Vauxhall Workshop Service and Repair Manuals

C-11, return pump relay circuit  

C-11, return pump relay circuit
Test	Work order description		Nominal value
T01	Check: Supply voltage of the pump relay
	•  Ignition OFF   •  Disconnect wiring harness plug from:		11.5...13.5 V
	K50 ABS control unit
	•  Measure voltage between following terminals:
	K50 ABS control unit     Wiring harness plug terminal 17 and 18     &     Ground
	Yes:   T02	No:   E01
T02	Check: control unit ground connection
	•  Measure voltage between following terminals:		11.5...13.5 V
	K50 ABS control unit     Wiring harness plug terminal 17 and 18     &     K50 ABS control unit     Wiring harness plug terminal 19
	Yes:   T03	No:   E02
T03	Check: Pump motor ground connection
	•  Measure voltage between following terminals:		11.5...13.5 V
	K50 ABS control unit     Wiring harness plug terminal 17 and 18     &     K50 ABS control unit     Wiring harness plug terminal 16
	Yes:   T04	No:   E03
T04	Check: pump motor operation
	•  Ignition OFF   •  Wiring harness plug connect from:		OK
	K50 ABS control unit
	•  Ignition ON   •  Select using TECH1:
	F5:ACTUATOR TEST NO. T01     RET.PUMP RELAY
	Yes:   E05	No:   E04

C-11, return pump relay circuit
No.	Result
E01	•  Short circuit/ circuit interruption in the wiring harness:
	K50 ABS control unit     Wiring harness plug terminal 17 and 18     &     Battery G1     Terminal 30
	or
	•  Defective components, LHD vehicles only:
	Instrument panel X6 & front body 45P     Wiring harness plug terminal 78 and 79
E02	•  Short circuit/ circuit interruption in the wiring harness:
	K50 ABS control unit     Wiring harness plug terminal 19     &     Battery G1     Terminal 31
	or
	•  Defective components:
	Instrument panel X6 & front body 45P     Wiring harness plug terminal 52
E03	•  Circuit interruption in the wiring harness:
	K50 ABS control unit     Wiring harness plug terminal 16     &     Battery G1     Terminal 31
E04	•  Defective components:
	K50 ABS control unit
E05	•  If further fault codes stored, fault elimination in the corresponding diagnostic trees
	Test drive vehicle, read fault memory