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Fiat Ulysse Factory Service Manual (2002-2010)22 · Fault diagnosis
22 · Diagnostics

Fuel level gauge not working

Make
Fiat
Model
Ulysse Factory Service Manual
Year
2002–2010
Section
Instrument panel › Fuel level gauge not working
Fault diagnosisFuel level gauge not working

FUEL LEVEL GAUGE NOT WORKING

STEPOPERATIONS TO BE CARRIED OUTTEST RESULTS
1BATTERY VOLTAGE CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that the battery voltage is correct.Move on to StepBattery voltage not correct.Restore the correct voltage.
2CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Connect the Examiner diagnostic equipment and check, in the Instrument Panel Node ambient, that there are no errors and that the parameters are present.Move on to Step1. Impossible to connect with the control unit.Move on to Step
2. Errors detectedMove on to Step
3ERRORS CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check for the presence of one or more of the following errors using the Examiner in the Instrument Panel Node ambient:

  • No communication with the BSI
  • Communication error with instrument panel
  • VAN line error
  • Control unit broken
  • Fuel level gauge error
Move on to Step1. No communication with Body Computer error detected and/or VAN CONfor. network error and/or communication error with the instrument panel and/or control unit broken.Move on to Step
2. Fuel level gauge errorMove on to Step
4ACTIVE DIAGNOSIS CHECKALL OKPROBLEMS ENCOUNTEREDACTION

With the Examiner in the Instrument Panel Node ambient check that the function in question is correctly activated in Active Diagnosis.

  • Autotest
  • Fuel level gauge
Move on to StepThe component in question is not activated. It is not operated by the active diagnosis.Replace the Instrument Panel control unit.
6CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner diagnostic equipment check, in the Body Computer ambient, that there are no errors and that the parameters are present.Move on to Step1. Impossible to connect with the control unit.1. Replace the Body Computer control unit.
2. Errors presentMove on to Step
7ERRORS CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check for the presence of one or more of the following errors using the Examiner in the Body Computer ambient:

  • VAN CONF error: connection with Instrument Panel
  • VAN CONF command inconsistency
  • Multif. or Navig. display error
  • CAN line error (connection with other control units)
Move on to Step1. No communication with Instrument Panel error detected and/or VAN error.Move on to Step
2. No communication with float system error detected.Move on to Step
3. Control unit broken.3. Replace the Body Computer control unit
9INSTRUMENT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the operation of the instrument, in particular the control device for the fuel level signal and the wiring.Move on to Step1. Fuel level device faulty.1. Replace the fuel level device.
2. Gauge wiring and body computer faulty2. Repair wiring.
10CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present

Parts & tools for this job For 2002 Fiat Ulysse

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