Chevrolet Traverse II (2017-2021) computer data lines system Wiring diagrams

1 SHIFT SOL VALVE CTRL 2 SHIFT SOL VALVE CTRL ACCESSORY WAKEUP SERIAL DATA AUTOMATIC TRANSMISSION ACCUMULATOR SOLENOID VALVE BATT POSITIVE VOLT BATT POSITIVE VOLT REGULATED SUPPLY BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CLUTCH A CTRL CLUTCH B CTRL CLUTCH C CTRL CLUTCH D CTRL CLUTCH E CTRL COMPUTER DATA LINES SYSTEM DATA DC DC TRANS 1 FUSE DRIVER INFORMATION CENTER DISPLAY ETRS OUT OF PARK SW 2 SIG ETRS OUT OF PARK SW SIG ETRS SW ANALOG SIG 1 ETRS SW ANALOG SIG 2 GRN WIRE GRN/GRY WIRE GRN/PPL WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE CTRL IN SPD SIG INSTRUMENT CLUSTER LOGIC NETWORK SERIAL DATA BUS 20 OUT SPD SIG PARK LOCK SOL CTRL POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER PPL PPL/BLK WIRE PPL/WHT WIRE PPL/YEL WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RUN/CRANK IGNITION 1 VOLT SIG GND TCC/CLUTCH SOL A CTRL TCM BATT FUSE TCM/ IGN FUSE TRANS CLUTCH F CTRL TRANS CLUTCH G CTRL TRANS CLUTCH H CTRL TRANS HI SIDE DRV 1 SIG TRANS HI SIDE DRV 2 SIG TRANS INTERMEDIATE SPD SIG TRANS OIL TEMP SENS LO REF TRANS OIL TEMP SENS SIG TRANSMISSION CONTROL MODULE (TOP FRONT OF TRANSMISSION) TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INPUT/ INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR UNDERHOOD FUSE BLOCK VOLTAGE 2 WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/PPL WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

BATT POSITIVE VOLT BCM 3 FUSE BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BRN WIRE BODY CONTROL MODULE (FRONT OF CENTER CONSOLE) BRN WIRE BRN/WHT WIRE CAPTURE/COLUMN LOCK SHIFT POSITION SIG CHEVROLET COMPUTER DATA LINES SYSTEM DISPLAY SIG TRANS SHIFT SELECTOR GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES ILL INSTRUMENT PANEL FUSE BLOCK LEFT TRANSMISSION MANUAL SHIFT SWITCH LIN SERIAL DATA BUS 2 PARK LOCK SOLENOID CTRL PARK POSITION SWITCH POWER DISTRIBUTION SYSTEM PPL PPL/BLK WIRE PPL/WHT WIRE PPL/YEL WIRE RAP RELAY SW CTRL RED/GRY WIRE RETAINED ACCESSORY POWER FUSE CTRL RIGHT TRANSMISSION MANUAL SHIFT SWITCH SIG GND STEERING WHEEL AIR BAG COIL TAP UP/TAP DOWN SW SIG TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER POSITION INDICATOR TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/PPL WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

2.0L TURBO 3.6L AUTOMATIC TRANSMISSION ASSEMBLY BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BRN WIRE BRN/WHT WIRE CHEVROLET COMPUTER DATA LINES SYSTEM GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (+) (3) IGN MODE SW MODE CTRL BACKUP NCA WIRE PPL PPL/BLK WIRE PPL/WHT WIRE TRANSMISSION CONTROL SOLENOID VALVE 1 TRANSMISSION CONTROL SOLENOID VALVE 10 TRANSMISSION CONTROL SOLENOID VALVE 2 TRANSMISSION CONTROL SOLENOID VALVE 3 TRANSMISSION CONTROL SOLENOID VALVE 4 TRANSMISSION CONTROL SOLENOID VALVE 5 TRANSMISSION CONTROL SOLENOID VALVE 6 TRANSMISSION CONTROL SOLENOID VALVE 7 TRANSMISSION CONTROL SOLENOID VALVE 8 TRANSMISSION CONTROL SOLENOID VALVE 9 TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSION PARK VALVE LOCK SOLENOID ACTUATOR TRANSMISSION PARK VALVE POSITION SWITCH TRANSMISSION RANGE CONTROL VALVE 1 POSITION SWITCH TRANSMISSION RANGE CONTROL VALVE 2 POSITION SWITCH VIO WIRE VIO/BLK WIRE VIO/YEL WIRE WAKEUP SERIAL DATA WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

ACCESSORY WAKEUP SERIAL DATA BATT POS VOLT BATT POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/PPL WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE CHASSIS CONTROL MODULE (UNDER FRONT OF CENTER CONSOLE) COMPUTER DATA LINES SYSTEM DATA BUS 20 ETRS FUSE GMLAN SERIAL DATA - 1 GMLAN SERIAL DATA 2 GRN/GRY WIRE GRN/RED WIRE GROUND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ICCM FUSE ILL INSTRUMENT PANEL FUSE BLOCK LOGIC NCA WIRE NETWORK SERIAL DATA BUS 20 PPL/BLU WIRE PPL/BRN WIRE PPL/GRN WIRE PPL/YEL WIRE RED/GRN WIRE RUN/CRANK IGNITION 1 VOLT SHIFT INTERLOCK SW 1 RTN SHIFT INTERLOCK SW 1 SIG SHIFT INTERLOCK SW 2 RTN SHIFTER PARK POS SW 1 RTN SHIFTER PARK POS SW 1 SIG SHIFTER PARK POS SW 2 RTN SHIFTER PARK POS SW 2 SIG SHIFTER POS SENS 1 ALPHA SIG SHIFTER POS SENS 1 BETA SIG SHIFTER POS SENS 1 LOW REF SHIFTER POS SENS 1 VOLT REF SHIFTER POS SENS 2 SHIFTER POS SENS 2 BETA SIG SHIFTER POS SENS 2 LOW REF SHIFTER POS SENS ALPHA SIG TRANS SHIFT INTERLOCK SW 2 SIG TRANSMISSION SHIFT LEVER (BUICK) TRANSMISSION SHIFT LEVER KNOB TRANSMISSION SHIFT LEVER POSITION INDICATOR UNDERHOOD FUSE BLOCK WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL/BLU WIRE YEL/BRN WIRE

"CHECK ENGINE" IND CTRL ABS IND. AIR BAG IND BATT POS BATT POS VOLT BLK WIRE BLK/BRN WIRE BRAKE IND BRN/WHT WIRE CHARGE IND COMPUTER DATA LINES SYSTEM CRUISE IND DATA BUS 4 DC DC TRANS 1 FUSE DOOR AJAR IND DOOR LOCK IND DRIVER INFORMATION CENTER DISPLAY DRIVER INFORMATION CENTER SELECT MENU SWITCH SIGNAL DRIVER INFORMATION CENTER SW LOW REF DRIVER INFORMATION CENTER SW SIG DRIVER SEAT BELT IND ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL LEVEL IND FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FRONT PEDESTRIAN BRAKING SYSTEM IND FUEL GAUGE FUEL IND GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PPL WIRE GRY/YEL WIRE HIGH BEAM ASSIST IND HIGH BEAM IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ILLUMINATION INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK IPC FUSE KM/H MPH IND LANE DEPARTURE IND LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LEFT TURN IND LIN SERIAL LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 LOGIC LOW SPEED GMLAN SERIAL DATA 2 LOW WASHER FLUID IND CTRL LR DR AJAR MALFUNCTION IND MOST CONTROL MOST SERIAL DATA (-) 2 NAVIGATION SYSTEM PARK LAMP IND PARKING BRAKE LAMP IND POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER PPL PPL/BLK WIRE PPL/GRY WIRE REAR FOG LAMP IND RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE REFLECTED LED DISPLAY DIMMING CTRL RIGHT TURN IND RPM IND RUN/CRANK IGNITION 1 VOLTAGE SECURITY IND SERVICE ELECTRIC PARKING BRAKE IND SPEED IND SPEEDOMETER SPLY SW SIG TACHOMETER TIRE PRESSURE MONITOR IND TRACTION OFF IND UNDERHOOD FUSE BLOCK VEHICLE AHEAD IND VOLT VOLT 1 VSC IND VSC OFF IND WHT/GRN WIRE WHT/PPL WIRE WIPER/ WASHER SYSTEM

"CHECK ENGINE" IND CTRL 2.0L TURBO 3.6L AIR TEMPERATURE SENS SIG AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/PPL WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/PPL WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE FLUID SW SPLY VOLT BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL SWITCH ENGINE OIL PRESSURE SENSOR ENGINE OIL PRESSURE SWITCH FUEL PUMP, LEVEL SENSOR ASSEMBLY GRN/GRY WIRE GRY/RED WIRE HI SD GMLAN SL DT (-) 1 HIGH SPEED GMLAN SERIAL DATA (-) (1) NCA WIRE OIL LEVEL SW SIG OIL PRESSURE SENS SIG PARK BRAKE APPLY SW SIG PARK BRAKE APPLY SW VOL REF PARK BRAKE APPLY SW VOL REF PARK BRAKE APPLY SW SIG PARK BRAKE LEVEL SENS SIG PARK BRAKE RELEASE SW SIG PARK BRAKE RELEASE SW VOL REF PARK BRAKE SW SIG PARK BRAKE SWITCH PRIMARY FUEL LEVEL SENS SIG PRIMARY FUEL LEVEL SENSOR SECONDARY FUEL LEVEL SENS SIG SECONDARY FUEL LEVEL SENSOR FUEL LEVEL SENSOR ASSEMBLY SENS LOW REF SIGNAL GROUND WHT WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

BCM 1 FUSE BLK WIRE BLU/WHT WIRE BODY CONTROL MODULE (FRONT OF CENTER CONSOLE) COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENDGATE LATCH RELAY COIL CTRL ENDGATE LATCH RELAY CTRL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LIFTGATE AJAR SW SIG 1 LIFTGATE LATCH LIFTGATE UNLATCH RELAY LIFTGATE UNLATCH SWITCH LIN DATA BUS 12 LO SPD GMLAN SERIAL DATA LOGIC NCA WIRE PPL/GRY WIRE REAR BODY FUSE BLOCK REAR CLOSR FUSE REAR CLOSURE HANDLE RED/WHT WIRE SW OPEN SIG YEL WIRE YEL/BLU WIRE

2.0L TURBO 3.6L ABS FUSE ACC WAKEUP SER DATA BATT POS VOLT BLK WIRE BLU/BLK WIRE BRAKE BOOSTER PUMP MOTOR RELAY CHEVROLET COMPUTER DATA LINES SYSTEM DC DC TRANS 1 FUSE DC DC TRANS 2 FUSE EBCM FUSE ECM BATT FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE FROM IGNITION MAIN RELAY (DIAGRAM 2 OF 9) FRONT FOG LAMP RELAY HI SPD GMLAN SER DATA (+) 3 HORN RELAY LEFT HEADLAMP LOW BEAM RELAY LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LRBEC IGN FUSE POWER SUPPLY TRANSFORMER (UNDER FRONT OF CENTER CONSOLE) PPL/BLK WIRE PPL/YEL WIRE REAR WINDOW WASHER PUMP RELAY REAR WIPER MOTOR REAR WIPER RELAY REAR/WPR FUSE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLAMP LOW BEAM RELAY RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY RUN/CRANK IGN 1 VOLT STARTER ENABLE RLY CTRL STARTER PINION SOLENOID ACTUATOR RELAY STARTER RELAY STARTING/CHARGING SYSTEM STRTR 1 FUSE STRTR 2 FUSE TO ENGINE CONTROLS IGNITION RELAY (DIAGRAM 4 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 5 OF 9) TRAILER PARK LAMPS RELAY TRANSMISSION PARK POSITION RELAY VAC PMP FUSE WASH PMP FUSE WHT WIRE WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WPR FRT FUSE YEL/BLK WIRE

3/4 5 VOLT REF AJAR SW SIG 1 AJAR SW SIG 2 AJAR SW SIG 3 BLK WIRE BLK/GRN WIRE BLK/PPL WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 18 DRIVER INFORMATION CENTER DISPLAY GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY WIRE GRY/BLK WIRE GRY/PPL WIRE GRY/WHT WIRE HANDLE SW OPEN SIG HANDS-FREE LIFTGATE SENSOR CONTROL MODULE HFCLOSR RELSE FUSE HOT AT ALL TIMES ILL INSTRUMENT CLUSTER INTERIOR LIFTGATE CONTROL SWITCH L/GATE MTR FUSE LEFT LIFTGATE OBJECT SENSOR LGATE MDL FUSE LIFTGATE CLOSE SWITCH LIFTGATE CONTROL MODULE (CENTER LEFT SIDE OF LIFTGATE) LIFTGATE LATCH ASSEMBLY LIFTGATE MOTOR ASSEMBLY LIFTGATE UNLATCH SWITCH LIN DATA BUS 12 LIN SERIAL LIN SERIAL DATA BUS 18 LOGIC LOW REF LOW REF (1) LOW REF 2 LOWER HANDS-FREE LIFTGATE SENSOR MAX MTR CLOSE CTRL MTR OPEN CTRL MTR RELEASE SIG NCA WIRE OBJECT SENS SIG OFF ON/OFF SW SIG OPEN/CLOSE SW SIG POSITION SENS SIG 1 POSITION SENS SIG 2 PPL REAR BODY FUSE BLOCK REAR CLOSE OPEN REAR OPEN/ CLOSE SWITCH RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT LIFTGATE OBJECT SENSOR SENS SIG 1 SENS SIG 2 SHUT FACE SW LED CTRL SHUT FACE SW SIG UPPER HANDS-FREE LIFTGATE SENSOR W/O SIDE ACTIVE SAFETY W/ SIDE ACTIVE SAFETY WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLU WIRE

AWD IND AWD INDICATOR CTRL AWD POWER TRANSFER MTR AWD POWER TRANSFER MTR CTRL A BATT POSITIVE VOLT BATTERY POSITIVE VOLT BCM 3 FUSE BLK WIRE BLK/PPL WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (FRONT OF CENTER CONSOLE) BRN/GRN WIRE CHEVROLET COMPUTER DATA LINES SYSTEM DATA DIFFERENTIAL CLUTCH PUMP (NEAR BOTTOM OF REAR DIFFERENTIAL) DRIVE MODE SELECT SWITCH DRIVER INFORMATION CENTER DISPLAY GRN/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HI CTRL SIG HI SPD GMLAN DATA BUS (+) 1 BATTERY POSITIVE VOLT HI SPD GMLAN DATA BUS (+) 1 GND HI SPD GMLAN DATA BUS (+) 2 HI SPD GMLAN DATA BUS (-) 1 HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INDICATOR DIMMING CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC LOW CTRL SIG LOW REFERENCE NCA WIRE POWER TRANSFER UNIT SHIFT ACTUATOR PPL/BRN WIRE PPL/WHT WIRE R/D CNTRL FUSE REAR BODY FUSE BLOCK REAR DIFFERENTIAL CLUTCH CONTROL MODULE REAR DIFFERENTIAL CLUTCH SOLENOID VALVE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE SADS FUSE SENS LOW REF SENS SIG SENS VOLT REF SERIAL DATA COMM ENABLE SIG (1) SIG (2) SIG 3 SPLY VOLT U PHASE V PHASE VEHICLE STABILITY CONTROL SWITCH VIO WIRE W PHASE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/ORG WIRE WHT/PPL WIRE WHT/RED WIRE