Vauxhall Workshop Service and Repair Manuals

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

48

TORQUE CONTROL

Vehicles with AT:

Vehicle travelling at approx. 50 km/h (30 mph), constant speed

INACTIVE

75, 76

E10

Automatic transmission shifts

ACTIVE

Vehicles with MT:

NOT IN USE

Notes on Trouble-shooting:

Nominal Value:

Cause of fault:

(If nominal value is not attained)

·   Ignition OFF

·   Disconnect wiring harness plug:

     K85 AT control unit

·   Ignition ON

·   Using multimeter, measure voltage

from:       K85 wiring harness plug for AT control unit Ter. 13

to:           ground

·   TECH 1 data list no. 48 TORQUE CONTROL

higher than 11 V

INACTIVE

·   Short circuit to ground or circuit interruption

from:       K85 wiring harness plug for AT control unit Ter. 13

to:           K57 wiring harness plug for engine control unit Ter. E10

·   K57 engine control unit defective

·   Bridge wiring harness plug

from:       K85 wiring harness plug for AT control unit Ter. 13

to:           ground

·   TECH 1 data list no. 48 TORQUE CONTROL

ACTIVE

·   Short circuit to voltage

from:       K85 wiring harness plug for AT control unit Ter. 13

to:           K57 wiring harness plug for engine control unit Ter. E10

·   K57 engine control unit defective

Note:

The TECH 1 display is only updated again after ignition OFF, ignition ON

If nominal values are attained

·   K85 AT control unit defective