P0595 Code - Speed Control Servo Control Circuit Low

Discussion in 'P - Powetrain Codes' started by fault code, Jan 28, 2018.

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    fault code Administrator Staff Member

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    What Does P0595 Mean?

    OBD-II Code Cruise control will not operate is defined as a Cruise Control Servo Control Circuit Low

    The cruise control servo is electronically controlled by the engine computer (PCM). This servo controls the vacuum that activates and deactivates the cruise control system. If the Cruise Control Servo does not operate as requested by the PCM, code P0595 will set.

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    What are the common causes of P0595 ?

    A P0595 code can have more than one cause, but the most common are:
    • Faulty cruise control servo solenoid
    • Faulty cruise control switch
    • Faulty cruise control servo
    • Faulty cruise control circuit wiring
    • Faulty cruise control connectors
    • Faulty fuse
    • What are the sym
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    How do you troubleshoot P0595 ?

    With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for.

    Searches related to P0595 Code - Speed Control Servo Control Circuit Low
    • P0595
    • P05956
     

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