O2 Sensor Circuit Malfunction Bank1 Sensor2 on BMW
BMW
Verified1 source
1 source
- Official data (NHTSA)official_feed
What P0136 means
Safe to drive short-term
The downstream oxygen sensor circuit on bank 1 is reading outside its expected range.
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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- O2 Sensor Circuit Malfunction Bank1 Sensor2
What to check first
- Scan-tool live downstream O2 data
- Inspect wiring and connector
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