OBD II Fault Code

  • OBD II P071B

    OBD-II Code Towing mode will be disabled is defined as a Transmission Mode Switch "A" Circuit Low

    The Tow/Haul Switch enhances the transmissions shifting for towing. If the switch fails to operate properly, code P071B will set and towing mode will be disabled. On most vehicles this switch is part of the shift lever.

    Towing mode will be disabled Symptoms

    • Towing mode will be disabled

    Common Problems That Trigger the P071B Code

    • Shift lever assembly failure
    • Transmission Control Module (TCM) failure
    • Wiring issue

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