184000620 - Z68 BRAKE LIGHT SWITCH ERROR

The diagnostic equipment signals the following error: C1161 Brake Light Switch

This error can be signalled in two sets of cases. The first is when there is an open circuit in the brake lights switch or the wiring, the brake lights are burnt out or the reading circuit is damaged.The second set of circumstances is if there is an open circuit or short circuit (positive or earth) for the brake lights switch or wiring, if the switch or the reading circuit is damaged. In all these cases the braking action is detected without pressing the brake pedal switch (or the closure of the switch contacts)

		Results of the tests
1	ELECTRICAL CHECKS	All OK	Problems encountered	Operation
	Check that the electrical connections for the brake lights circuit are correct.    See E2021 BRAKE LIGHTSAlso check that the brake lights are not burnt out	Move on to Step 2	Wiring faulty	Repair the wiring
			Brake lights burnt out	Replace the burnt out bulb    Op. 5540A50 TAIL-LIGHT BULB (ONE), LH OR RH - REPLACE
			Third brake light burnt out	Replace the third brake light    Op. 5550D17 THIRD BRAKE LIGHT - R R
2	BRAKE STATUS PEDAL CHECK	All OK	Problems encountered	Operation
	Connect the diagnostic equipment and, in the PARAMETERS ambient, check the "BRAKE PEDAL STATUS" parameter. Press the brake pedal and read "PRESSED". Release the brake pedal and read "RELEASED"	Move on to Step 5	Incorrect reading	Move on to Step 4
3	BRAKE PEDAL SWITCH CHECK	All OK	Problems encountered	Operation
	Check that the brake pedal switch is working properly by carrying out test 5550DA    See Test 5550D BRAKE AND REVERSING LIGHTS	Move on to Step 4	Switch faulty	Replace the brake pedal switch    Op. 5550D10 BRAKE LIGHT SWITCH - R+RMove on to Step 5
4	BRAKE PEDAL SWITCH ADJUSTMENT	All OK	Problems encountered	Operation
	Adjust the brake pedal switch so that when the pedal is completely depressed it does not reach the last notch, with reference to Service News 3350 E 000 AA N°33 03 02	Move on to Step 5	.	-
5	CHECK ON CORRECT OPERATION	All OK	Problems encountered	Operation
	Delete the errors using the diagnostic equipment.Carry out the road test    See Test 3340OA A.B.S. SYSTEM ACTUATION CHECKto ensure that the control unit checks whether there are any errors still present.Return to the workshop and check that the fault is no longer present using the diagnostic equipment	End of diagnosis	The fault persists	Move on to Step 1