1-5-5 | P1300 | Limitation of the number of fuel injections | Number of injections limited by the load balance of the boost coordinator | Driving may continue. |
| P1301 | Number of injections limited by the quantitative balance of the high-pressure fuel pump | |||
| P1302 | Number of injections limited by the software setting | |||
| 3-4-1 | P0564 | Fault in the circuit of the cruise control actuator | Non-functional combination of switches | Check the condition and connection of the cruise control device (control unit). |
| 3-3-3 | P0650 | Fault in the circuit of the power stage of the malfunction indicator lamp control | Short circuit to the supply battery | Check the condition and connection of the malfunction indicator lamp. |
| P0650 | Short circuit to earth | |||
| P0650 | No load resistance | |||
| P0650 | Excess heating temperature | |||
| 3-3-1 | P1619 | Fault in the circuit of the power stage of the system diagnostic lamp control | Short circuit to the supply battery | Check the condition and connection of the system diagnostic lamp. |
| P161A | Short circuit to earth | |||
| P161B | No load resistance | |||
| P161C | Excess heating temperature | |||
| 3-3-4 | P162F | Fault in the circuit of the power stage of the warning lamp control | Short circuit to the supply battery | Check the condition and connection of the warning lamp. |
| P1630 | Short circuit to earth | |||
| P1631 | No load resistance | |||
| P1632 | Excess heating temperature | |||
| 3-1-3 | P0647 | Fault in the circuit of the power stage of the air conditioning control | Short circuit to the supply battery | Check the condition and connection of the air conditioning. |
| P0646 | Short circuit to earth | |||
| P0645 | No load resistance | |||
| P0645 | Excess heating temperature | |||
| 3-4-4 | P1000 | Fault of the analogue-to-digital converter channel of the boost compressor regulator control | Signal voltage above the specified maximum limit | Check the condition and connection of the boost compressor regulator. |
| P1001 | Signal voltage below the specified minimum limit | |||
| P1002 | Defective signal | |||
| 5-2-2 | P160C | Error signal indicating that the high-pressure circuit check test is being carried out | During the test, the rail pressure monitoring functions are deactivated | |
| 2-3-5 | P0073 | Fault in the circuit of the ambient temperature sensor, physical limit check | Voltage above the maximum physical limit | Check the condition and connection of the ambient temperature sensor. |
| P0072 | Voltage below the minimum physical limit | |||
| 4-6-1 | U0434 | DM1DCU CAN message error, SPN block 1 | The SPN received in the CAN message coincides with the SPN located in SPN block 1 | Contact a service centre. |
| 4-6-2 | U0435 | DM1DCU CAN message error, SPN block 2 | The SPN received in the CAN message coincides with the SPN located in SPN block 2 | |
| 4-6-3 | U0436 | DM1DCU CAN message error, SPN block 3 | The SPN received in the CAN message coincides with the SPN located in SPN block 3 | |
| 4-6-4 | U0437 | DM1DCU CAN message error, SPN block 4 | The SPN received in the CAN message coincides with the SPN located in SPN block 4 | |
| 4-6-5 | U0438 | DM1DCU CAN message error, SPN block 5 | The SPN received in the CAN message coincides with the SPN located in SPN block 5 | |
Not all faults that occur can be recorded in the memory of the control unit.
Therefore, during the operation of the diesel engine, monitor the readings of the instruments, the colour of the exhaust gases, and listen to the operation of the diesel engine.
If abnormal noises appear, stop the diesel engine, identify the cause of the fault and rectify it.
If the fault could not be rectified, proceed to the diagnostic post of the service station.
The electronic information of the service station database provides support in the further search for faults and gives instructions on fault finding.
