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Our automotive experts have put together the following information about the P051A 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 P051A code.

OBD II Fault Code

  • OBD II P051A

    OBD-II Code Oil leaking from the engine is defined as a Crankcase Pressure Sensor Circuit

    The Crankcase Pressure Sensor tells the engine control module (PCM) how much pressure is building up inside the engine. If the PCM detects an incorrect signal from the Crankcase Pressure Sensor, the PCM will set code P051A.

    Oil leaking from the engine Symptoms

    • Oil leaking from the engine

    Common Problems That Trigger the P051A Code

    • Crankcase pressure sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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