Vauxhall Workshop Service and Repair Manuals

No.	TECH 1	Checking Conditions	Nominal Values	Trouble	Terminal
	Display			Codes
03	MAP SENSOR	Ignition ON	0.9 to 1.1 bar	33, 34	C 14, C 11/
			4.2 to 5.3 V		A 11
			altitude-dependent
		Engine at idle speed,	0.25 to 0.42 bar
		operating temperature	0.8 to 1.7 V

 

 

Trouble-shooting:                                 Nominal Value:                     Cause of Fault:

(If nominal value is not attained)

 

· Ignition OFF.                                                       0.1 bar                                                · Short circuit in wiring harness:

Remove plug from throttle valve                                                                                - control unit K 100 Ter. C 14 (+ 5 V) to

potentiometer P 34.                                                                                                           intake manifold pressure sensor P 23 Ter. C to

- Remove plug from intake manifold                                                                                 control unit K 100 Ter. C 11 (input) to

pressure sensor P 23.                                                                                                       intake manifold pressure sensor P 23 Ter. B

Ignition ON.

 

· Ignition OFF.                                                       4.7 to 5.1 V                                        · Short circuit in wiring harness:

Short-circuit cables C 11 and C 14 at                                                                           - control unit K 100 Ter. A 11 (ground) to

intake manifold pressure sensor P 23                                                                            intake manifold pressure sensor P 23 Ter. A to

Ter. C to P 23 Ter. B.                                                                                                       control unit K 100 Ter. C 11 (input) to

Ignition ON                                                                                                                        intake manifold pressure sensor P 23 Ter. B

 

· Lead interruption:

Control unit K 100 Ter. C 11 (input) to intake manifold pressure sensor P 23 Ter. B or

- Control unit K 100 Ter. C 14 (+ 5 V) to intake manifold pressure sensor P 23 Ter. C

 

 

· Check line from control unit                             Passage way                                     · Lead interruption

K 100 Ter. A 11 to pressure

sensor plug P 23 Ter. A with

multimeter.

 

· Reconnect plugs P 34 and P 23.

Connect Vacuum Pump

MKM-667 to hose from

P 23.

Ignition OFF. Ignition ON.

 

 

 

 

· Control unit defective

 

· Intake manifold pressure sensor defective

- Vacuum hose leaky or blocked.

 

· Vacuum hose tangled and sealed off.

- Replace vacuum hose with hose made from different material.