OBD Guide

P2B55

B Camshaft Profile Actuator B Control Stuck On Bank 1

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • A characteristic knock from the timing belt area

Causes

  • Valve timing actuator jamming
  • Contaminated or poor quality engine oil
  • VVT solenoid valve malfunction
  • Problems with wiring to the actuator
  • Mechanical damage in the timing system

How to Fix

  1. Check the condition and level of the engine oil
  2. Diagnose the operation of the VVT solenoid valve
  3. Check the actuator control circuit
  4. Replace the valve timing actuator if necessary
  5. Clean or replace oil and filter

Related codes

Error P2B55 by Vehicle Brand