OBD-II code · Powertrain (generic, extended)
P266A A Rocker Arm Actuator Position Sensor Circuit Bank 2
The position sensor that confirms the A rocker arm switching state on bank 2 returns no usable signal.
Is it safe to drive with P266A?
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 B2, Wiring Harness
Related codes
- P264AA Rocker Arm Actuator Position Sensor Circuit Bank 1
- P265AB Rocker Arm Actuator Position Sensor Circuit Bank 1
- P267AB Rocker Arm Actuator Position Sensor Circuit Bank 2
- P2667Fuel Shutoff Valve B Control Circuit High
- P2668Fuel Mode Indicator Lamp Control Circuit
- P2669Actuator Supply Voltage B Circuit / Open
- P266BA Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2
- P266CA Rocker Arm Actuator Position Sensor Circuit Low Bank 2
- P266DA Rocker Arm Actuator Position Sensor Circuit High Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.