Vauxhall Workshop Service and Repair Manuals

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Ter-

minal

15

TPS SIGNAL

AF 14 / 20 automatic transmission with 16 SV, 18 SV engine (EI Plus control unit) or with C 20 NE, 20 NE engine (Motronic ML 4.1; Model Year '89)

Ignition ON

Engine OFF

Apply parking brake

Engine throttle valve CLOSED

(accelerator pedal in idle position)

Engine throttle valve OPEN

(accelerator pedal fully depressed)

Note:

The throttle valve potentiometer is connected directly to the transmission control unit, i.e. the transmission control unit receives information about the throttle valve position directly from the potentiometer.

Continued overleaf

greater than 0.5 V

lower than 4.6 V

21, 22

15, 32,

35

15

TPS SIGNAL

(continued)

all other configurations

Ignition ON

Note:

The throttle valve potentiometer is connected to the corresponding engine control unit. The automatic transmission receives a prepared signal from the engine control unit, proportional to the throttle valve position.

See test step 17 for the configurations in which TECH 1 displays "NOT USED"

NOT USED

21, 22

15, 32,

35