OBD-II code · Powertrain (generic, extended)
P264A A Rocker Arm Actuator Position Sensor Circuit Bank 1
The position sensor that confirms the A rocker arm switching state on bank 1 returns no usable signal. Closed-loop control of valve lift cannot verify the state.
Is it safe to drive with P264A?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyOpen sensor element
- PossibleCorroded sensor connector
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Rocker Arm Position Sensor A B1, Wiring Harness
Related codes
- P265AB Rocker Arm Actuator Position Sensor Circuit Bank 1
- P266AA Rocker Arm Actuator Position Sensor Circuit Bank 2
- P267AB Rocker Arm Actuator Position Sensor Circuit Bank 2
- P2647A Rocker Arm Actuator System Stuck On Bank 1
- P2648A Rocker Arm Actuator Control Circuit Low Bank 1
- P2649A Rocker Arm Actuator Control Circuit High Bank 1
- P264BA Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 1
- P264CA Rocker Arm Actuator Position Sensor Circuit Low Bank 1
- P264DA Rocker Arm Actuator Position Sensor Circuit High Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.