Vauxhall Workshop Service and Repair Manuals

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

13

PARK / NEUTRAL SW.

Ignition On

Vehicles with MT:

Vehicles with AT:

Selector lever in "P" "N"

Selector lever in "R" "D" "3" "2" "1"

P- N    0 V

P- N    0 V

R- D- 3 -

2 - 1       12 V

-

30, 19

Note:   On vehicles with MT, Ter. 30 of control unit K69 is routed to ground. In Omega - B vehicles with AT, Ter. 30 is connected to AT control unit K85 / Ter. 1; in Vectra / Cavalier and Calibra vehicles with AT, Ter. 30 of the control unit is connected with + battery voltage (via starter switch S1 or - if fitted - via K3 of the anti - theft warning system).

Notes on Trouble - shooting:

Nominal Value:

Cause of Fault:

Vehicles with MT:

·     Disconnect plug from control unit K69.

       Using ohmmeter, measure from control unit plug Ter. 30 to ground for passage

Vehicles with AT:

·     Omega - B:

       Ignition Off. Disconnect wiring harness plug from control unit K69 and wiring harness plug from X4

0 W

·     Lead interruption

·     Poor ground connection (corrosion)

·     Control unit K69 defective

       Using multimeter, check lead connection between wiring harness plug from K69 / Ter. 30 and wiring harness plug X4 / Ter. 18

       - for passage,

       - for short circuit to ground,

       - for short circuit to + battery voltage

Further possible faults:

Passage

¥ W

0 V

·     Lead interruption, short circuit to ground or to + battery voltage in lead connection between control unit K69 / Ter. 30 and wiring harness plug connection X4 / Ter. 18

·     Lead connection between AT control unit K85 / Ter. l and wiring harness plug connection X 4 / Ter. 1 8 faulty

·     Fault in AT system

·     SIMTEC control unit K69 defective

Vectra / Cavalier, Calibre:

·     Ignition Off. Disconnect wiring harness plug from control unit K 69. Ignition On.

       Measure voltage at wiring harness plug K 69 / Ter. 30

       - with selector lever in "P" "N"

       - with selector lever in "R" "D" "3" "2" "1"

Further possible faults:

0 V

12 V

·     Short circuit to + battery voltage in lead between wiring harness plug K69 / Ter. 30 and wiring plug connection X9 / Ter. 4

·     Lead connection from control unit K69 / Ter. 30 to wiring plug connection X9 / Ter. 4 has interruption or short circuit to ground

·     X9 / Ter. 4 does not receive + battery voltage from starter switch S1 (via K3 of anti - theft warning system, if fitted)

·     Fault in anti - theft warning system

·     SIMTEC control unit K69 defective