Vauxhall Workshop Service and Repair Manuals

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

28

A/C CUTOFF REQ.

Only 25 DT diesel engine:

Engine running at idle speed, operating temperature

87, 88

21

AC switch ON

ACTIVE  12V

AC operating

Note:

Vehicle interior should be warm, set thermostat to COLD, set ventilation to full load;

Compressor switches on automatically;

In some vehicles it is necessary to accelerate briefly or wait for a while until the compressor switches on

Vehicle on incline

Select "Winter Program"

From a standstill, accelerate with throttle valve position greater than 80 %

INACTIVE 0V

AC not operating

Note:

In extreme driving situations, the transmission control unit recognizes the engine's need for full torque which is available when the AC is OFF. The AC is switched off.

All other engines, or vehicles without AC:

NOT USED