P0869 Code - Transmission Fluid Pressure High

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

  1. fault code

    fault code Administrator Staff Member

    May 11, 2017
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    What does P0869 Mean?

    This code indicates that the PCM has detected a transmission fluid pressure which is not within a predetermined limit. When this occurs, a code is stored and a malfunction indicator illuminated. Some vehicles will also enter “limp-in” mode

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    What are the common causes of P0869 ?
    • Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
    • Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
    • A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

    How do you troubleshoot P0869 ?

    The engine system, in conjuction with the engine control module (ECM)/powertrain control module (PCM), activates the P0869 code solenoid valve to control oil pressure to the engine mechanism that is installed in the valve system to switch valve timing between Low and High.If the engine solenoid valve has an open or short circuit, a DTC is stored.

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