F46 ASR FUNCTION WILL NOT GO OFF - Fiat - STILO - eLearn

3360220 - F46 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

CHECKING WITH DIAGNOSTIC EQUIPMENT

All OK

Problems met

Operation

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 4

There are errors in the control unit

Continue according to the instructions for the diagnostic equipment Op. 3310A48

The parameter does not change state

Continue to Step 2

CHECK SWITCH

All OK

Problems met

Operation

Check that the ASR switch is working

Continue to Step 3

Faulty switch

Replace ASR switch Op. 3350A10

CHECK SWITCH CONNECTIONS

All OK

Problems met

Operation

Check the continuity of the ASR switch circuit See E7020 ABS

Continue to Step 4

Lack of continuity

Restore connections See E7020 ABS

CHECKING CORRECT OPERATION

All OK

Problems met

Operation

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. 3340A20Search for the fault starting from another symptom'