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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Automatic Transmission - 6T40 - DTC P0601 To DTC P0971) >> Diagnostic Information and Procedures >> DTC P0634: Control Module Overtemperature >> Circuit/System Description

Circuit/System Description

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The transmission control module (TCM) temperature sensor is located inside of the control solenoid valve assembly which has no serviceable components. The TCM monitors the TCM temperature sensor for over temperature protection.

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