OBD Guide

P264A

A Rocker Arm Actuator Position Sensor Circuit Bank 1

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Deterioration in acceleration dynamics
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Loss of engine power

Causes

  • Malfunction of the rocker actuator position sensor
  • Open or short circuit in the sensor circuit
  • Problems with the wiring harness or connectors
  • Rocker arm actuator malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check sensor connectors and connections
  3. Test the rocker arm actuator position sensor
  4. Replace sensor if necessary
  5. Check the operation of the rocker arm actuator

Related codes

Error P264A by Vehicle Brand