P265A
B Rocker Arm Actuator Position Sensor Circuit Bank 1
The position sensor that confirms the B rocker arm switching state on bank 1 returns no usable signal.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Open sensor elementCommon
- Corroded sensor connectorPossible
Parts involved
- Rocker Arm Position Sensor B B1
- Wiring Harness
P265A is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.