Our automotive experts have put together the following information about the P06AC 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 P06AC code.

OBD II Fault Code

  • OBD II P06AC

OBD-II Code Transmission Control Module (TCM) failure is defined as a PCM/ECM/TCM Internal Temperature Sensor "B"

The Transmission Control Module uses an internal sensor to record the modules temperature on startup. If the temperature does not change at least 2 degrees within the first 2 minutes of startup, code P06AC will set.

Common Problems That Trigger the P06AC Code

  • Internal transmission failure
  • Transmission Control Module (TCM) failure
  • Transmission fluid level is low


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