Powertrain
generic / SAE
P266D
A Rocker Arm Actuator Position Sensor Circuit High Bank 2
The position sensor signal for actuator A on bank 2 is above the upper diagnostic threshold. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / 6D
Possible causes
- Open sensor element high
- Signal wire shorted to the 5 V reference medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–800 €
- Estimated time: 0.8–3 h
- Component: rocker arm position sensor a b2
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012