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PCM/ECM/TCM Internal Temperature Sensor (A) Circuit High

The control solenoid (w/body and TCM) valve assembly has a built-in TCM temperature sensor to detect possible overtemperature conditions of the Transmission Control Module (TCM). This fault indicates the TCM is in an overtemperature condition and the TCM has shut down to protect from possible heat damage to the TCM. TCM will remain off until the over temperature condition no longer exists.

Obstructions in the airflow of the radiator or transmission cooler
Kinked or damaged transmission fluid lines
Damage to the transmission cooler

Check engine light

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