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O2 Sensor Circuit No Activity Detected

Diagnostic conditions

Exhaust temperature between 250°C and 750°C
Battery positive voltage between 10 V and 16 V
Time elapsed after engine start-up greater than 200 seconds
Oxygen sensor heating switched on for at least 120 seconds

Possible cause of fault

Loose contact or corrosion in connector
Open circuit in the oxygen sensor signal wire
Open circuit in the oxygen sensor ground wire
Oxygen sensor faulty
DME control module faulty

Affected terminals

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