Centre brake light (third brake light") not working

Fault diagnosisCentre brake light (third brake light") not working

CENTRE BRAKE LIGHT (THIRD BRAKE LIGHT") NOT WORKING

The third brake light does not work when the brake pedal is pressed with the key ON.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
1	INDIVIDUAL LIGHT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the individual bulbs and associated bulb holder;	Move on to Step	1. Bulbs damaged/inefficient	1. Change the bulbs Op. 5550D17 THIRD BRAKE LIGHT - R R
		Move on to Step	2. Bulb holder unit fault	2. Repair or replace the exterior tail-light
2	BRAKE LIGHT ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the following, in order: Brake light fuse; Connections between battey, ignition switch, underfacia junction unit and brake light switch; connections between brake light switch and bulbs; bulb earth	Move on to Step	1. Component defective	1. Replace defective component (in the case of a fuse, find out what caused it to blow).
		Move on to Step	2. Connections interrupted	2. Renew the connections See E2021 BRAKE LIGHTS
3	BRAKE PEDAL SWITCH CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the brake pedal switch is correctly fastened and working properly See E2021 BRAKE LIGHTS	Move on to Step	1. Switch fastening/setting incorrect	1. Adjust the switch
		Move on to Step	2. Brake pedal switch faulty	2. Replace the switch
4	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present

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