Vauxhall Workshop Service and Repair Manuals

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

18

SEC. AIR PUMP REL

Engine running at idle speed, cold

ACTIVE   0V

46, 47

44, 41

Engine running at idle speed, operating temperature

(coolant temperatures above about 35 °C / 95 °F)

INACTIVE 12V

Alternative check if the engine is already warm:

Engine warm

Disconnect coolant temperature sensor P 30

ACTIVE   0V

Note:

When the coolant temperature sensor is disconnected, a coolant temperature of - 35 °C / - 31 °F is suggested to the control unit. This causes a trouble code to be set when the engine is switched off. This must then be deleted on the next engine start.