P0A1E - OBD II Trouble Code

Our automotive experts have put together the following information about the P0A1E diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0A1E code.

OBD II Fault Code

• OBD II P0A1E

OBD-II Code High voltage system may not operate is defined as a Starter/Generator Control Module

The Starter/Generator Control Module is responsible for making sure the hybrid battery pack stays properly charged, controls the hybrid battery cooling system, and detects any malfunctions with the hybrid battery pack. The Battery Control Module runs a self-check to make sure it is capable of operating properly. If the Battery Control Module fails this self-check, the engine control module (PCM) will set code P0A1E.

High voltage system may not operate Symptoms

• High voltage system may not operate

Common Problems That Trigger the P0A1E Code

• Starter/generator control module failure
• Starter/generator Control module software needs to be updated