Workshop Manuals Factory service & repair Fiat
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Fiat Grande Punto Factory Service Manual (2005-2012)22 · Fault diagnosis
22 · Diagnostics

City warning light on

Make
Fiat
Model
Grande Punto Factory Service Manual
Year
2005–2012
Section
Instrument panel › City warning light on
Fault diagnosisCity warning light on

CITY WARNING LIGHT ON

After the initial test, the CITY warning light on the Instrument Panel Node remains on.

Results of the tests
0PRELIMINARY CHECKAll OKProblems encounteredOperation
Press the button repeatedly to check whether the problem is the result of an incorrect setting and check whether the LED in the button changes statusEnd of diagnosis

1.Incorrect CITY function setting

2.The LED in the button does not change status

3.The LED in the button comes on and then goes out

1.Restore the correct function

2.Move on to Step 6

3.Move on to Step 1

1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using an Examiner check, in Instrument Panel mode, that there are no errors and that the parameters are present.Move on to Step 5

1. Impossible to connect with the Instrument Panel control unit

2. Presence of errors

1. Move on to Step 2

2. Continue following the instructions on the diagnostic instrument

2ELECTRICAL POWER SUPPLY CHECKAll OKProblems encounteredOperation
Check the electricity supply to the Instrument Panel Node is correct.Move on to Step 3Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow).
3CHECK ELECTRICAL CONNECTIONSAll OKProblems encounteredOperation

Check the wiring between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected See Wiring Diagram

See E7045 ELECTRIC STEERING

Move on to Step 4Electrical connections not operationalRenew the damaged electrical connections
4CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using the Examiner, check the possibility of connecting with the Instrument Panel NodeMove on to Step 6Impossible to connect with the Instrument Panel control unit

Replace the Instrument Panel

Op. 5560B10 CONTROL PANEL - R+R

5ACTIVE DIAGNOSIS CHECKAll OKProblems encounteredOperation
With the Examiner in the Instrument Panel Node ambient check that the CITY warning light is correctly activated/deactivated in Active DiagnosisMove on to Step 6The warning light is not activated/deactivated

Replace the Instrument Panel

Op. 5560B10 CONTROL PANEL - R+R

6CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using the Examiner in Body Computer Node mode check that there are no errors and that the CITY button status has changed.Move on to Step 5

1. Impossible to connect to the Body Computer control unit.

2. Presence of errors

3. The parameters do not change

1. Move on to Step 7

2. Continue following the instructions on the diagnostic instrument

3. Move on to Step 10

7ELECTRICAL POWER SUPPLY CHECKAll OKProblems encounteredOperation
Check the electricity supply to the Body Computer Node is correct.Move on to Step 8Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow)
8CONNECTIONS CHECKAll OKProblems encounteredOperation

Check the continuity of the wiring between the CITY button and the Body Computer Node See Wiring Diagram

See E7045 ELECTRIC STEERING

Move on to Step 9Electrical connections not operationalRenew the damaged electrical connections
9CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Use an Examiner to check the possibility of connection to the Body Computer NodeMove on to Step 10Impossible to connect to the Body Computer control unit.

Replace the Body Computer Node

Op. 5505A32 BODY COMPUTER - R.R

10CONNECTIONS CHECKAll OKProblems encounteredOperation

Check that the CITY button is working properly and that the wiring with with the Body Computer Node is correct See Wiring Diagram

See E7045 ELECTRIC STEERING

End of diagnosis

1. Button faulty

2. Electrical wiring not working

1. Replace the defective component

2. Repair the damaged wiring

Parts & tools for this job For 2005 Fiat Grande Punto

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