Above limit
Diagnostic conditions
- Engine running
Possible cause of fault
- Oxygen sensor faulty (heating)
- Short circuit to B+
- DME control module faulty
Affected terminals
DME control module connector II, pin 7 and oxygen sensor jack, bank 1, pin 2
Diagnosisltroubleshooting
NOTE:
- Do not use contact spray on the oxygen sensor plug connections as this may cause irreparable damage to the wiring (contamination of the oxygen sensor via the reference air channel).