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OBD II Fault Code

  • OBD II P279F

    OBD-II Code 4-wheel drive system is disabled is defined as a Four Wheel Drive (4WD) Range Signal Circuit Low

    The Four Wheel Drive Switch allows the driver to shift from 2-wheel drive to 4-wheel Low or 4-wheel high, depending on driving conditions. If the 4-Wheel Drive Switch sends back in implausible signal, code P279F will be set.

    4-wheel drive system is disabled Symptoms

    • 4-wheel drive system is disabled

    Common Problems That Trigger the P279F Code

    • 4-wheel drive switch failure
    • Transfer case internal failure
    • Transmission Control Module (TCM) failure
    • Wiring issue
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