OBD II Fault Code

  • OBD II P0AC5

    OBD-II Code High voltage control module failure is defined as a Hybrid Battery Temperature Sensor "B" Circuit

    The hybrid battery pack uses multiple sensors to monitor the temperature of each battery cell. If one of the battery temperature sensors reports an implausible temperature, code P0AC5 will set.If multiple sensors fail, the High Voltage System may be disabled.

    Common Problems That Trigger the P0AC5 Code

    • Battery Control Module Failure
    • High voltage battery assembly failure
    • High voltage control module failure
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