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OBD II Fault Code

  • OBD II P0A8A

OBD-II Code Low voltage systems will not operate is defined as a 14 Volt Power Module Current Sensor Circuit Intermittent

The 14V Power Module, also referred to as the Accessory DC Power Module, monitors the current to the low voltage systems. If the module does not detect the requested voltage, the 14V Power Module will set code P0A8A and disable the low voltage system.

Low voltage systems will not operate Symptoms

  • Low voltage systems will not operate

Common Problems That Trigger the P0A8A Code

  • 14v power module failure
  • 14V power module software update needed

Common Repairs Needed for the P0A8A Code

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