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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transmission - 6T70 (M7U M7W) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0634: Control Module Overtemperature >> Conditions for Setting the DTC

Conditions for Setting the DTC

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Condition 1 

TCM detects an internal temperature condition of 146°C (295°F) or greater for 5 s.

Condition 2 

Ignition voltage is 18 V or greater and the TCM detects an internal temperature of 50°C (122°F) or greater for 2 s.

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