Rear differential lock circuit for GMC Terrain II (2017-2021)

AWD FUSE AWD IND AWD INDICATOR CTRL AWD POWER TRANSFER MTR AWD POWER TRANSFER MTR CTRL A BATTERY POSITIVE VOLT BLK WIRE BLK/PPL WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DIFFERENTIAL CLUTCH PUMP (ON REAR DIFFERENTIAL) DRIVE MODE SELECT SWITCH GRN/BRN WIRE GRY/GRN WIRE HI SPD GMLAN DATA BUS (+) 1 BATTERY POSITIVE VOLT HI SPD GMLAN DATA BUS (+) 1 GND HI SPD GMLAN DATA BUS (+) 2 HI SPD GMLAN DATA BUS (-) 1 HOT AT ALL TIMES INDICATOR DIMMING CTRL POWER TRANSFER UNIT SHIFT ACTUATOR PPL PPL/BRN WIRE PPL/WHT WIRE REAR AWD FUSE REAR BODY FUSE BLOCK REAR DIFFERENTIAL CLUTCH CONTROL MODULE RED WIRE RED/BLK WIRE RED/PPL WIRE RED/WHT WIRE SENS LOW REF SENS SIG SENS VOLT REF SERIAL DATA COMM ENABLE SIG (1) SIG 3 SPLY VOLT PPL LOW VOLT U PHASE V PHASE W PHASE WHT WIRE WHT/BLU WIRE WHT/RED WIRE