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Our automotive experts have put together the following information about the P0579 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 P0579 code.

OBD II Fault Code

  • OBD II P0579

    OBD-II Code Cruise control will not operate is defined as a Cruise Control Multi-Function Input "A" Circuit Range/Performance

    The Cruise Control System is controlled by the Body Control Module. The Body Control Module monitors driver inputs to the cruise control system and sends that request to the engine computer (PCM). If the body control module detects an invalid input from the cruise control switches, code P0579 will be set.

    Cruise control will not operate Symptoms

    • Cruise control will not operate

    Common Problems That Trigger the P0579 Code

    • Body Control Module (BCM) failure
    • Cruise control master switch failure
    • Wiring issue
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