I16 CENTRE BRAKE LIGHT ("THIRD BRAKE LIGHT") NOT WORKING - Alfa - 156 - eLearn

When the brake pedal is pressed, with the ignition on, the central stop light ("third stop light") does not work.

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check the operation of the side stop lights	Continue to Step 1	The side stop lights are not working	See table I15
1	CHECK INDIVIDUAL LIGHTS	All OK	Problems met	Operation
	Check the condition of the individual ten bulbs and complete bulb holder assembly	Continue to Step 2	Bulbs damaged	Replace bulbs
		Continue to Step 2	Bulb holder faulty	Repair or replace the third stop light Op. 5050D17
2	CHECK STOP LIGHTS ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check, in order: stop lights fuse (services) connections between junction unit and brake pedal switch connections between junction unit and bulb bulb earth ( See E2021 BRAKE LIGHTS "Stop lights")	Continue to Step 3	Component defective	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 3	Connections broken	Restore the connections (
3	BRAKE PEDAL SWITCH CHECK	All OK	Problems met	Operation
	Check that the brake pedal switch is fitted correctly and working ( See E2021 BRAKE LIGHTS ).	Continue to Step 4	Brake pedal switch faulty	Repair or replace the brake pedal switch Op. 5550D10
4	CHECK CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'