Cadillac XT4 I (2018-2023) can bus low serial data Wiring diagrams

AUTO LEVEL CTRL AUTO LEVEL CTRL POS SENS LOW REF AUTO LEVEL CTRL POS SENS SIG AUXILIARY UNDERHOOD FUSE BLOCK BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BEAM RLY CTRL BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAN BUS HIGH 3 SERIAL DATA CAN BUS HIGH SERIAL DATA CAN BUS LOW 3 SERIAL DATA CAN BUS LOW SERIAL DATA COMPUTER DATA LINES SYSTEM DATA 1 (+) FRONT AXLE LEVEL FRONT AXLE LEVEL SENS LOW REF FRONT AXLE LEVEL SENSOR SIGNAL FRONT SUSPENSION HEIGHT SENSOR GMLAN SERIAL GROUND HDLP LOW HEADLAMP CONTROL MODULE HEADLAMP HIGH BEAM RELAY HI SPD GMLAN SERIAL DATA (+) 8 HIGH SPD HOT AT ALL TIMES LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP LEVELING ACTUATOR NCA WIRE POWER DISTRIBUTION SYSTEM REAR SUSPENSION HEIGHT SENSOR RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP LEVELING ACTUATOR SERIAL DATA COMM ENABLE UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/GRY WIRE

BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE CAN BUS HIGH 3 SERIAL DATA CAN BUS HIGH SERIAL DATA CAN BUS LOW SERIAL DATA DRIVER SEAT MEMORY CONTROL MODULE GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE HANDS-FREE LIFTGATE SENSOR CONTROL MODULE HEADLAMP CONTROL MODULE HI SPD GMLAN SER DATA (-) 8 HI SPD GMLAN SERIAL DATA (+) 4 HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (+) 9 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) KEYLESS ENTRY CONTROL MODULE LIFTGATE CONTROL MODULE LO SPD GMLAN LOCAL INTERCONNECT NETWORK BUS 13 NETWORK BUS 16 NETWORK BUS 8 NETWORK SERIAL BUS 18 NETWORK SERIAL DATA 16 NETWORK SERIAL DATA 18 PASSENGER PRESENCE MODULE PASSENGER SEAT BOLSTER MEMORY CONTROL MODULE PASSENGER SEAT MASSAGE SWITCH PASSENGER SEAT MEMORY CONTROL MODULE RUN/CRANK IGNITION 1 VOLTAGE SERIAL DATA SERIAL DATA COMM ENABLE SERIAL DATA COMMUNICATION ENABLE SERIAL DATA GATEWAY MODULE (LOWER LEFT SIDE OF DASH) VIO/GRY WIRE W/ MEMORY WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE