Vauxhall Workshop Service and Repair Manuals

Test	TECH 1	Notes	Nominal Values	Possible
Step	Display			Trouble
No.				Codes
03	MAP SENSOR	Ignition ON	0.9 to 1.1 bar/	33, 34
			4.7 to 5.1 V
			(values are
		Engine idling	speed dependent)
			0.20 to 0.35 bar /
			0.45 to 1.29 V

 

 

Trouble-shooting:                                      Nominal Value:                     Cause of Trouble:

 

Engine idling

 

· Remove MAP SENSOR                                          0.1 bar / 0 V                                      · Short circuit between control unit lead

plug P 23                                                                                                                                    K 84/Ter. 22 and plug P 23/Ter. B with

lead K 84/Ter. 25 to plug P 23/Ter. C

 

· Control unit defective

 

· Short circuit lead Ter. 22 and                                 0.9 to 1.1 bar /                                   · Short circuit between lead K 84/Ter. 25

Ter. 25 on MAP SENSOR plug                             4.7 to 5.1 V                                            and plug P 23/Ter. C or K 84/Ter. 22

Ter. B and C                                                                                                                             and plug P 23/Ter. B with ground lead

K 84/Ter. 13 to plug P 23/Ter. A

 

Important:

When trouble-shooting is finished the control unit Trouble Code memory is to be deleted with TECH 1 in mode F4.

 

 

Trouble-shooting:                                      Nominal Value:                     Cause of Trouble:

 

· Lead interruption K 84/Ter. 22 to plug P 23/Ter. B

· Lead interruption K 84/Ter. 25 to plug P 23/Ter. C

· Control unit defective

 

· Check continuity from plug

K 84/Ter. 13 to plug P 23/Ter. A

with Multimeter MKM-587-A                                   0 to 0.2 W                                           · Lead interruption

 

· Connect Vacuum Pump MKM-667 to                    See following                                   · MAP SENSOR P 23 defective

MAP SENSOR P 23. Adjust vacuum                     table

according to nominal value, turn

ignition off and on again after each                                                                                   · Vacuum hose to

change in pressure                                                                                                                  MAP SENSOR P 23 leaking

or blocked

 

Vacuum Pump MKM-667	TECH 1 Display
Adjust following values	Absolute	Voltage
with the vacuum pump	Pressure
(vacuum pump scale)
0.2    bar	0.8    bar	3.56 to 3.86 V
0.6    bar	0.4    bar	1.52 to 1.68 V
0.85  bar	0.15 bar	0.12 to 0.38 V