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OBD II Fault Code

  • OBD II P0A9F

    OBD-II Code Wiring issue is defined as a Hybrid Battery Temperature Sensor "A" Circuit Intermittent/Erratic

    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 P0A9F will set.If multiple sensors fail, the High Voltage System may be disabled.

    Common Problems That Trigger the P0A9F Code

    • High voltage battery assembly failure
    • High voltage battery interface control module failure
    • Wiring issue
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