GMC Yukon III (2006-2014) computer data lines system Wiring diagrams

ACCESSORY WAKE UP SERIAL DATA AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION MANUAL SHIFT SWITCH AUTOMATIC TRANSMISSION SHIFT LEVER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DK BLU WIRE FROM CONTROL SOLENOID VALVE ASSEMBLY (DIAGRAM 1 OF 2) GMLAN GMLAN SERIAL SERIAL DATA DATA BUS - BUS + GMLAN SERIAL DATA BUS + GRN WIRE GROUND GRY WIRE INPUT SPEED SENSOR (ISS) INPUT SPEED SENSOR (ISS) SIGNAL ISS/OSS CTRL LT BLU WIRE NCA WIRE OUTPUT SPEED SENSOR (OSS) OUTPUT SPEED SENSOR (OSS) SIGNAL PNK WIRE PPL RED WIRE TAN WIRE TAN/BLK WIRE TAP TOW/ UP/ HAUL TAP SW DOWN SIG SW SIG TFP SWITCH 1 VOLTAGE TFP SWITCH 3 VOLTAGE TFP SWITCH 4 VOLTAGE TFP SWITCH 5 VOLTAGE TOW/ HAUL SWITCH TRANSMISSION CONTROL MODULE (TCM) CONTROL SOLENOID VALVE ASSEMBLY TRANSMISSION RANGE SWITCH SIG A TRANSMISSION RANGE SWITCH SIG B TRANSMISSION RANGE SWITCH SIG C TRANSMISSION RANGE SWITCH SIG P WHT WIRE YEL WIRE

2 HI 2-HI IND 4 HI 4 LO 4-HI IND 4-LO IND 5 VOL REF ENCODER SIG 8 VOL REF LOW REF SW SIG PPL AUTO AUX HVAC-IGN FUSE 48 B+ GND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) BRAKE CONTROL BRN WIRE BRN/WHT WIRE CADILLAC GMC, CHEVROLET COMPUTER DATA LINES SYSTEM DATA SER DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENCODER TRANSFER CASE ENCODER MOTOR (LEFT SIDE OF TRANSFER CASE) FRONT AXLE ACTUATOR (FRONT AXLE HOUSING) FRONT PROPSHAFT SPEED SENSOR (LEFT SIDE OF TRANSFER CASE) FUSE 19 GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IGN VOLT ILLUMINATION INSTRUMENT PANEL CLUSTER (IPC) LAMP LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LOCK SOL CTRL LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MISC-IGN FUSE 43 MOTOR CTRL B MOTOR CTRL A NCA WIRE NEUT NEUTRAL IND NEUTRAL IND CTRL ORG/ WIRE ORG/WHT WIRE PNK AWD IND CTRL AXLE ACTUATOR CTRL WIRE PNK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE REAR PROPSHAFT SPEED SENSOR (TRANSFER CASE EXTENSION HOUSING) RED/BLK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSFER CASE SHIFT CONTROL MODULE (LEFT END OF DASH) TRANSFER CASE SHIFT CONTROL SWITCH TREC FUSE 67 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE W/ ACTIVE TWO SPEED TRANSFER CASE CONTROL W/ HEATED STEERING WHEEL WAKE UP SIG WHT WIRE WHT/LT GRN WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 AIR TMP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 B(+) A/C ON IND A/C ON SWITCH AIR TEMP PASS SUNLD SNS SIG SNS SIG AMB TMP GMLAN L AMBIENT LIGHT/ SUNLOAD SENSOR ASSEMBLY BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE FRESH AIR IND FRESH AIR REQUEST SWITCH FRONT DEFOGGER IND FRONT DEFOGGER SWITCH FRONT INSIDE AIR TEMPERATURE SENSOR (LEFT FRONT OF HEADLINER) GROUND IGN VOLT RER DEFG 300 193 GROUND LOW REF GRY WIRE GRY/BLK WIRE HVAC AMBIENT AIR TEMPERATURE SENSOR (RIGHT FRONT OF ENGINE COMPT) HVAC CONTROL MODULE JUNCTION BLOCK (LEFT END OF DASH) LEFT TEMPERATURE CONTROL LOGIC LONG WHEEL BASE LOW REF LOWER AUXILIARY AIR TEMPERATURE SENSOR (REAR HVAC MODULE) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE DOWN SWITCH MODE UP SWITCH OF DASH) ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM DEFOGGER SYSTEM PPL PPL/WHT WIRE R AIR TMP AIR TMP AIR TMP TEMP SIG MODE CTRL L AIR TMP RECIR CTRL AIR TMP REAR DEFOGGER IND REAR DEFOGGER SWITCH RECIRCU- LATION IND RECIRCU- LATION SWITCH RED WIRE RED/WHT WIRE RIGHT TEMPERATURE CONTROL SHORT WHEEL BASE SNS SIG LF SUNLD L AIR TMP R AIR TMP SW SIG MODE CNTRL SPD CTRL TAN WIRE UPPER AUXILIARY AIR TEMPERATURE SENSOR UPPER LEFT AIR TEMPERATURE SENSOR UPPER RIGHT AIR TEMPERATURE SENSOR WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

21 22 SENS SIG LOW REF A/C CMPRSR FUSE 17 A/C CMPRSR RELAY AUX HVAC-IGN FUSE 48 BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (FRONT OF LEFT CYLINDER HEAD) GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ PWR/TRN RELAY ENERGIZED HVAC BATT FUSE 39 HVAC BLWR FUSE 70 HVAC-IGN FUSE 55 LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE ORG/BLK WIRE PNK WIRE PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (RIGHT END OF DASH) RUN/ CRANK RELAY TAN WIRE TAN/BLK WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ HEATED STEERING WHEEL WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

3 4 5 6 7 8 9 10 11 12 13 14 15 16 MDE CNTRL TEMP CNTRL LOW REF AUTO SWITCH AUXILIARY AIR TEMPERATURE ACTUATOR (REAR HVAC MODULE ASSEMBLY) AUXILIARY BLOWER MOTOR CONTROL MODULE AUXILIARY INSIDE AIR TEMPERATURE SENSOR AUXILIARY MODE ACTUATOR (REAR HVAC MODULE) BLK WIRE BLOWER SPEED DOWN SWITCH BLOWER SPEED UP SWITCH BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE GMLAN GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK LOGIC LOGIC BLOWER SPEED UP SWITCH LONG WHEEL BASE LOW REF MODE SWITCH MTR CNTRL ORG/ WIRE PNK PNK WIRE PNK WIRE REAR HVAC FUSE (LEFT END OF DASH) REAR SEAT AUDIO (RSA) CONTROL RED/WHT WIRE SHORT WHEEL BASE SNS CNTRL SPD CTRL TEMPERATURE DOWN SWITCH TEMPERATURE UP SWITCH WHT WIRE YEL WIRE YEL/BLK WIRE

5 8 9 24 WIPER SW HI SIG LOW REF WIPER SW LO SIG WASHER SW SIG 7 15 196 2268 MTR PARK SW SIG WASHER RLY CTRL BATT + BCM FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) CHEVROLET/GMC CADILLAC COMPUTER DATA LINES SYSTEM DK GRN WIRE FRT WASH FUSE 7 FRT WASH PCB RELAY FRT WIPER SW HI SIG FRT WPR FUSE 36 GMLAN SERIAL DATA BUS + GROUND DISTRIBUTION SYSTEM LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT END OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT BLU WIRE LT GRN WIRE MIST MIST OFF LO OFF PULSE WIPER SWITCH ORG/ WIRE PNK WIRE PPL PULSE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WASHER SWITCH WINDSHIELD WASHER FLUID LEVEL SWITCH (WASHER FLUID RESERVOIR) WINDSHIELD WASHER FLUID PUMP (WASHER FLUID RESERVOIR) WINDSHIELD WIPER MOTOR (LEFT REAR OF ENGINE COMPT) WINDSHIELD WIPER SW SIG 2 WIPER 1 PCB RELAY WIPER 2 PCB RELAY YEL WIRE

1 2 3 5704 6188 5706 ENDGATE RLY COIL L/GLASS CTRL ENDGATE RLY COIL 13 12 24 REAR SW OPEN SIG LIFTGATE AJAR SW L/GLASS SIG BLK PNK/ WIRE BLK WIRE BLU LT WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) CHEVROLET/ GMC CADILLAC COMPUTER DATA LINES SYSTEM CONNECTOR ADAPTER DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY GMLAN SERIAL GRY WIRE HOT AT ALL TIMES GENERATOR INLINE FUSE HOT AT ALL TIMES I/P FUSE BLOCK RT STOP (LEFT END TURN OF DASH) FUSE L/GATE PCB RELAY L/GATE RELSE FUSE 44 LIFTGATE HANDLE SWITCH LIFTGATE LATCH ASSEMBLY (CENTER OF LIFTGATE) LIFTGATE WINDOW LATCH ASSEMBLY LIFTGATE WINDOW LIFTGATE WINDOW AJAR SWITCH RELEASE ACTUATOR LIFTGATE WINDOW RELEASE SWITCH LOGIC LOGIC INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE NCA WIRE PNK PNK WIRE PNK/BLK WIRE REAR WINDOW WIPER MOTOR (CENTER OF LIFTGATE) RED/BLK WIRE RED/WHT WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WIPER/ WASHER SYSTEM YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 MTR OPEN MTR CLOSE 1 2 3 4 5 6 LATCH MTR OPEN LATCH MTR CLOSE B+ B+ AJAR SW SIG OPEN/CLOSE SW BLK WIRE BRN WIRE BRN/WHT WIRE CHEVROLET/ GMC CADILLAC COMPUTER DATA LINES SYSTEM CONNECTOR ADAPTER DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGAGE CTRL DIS ENGAGE CTRL GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT END OF DASH) INSTRUMENT PANEL CLUSTER (IPC) INTERIOR LIFTGATE CONTROL SWITCH LEFT LIFTGATE OBJECT SENSOR (LEFT EDGE OF LIFTGATE) LGM FUSE 71 LIFTGATE ACTUATOR ASSEMBLY LIFTGATE ACTUATOR CLUTCH LIFTGATE ACTUATOR MOTOR LIFTGATE ACTUATOR SWITCH LIFTGATE CLOSE SWITCH (BOTTOM RIGHT OF LIFT GATE) LIFTGATE HANDLE SWITCH LIFTGATE LATCH ASSEMBLY (CENTER OF LIFTGATE) LIFTGATE WINDOW AJAR SWITCH LIFTGATE WINDOW LATCH ASSEMBLY LOGIC LOW REF LT BLU WIRE LT BLU/WHT WIRE NCA WIRE OBS DET FUSE OPEN SW SIG RTN ORG/ WIRE PNK/BLK WIRE POWER LIFTGATE MODULE (LEFT REAR OF CARGO AREA) PPL PPL/WHT WIRE RED/BLK WIRE RED/WHT WIRE RIGHT LIFTGATE OBJECT SENSOR (RIGHT EDGE OF LIFTGATE) SIG RTN POS SIG 1 POS SIG 2 SIG RTN SW OPEN SIG SW SIGNAL TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM

10 VOLT REF 10 VOLT REF SENS LEFT SIG SENS RIGHT SIG LOW REFERENCE LOW REFERENCE BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ELEC RUN BOARD FUSE 65 GMLAN SERIAL GMLAN SERIAL DISABLE SIGNAL GRY WIRE HOT AT ALL TIMES I/P MULTI-FUNCTION SWITCH CHEVROLET, GMC CADILLAC LEFT RUNNING BOARD (UNDER LEFT SIDE OF VEHICLE) LOGIC ASSIST STEP CONTROL MODULE (UNDER LEFT CENTER OF VEHICLE) LT GRN WIRE ORG/ WIRE PNK WIRE PPL R CTRL RETRACT GROUND L CTRL EXTEND R CTRL EXTEND BATT L CTRL RETRACT RED/BLK WIRE RIGHT RUNNING BOARD (UNDER RIGHT SIDE OF VEHICLE) TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/O SIDE OBSTACLE DETECTION SENSOR W/ OBSTACLE DETECTION SENSOR YEL WIRE YEL/BLK WIRE

14 15 RR AJAR SW LR AJAR SW 2 3 5 8 9 10 B+ B+ GND BUS (+) BUS (-) GMLAN 2 8 12 17 B+ PRK LP SIG HDLP ON SIG HDLP OFF SIG 4 9 B+ GND 41 43 44 45 DRV SEAT SIG LOW REF LOW REF PASS SEAT SIG 450 (OR 451) 5 13 9 LOW REF LF AJAR SIG GMLAN 9 5 13 COMPUTER DATA LINES SYSTEM GMLAN LOW REF RF AJAR SIG BCM FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH (BRAKE FLUID RESERVOIR) BRAKE IND CHEVROLET/GMC CADILLAC COMPUTER DATA LINES SYSTEM DIM FUSE DK BLU WIRE DK GRN WIRE DLIS FUSE 35 DOOR DRIVER DOOR LATCH ASSEMBLY (DRIVER'S DOOR) DRIVER DOOR LOCK/WINDOW SWITCH DRIVER INFORMATION CENTER DISPLAY (DIC) DRIVER SEAT BELT BUCKLE (DRIVER'S SEAT BELT BUCKLE) DRIVER SEAT BELT SWITCH GRY/BLK WIRE HEAD HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES HYBRID EXCEPT HYBRID I/P FUSE BLOCK IGN IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) INSTRUMENT PANEL CLUSTER (IPC) IS LAMPS FUSE KEY-IN SWITCH LEFT I/P JUNCTION BLOCK (LEFT END OF DASH) LEFT REAR DOOR LATCH ASSEMBLY (LEFT REAR DOOR) LOGIC LOW TIRE PRESSURE IND LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OFF ORG/ WIRE PARK AUTO OFF PARK BRAKE SWITCH (PARK BRAKE ASSEMBLY) PASSENGER DOOR LATCH ASSEMBLY (FRONT PASSENGER'S PASSENGER DOOR LOCK/WINDOW SWITCH PNK WIRE PNK/BLK WIRE PPL PRK BRK SW RADIO RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY (RIGHT REAR DOOR) RUN WIRE SEAT BELT IND SERIAL DATA STOP LAMPS FUSE SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM PNK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPARTMENT) W/O NON- BUCKET INDIVIDUAL SEAT W/ NON-BUCKET INDIVIDUAL SEAT W/O NON-BUCKET FRONT INDIVIDUAL SEAT W/ NON-BUCKET FRONT INDIVIDUAL SEAT WHT WIRE YEL WIRE