GMC Terrain II facelift (2021-2024) Head-up display circuit

BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRN WIRE COMPUTER DATA LINES SYSTEM GROUND GRY/BRN WIRE GRY/GRN WIRE HEAD-UP DISPLAY MODULE HEAD-UP DISPLAY SW LOW REF HEAD-UP DISPLAY SW SIG HEAD-UP DISPLAY SWITCH HEADLAMP ON HOT AT ALL TIMES HUD INFO INSTRUMENT PANEL FUSE BLOCK LOW SPEED GMLAN SERIAL DATA 2 POWER SUPPLY TRANSFORMER RED/BRN WIRE RED/GRY WIRE REGULATED CTRL YEL WIRE YEL/WHT WIRE