P0755 Code - Shift Solenoid 'B' Malfunction

Discussion in 'P - Powetrain Codes' started by fault code, Mar 20, 2018.

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  1. fault code

    fault code Administrator Staff Member

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    What does P0755 Mean?

    Shift solenoid valve B is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position.

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    What are the common causes of P0755 ?

    • A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
    • Faulty IMRC actuator relay (if equipped)
    • Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)


    How do you troubleshoot P0755 ?

    The most common repair for the P0755 code is replacement of the shift solenoid circuit. However, other repairs may include:
    • Replacing a failed shift solenoid
    • Topping off low fluid
    • Changing burned, dirty fluid
    • Replacing or repairing a damaged wiring harness

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