Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat 500 Factory Service Manual (2007-2024)22 · Fault diagnosis
22 · Diagnostics

Speedometer not working

Make
Fiat
Model
500 Factory Service Manual
Year
2007–2024
Section
Instrument panel › Speedometer not working
Fault diagnosisSpeedometer not working

SPEEDOMETER NOT WORKING

1.2 8v, 1.3 Multijet, 1.4 16v

While driving, the speedometer does not work or works irregularly;

The speed message is supplied by the Brake Node and is made available, via the Body Computer Node, to the Instrument Panel Node through the network. It should be remembered that if there is an error in the C-CAN the signal is supplied by the Brake Node to the Body Computer Node via the F line and made available from the Body Computer Node at the B-Can.

Test results
0PRELIMINARY CHECKAll OKProblems encounteredOperation
Check that no failure message is displayed with the engine startedMove on to Step 2Faults foundMove on to Step 1
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation

Connect the diagnostic test equipment (Examiner) to the Body Computer.

Check the following at the CAN:

  • no control unit inactive;
  • that there are no faulty control units;
  • no control unit with faulty CAN line
Move on to Step 2Faults on CAN networkContinue following the instructions on the diagnostic equipment
Errors on instrument panel nodeMove on to Step 2
2CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Connect the Examiner diagnostic equipment to the diagnostic socket or keep it connected and check that there are no faults at the instrument panel nodeMove on to Step 3Presence of errors or failed dialogue with the diagnostic equipmentContinue following the instructions on the diagnostic equipment
3CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Keeping the diagnostic equipment (Examiner) connected to the diagnostic socket, check the operation of the pointer in active diagnosisEnd of diagnosisRev counter not working

Replace the instrument panel

Op. 5560B11 ANALOGUE CONTROL PANEL - R+R OR REPLACE

Parts & tools for this job For 2007 Fiat 500

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