Vauxhall Workshop Service and Repair Manuals

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

03

IGNITION STATUS

Ignition OFF

Ignition ON

OFF      0V

ON      12V

-

4

8-pin plug

Notes on Trouble-shooting:

Nominal Value:

Cause of fault:

(If nominal value is not attained)

If fuse F 15 OK:

·   Ignition OFF, disconnect battery negative terminal

·   Release wiring harness connection X1 and disconnect

·   Connect battery negative terminal

·   Ignition ON

·   Using multimeter, measure voltage at wiring harness coupling X1/ Ter. 49 to ground

higher than 11.5 V

·   Lead interruption between F15 and X1/ Ter. 49

·   Using multimeter, measure resistance at bushing of X1/ Ter. 49 to ground

approx. 180 W

·   Lead interruption between X1/ Ter. 49 and control unit K103

·   Control unit K103 defective

If fuse F15 is not okay:

·   Ignition OFF

·   Release wiring harness connection X1 and disconnect

·   Replace F15

·   Ignition ON

F15 OK

·   Short circuit to ground between F15 and wiring harness coupling X1

·   Short circuit to ground to another consumer connected to F15 (see Omega-B circuit diagrams)

·   Short circuit to ground in body wiring harness between X1/ Ter. 49 and control unit K103 or another consumer connected to X1/ Ter. 49 (see Omega-B circuit diagrams)

Further possible fault:

·   K103 defective