Cadillac CT5 I (2019-2024) computer data lines system Wiring diagrams

APPROACH LAMP CONTROL AUTOSAR CAN BUS (+) 2 SERIAL DATA BLK WIRE BLK/WHT WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/YEL WIRE CENTER HIGH MOUNTED STOP LAMP SPLY VOLTAGE COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC BRAKE SIGNAL ENGINE WIRING HARNESS JUNCTION BLOCK EXTERIOR DOOR HANDLE LAMP CONTROL FRONT TURN SIGNAL LAMP FEEDBACK SIGNAL GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE HOT AT ALL TIMES LEFT CORNERING LAMP CONTROL LEFT FRONT LAMP ASSEMBLY CONTROL LEFT FRONT PARK LAMP CONTROL LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP CONTROL LEFT PARK LAMP CONTROL 2 LEFT REAR PARK LAMP CONTROL LEFT REAR TURN SIGNAL LAMP CONTROL 2 LEFT TURN SIGNAL LAMP CONTROL 2 LIGHTING CONTROL MODULE (RIGHT SIDE OF DASH) LOGIC REAR LICENSE PLATE LAMP CONTROL REAR TURN SIGNAL LAMP FEEDBACK SIGNAL RED/WHT WIRE RIGHT CORNERING LAMP CONTROL RIGHT FRONT PARK LAMP CONTROL RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP CONTROL RIGHT FRONT TURN SIGNAL LAMP FEEDBACK SIGNAL RIGHT PARK LAMP CONTROL 2 RIGHT REAR PARK LAMP CONTROL RIGHT REAR TURN SIGNAL LAMP CONTROL 2 RIGHT REAR TURN SIGNAL LAMP FEEDBACK SIGNAL RIGHT TURN SIGNAL LAMP CONTROL 2 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 27 VIO/BLK WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/WHT WIRE

2.0L TURBO 3.0L TURBO AUTOSAR CAN BUS SERIAL DATA (+) 3 AUTOSAR CAN BUS SERIAL DATA (+) 2 AUTOSAR CAN BUS SERIAL DATA (+) 5 AUTOSAR CAN BUS SERIAL DATA (-) 5 BLK WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE WIRING HARNESS JUNCTION BLOCK FRONT BUMPER SHUTTER ACTUATOR GRN/VIO WIRE GROUND HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LIN LIN BUS 1 LOGIC RUN/CRANK IGN 1 VOLTAGE VIO/BLK WIRE VIO/BLU WIRE

BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU/YEL WIRE BRAKE MASTER CYLINDER (LEFT REAR OF ENGINE COMPT) BRAKE SYSTEM CONTROL MODULE CAN BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM CTRL MODULE LIN BUS 1 DRIVER INFORMATION CENTER DISPLAY GRN/BLK WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT PARKING BRAKE ACTUATOR LIN BUS 1 LOGIC PARK BRAKE IND PARKING BRAKE CONTROL SWITCH PRK BRK MTR APPLY CTRL PRK BRK MTR LOW REF RED/BRN WIRE RED/VIO WIRE RIGHT PARKING BRAKE ACTUATOR RUN/CRANK IGNITION 1 VOLTAGE SERVICE PARK BRAKE IND VIO/BLK WIRE WHT WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS SERIAL DATA (+) 2 AUTOSAR CAN BUS SERIAL DATA (-) 2 BATT POSITIVE VOLT BLK/ORG WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER RIGHT SIDE OF DASH) BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRV KNEE MOD HI CTRL DRV KNEE MOD LO CTRL GRN/BLK WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT ACTIVE HOOD HINGE ACTUATOR LEFT HOOD HINGE ACTUATOR HIGH CTRL LEFT HOOD HINGE ACTUATOR LOW CTRL LIN BUS 1 LOGIC NCA WIRE ORG/VIO WIRE PASS KNEE MOD HI CTRL PASS KNEE MOD LO CTRL PEDESTRIAN AHEAD IND RED/GRN WIRE RESTRAINTS CONTROL MODULE (MIDDLE OF CENTER FLOOR CONSOLE) RIGHT ACTIVE HOOD HINGE ACTUATOR SHORTING BAR SIG GROUND STEERING WHEEL MOD STAGE 2 HI CTRL STEERING WHEEL MOD STAGE 2 LO CTRL TRANSMISSION CONTROL MODULE UPPER BEAM FRONT PEDESTRIAN IMPACT DETECTION SENSOR VIO/RED WIRE WHT WIRE WHT/RED WIRE

AUDIO AMP CTRL AUTOSAR CAN BUS (-) 5 SER DATA BACKUP LAMP CTRL BATTERY POST VOLT 3 BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE CAN BUS (+) SER DATA COMPUTER DATA LINES SYSTEM DOWN ENTERTAINMENT REM ENABLE SIG GND 28 GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT LF LOW LEVEL AUDIO (-) SIG RR LOW LEVEL AUDIO SIG LF LOW LEVEL AUDIO SIG LF RE LOW LEVEL AUDIO (-) SIG LF RR LOW LEVEL AUDIO SIG LOGIC MICROPHONE MICROPHONE SIG PNK WIRE RADIO RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RF LOW LEVEL AUDIO SIG RIGHT RR LOW LEVEL AUDIO SIG + SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL RADIO CONTROL SWITCH VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO (+) SIG CELLULAR TELEPHONE MICROPHONE LO REF VOICE RECOGNITION AUDIO SIG CELLULAR TELEPHONE MICROPHONE SIG VOL (-) W/ ONSTAR W/O ONSTAR WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AUTOSAR CAN BUS (-) 5 SER DATA BACKUP LAMP CTRL BATTERY POST VOLT 3 BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/VIO WIRE BRN/WHT WIRE CAN BUS (+) SER DATA COMPUTER DATA LINES SYSTEM DOWN GND 28 GRN WIRE GRN/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT LF RE LOW LEVEL AUDIO (-) SIG LF RR LOW LEVEL AUDIO SIG LOGIC MICROPHONE MICROPHONE SIG PNK WIRE RADIO RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RIGHT RR LOW LEVEL AUDIO SIG + SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL RADIO CONTROL SWITCH VIO/WHT WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO (+) SIG CELLULAR TELEPHONE MICROPHONE LO REF VOICE RECOGNITION AUDIO SIG CELLULAR TELEPHONE MICROPHONE SIG VOL (-) W/ ONSTAR W/O ONSTAR WHT/BLK WIRE YEL WIRE

AUDIO (-) CTRL AUDIO SIG + BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE CELL CELL/GPS CELLULAR TELEPHONE COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH ETHERNET BUS 4 (-) GRN/BLK WIRE GRY WIRE GRY/YEL WIRE INFOTAINMENT CONTROL SWITCH LEFT FRONT MOBILE TELEPHONE MICROPHONE LO REF 7 MICROPHONE LO REF MICROPHONE SIG NCA WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RIGHT FRONT MOBILE TELEPHONE MICROPHONE VIO/WHT WIRE VIO/YEL WIRE VOICE RECOGNITION W/ ONSTAR W/O ONSTAR WHT WIRE WHT/BLK WIRE YEL/WHT WIRE

AUTOSAR CAN BUS BATT POST VOLT 32 BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISPLAY GND 28 GRN WIRE GRN/BLK WIRE LEFT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER LEFT RADIO FRONT SIDE DOOR SPEAKER LEFT RADIO FRONT SIDE DOOR UPPER SPEAKER LEFT RADIO REAR SIDE DOOR SPEAKER LEFT RADIO REAR SIDE DOOR UPPER SPEAKER LEFT RADIO REAR SPEAKER LOGIC LVDS RADIO CONTROL RADIO FRONT CENTER SPEAKER RED/BLU WIRE RIGHT FRONT ACTIVE NOISE CANCELLATION MICROPHONE RIGHT RADIO REAR SIDE DOOR SPEAKER RIGHT RADIO REAR SIDE DOOR UPPER SPEAKER WHT WIRE YEL/WHT WIRE

ACTV NOISE CANCELLATION MICROPHONE (1) SIG ACTV NOISE CANCELLATION MICROPHONE (1) SIG FEEDBACK ACTV NOISE CANCELLATION MICROPHONE (2) SIG ACTV NOISE CANCELLATION MICROPHONE (2) SIG FEEDBACK ACTV NOISE CANCELLATION MICROPHONE (3) SIG FEEDBACK ACTV NOISE CANCELLATION MICROPHONE (3) SIG LR LOW LEVEL AUDIO SIG AUDIO AMPLIFIER (RIGHT SIDE OF LUGGAGE COMPT) AUTOSAR CAN BUS (+) 5 SERIAL DATA BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) FRT CEN SPKR (+) FRT CEN SPKR (-) CTRL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES LEFT FRONT ACTIVE NOISE CANCELLATION MICROPHONE LEFT RADIO REAR SURROUND SPEAKER LF MIDRANGE SPKR (-) CTRL LF SPKR (1) (+) CTRL BATTERY POSITIVE VOLTAGE 37 LF SPKR (1) (-) CTRL GROUND 15 LR LOW LEVEL AUDIO SIG + LR MIDRANGE SPKR (+) CTRL LR SPKR (-) CTRL REAR ACTIVE NOISE CANCELLATION MICROPHONE REAR BODY WIRING HARNESS JUNCTION BLOCK RED/YEL WIRE RF MIDRANGE SPKR (-) CTRL RF SPKR (-) CTRL (1) RF SPKR (1) (+) CTRL RH SUBWOOFER CTRL (-) RIGHT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER RIGHT RADIO FRONT SIDE DOOR SPEAKER RIGHT RADIO FRONT SIDE DOOR UPPER SPEAKER RIGHT RADIO REAR SPEAKER RIGHT RADIO REAR SURROUND SPEAKER RR LOW LEVEL AUDIO SIG + RR MIDRANGE SPKR (+) CTRL RR SPKR (-) CTRL WHT WIRE WHT/BLK WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/WHT WIRE

BATT POS VOLT BLK WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE CAN BUS (+) 2 CAN BUS (-) 1 SER DATA CAN BUS (-) 1 SER DATA ING VOLT COLUMN LOCK MODULE (BASE OF STEERING COLUMN) COMPUTER DATA LINES SYSTEM DRIVER FRONT SIDE DOOR LATCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RED/GRY WIRE WHT WIRE