P0161
P0161
02 Sensor Heater Circuit
Signal implausible
Diagnostic conditions
- Exhaust temperature between 300 锟斤拷C and 600 锟斤拷C
- Battery positive voltage between 10 V and 16 V
Possible cause of fault
- Corrosion in connector
- Oxygen sensor faulty
Affected terminals
DME control module connector II, pin 1 and oxygen sensor jack, bank 2, pin 2
Diagnosis/troubleshooting
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).
Open circuit
Diagnostic conditions
- Engine running
Possible cause of fault
- Resistance of oxygen sensor heating too high
- Open circuit
Affected terminals
DME control module connector II, pin 1 and oxygen sensor jack, bank 2, pin 2
Diagnosis/troubleshooting
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).