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Our automotive experts have put together the following information about the P074B 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 P074B code.

OBD II Fault Code

  • OBD II P074B

    OBD-II Code Transmission may not shift properly is defined as a Unable To Engage Gear 3

    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 detects that the transmission is not going into third gear, it will set code P074B.

    Transmission may not shift properly Symptoms

    • Transmission may not shift properly

    Common Problems That Trigger the P074B Code

    • Internal transmission failure
    • Transmission Control Module (TCM) failure
    • Transmission fluid level is low
    • Transmission solenoid failure
    • Wiring issue

    Common Repairs Needed for the P074B Code

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