Vauxhall Workshop Service and Repair Manuals

Trouble

Code

Information Sensor

Cause of Fault

Remedy in

F0:DATA LIST

No.

Trouble Code Storage when ...

Remarks

38

O2 SENSOR

CIRCUIT VOLTAGE

LOW

36, 37, 38, 39, 40

·    Oxygen sensor voltage less than 90 mV for longer than 2.5 s

     (short circuit to ground)

The trouble code is stored if

(conditions must be fulfilled consecutively):

1.)   Coolant temperature higher than 70 °C/158 °F

2.)   Condition 1.) fulfilled for 3 min

3.)   Load signal greater than 1.5 ms

4.)   After conditions 1.) to 3.) are fulfilled, waiting period of 5 s elapsed

5.)   Trouble code 73 or 74 not recognized

Replacement value:

The control unit takes a replacement value of 450 mV.

The oxygen sensor control is switched off.