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OBD II Fault Code

  • OBD II P0923

    OBD-II Code Transmission may not shift properly is defined as a Gear Shift Forward Actuator Circuit High

    The Transmission is responsible for converting the power produced by the engine to movement of the vehicle. The transmission has its own control module (TCM). The TCM uses solenoids to control the fluid pressure that activates the different gears inside the transmission. If the TCM sees an implausible signal from the shift solenoid, code P0923 will be set.

    Transmission may not shift properly Symptoms

    • Increased fuel consumption
    • Transmission may not shift properly

    Common Problems That Trigger the P0923 Code

    • Gear shift actuator assembly failure
    • Transmission Control Module (TCM) failure
    • Wiring issue
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