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OBD II Fault Code

  • OBD II P0A7B

OBD-II Code High voltage system may not operate is defined as a Battery Energy Control Module Requested MIL Illumination

Code P0A7B indicates there is a fault in the high voltage system that requires further diagnostics. Additional codes may be stored in other control modules.

High voltage system may not operate Symptoms

  • High voltage system may not operate

Common Problems That Trigger the P0A7B Code

  • Further diagnostics of the hybrid system is required
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