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Fiat 500 Factory Service Manual (2007-2024)22 · Fault diagnosis
22 · Diagnostics

Handbrake applied warning light

Make
Fiat
Model
500 Factory Service Manual
Year
2007–2024
Section
Instrument panel › Handbrake applied warning light
Fault diagnosisHandbrake applied warning light

HANDBRAKE APPLIED WARNING LIGHT

1.2 8v, 1.3 Multijet, 1.4 16v

The warning light is on constantly even with the handbrake released.

N.B: The command to switch on the handbrake warning light is sent by the switch on the lever to the Body Computer Node which makes it available on the B-CAN to the Instrument Panel Node.

Test results
1ELECTRICAL SYSTEM CHECKAll OKProblems encounteredOperation
Check the insulation to earth of the wiring between the Handbrake lever switch and the Body ComputerMove on to Step 2Wiring not insulated.

Restore the correct wiring

See E4010 INSTRUMENT PANEL

2SWITCH CHECKAll OKProblems encounteredOperation
Check the condition of the switch on the handbrake leverMove on to Step 3Switch defective

Replace the switch

Op. 5550D18 HANDBRAKE ON WARNING LIGHT SWITCH - R+R

3ACTIVE DIAGNOSIS CHECKAll OKProblems encounteredOperation
With the Examiner in the Instrument Panel Node ambient check that the handbrake warning light is correctly activated in Active Diagnosis.Move on to Step 4The handbrake warning light does not flash

Replace the Instrument Panel

Op. 5560B10 CONTROL PANEL - R+R

4CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Check that the Body Computer Node is working properlyEnd of diagnosisBody Computer defective

Replace Body Computer

Op. 5505A32 BODY COMPUTER - R.R

Parts & tools for this job For 2007 Fiat 500

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