GMC Sierra III facelift (2015-2018) Transfer case circuit, 2-speed automatic

2 HI IND CTRL 4 HI IND CTRL 4 LO IND CTRL 5 VOLT REF ACC WAKEUP SERIAL DATA ACCY/ RUN CRNK FUSE BATT + BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DRIVER INFORMATION CENTER ASSEMBLY FRONT AXLE ENGAGEMENT ACTUATOR FT AXLE ACTUATOR CTRL GMLAN SERIAL DATA - 1 GRN/BLK WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INCREMENTAL ENCDR SENS RTN INCREMENTAL ENCDR SENS SPLY INCRMT ENCODER DIR SIG INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK J102 (6.6L TURBO DIESEL) J123 (6.6L TURBO DIESEL) J124 (6.0L) LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPD GMLAN SERIAL DATA 2 MTR CLOCKWISE CTRL MTR COUNTER CLOCKWISE CTRL NEUTRAL IND CTRL RED/GRY WIRE ROTARY POS IMPULSE SIG RUN/CRANK IGN 1 VOLT TRANS IGN FUSE TRANSFER CASE CONTROL MODULE UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

2 HI 4 HI 2-HI IND 4 LO 4-HI IND 4-LO IND BCM 2 FUSE BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE GRN/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES IGN 3 ILL NEUTRAL IND POWER DISTRIBUTION SYSTEM RED/BRN WIRE RED/GRY WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA (-) (1) TRANSFER CASE MOTOR TRANSFER CASE SHIFT CONTROL SWITCH VIO WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/GRY WIRE YEL/VIO WIRE