Chevrolet Silverado T1XX (2019-2022) underhood fuse block Wiring diagrams

ACCESSORY WAKEUP SERIAL DATA BATT POS VOLT BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRK TRANS SHIFT INTERLOCK SOL CTRL BRN/BLU WIRE BRN/WHT WIRE CLUTCH C CTRL CLUTCH D CTRL CLUTCH E CTRL COMPUTER DATA LINES SYSTEM DEFAULT DISABLE SOL CTRL DRIVER INFORMATION CENTER DISPLAY ETHERNET BUS 7 (-) GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HI SP GMLAN HI SP GMLAN SER DATA (+) 1 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 1 (PINS: 39 TO 48 NOT USED) HI SPD GMLAN SERIAL DATA (-) 1 (PINS: 55 TO 62 NOT USED) 63 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE CTRL IN SPD SIG INSTRUMENT CLUSTER KEY CAPTURE SOLENOID ACTUATOR LOGIC OUTPUT SPD SIG POWER DISTRIBUTION SYSTEM RED/BLU WIRE RED/GRN WIRE RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGNITION 1 VOLT SER DATA (-) (1) SHIFT SEL SW PERFORMANCE SIG SHIFT SEL SW PRK SIG SIG GROUND STRG CLMN KEY CYLINDER LOCK SOL CTRL TAP UP/TAP DOWN SW SIG TORQUE CONV CLTH SOL CTRL TOW/ HAUL SWITCH TRANS CLUTCH F CTRL TRANS CLUTCH G CTRL (PINS: 5, 6 NOT USED) 7 TRANS CLUTCH H CTRL TRANS HI SIDE DRIVER 2 SIG TRANS HIGH SIDE DRV 1 SIG DRV TRANS INPUT SPD SENSOR SIG TRANS INTERMEDIATE SPD SIG TRANS MAINLINE PRESS SOL CTRL TRANS OIL TEMP SENS LOW REF TRANS OIL TEMP SENS SIG TRANSMISSION CONTROL MODULE TRANSMISSION MANUAL SHIFT SWITCH UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/WHT WIRE

AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/WHT WIRE BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED POWER DISTRIBUTION SYSTEM PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 RED WIRE RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SHIFT SOLENOID VALVE 1 SHIFT SOLENOID VALVE 2 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID VALVE TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE YEL WIRE

2.7L TURBO 3.0L TURBO DIESEL 5.3L ACCESSORY WAKEUP SERIAL DATA AUTO SWITCH BATT POS VOLT BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/WHT WIRE CLUTCH A CTRL CLUTCH B CTRL CLUTCH C CTRL CLUTCH SOLENOID CTRL COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM GMLAN SERIAL DATA (-) (1) (PINS: 39 TO 46 NOT USED) GMLAN SERIAL DATA (-) (1) (PINS: 55 TO 58 NOT USED) 59 GMLAN SERIAL DATA - 1 GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INPUT SPD SIG LEFT SWITCH LOW REF 3 OUTPUT SPD SIG POWER DISTRIBUTION SYSTEM RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT SWITCH RUN/CRANK IGNITION 1 VOLT SERIAL DATA (-) (1) SIG GROUND SNOW SWITCH SOLENOID LOW SIDE CONTROL SPORT SWITCH SWITCH SIG TCC ON/OFF SOLENOID A CTRL TCC ON/OFF SOLENOID B CTRL TRANS CLUTCH G CTRL TRANS CLUTCH H CTRL TRANS HI SIDE DRIVER 1 SIG TRANS HI SIDE DRIVER 2 SIG TRANS INTERMEDIATE SPD SIG TRANS MAIN LINE PRESSURE SOLENOID CTRL (PINS: 4 TO 6 NOT USED) 7 TRANS OIL TEMP SENS LO REF (PINS: 29 TO 32 NOT USED) TRANS OIL TEMP SENS SIG TRANS SENS A 9 VOLT REF (PINS: 9 TO 12 NOT USED) 13 TRANS SENS B 9 VOLT REF TRANSMISSION CONTROL MODULE (BEHIND LEFT CORNER OF THE RADIATOR) UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/WHT WIRE VIO/YEL WIRE VOLT REF (1) WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

3.0L TURBO DIESEL ACCEL PEDAL POS LO REF 1 ACCEL PEDAL POS SIG 1 ACCL PEDAL POS 5 VOLT REF 1 ACCL PEDAL POS 5 VOLT REF 2 ACCL PEDAL POS LOW REF 2 ACCL PEDAL POS SIG 2 ADAPTIVE CRUISE CTRL GAP UP/DOWN SW SIG CRUISE CTRL SET/COAST/ RES/ACC SW SIG BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POSI SENS SIG BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC BRAKE SIGNAL ENG CTRL SENS 5 VOLT REF (3) ENG CTRL SENS 5 VOLT REF 2 ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) EXCEPT 2.7L TURBO 2.7L TURBO EXCEPT 3.0L TURBO DIESEL GRN/WHT WIRE GROUND GRY/GRN WIRE HI SPD GMLAN SRL DATA (-) (1) HIGH SPEED GMLAN DATA (-) 1 HOT AT ALL TIMES LOGIC LOW REFERENCE RED/BLU WIRE RED/BRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SIG GND THRTL ACTR CTRL CLOSE THRTL ACTR CTRL OPEN THRTL POS SENS 5 VOLT REF THRTL POS SENS SIG 1 UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

B+ VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE COMBINED VEHICLE INERTIAL SENSOR SUPPLY VOLT COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE GRN WIRE GRN/BRN WIRE GROUND GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT PRESSURE SENSOR LOGIC LOW REF LOW SPD GMLAN SERIAL DATA 2 POWER STEERING CONTROL MODULE (ON POWER STEERING RACK ASSEMBLY) POWER STEERING PRESSURE SENSOR RED WIRE RED/WHT WIRE RIGHT PRESSURE SENSOR SERIAL DATA COMMUNICATION ENABLE SIGNAL GROUND STEERING SOL CONTROL STEERING SOL LOW REF STEERING WHEEL ANGLE SENSOR UNDERHOOD FUSE BLOCK VARIABLE POWER STEERING SOLENOID VALVE WHT WIRE WHT/BLU WIRE

BATT POS VOLT 28 BATT POS VOLT 4 BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/BLK WIRE GRN/VIO WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT PARK BRAKE ACTUATOR LEFT PARK BRAKE MOTOR APPLY CTRL LEFT PARK BRAKE MOTOR LOW REF LOGIC LOW SPD GMLAN SER DATA 2 PARK BRAKE CONTROL SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PARK BRK APPLY SW VOLT REF 1 PARK BRK APPLY SW VOLT REF 2 PARK BRK SW MONITOR SIG 1 PARK BRK SW MONITOR SIG 2 PARK BRK SW SIG PARK BRK SW TEST SIG PARK IND RED/GRY WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT PARK BRAKE ACTUATOR RIGHT PARK BRK MOTOR APPLY CTRL RIGHT PARK BRK MOTOR LOW REF SERVICE PARK BRAKE IND UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/RED WIRE

1/+ 10 SPEED A/T 6.6L (VIN 7) 6.6L VIN Y AUTOMATIC TRANSMISSION ASSEMBLY (10 SPEED A/T) BATT POS VOLT 28 LO SPD GMLAN SERIAL DATA 2 BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRK POS SENS LOW REF BRK POS SENS SIG BUS - COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE IND DATA DATA BUS 1 DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE GND BATT POS VOLT 4 GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HI SPD HI SPEED GMLAN SERIAL HI SPEED GMLAN SERIAL DATA BUS (-) 1 HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES IGN MODE SW CTRL BACKUP IGN MODE SW MODE CTRL INSTRUMENT CLUSTER INTERNAL MOD SW VOLT SUPPLY A J108 (6.6L VIN 7) LOGIC NCA WIRE ORG/ WIRE RED/BRN WIRE RED/GRY WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SW FEEDBACK SIGNAL TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION PARK/ NEUTRAL SIGNAL 1 TRANSMISSION RANGE SENSOR UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

BATT POS VOLT 18 BLK WIRE BLU WIRE BLU/GRN WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ETHERNET BUS 7 (-) GMLAN SERIAL DATA GND HI SPD GMLAN SER DATA (+)9 GRY/BLU WIRE HI SPD GMLAN SER DATA (-) 9 HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC RED/GRN WIRE TIRE PRESSURE IND TRAILER TIRE PRESSURE INDICATOR MODULE UNDERHOOD FUSE BLOCK WHT WIRE WHT/GRN WIRE

BLK WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ETHERNET BUS 7 (-) FRONT AXLE ENGAGEMENT ACTUATOR FRT AXLE ACTR CTRL GEAR POSI SENS LOW REF GND 44 GRN WIRE GRY/BLK WIRE GRY/BLU WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (-) 1 ROTARY POS SENS SIG HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INCREMENTAL ENCODER DIR SIG INCREMENTAL ENCODER IMPULSE SIG INCREMENTAL ENCODER SENS LOW REF INSTRUMENT CLUSTER J155 (6.6L TURBO DIESEL) J155 (6.6L) J157 (6.6L TURBO DIESEL) KNOCK SENS SHLD LOGIC NEUTRAL IND CTRL POWER DISTRIBUTION SYSTEM PRIMARY FUSED BATT POS VOLT 13 RED/GRY WIRE SER DATA COMMU ENABLE TRANSFER CASE CONTROL MODULE TRANSFER CASE LOCK SOL VLV CRTL TRANSFER CASE MTR CLOCKWISE CTRL TRANSFER CASE MTR COUNTER CLOCKWISE CTRL TRANSFER CASE MTR SHLD UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BATT POS VOLT BLK WIRE BLK/GRY WIRE BLU WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/GRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HI LO HOT AT ALL TIMES INSTRUMENT CLUSTER LO WASHER FLUID IND CTRL LOGIC LOW REF MIST MIST HI OFF LO INT INT MTR PARK SW SIG OFF RED WIRE RED/BRN WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA (-) (1) SERIAL DATA 2 TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK VIO WIRE WASHER RLY CTRL WASHER SW SIG WASHER SWITCH WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MTR RLY COIL SUPPLY VOLT WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WINDSHIELD WIPER SW HI SIG WIPER SW HI SIG WIPER SW LOW SIG WIPER SWITCH YEL/BLU WIRE YEL/BRN WIRE