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Our automotive experts have put together the following information about the P001B diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P001B code.

OBD II Fault Code

  • OBD II P001B

    OBD-II Code Decreased engine performance is defined as a "A" Camshaft Profile Control Circuit Low

    Newer engines have valves that are electro-hydraulically controlled instead of being driven by a timing belt or chain. This improves fuel efficiency and engine performance. When the engine control module (PCM) detects that the valves are not being operated as desired, it will set code P001B.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P001B Code

    • Camshaft variable timing solenoid failure
    • Engine oil level is too low
    • The engine oil does not meet the manufacturer's requirements
    • Variable valve timing actuator failure

    Common Repairs Needed for the P001B Code

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