312000163 - F033 ANTI-SLIP FUNCTION NOT WORKING - ASR AND MSR

When the ASR is engaged the message "ASR on" does not appear on the display for 5 seconds; the LED in the button remains on (indicating that it is switched off).

		Test results
1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the Examiner Plus or Smart diagnostic equipment to the diagnostic connector and check the following at the brake node:- in the errors ambient, that there are no faults;- in the parameters ambient, the plausibility of all the parameters	Move on to Step 2	1. Error detected in the control unit2. No communication with the control unit.	1. Continue following the instructions for the diagnostic equipment 2. Restore the connection between the ABS control unit and the diagnostic connector see    See E7020 ABS
2	SWITCH CHECK	All OK	Problems encountered	Operation
	Check the operation of the ASR switch checking that there is a short circuit with the button pressed and an open circuit with the button released    See E7023 ESP	Move on to Step 3	Switch defective	Replace the switch
3	CHECK	All OK	Problems encountered	Operation
	Check the continuity/insulation of the ASR switch connections    See E7023 ESP	End of diagnosis	No continuity/insulation	Restore the correct connections    See E7023 ESP