O2 Sensor Circuit
Diagnostic conditions
- Battery positive voltage between 10 V and 16 V
- Oxygen sensor heating switched on for at least 120 seconds
- Exhaust temperature between 200°C and 800°C
Possible cause of fault
- Oxygen sensor faulty
Affected pins
DME control module connector II, pin 8 and oxygen sensor jack, bank 2, pin 3
DME control module connector II, pin 14 and oxygen sensor jack, bank 2, pin 4