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Home >> GMC >> 2011 >> Yukon Base, 5.3 3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Automatic Transmission - 2ML70 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0634 >> Circuit/System Description

Circuit/System Description

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The transmission control module has a built-in temperature sensor to detect possible over-temperature conditions of the transmission control module. This fault indicates the transmission control module is in an overtemperature condition and the transmission control module has shut down to protect from possible heat damage. The transmission control module will remain off until the over temperature condition no longer exists. The transmission control module is part of the control solenoid valve assembly and is not serviced separately.

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