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

Rev counter not working

Make
Fiat
Model
Croma Factory Service Manual
Year
2005–2010
Section
Instrument panel › Rev counter not working
Fault diagnosisRev counter not working

REV COUNTER NOT WORKING

With the engine running, the rev counter does not work or works irregularly.

1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION

Connect the Examiner equipment to the diagnostic socket.

Check that there are no faults in the instrument panel

Move on to Step 2Presence of errorsContinue following the instructions for the diagnostic equipment
2ELECTRICAL CIRCUIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check connections between instrument panel, Body Computer and engine management control unit

See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT

Move on to Step 3Wiring defectiveRepair/replace the wiring.
3CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Keeping the Examiner equipment connected to the diagnostic socket, check the operation of the pointer in active diganosisMove on to Step 4Rev counter not working through stepping motor failure

Replace instrument panel

Op. 5560B10 CONTROL PANEL - R+R

4CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosis

Parts & tools for this job For 2005 Fiat Croma

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