P0872 Code - Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low

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

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    fault code Administrator Staff Member

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    What does P0872 Mean?

    OBD-II Code Transmission may not shift properly is defined as a Transmission Fluid Pressure Sensor/Switch "C" Circuit Low

    The Transmission Fluid Pressure Sensor tells the Transmission control module (TCM) the pressure of the fluid going through the transmission. When the TCM detects an incorrect signal from the Transmission Pressure Sensor, it sends a signal to the engine control module (PCM) to set code P0872.

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    What are the common causes of P0872 ?

    A transmission leak causing a low fluid condition is one cause of a P0872 trouble code. Additional causes include a defective high pressure pump, a malfunctioning transmission temperature sensor, an overheating engine, a slipping or malfunctioning transmission, or a faulty PCM.

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    How do you troubleshoot P0872 ?

    Deactivation of cylinders is achieved by releasing a synchroniser pin that normally interlocks the cam follower and rocker arms. P0872 code resolves the synchroniser pin is released using hydraulic pressure which is controlled by a dedicated solenoid.

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