OBD-II code · Powertrain (generic, extended)

P264D A Rocker Arm Actuator Position Sensor Circuit High Bank 1

The position sensor signal is above the upper diagnostic threshold. Common causes are an open sensor or a short to the 5 V reference.

Is it safe to drive with P264D?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyOpen sensor element
  • PossibleSignal wire shorted to the 5 V reference
  • Less likelyConnector pins corroded - high contact resistance

Repair at a glance

Difficulty
Medium
DIY friendly
Best left to a mechanic
Typical labour
0.8–3 h
Emissions test
Usually unaffected
Parts involved
Rocker Arm Position Sensor A B1, Wiring Harness

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.