Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Schematic Wiring Diagrams >> Schematic Wiring Diagrams >> Automatic Transmission Controls Wiring Schematics (9T45 (M3U) Or 9T50 (M3D M3H)) >> Shift Controls (with EPH)