OBD Guide

P266B

A Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2

P266B is an OBD-II diagnostic trouble code meaning: A Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2. Common causes: malfunction of the rocker actuator position sensor, open or short circuit in the sensor circuit. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation
  • Noises from the timing belt area

Causes

  • Malfunction of the rocker actuator position sensor
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Rocker arm actuator malfunction
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect the sensor connectors for corrosion
  3. Check the resistance of the position sensor
  4. Replace the faulty sensor if necessary
  5. Check the operation of the rocker arm actuator

Related codes

Error P266B by Vehicle Brand

FAQ

What does the P266B code mean?

P266B is an OBD-II diagnostic trouble code that indicates: A Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2

What causes a P266B error code?

The most common causes of P266B include: Malfunction of the rocker actuator position sensor; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Rocker arm actuator malfunction.

How do I fix a P266B diagnostic trouble code?

To fix P266B: Check the integrity of the sensor circuit. Inspect the sensor connectors for corrosion. Check the resistance of the position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P266B?

Yes, but get it checked soon

How much does it cost to fix P266B?

The estimated repair cost for P266B is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat