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What Does P0652 Code Mean?

    OBD-II Code P0652 is defined as a Sensor Reference Voltage "B" Circuit Low

    The engine control module (PCM) sends out a 5 volt reference signal to all applicable engine sensors. If the PCM detects an issue with this signal, it will set code P0652.

    P0652 Symptoms

    • Engine may not start

    Common Problems That Trigger the P0652 Code

    • Engine sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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