Our automotive experts have put together the following information about the P2578 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 P2578 code.

OBD II Fault Code

  • OBD II P2578

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Turbocharger Speed Sensor Circuit

    The Turbocharger is programmed to spin at a certain speed based on the engine's RPM. If the Turbocharger deviates too much from the anticipated speed of rotation, code P2578 will be set.

    Powertrain Control Module (PCM) failure Symptoms

    • Lack of boost from the turbo/supercharger

    Common Problems That Trigger the P2578 Code

    • Powertrain Control Module (PCM) failure
    • Turbocharger speed sensor failure
    • Wiring issue
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