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Vauxhall Workshop Service and Repair Manuals

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C-024 Crankshaft Sensor Circuit > < C-022 O2 Sensor Circuit (Behind Catalyst)

Astra H

C-023 - Exhaust Control System

Test

Work Order Description

Nominal Value
T001

Check: Component
  • Check the following component for tightness and proper installation:
    Exhaust system
    and
    Catalytic Converter

Note:

Check catalyst for mechanical damage by tapping against the shroud. Perform visual check of catalyst shroud for thermal overheating (red-violet discoloration).

Check the catalytic converter for mechanical damages

(Tears in the outer case, damages of the internal catalyst bed)

System okay?
Yes: No:


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    B57 Sensor - Oxygen, Catalytic Converter Check
    or
    B166 Sensor - Oxygen, Mixture Control, Heated

Note:

The replacement of the components must be done in the listed order.

The system must be checked for proper operation after every replacement.
E002 Result: Defective Component
  • Repair the concerned mechanical component





C-024 Crankshaft Sensor Circuit > < C-022 O2 Sensor Circuit (Behind Catalyst)