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What Does P0473 Code Mean?

    OBD-II Code P0473 is defined as a Exhaust Pressure Sensor "A" Circuit High

    The Exhaust Pressure Sensor tells the engine control module (PCM) how much pressure is in the exhaust manifold. If the PCM determines there is an incorrect signal from the Exhaust Pressure Sensor, the PCM will set code P0473.

    Common Problems That Trigger the P0473 Code

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