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Fiat Stilo Factory Service Manual (2001-2007)22 · Fault diagnosis
22 · Diagnostics

Asr function will not go off

Make
Fiat
Model
Stilo Factory Service Manual
Year
2001–2007
Section
Braking system › Asr function will not go off
Fault diagnosisAsr function will not go off

ASR FUNCTION WILL NOT GO OFF

When the ASR function deactivation button is pressed, the ASR deactivated message does not appear on the panel for 5 seconds and the button led does not come on; The function is not deactivated

Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect an Examiner to the tester input and check the brake node for the following in error modes:

  • there are no faults

In parameter mode

  • taht the ASR button parameter changes status when the ASR button is pressed
Continue to Step 4There are errors in the control unitContinue according to the instructions for the diagnostic equipment Op. 3310A48
The parameter does not change stateContinue to Step 2
2CHECK SWITCHAll OKProblems metOperation
Check that the ASR switch is workingContinue to Step 3Faulty switchReplace ASR switch Op. 3350A10
3CHECK SWITCH CONNECTIONSAll OKProblems metOperation
Check the continuity of the ASR switch circuit See E7020 ABSContinue to Step 4Lack of continuityRestore connections See E7020 ABS
4CHECKING CORRECT OPERATIONAll OKProblems metOperation

Check that the fault is no longer present

The test is essential, as the braking system involves a safety feature of the car

Fault persists

Change the brake system control unit Op. 3340A20

Search for the fault starting from another symptom'

Parts & tools for this job For 2001 Fiat Stilo

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