Cadillac CT6 I (2016-2019) telematics communication interface control module Wiring diagrams

AUDIO AMPLIFIER (LEFT REAR OF LUGGAGE COMPT) BLU WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE DATA DATA 1 (+) DATA 9 (+) DATA COMM ENABLE GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY/GRN WIRE GRY/VIO WIRE HI SPD SER HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR LO SPD MOST CTRL MOST SER SER DATA (+) 2 SERIAL DATA TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE W/ AUDIOPHILE W/O AUDIOPHILE W/ ONSTAR W/O ONSTAR WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE

AUDIO AMPLIFIER (LEFT REAR OF LUGGAGE COMPT) BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/VIO WIRE DATA DATA 2 (+) DATA 9 (+) DATA COMM ENABLE GRN WIRE GRY/GRN WIRE GRY/VIO WIRE HI SPD SER HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR IN LUGGAGE COMPT) LO SPD LO SPD SER MOST CTRL MOST SER SER DATA (+) 2 TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIDEO PROCESSING CONTROL MODULE W/ AUDIOPHILE SYSTEM W/O AUDIOPHILE SYSTEM WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE

AUDIO AMPLIFIER (LEFT REAR OF LUGGAGE COMPT) BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE DATA DATA 2 (+) DATA 9 (+) DATA COMM ENABLE GMLAN GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY/GRN WIRE GRY/VIO WIRE HI SPD SER HIGH SPEED EXTENSION BUS 2 TERMINATING RESISTOR LO SPD LO SPD SER MOST CTRL MOST SER SER DATA (+) 2 SERIAL DATA TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE W/ AUDIOPHILE W/O AUDIOPHILE W/ ONSTAR W/O BRAKE PREFILL, INTELLIGENT BRAKE ASSIST W/O ONSTAR W/ ONSTAR WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE WINDSHIELD FRONT VIEW CAMERA

AIR IONIZER AUXILIARY AUDIO INPUT AUXILIARY HVAC CONTROLS AUXILIARY MODE DOOR ACTUATOR BLK WIRE BLK/WHT WIRE BLOWER MOTOR BODY CONTROL MODULE CENTER CONSOLE COMPARTMENT LAMP CENTER CONSOLE MULTI-FUNCTION SWITCH CENTER CONSOLE RIGHT AUXILIARY AIR TEMPERATURE DOOR ACTUATOR CENTER INSTRUMENT PANEL SPEAKER CONTENT THEFT DETERRENT SENSOR MODULE FRONT ACCESSORY POWER RECEPTACLE FRONT CIGARETTE LIGHTER RECEPTACLE GARAGE DOOR OPENER LOGIC HEAD-UP DISPLAY HUMAN MACHINE INTERFACE CONTROL MODULE HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE HVAC CONTROL MODULE HVAC CONTROLS INFO DISPLAY MODULE INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT CLUSTER INSTRUMENT PANEL COMPARTMENT DOOR UNLATCH ACTUATOR INSTRUMENT PANEL COMPARTMENT LAMP INSTRUMENT PANEL MULTI- FUNCTION SWITCH 2 LOGIC LEFT FRONT DOME/ READING LAMPS LEFT INSTRUMENT PANEL ACCENT LAMP LEFT SUNSHADE MEDIA DISC EJECT SWITCH MEDIA DISC PLAYER MOBILE DEVICE WIRELESS CHARGER MODULE NAVIGATION CONTROL MODULE NIGHT VISION CAMERA CONTROL MODULE OVERHEAD CONSOLE MULTI- FUNCTION SWITCH PASSENGER AIR BAG DISABLED INDICATOR RIGHT FRONT DOME/ READING LAMPS RIGHT FRONT INNER FLOOR COURTESY LAMP RIGHT FRONT OUTER FLOOR COURTESY LAMP RIGHT INSTRUMENT PANEL ACCENT LAMP RIGHT SUNSHADE TELEMATICS BUTTON ASSEMBLY TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TRANSMISSION SHIFT LEVER W/ AUDIOPHILE W/ ONSTAR W/ QUAD ZONE W/ SMOKER'S PACKAGE W/ UNIVERSAL GARAGE DOOR OPENER W/O BRAKE PREFILL, INTELLIGENT BRAKE ASSIST W/O SMOKER'S PACKAGE

1-VT AUDIO SIG + BATT POS VOLT BATTERY FUSE BLOCK BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BU GPS CAMERA SIG 2 CAMERA SIGNAL 2 CELLULAR PHONE MICROPHONE COAX COAXIAL ANT GPS SIG COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DIGITAL RADIO ANTENNA FUSE 3 GMLAN SERIAL DATA (+) 9 GPS GPS/CELL GRN/WHT WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE GY GPS/CELL HD/XM HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE (LOWER RIGHT SIDE OF DASH) INFOTAINMENT DISPLAY SIG LO REF LOW REF LVDS MICROPHONE SIG MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION SYSTEM NCA WIRE NETWORK BUS 5 REAR ROOF ANTENNA RED WIRE RED/GRY WIRE RED/VIO WIRE RIGHT END OF DASH) SER DATA (+) 9 SIGNAL GROUND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB USB SRL DATA VIO WIRE VOICE SIG VT GPS/CELL W/ ONSTAR W/O ONSTAR W/O NAVIGATION W/ NAVIGATION WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

1-VT AUDIO SIG + BATT POS VOLT BATTERY FUSE BLOCK BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE CAMERA SIG 2 CELLULAR PHONE MICROPHONE COAX COAXIAL ANTENNA GPS SIG COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DIGITAL RADIO ANTENNA FUSE 3 GMLAN SERIAL DATA (+) 9 GPS GPS/CELL GRN/WHT WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HD/XM HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE (LOWER RIGHT SIDE OF DASH) INFOTAINMENT DISPLAY SIG LO REF LVDS MICROPHONE MICROPHONE SIG MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION SYSTEM NCA WIRE NETWORK BUS 5 REAR ROOF ANTENNA RED WIRE RED/GRY WIRE RED/VIO WIRE RIGHT END OF DASH) SER DATA (+) 9 SIG SIG GND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB USB SERIAL DATA VIO WIRE VOICE SIG W/ NAVIGATION W/O NAVIGATION W/ ONSTAR W/O ONSTAR W/ ONSTAR W/O ONSTAR WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

A/C COMPRESSOR ACCM/ SPARE FUSE AMBIENT LIGHT/ SUN LOAD SENSOR, BATTERY STATE OF CHARGE INDICATOR BATT POS VOLT BATTERY BATTERY SENSOR FUSE HOLDER BATTERY SENSOR MODULE BLK WIRE BLU/BLK WIRE BRN WIRE CHCM/ SPARE FUSE COMPUTER DATA LINES SYSTEM COOL FAN FUSE COOLANT HEATER CONTROL MODULE COOLING FAN MOTOR DISPLY FUSE ENABLE RLY CTRL EPS FUSE EXCEPT HYBRID HYBRID W/O REAR SEAT ENTERTAINMENT W/ REAR SEAT ENTERTAINMENT FROM REAR BODY FUSE BLOCK (DIAGRAM 6 OF 9) FUSE FUSE 1 FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 1 GEN FUSE GENERATOR GRN WIRE GRY WIRE HEAD-UP DISPLAY HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE HVAC CONTROL MODULE HVAC CONTROLS HVAC FUSE HYBRID/EV ELECTRONICS COOLANT PUMP HYBRID/EV POWERTRAIN CONTROL MODULE 1 POWER INVERTER MODULE IGN 1 VOLT INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LDW FUSE LOGIC MEDIA DISC EJECT SWITCH MEDIA DISC PLAYER NCA WIRE ONSTAR FUSE ORG/ WIRE POWER STEERING CONTROL MODULE POWER SUPPLY TRANSFORMER (RIGHT SIDE OF LUGGAGE COMPT) PWR CL PUMP FUSE REAR WHEEL STEERING CONTROL MODULE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SER DATA - (3) STARTER MOTOR STARTER RELAY STARTING/ CHARGING SYSTEM STRTR 2 FUSE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 5 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 6 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 8 OF 9) TO RSE DISP FUSE (DIAGRAM 7 OF 9) TO STR WHL FUSE (DIAGRAM 9 OF 9) TO STRTR 1 FUSE (DIAGRAM 2 OF 9) TO UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 9) TPIM 2 FUSE UNDERHOOD AUXILIARY FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE W/ ONSTAR WAKEUP SER DATA WHT WIRE YEL WIRE

AIR SOL FUSE BATT POS VOLT BATTERY BATTERY SENSOR FUSE HOLDER BATTERY SENSOR MODULE BLK WIRE BLU/BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOL FAN FUSE COOLING FAN MOTOR DISPLY FUSE ENABLE RLY CTRL EPS FUSE FROM POWER SUPPLY TRANSFORMER (DIAGRAM 1 OF 10) FROM REAR BODY FUSE BLOCK (DIAGRAM 6 OF 10) FUSE FUSE 1 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 GEN FUSE GENERATOR GRN WIRE HEAD-UP DISPLAY HVAC CONTROL MODULE HVAC CONTROLS HVAC FUSE IEC FUSE IGN 1 VOLT INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LDW FUSE LOGIC MEDIA DISC EJECT SWITCH MEDIA DISC PLAYER NCA WIRE ONSTAR FUSE ORG/ WIRE POWER STEERING CONTROL MODULE POWER SUPPLY TRANSFORMER (RIGHT SIDE OF LUGGAGE COMPT) RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SER DATA - (3) SPARE FUSE STARTER MOTOR STARTER RELAY STRTR 2 FUSE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 1 OF 10) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 10) TO MULTI-FUNCTION ENERGY STORAGE CAPACITOR CONTROL MODULE (DIAGRAM 10 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 5 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 8 OF 10) TO RSE DISP FUSE (DIAGRAM 7 OF 10) TO STR WHL FUSE (DIAGRAM 9 OF 10) TO STRTR 1 FUSE (DIAGRAM 2 OF 10) TO UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 10) UNDERHOOD AUXILIARY FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE W/ ONSTAR W/O REAR SEAT ENTERTAINMENT W/ REAR SEAT ENTERTAINMENT WAKEUP SER DATA WHT WIRE

1-VT AUDIO SIG + BATT POS VOLT BATTERY FUSE BLOCK BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BU GPS CAMERA SIG 2 CAMERA SIGNAL 2 CELLULAR PHONE MICROPHONE COAX COAXIAL ANT GPS SIG COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DIGITAL RADIO ANTENNA FUSE 3 GMLAN SERIAL DATA (+) 9 GPS GPS/CELL GRN/WHT WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE GY GPS/CELL HD/XM HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE (LOWER RIGHT SIDE OF DASH) INFOTAINMENT DISPLAY SIG LO REF LOW REF LVDS MICROPHONE SIG MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION SYSTEM NCA WIRE NETWORK BUS 5 REAR ROOF ANTENNA RED WIRE RED/GRY WIRE RED/VIO WIRE RIGHT END OF DASH) SER DATA (+) 9 SIGNAL GROUND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB USB SRL DATA VIO WIRE VOICE SIG VT GPS/CELL W/ ONSTAR W/O ONSTAR W/O NAVIGATION W/ NAVIGATION WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

1-VT AUDIO SIG + BATT POS VOLT BATTERY FUSE BLOCK BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE CAMERA SIG 2 CELLULAR PHONE MICROPHONE COAX COAXIAL ANTENNA GPS SIG COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM DIGITAL RADIO ANTENNA FUSE 3 GMLAN SERIAL DATA (+) 9 GPS GPS/CELL GRN/WHT WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HD/XM HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE (LOWER RIGHT SIDE OF DASH) INFOTAINMENT DISPLAY SIG LO REF LVDS MICROPHONE MICROPHONE SIG MOST CONTROL MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION SYSTEM NCA WIRE NETWORK BUS 5 REAR ROOF ANTENNA RED WIRE RED/GRY WIRE RED/VIO WIRE RIGHT END OF DASH) SER DATA (+) 9 SIG SIG GND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB USB SERIAL DATA VIO WIRE VOICE SIG W/ NAVIGATION W/O NAVIGATION W/ ONSTAR W/O ONSTAR W/ ONSTAR W/O ONSTAR WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE