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Our automotive experts have put together the following information about the P0A15 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 P0A15 code.

OBD II Fault Code

  • OBD II P0A15

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Engine Mount "A" Control Circuit Low

    Engine Mounts secure the engine to the body of the vehicle. Usually this is just a rubber dampener. On some newer vehicles, electronically controlled Engine Mounts to reduce the amount of vibration from the engine felt by the driver and passengers. These mounts have a fluid inside of them that changes in viscosity based on the electrical signal received by the engine's control module (PCM). If the PCM detects an incorrect signal back from the front engine mount, the PCM will set code P0A15.

    Powertrain Control Module (PCM) failure Symptoms

    • Abnormal vibration while driving may be detected by the driver
    • Transmission bangs into gear when shifting from park to reverse or drive

    Common Problems That Trigger the P0A15 Code

    • Damaged engine mount
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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