OBD-II code · Powertrain (generic, extended)
P2C65 O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3
The wide-band oxygen sensor on bank 1 sensor 3 reports a out of range during deceleration condition. Lambda regulation accuracy is impaired.
Is it safe to drive with P2C65?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor unable to follow oxygen spike during fuel cut
- PossibleSensor response time degraded with age
Symptoms
- Check engine light on
- Increased fuel consumption
- Possible rough idle or hesitation
- Failed emissions test
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Oxygen Sensor B1s3, Wiring Harness, Ecm
Related codes
- P232FO2 Sensor Out of Range During Deceleration Bank 1 Sensor 2
- P2379O2 Sensor Out of Range During Deceleration Bank 2 Sensor 2
- P239EO2 Sensor Out of Range During Deceleration Bank 1 Sensor 2
- P239FO2 Sensor Out of Range During Deceleration Bank 2 Sensor 2
- P2C62O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 3
- P2C63O2 Sensor Pumping Current Trim Circuit Low Bank 1 Sensor 3
- P2C64O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 3
- P2C66Hybrid/EV Electronics Coolant Pump A Underspeed
- P2C67Hybrid/EV Electronics Coolant Pump A Overspeed
- P2C68Hybrid/EV Electronics Coolant Pump A Stuck/Stalled
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.