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OBD II Fault Code

  • OBD II P0C44

    OBD-II Code High voltage system may not start in cold weather is defined as a Hybrid Battery Pack Coolant Temperature Sensor Circuit Low

    The hybrid battery pack uses an inlet and outlet coolant temperature sensor to monitor and control the hybrid battery temperature. If one or both of these sensors sends back an implausible signal, code P0C44 is set.

    High voltage system may not start in cold weather Symptoms

    • High voltage system may not start in cold weather

    Common Problems That Trigger the P0C44 Code

    • Battery Energy Control Module (BECM) failure
    • High voltage battery pack coolant temperature sensor failure
    • Wiring issue

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