GMC Hummer EV I (2021-2024) nca Wiring diagrams

8 SER DATA 9 SER DATA AUTO SAR CAN BUS BATTERY MONITOR MODULE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MOD BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) CHARGE PORT HOUSING CHARGE PORT HOUSING LAMP COIL CONTROL DC/AC CONVERTER CONTROL MODULE DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE LEFT REAR SIDE DOOR WINDOW REGULATOR MOTOR LIN BUS 1 LIN BUS 11 LIN BUS 13 LIN BUS 16 LIN BUS 2 LIN BUS 4 LIN BUS 5 LIN BUS 6 LIN BUS 7 LIN BUS 9 LONG RANGE FORWARD RANGE RADAR SENSOR NCA WIRE PASSENGER FRONT SIDE DOOR WINDOW CONTROL SWITCH PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR REAR PROGRAMMABLE MODE VALVE ACTUATOR REAR PROGRAMMABLE TEMPERATURE VALVE ACTUATOR REMOTE FUNCTION ACTUATOR MODULE RIGHT REAR SIDE DOOR WINDOW REGULATOR MOTOR RUN/CRANK RLY TRAILER TIRE PRESSURE INDICATOR MODULE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WINDSHIELD OUTSIDE MOISTURE/ AMBIENT LIGHT, HUMIDITY SENSOR YEL WIRE

BLK WIRE BRN/VIO WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES LEFT FRONT CENTER READING LAMP LEFT REAR SIDE DOOR INSIDE HANDLE ILLUMINATION LAMP LEFT REAR SIDE DOOR POCKET ILLUMINATION LAMP LEFT SUNSHADE LEFT SUNSHADE MIRROR LAMP LOGIC NCA WIRE RED/GRY WIRE RIGHT FRONT CENTER READING LAMP RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RIGHT REAR SIDE DOOR INSIDE HANDLE ILLUMINATION LAMP RIGHT REAR SIDE DOOR POCKET ILLUMINATION LAMP RIGHT SUNSHADE RIGHT SUNSHADE MIRROR LAMP WHT/BLK WIRE WHT/YEL WIRE

AUTOSAR CAN BUS (+) 5 SERIAL DATA AUTOSAR CAN BUS (-) 9 SERIAL DATA BLK WIRE BLK/WHT WIRE BLU/GRN WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DISPLAY DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR ENGINE WIRING HARNESS JUNCTION BLOCK GRN/YEL WIRE HOT AT ALL TIMES LOGIC NCA WIRE PASSENGER FRONT SIDE DOOR WINDOW SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS RADIO CONTROL REAR DEFOGGER REAR DEFOGGER RLY CTRL REAR DEFOGGER SWITCH REAR WINDOW DEFOGGER GRID REAR WINDOW DEFOGGER RELAY RED/GRY WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK WHT WIRE WHT/GRN WIRE

BATT POS VOLTAGE BLK WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT BACK LUMBAR PUMP DRIVER FRONT SEAT BLADDER CONTROL MODULE DRV SEAT ADJUSTER MEMORY MODULE LIN BUS 2 DRV SEAT LUMBAR/ BOLSTER PUMP CTRL DRV SEAT BOLSTER PUMP LOW REF GRN/GRY WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC NCA WIRE RED WIRE RED/BRN WIRE WHT/BLU WIRE

BAT POS VOLT BLK WIRE BLK/VIO WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE CAN BUS (+) 4 SERIAL DATA COMPUTER DATA LINES SYSTEM DOWN DRIVER FRONT SEAT ADJUSTER MEMORY SWITCH DRIVER FRONT SEAT ADJUSTER SWITCH DRIVER FRONT SEAT LUMBAR SWITCH DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRV SEAT ADJUSTER MEMORY MOD LIN BUS 1 CAN BUS (-) 4 SERIAL DATA DRV SEAT ADJUSTER MEMORY MOD LIN BUS 2 CAN BUS (-) 4 SERIAL DATA EXIT GRN/GRY WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FRONT SEAT LANE DEPARTURE WARNING ACTUATOR LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC NCA WIRE RECLINE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT SEAT LANE DEPARTURE WARNING ACTUATOR RR SEAT HAPTIC MOVEMENT MTR CTRL LR SEAT HAPTIC MOVEMENT MTR CTRL RWD SEAT MEMORY SW SET SIG SEAT MEMORY SW SIG 1 SET- WHT WIRE YEL/BRN WIRE

BATT POS VOLT BLK WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT ADJUSTER ACTUATOR DRIVER FRONT SEAT BACK LUMBAR PUMP DRIVER FRONT SEAT BLADDER CONTROL MODULE DRIVER FRONT SEAT RECLINER ACTUATOR DRIVER FRONT SEAT TILT ADJUSTER ACTUATOR DRIVER FRONT SEAT VERTICAL ADJUSTER ACTUATOR DRIVER SEAT ADJUSTER MEMORY MODULE DRV SEAT ADJUSTER MEMORY MOD LIN BUS 2 DRV SEAT LUMBAR/ BOLSTER PUMP CTRL FRONT VERTICAL MTR DWN CTRL FRONT VERTICAL MTR UP CTRL GND DRV SEAT BOLSTER PUMP LO REFR GRN/BRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HORIZONTAL MTR FORWARD CTRL HORIZONTAL MTR REARWARD CTRL LOGIC NCA WIRE REAR VERTICAL MTR DWN CTRL REAR VERTICAL MTR UP CTRL RECLINE MTR FORWARD CTRL RECLINE MTR REARWARD CTRL RED/WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE

BAT POS VOLT BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/VIO WIRE BRN/BLK WIRE CAN BUS (+) 4 SERIAL DATA CAN BUS (+) 4 SERIAL DATA SEAT MEMORY SW SET SIG COAX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DEFOGGER, EXTERIOR LIGHTS, NAVIGATION SYSTEMS DOWN DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR EXTERIOR FLOOD LAMP DRIVER OUTSIDE REAR VIEW MIRROR FOLDING ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRIVER SIDE OBJECT DETECTION INDICATOR FOLDING SWITCH GRN/YEL WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT SIDE VIEW DRIVER INFORMATION CAMERA LOGIC MIRROR DIMMING MIRRORS SYSTEM NAVIGATION SYSTEM NCA WIRE RED/VIO WIRE RED/YEL WIRE RIGHT RWD SEAT MEMORY SW SIG 1 VIO/BLU WIRE VIO/RED WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/WHT WIRE

BLK WIRE BLK/GRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE COAX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DEFOGGER, EXTERIOR LIGHTS, NAVIGATION SYSTEMS DRIVER FRONT SEAT ADJUSTER MEMORY SWITCH EXIT GRN/BLK WIRE GRN/YEL WIRE GRY WIRE LOGIC NAVIGATION SYSTEM NCA WIRE PASSENGER FRONT SIDE DOOR WINDOW SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR ACTUATOR PASSENGER OUTSIDE REAR VIEW MIRROR EXTERIOR FLOOD LAMP PASSENGER OUTSIDE REAR VIEW MIRROR FOLDING ACTUATOR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SIDE OBJECT DETECTION INDICATOR RED/VIO WIRE RIGHT SIDE VIEW DRIVER INFORMATION CAMERA SET- VIO/WHT WIRE WHT WIRE WHT/GRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BAT POS VOLT BATT POS VOLT BLK WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/GRY WIRE CAN BUS (+) 4 SERIAL DATA CAN BUS (+) 4 SERIAL DATA SEAT MEMORY SW SET SIG COMPUTER DATA LINES SYSTEM DOWN DRIVER FRONT SEAT ADJUSTER MEMORY SWITCH DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRV SEAT ADJUSTER MEM MOD LIN BUS 1 EXIT GRN/BRN WIRE GRN/WHT WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK NCA WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RWD SEAT MEMORY SW SIG 1 SET- STEERING COLUMN CONTROL MODULE STEERING COLUMN TELESCOPE ACTUATOR STEERING COLUMN TILT WHEEL ACTUATOR STEERING COLUMN TILT WHEEL, TELESCOPE SWITCH STRG CLMN TELESCOPE MOTOR FWD CTRL STRG CLMN TELESCOPE MOTOR LO REF STRG CLMN TELESCOPE MOTOR RRWD CTRL STRG CLMN TELESCOPE MOTOR SIG STRG CLMN TILT MTR DOWN CTRL STRG CLMN TILT MTR LO REF STRG CLMN TILT MTR SIG STRG CLMN TILT MTR UP CTRL STRG CLMN TILT, TELESCOPE SW DOWN SIG STRG CLMN TILT, TELESCOPE SW FEEDBACK SIG STRG CLMN TILT, TELESCOPE SW FWD SIG STRG CLMN TILT, TELESCOPE SW RRWD SIG STRG CLMN TILT, TELESCOPE SW UP SIG VIO/BLK WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP 1 AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP 2 AUTOSAR CAN BUS (-) 2 SER DATA BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVE MOTOR CONTROL MODULE 1 DRIVE MOTOR CONTROL MODULE 2 DRIVE UNIT SUMP OIL TEMP SENSOR 2 LOW REFERENCE DRIVE UNIT SUMP OIL TEMP SENSOR 2 SIGNAL ENGINE WIRING HARNESS JUNCTION BLOCK FRONT DIFFERENTIAL LOCKING ACTUATOR FRONT DRIVE UNIT FLUID TEMPERATURE SENSOR FRONT ELECTRIC DRIVE TRANSMISSION MODULE GRN/BLU WIRE HIGH SPD SER DATA (+) (1) HIGH SPD SER DATA (-) 3 HOT AT ALL TIMES LOGIC MANUAL SHIFT SHAFT MOTOR NCA WIRE PRNDL A SIGNAL PRNDL B SIGNAL PRNDL P SIGNAL REAR DRIVE UNIT FLUID TEMPERATURE SENSOR REAR ELECTRIC DRIVE TRANSMISSION MODULE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE TRANSMISSION OIL PUMP 2 CONTROL TRANSMISSION OIL PUMP 2 DIAGNOSTIC FEEDBACK SIGNAL TRANSMISSION OIL PUMP CONTROL TRANSMISSION OIL PUMP DIAGNOSTIC FEEDBACK SIGNAL TRANSMISSION PARK POSITION SENSOR VIO/BLK WIRE VIO/RED WIRE VIO/WHT WIRE VOLTAGE SUPPLY A WHT WIRE WHT/BLK WIRE WHT/GRY WIRE YEL/GRY WIRE