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OBD II Fault Code

  • OBD II P0AE4

    OBD-II Code High voltage control module failure is defined as a Hybrid Battery Precharge Contactor Control Circuit

    The High Voltage Control Module uses internal transistors to control proper operation of the high voltage system. If one or more of these relays is determined by the control module to be faulty, code P0AE4 will be set.

    Common Problems That Trigger the P0AE4 Code

    • Auxiliary 12V battery failure
    • High voltage control module failure
    • High voltage system relay failure
    • Wiring issue

    Common Repairs Needed for the P0AE4 Code

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