Cadillac CT4-V I (2019-2024) computer data lines system Wiring diagrams

AUTOSAR CAN BUS (+) 2 SERIAL DATA BATTERY POSITIVE VOLT BLK WIRE BLU/BRN WIRE BLU/YEL WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DR ILL LAMP 2 CTRL DR ILL LAMP GND DRIVER INFORMATION CENTER DISPLAY DRIVER MONITORING CAMERA DRIVER MONITORING SYSTEM MODULE ETHERNET BUS 7 (-) GN LVDS HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC LVDS PERFORMANCE DATA GN REC LOW VOLT LVDS DIFFERENTIAL SIGNALING LVDS SIG RED/BLU WIRE STEERING WHEEL AIR BAG COIL STEERING WHEEL LED DISPLAY VIO WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE WHT/VIO WIRE YEL/BLU WIRE

AUTOSAR CAN BUS (+) 2 SERIAL DATA BLK/WHT WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIGNAL GRN/VIO WIRE GROUND 22 HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK LIFTGATE AJAR SWITCH SIGNAL 1 LIGHTING CONTROL MODULE (RIGHT SIDE OF DASH) REAR BODY FUSE BLOCK RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RF LAMP ASSEMBLY CONTROL RF TURN SIGNAL LAMP CONTROL RIGHT CORNERING LAMP CONTROL RIGHT FRONT DRL CONTROL RIGHT FRONT PARK LAMP CONTROL RIGHT HEADLAMP HIGH BEAM CONTROL RIGHT HEADLAMP LOW BEAM CONTROL SEC FUSED BATTERY POSITIVE VOLT 17 SEC FUSED BATTERY POSITIVE VOLT 27 SEC FUSED BATTERY POSITIVE VOLT 28 SEC FUSED BATTERY POSITIVE VOLT 29 TRUNK, TAILGATE, FUEL DOORS SYSTEM UNDERHOOD FUSE BLOCK VIO/GRY WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE YEL/WHT WIRE

BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISPLAY GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC LVDS RADIO RADIO CONTROL RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE VIO WIRE VIO/BLU WIRE VIO/YEL WIRE W/ ONSTAR W/O ONSTAR WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AM/FM RADIO ANTENNA AMPLIFIER BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE COAX COMPUTER DATA LINES SYSTEM DOWN GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT LOGIC REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RED/YEL WIRE RIGHT UP SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL RADIO CONTROL SWITCH VIO WIRE VIO/BLU WIRE VIO/WHT WIRE VOL (-) YEL WIRE YEL/BLK WIRE

ANC MICROPHONE 1 FEEDBACK SIG RR LOW LEVEL AUDIO (-) LOW REF ANC MICROPHONE 1 SIG ANC MICROPHONE 2 FEEDBACK SIG ANC MICROPHONE 2 SIG ANC MICROPHONE 3 FEEDBACK SIG ANC MICROPHONE 3 SIG AUDIO AMPLIFIER AUDIO AMPLIFIER CONTROL LEFT/REAR SUBWOOFER CTRL (-) AUTOSAR CAN BUS (-) 5 SER DATA BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENTERTAINMENT REMOTE ENABLE SIG FRONT CENTER SPEAKER (+) FRONT CENTER SPEAKER (-) CTRL GND 15 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE LEFT FRONT ACTIVE NOISE CANCELLATION MICROPHONE LEFT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER LEFT RADIO FRONT SIDE DOOR SPEAKER LEFT RADIO REAR SIDE DOOR SPEAKER LEFT REAR SPEAKER (-) CTRL LF LOW LEVEL AUDIO (-) LOW REF LF LOW LEVEL AUDIO SIG LF SPEAKER (-) CTRL 1 RIGHT SUBWOOFER CTRL (-) LF SPEAKER 1 (+) CTRL LR LOW LEVEL AUDIO (-) LOW REF LR LOW LEVEL AUDIO SIG + LR SUBWOOFER CTRL (-) RADIO FRONT CENTER SPEAKER RADIO REAR SPEAKER REAR ACTIVE NOISE CANCELLATION MICROPHONE RED/YEL WIRE RF LOW LEVEL AUDIO SIG RF SPEAKER (-) CTRL 1 RF SPEAKER 1 (+) CTRL RF SPEAKER CTRL (-) CTRL RF SPEAKER SIG (+) CTRL RIGHT FRONT ACTIVE NOISE CANCELLATION MICROPHONE RIGHT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER RIGHT RADIO FRONT SIDE DOOR SPEAKER RIGHT RADIO REAR SIDE DOOR SPEAKER RIGHT REAR SPEAKER (-) CTRL RIGHT SUBWOOFER CTRL (+) RL LOW LEVEL AUDIO (-) LOW REF RR LOW LEVEL AUDIO SIG + SEC FUSED BATT POS VOLT 37 VIO/BLU WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

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/VIO WIRE BRN/WHT WIRE CARD READER RECEPTACLE COAX COMPUTER DATA LINES SYSTEM GRN WIRE GRN/BLK WIRE GRY/YEL WIRE LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LVDS NCA WIRE RED/BLU WIRE RED/VIO WIRE RIGHT FRONT MOBILE TELEPHONE MICROPHONE USB VEHICLE PERFORMANCE CAMERA VEHICLE PERFORMANCE DATA RECORDER VEHICLE PERFORMANCE GPS ANTENNA VIO WIRE VIO/YEL WIRE W/ ONSTAR W/O ONSTAR WHT/VIO WIRE YEL/VIO WIRE

1 PU 2 PU AUDIO (-) CONTROL AUDIO (-) CTRL AUTOSAR CAN BLK WIRE 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 BUS (-) 5 SER DATA CELL PHONE SIG CELL/GPS CELLULAR TELE CELLULAR TELE MICRO COAX COAXIAL ANTENNA COMBINED SIG COMPUTER DATA LINES SYSTEM ETHERNET BUS 4 (-) GRN/BLK WIRE GRY WIRE GRY/WHT WIRE GRY/YEL WIRE INFOTAINMENT CONTROL SWITCH LOGIC LOW REF LOW REF 7 MICRO SIG + MULTIMEDIA RECEPTACLE NCA WIRE RED/VIO WIRE USB VOICE RECOGNITION W/ ONSTAR W/O ONSTAR WHT/BLK WIRE YEL WIRE

AM/FM RADIO ANTENNA AMPLIFIER BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH GRN/BLK WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE LEFT RADIO QUARTER SPEAKER LOGIC LVDS MUTE RADIO REAR VIEW CAMERA RIGHT RADIO BODY REAR SIDE CORNER UPPER GARNISH MOLDING RIGHT RADIO REAR SIDE DOOR SPEAKER USB VIO/WHT WIRE VOICE WHT WIRE WHT/BLK WIRE YEL/BRN WIRE

AUDIO AMPLIFIER AUTOSAR CAN BUS (+) 5 SER DATA AUTOSAR CAN BUS (-) 5 SER DATA AUTOSAR CAN BUS (+) 5 SERIAL DATA AUTOSAR CAN BUS (-) 5 SER DATA BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ETHERNET BUS (+) 6 ETHERNET BUS (-) 6 GND 15 LF SPEAKER (-) CTRL 1 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE LEFT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER LEFT RADIO FRONT SIDE DOOR SPEAKER LEFT RADIO FRONT SIDE DOOR UPPER SPEAKER LF MIDRANGE SPEAKER (+) CTRL LF SPEAKER 1 (+) CTRL LR AUDIO SIG LR SIG (-) LR SPEAKER (+) CTRL LR SPKR LR SUBWOOFER CTRL (-) MIC 1 SIG MIC 2 SIG MIC 3 SIG R/L R SURROUND SPEAKER (+) CTRL RADIO REAR SPEAKER REAR ACTIVE NOISE CANCELLATION MICROPHONE RED/YEL WIRE RF MIDRANGE SPEAKER (-) CTRL RF SPEAKER (-) CTRL 1 RF SPEAKER 1 (+) CTRL RIGHT FRONT ACTIVE NOISE CANCELLATION MICROPHONE RIGHT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER RIGHT RADIO FRONT SIDE DOOR SPEAKER RIGHT RADIO FRONT SIDE DOOR UPPER SPEAKER RL SURROUND SPEAKER (-) CTRL RR LOW LEVEL AUDIO SIG + RR SPEAKER (+) CTRL RR SPKR SEC FUSED BATT POS VOLT 37 VIO/BLU WIRE W/ ACTIVE NOISE CANCELLATION MICROPHONE W/O ACTIVE NOISE CANCELLATION MICROPHONE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 2 SERIAL DATA BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRN WIRE BRN/BLU WIRE BRN/WHT WIRE BUS 7 (-) COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ETHERNET FRT PRK ASSIST DISPLAY CTRL FRT PRK ASSIST SENS LOW REF GRN/BRN WIRE GRY/BLU WIRE GRY/GRN WIRE HAZARD WARNING SWITCH HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT MIDDLE PARKING ASSIST ALARM SENSOR LEFT FRONT OUTER PARKING ASSIST ALARM SENSOR LEFT REAR MIDDLE PARKING ASSIST ALARM SENSOR LEFT REAR OUTER PARKING ASSIST ALARM SENSOR LF MID PRK ASSIST SENS LF OUTER PRK ASSIST SENS LOGIC LR MID PRK ASSIST SENS SIG OBJECT SENS LOW REF OBJECT SENSOR VOLTAGE REF PARKING ASSIST CONTROL MODULE REAR BODY WIRING HARNESS JUNCTION BLOCK REAR PARKING ASSIST DISABLE IND REAR PARKING ASSIST DISABLE LED SIGNAL REAR PARKING ASSIST DISABLE SIGNAL REAR PARKING ASSIST DISABLE SWITCH RED/GRN WIRE RF MID PRK ASSIST SENS RF OUTER PRK ASSIST SENS RIGHT FRONT MIDDLE PARKING ASSIST ALARM SENSOR RIGHT FRONT OUTER PARKING ASSIST ALARM SENSOR RIGHT REAR MIDDLE PARKING ASSIST ALARM SENSOR RIGHT REAR OUTER PARKING ASSIST ALARM SENSOR RR MID PRK ASSIST SENS SIG LR OUTER PRK ASSIST SENS SIG RR OUTER PRK ASSIST SENS SIG SIG GROUND VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE