| STEP | CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK |
|---|
| 1 | Turn the ignition key OFF.Disconnect the wiring harness connector from the fuel pressure sensor.Turn the ignition key ON.Select the following system on the diagnostic equipment: Diesel electronic injection control unit EDC16C39 CF4/EOBD CAN (EP engine 1.9).Check that error P0651 – Power supply to sensors 2 is “Present”.Move on to Step 5 | Move on to Step 2 |
| 2 | Turn the ignition key OFF.Disconnect the wiring harness connector from engine control unit connector BTurn the ignition key ON.Check that the resistance across pin 43 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the fuel pressure sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 3 | Check that the resistance across pin 8 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the fuel pressure sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 4 | Replace the fuel pressure sensor Op. 1060G28 FUEL PRESSURE SENSOR ON FUEL MANIFOLD TO INJECTORS - R.R The test can be considered over | |
| 5 | Turn the ignition key OFF.Disconnect the wiring harness connector from the air temperature/pressure sensor.Turn the ignition key ON.Select the following system on the diagnostic equipment: Diesel electronic injection control unit EDC16C39 CF4/EOBD CAN (EP engine 1.9)Check that error P0651 – Power supply to sensors 2 is “Present”.Move on to Step 9 | Move on to Step 6 |
| 6 | Turn the ignition key OFF.Disconnect the wiring harness connector from engine control unit connector BTurn the ignition key ON.Check that the resistance across pin 40 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the air pressure/temperature sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 7 | Check that the resistance across pin 23 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the air pressure/temperature sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 8 | Replace the air temperature/pressure sensor Op. 1060G16 EXCESS PRESSURE SENSOR - R.R. The test can be considered over | |
| 9 | Turn the ignition key OFF.Disconnect the wiring harness connector from the accelerator pedal potentiometerTurn the ignition key ON.Select the following system on the diagnostic equipment: Diesel electronic injection control unit EDC16C39 CF4/EOBD CAN (EP engine 1.9).Check that error P0651 – Power supply to sensors 2 is “Present”.Move on to Step 13 | Move on to Step 10 |
| 10 | Turn the ignition key OFF.Disconnect the cable loom connector from control unit connector ATurn the ignition key ON.Check that the resistance across pin 31 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the accelerator pedal potentiometer and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 11 | Check that the resistance across pin 8 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the accelerator pedal potentiometer and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 12 | Replace the accelerator pedal Op. 1068A20 ACCELERATOR PEDAL WITH BUILT-IN POTENTIOMETER - R.R and check the fault has disappeared.The test can be considered over | Repair the original accelerator pedal and replace the engine management control unit. Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R |
| 13 | Turn the ignition key OFF.Disconnect the wiring harness connector from engine control unit connector BTurn the ignition key ON.Check that the resistance across pin 28 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the fuel pressure sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 14 | Turn the ignition key OFF.Check that the resistance between pin 28 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is more than 500 kOhm. | Repair or if necessary replace the electrical wiring between the fuel pressure sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 15 | Disconnect the cable loom connector from control unit connector ATurn the ignition key ON.Check that the resistance across pin 46 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the accelerator pedal potentiometer and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 16 | Turn the ignition key OFF.Check that the resistance between pin 46 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is more than 500 kOhm. | Repair or if necessary replace the electrical wiring between the accelerator pedal potentiometer and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 17 | Disconnect the cable loom connector from control unit connector BTurn the ignition key ON.Check that the resistance across pin 13 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is greater than 0.3 V. | Repair or if necessary replace the electrical wiring between the air pressure/temperature sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 18 | Check that the resistance between pin 13 (wiring side) of the control unit See M010 ENGINE MANAGEMENT ECU and the earth is more than 500 kOhm. | Repair or if necessary replace the electrical wiring between the air pressure/temperature sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 19 | Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R | |