Workshop Manuals Factory service & repair Fiat
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Fiat Croma Factory Service Manual (2005-2010)22 · Fault diagnosis
22 · Diagnostics

Engine not feeling accelerator pedal pressure

Make
Fiat
Model
Croma Factory Service Manual
Year
2005–2010
Section
Engine › Engine not feeling accelerator pedal pressure
Fault diagnosisEngine not feeling accelerator pedal pressure

ENGINE NOT FEELING ACCELERATOR PEDAL PRESSURE

1.9 JTD 8v, 1.9 JTD 16v, 2.4 JTD 20v

The customer complains of: The engine does not react when the accelerator pedal is operated

Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation

Check that the engine oil level is correct

Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY

Check that the air intake/vacuum circuit is working properly by carrying out the

See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECK

Check the condition of the fuel supply circuit and make sure that it is working properly carrying out the

See Test 1040OA FUEL SUPPLY CIRCUIT CHECK

Check the operation of the low pressure supply circuit by carrying out the

See Test 1060OB CHECK ON SUPPLY LOW PRESSURE FUEL CIRCUIT

Move on to Step 1Oil level incorrect

Restore the correct engine oil level

Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY

1AMBIENT PARAMETERS CHECKAll OKProblems encounteredOperation

Select the following control unit at the diagnostic equipment: EDC16C39 Diesel electronic injection control unit.

Check the value of the following parameters:

. Battery voltage

See Test 5530BB BATTERY VOLTAGE CHECK

. Accelerator pedal

. Accelerator position 1 AD/C

. Accelerator position 2 AD/C

See Test 1068AC ACCELERATOR PEDAL CHECKS

. Target Diesel pressure

. Measured Diesel pressure

See Test 1060GH DIESEL FUEL PRESSURE CHECK

Move on to Step 2
2ELECTRICAL SYSTEM CHECKAll OKProblems encounteredOperation

Check that the fuses F1 (the last one at the bottom of the vertical row) and F20 (the first one on the right of the lower row) have not blown.

The check on the following system is only necessary if the outside temperature is below 0 °C.

Move on to Step 4Fuse F1 has blown

Restore the connections or, if necessary, replace the junction unit in the engine compartment

Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R.

Fuse F20 has blownMove on to Step 3
3DIESEL PREHEATING FUSE CHECKAll OKProblems encounteredOperation

Check the circuit for the protective fuse for the diesel preheating relay, by carrying out the

See Test 5505AB CHECK DIESEL PREHEATING RELAY PROTECTIVE FUSE

Move on to Step 4
4DIESEL PREHEATING RELAY CHECKAll OKProblems encounteredOperation

Check the diesel preheating relay circuit, conduct

See Test 5505AC CHECK DIESEL PREHEATING RELAY

End of diagnosis

Parts & tools for this job For 2005 Fiat Croma

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