OBD II Fault Code

  • OBD II P278F

    OBD-II Code Transmission may not shift properly is defined as a Clutch "B" Adaptive Learning at Limit

    The Transmission Control Module (TCM) goes through a learning process to properly shift the transmission based on the driver's driving habits. If the Transmission can not properly adapt to what is being requested, code P278F is stored.

    Transmission may not shift properly Symptoms

    • Increased fuel consumption
    • Transmission may not shift properly

    Common Problems That Trigger the P278F Code

    • Internal transmission failure
    • Transmission Control Module (TCM) failure
    • Transmission fluid level is low

    Common Repairs Needed for the P278F Code

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