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Fiat Bravo Factory Service Manual (2007-2014)22 · Fault diagnosis
22 · Diagnostics

Fuel level gauge not working

Make
Fiat
Model
Bravo Factory Service Manual
Year
2007–2014
Section
Instrument panel › Fuel level gauge not working
Fault diagnosisFuel level gauge not working

FUEL LEVEL GAUGE NOT WORKING

With key on, the fuel level gauge on the instrument panel does not work (level indicated is not actual tank level).

the fuel level message is supplied by the Body Computer Node and made available to the Instrument Panel Node via the B-CAN. The Body Computer Node also sends the fuel level sensor error message.

Test results
0PRELIMINARY CHECKAll OKProblems encounteredOperation

Check the following with the engine running:

  • the level pointer is not in contact with the 0 mark and the fuel reserve warning light is not flashing
  • There are no error messages on the reconfigurable matrix
Move on to Step 2Level pointer in contact and warning light flashingMove on to Step 3
Presence of fault messageMove on to Step 1
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation

Connect the diagnostic test equipment (Examiner or other instruments) 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 2Presence of faultsContinue following the instructions on the diagnostic equipment
2CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Keeping the diagnostic equipment (Examiner or Examiner Plus) connected to the diagnostic socket, check the operation of the pointer in active diagnosisMove on to Step 3Pointer does not move

Replace the instrument panel

Op. 5560B10 CONTROL PANEL - R+R

3CHECK FUEL LEVEL SENSORAll OKProblems encounteredOperation
Check fuel level sensor operationMove on to Step 4Sensor not working

Replace the fuel pump assembly

Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R

4ELECTRICAL CIRCUIT CHECKAll OKProblems encounteredOperation

Check the continuity/insulation of the lead between fuel level sensor and Body Computer See

See E4010 INSTRUMENT PANEL

Move on to Step 5Leads interrupted or not insulated

Restore continuity or insulation See

See E4010 INSTRUMENT PANEL

5CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check that the fault is no longer presentEnd of diagnosis

Parts & tools for this job For 2007 Fiat Bravo

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