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OBD II Fault Code

  • OBD II P0AC4

    OBD-II Code Diagonostic Trouble Code is defined as a Hybrid Powertrain Control Module Requested MIL Illumination

    The vehicle uses several different modules to run self-checks on the high voltage system. If a fault is found by any of the modules, code P0AC4 will set. Additional codes may be stored in other modules.

    Common Problems That Trigger the P0AC4 Code

    • Further diagnostics of the hybrid system is required
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