Vauxhall Workshop Service and Repair Manuals

C-04, brake light circuit  

C-04, brake light circuit
Test	Work order description		Nominal value
T01	Check: Function of brake lights
	•  Ignition ON   •  Note brake light switch   •  Actuate brake pedal		Do not light   Do light
	Yes:   T02	No:   E01
T02	Check: Circuit - interruption of the signal circuit
	•  Ignition OFF   •  Disconnect wiring harness plug from:		less than 1 Ω
	K50 ABS control unit
	•  Measure resistance between following terminals:
	K50 ABS control unit     Wiring harness plug terminal 14     &     Brake light switch S8     Wiring harness plug (black/yellow)
	Yes:   E04	No:   T03
T03	Check: Circuit - interruption of the signal circuit
	•  Disconnect wiring harness plug from:		less than 1 Ω
	Instrument panel X6 & front body 45P
	•  Measure resistance between following terminals:
	K50 ABS control unit     Wiring harness plug terminal 14     &     Instrument panel X6 & front body 45P     Wiring harness plug terminal 64 (plug pin)
	Yes:   E03	No:   E02

C-04, brake light circuit
No.	Result
E01	•  Reference to other function groups:   •  Defective components:
	Brake light switch S8
	or
	Fuse F21 terminal 15
E02	•  Circuit interruption in the wiring harness:
	K50 ABS control unit     Wiring harness plug terminal 14     &     Instrument panel X6 & front body 45P     Wiring harness plug terminal 64
E03	•  Circuit interruption in the wiring harness:
	Instrument panel X6 & front body 45P     Wiring harness plug terminal 64     &     Brake light switch S8     Wiring harness plug terminal (black/yellow)
E04	•  Defective components:
	K50 ABS control unit