Chevrolet Tahoe IV (2014-2021) computer data lines system Wiring diagrams

AUX VIDEO HI SIG AUX VIDEO LO SIG BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAMERA CAMERA LOW REF CAMERA REAR VISION SIG (-) CAMERA SIG 2 CAMERA SPLY VOLT COMPUTER DATA LINES SYSTEM FRONT VIEW CAMERA GRILLE (CENTER OF FRONT GRILLE) GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE LEFT INSTRUMENT PANEL FUSE BLOCK LEFT OUTSIDE REAR VIEW MIRROR LEFT SIDE VIEW CAMERA LOW SPD GMLAN SERIAL DATA LT SIDE VISION CAMERA VIDEO SIG (-) NCA WIRE PNK WIRE REAR VIEW CAMERA (OUTSIDE OF LIFTGATE) RED WIRE RED/VIO WIRE RIGHT OUTSIDE REAR VIEW MIRROR RIGHT SIDE VIEW CAMERA RT SIDE VISION CAMERA VIDEO SIG (-) SIG (2) SIG GND VIDEO PROCESSING CONTROL MODULE (LEFT SIDE OF DASH) VIO/GRN WIRE VPM FUSE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE

ALERT LED CTRL BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE CADILLAC CHEVROLET, GMC COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DIMMING CTRL GAP UP/DOWN SWITCH GMLAN SERIAL DATA GRN WIRE GROUND GRY/GRN WIRE GRY/ORG WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 IPC IGN/SDM IGN FUSE LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LANE DEPARTURE WARNING SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN SERIAL DATA LOGIC RED/GRN WIRE REFLECTED LED DISPLAY DIMMING CTRL RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA COMM ENABLE STEERING WHEEL AIR BAG COIL SW SIG UP/DOWN SW SIG USB/OBS DET FUSE VIO/BLK WIRE VOLT REF WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WINDSHIELD FRONT VIEW CAMERA (TOP MIDDLE OF WINDSHIELD)

AUDIO SIG + BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLUETOOTH WIRELESS COMMUNICATION ANTENNA (WIRELESS INTERFACE) BRN WIRE CELL COAX COMPUTER DATA LINES SYSTEM DRAIN WIRE GMC/ CHEVROLET GPS/CELL GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/YEL WIRE INSTRUMENT PANEL COMPARTMENT USB RECEPTACLE INSTRUMENT PANEL JUNCTION BLOCK LOGIC USB RECEPTACLE LOW REF MOBILE TELEPHONE MICROPHONE NCA WIRE RED WIRE RED/GRN WIRE RED/VIO WIRE REMOTE MEDIA EJECT SIG SERIAL DATA SIG TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE USB VOICE LOW REF VOICE SIG W/ ONSTAR W/ REAR SEAT ENTERTAINMENT W/O REAR SEAT ENTERTAINMENT W/O FULL FEATURE CENTER W/O ONSTAR WHT WIRE WHT/GRN WIRE YEL WIRE

1-VT 2 PU 2-BU 2-VT BATT POS VOLT BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLU WIRE BLU/GRN WIRE CAMERA SIGNAL 2 CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM ENABLE SIG GMLAN SERIAL DATA (+) 9 GPS GPS/CELL GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE (BELOW PASSENGER'S AIR BAG) LO SPD GMLAN SER DATA LOW REF LVDS MICROPHONE/AUDIO MOST CONTROL MOST SER DATA (+) MOST SERIAL DATA (+) NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION DISPLAY SIG NAVIGATION SYSTEM NETWORK BUS 5 RED WIRE RED/GRN WIRE RED/VIO WIRE REMOTE MEDIA EJECT SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RSE FUSE SOUND SYSTEMS USB USB SERIAL DATA VIDEO SYSTEM CIRCUIT W/ ONSTAR W/O ONSTAR WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE

BATT POS VOLT BLK WIRE BLK/YEL WIRE BUS 12 COMPUTER DATA LINES SYSTEM DOWN GMC/ CHEVROLET GRN WIRE GRN/BLK WIRE GROUND HANG-UP SIG HOT AT ALL TIMES IPC FUSE LEFT LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH NETWORK RECOGNITION RED/GRY WIRE RED/YEL WIRE RIGHT RIGHT INSTRUMENT PANEL FUSE BLOCK SEEK DOWN SEEK UP SEL SIG STEERING WHEEL AIR BAG COIL SWC FUSE VOICE VOL (-)

AMP FUSE AUDIO AMPLIFIER (LEFT REAR QUARTER PANEL TRIM) BATTERY POSITIVE VOLTAGE SUBWOOFER SPEAKER (-) RF SPEAKER SIGNAL (-) (1) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TRIM PANEL SPEAKER LEFT SPEAKER (-) LF SPEAKER (+) (1) LF SPEAKER SIGNAL (-) (1) LO SPD GMLAN SERIAL DATA LR SPEAKER (+) LR SPEAKER SIGNAL (-) MIC LOW REF 1 MIC LOW REF 2 MIC LOW REF 3 MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NOISE REDUCTION MIC SIG 1 NOISE REDUCTION MIC SIG 2 NOISE REDUCTION MIC SIG 3 REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/YEL WIRE REPLICATED SIGNAL RF SPEAKER (+) (1) RF SPEAKER (+) (1) SUBWOOFER SPEAKER (+) RF SPEAKER SIGNAL (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT SPEAKER (+) RR SPEAKER (+) RR SPEAKER SIGNAL (-) SUBWOOFER SPEAKER VIO/BLU WIRE VIO/BRN WIRE W/O FRONT COMPARTMENT CONSOLE W/ FRONT COMPARTMENT CONSOLE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRY WIRE

BACK SIG BACKUP LAMP CTRL BAT POS VOLT BATT POS VOLT BLK WIRE BLU WIRE BLU/YEL WIRE BUS 12 CAMERA LOW REF CAMERA SIG 2 COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIG + DOWN SIG FORWARD SIG GMC/ CHEVROLET GMLAN SERIAL DATA GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INFOTAINMENT DISPLAY SIG IPC FUSE LEFT LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LVDS MUTE NAVIGATION SYSTEM NETWORK NETWORK BUS 10 NETWORK BUS 5 NETWORK BUS 9 POWER DISTRIBUTION SYSTEM RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RADIO/HVAC CONTROLS RAP RLY COIL CTRL RED/GRY WIRE RED/YEL WIRE RIGHT SERIAL DATA BUS 5 SIG GROUND SOURCE UP SIG VOICE VOL VOL WHT/BLU WIRE WHT/YEL WIRE YEL/BLU WIRE

AMP FUSE AUDIO AMPLIFIER (LEFT REAR QUARTER PANEL TRIM) BATTERY POSITIVE VOLTAGE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE FRONT CENTER SPEAKER (+) GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR TWEETER SPEAKER LEFT FRONT DOOR WOOFER SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TWEETER SPEAKER LF SPEAKER (+) (1) LF SPEAKER SIGNAL (-) (1) LF TWEETER SPEAKER (+) LO SPD GMLAN SERIAL DATA LR MIDRANGE SPEAKER (-) LR SPEAKER (+) LR SPEAKER SIGNAL (-) MIC LOW REF 1 MIC LOW REF 2 MIC LOW REF 3 MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NOISE REDUCTION MIC SIG 1 NOISE REDUCTION MIC SIG 2 NOISE REDUCTION MIC SIG 3 REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/YEL WIRE REPLICATED SIGNAL RF SPEAKER (+) (1) RF SPEAKER SIGNAL (-) (1) RF TWEETER SPEAKER (+) RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR TWEETER SPEAKER RR SPEAKER (+) RR SPEAKER SIGNAL (-) SUBWOOFER SPEAKER VIO/BLU WIRE VIO/BRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

AMP FUSE AUDIO AMPLIFIER (LEFT REAR QUARTER PANEL TRIM) BATTERY POSITIVE VOLTAGE SUBWOOFER SPEAKER (-) RF SPEAKER SIGNAL (-) (1) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE CENTER INSTRUMENT PANEL SPEAKER CENTER SPEAKER COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR TRIM PANEL SPEAKER LEFT SPEAKER (-) LF SPEAKER (+) (1) LF SPEAKER SIGNAL (-) (1) LO SPD GMLAN SERIAL DATA LR SPEAKER (+) LR SPEAKER SIGNAL (-) LR TRIM PANEL SPEAKER (-) MIC LOW REF 1 MIC LOW REF 2 MIC LOW REF 3 MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NOISE REDUCTION MIC SIG 1 NOISE REDUCTION MIC SIG 2 NOISE REDUCTION MIC SIG 3 REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/YEL WIRE REPLICATED SIGNAL RF SPEAKER (+) (1) RF SPEAKER (+) (1) SUBWOOFER SPEAKER (+) RF SPEAKER SIGNAL (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RIGHT SPEAKER (+) RR SPEAKER (+) RR SPEAKER SIGNAL (-) SUBWOOFER SPEAKER VIO/BLU WIRE VIO/BRN WIRE W/O FRONT COMPARTMENT CONSOLE W/ FRONT COMPARTMENT CONSOLE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

BATT POS VOLT BLK/BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/YEL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/BRN WIRE GRY WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES INSTRUMENT PANEL JUNCTION BLOCK LED DISABLE SIG LEFT FRONT MIDDLE PARKING ASSIST SENSOR LEFT REAR MIDDLE PARKING ASSIST SENSOR LEFT/RIGHT/MID SENS LF CORNER SENS SIG LF MIDDLE SENS SIG LF SUPPLEMENTAL OBJECT SENS SIG LOW SPD GMLAN SERIAL DATA LR CORNER SENS SIG LR MIDDLE SENS SIG LR OBJECT SENS SIG PARKING ASSIST CONTROL MODULE (BEHIND LEFT SIDE REAR SEAT) RED/GRN WIRE RF CORNER SENS SIG RF MIDDLE SENS SIG RF SUPPLEMENTAL OBJECT SENS SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RR CORNER SENS SIG RR MIDDLE SENS SIG RR SUPPLEMENTAL OBJECT SENS SIG RSE FUSE SENS LOW REF SENS SPLY VOLT SIG GND REAR PARK ASSIST DISABLE SIG USB/OBS DET FUSE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE