22 · Diagnostics

Abs and handbrake warning lights both on

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Instrument panel › Abs and handbrake warning lights both on

‹ Prev Abs warning light off / (do not carry out initial test)Next › Airbag failure warning light on

Fault diagnosisAbs and handbrake warning lights both on

ABS AND HANDBRAKE WARNING LIGHTS BOTH ON

The handbrake lever is released

The handbrake warning light also indicates that the brake fluid level is low and, if it is on at the same time as the ABS warning light, the malfunction of the EBD system.

A parking brake warning light activation command is sent by the switch on the lever to the Body Computer Node, which makes it available to the Instrument Panel Node via the B-CAN network

1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the diagnostic equipment and check at the BRAKES NODE: that there are no system/component faults	Continue to Step 2	system/component fault	Continue as instructed by the tester
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keep the tester connected and check the BRAKE NODE for: the operation of the ABS and EBD warning light through active diagnosis	Continue to Step 7	warning lights not flashing	Continue to Step 6
3	ELECTRICAL EQUIPMENT CHECK	All OK	Problems met	Operation
	Check the insulation of the wiring between the handbrake switch and the Body Computer Node	Continue to Step 4	Wiring s.c.	Renew the wiring
4	SWITCH CHECK	All OK	Problems met	Operation
	Check the efficiency of the handbrake lever switch	Continue to Step 5	Switch broken (always closed to earth)	Replace switch Op. 5550D18
5	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment or keep it connected and check the plausibility of the handbrake applied parameter at the BODY COMPUTER NODE	Continue to Step 6	Parameter not plausible	Replace the Body Computer Node Op. 5505A32
6	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keeping the diagnostic equipment connected, check at the INSTRUMENT PANEL NODE: the operation of the ABS and EBD warning light through active diagnosis	Continue to Step 7	warning lights not flashing	Replace instrument panel Op. 5560B11
7	WARNING LIGHTS OPERATION CHECK	All OK	Problems met	Operation
	Check that the ABS warning light is off Check that the 'handbrake applied' warning light is off	End of diagnosis	ABS or ABS and handbrake warning lights on	Replace the ABS unit Op. 3340A12
		End of diagnosis	ABS or ABS and handbrake warning lights on	Continue to Step 3

‹ Prev Abs warning light off / (do not carry out initial test)Next › Airbag failure warning light on

Parts & tools for this job For 2001 Fiat Stilo

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