GMC Sierra IV facelift (2022-2024) computer data lines system Wiring diagrams

ABS IND. AIR BAG IND AUTO HIGH BEAM IND AUTO STOP IND AUTOSAR CAN BUS (-) 5 SER DATA BATT POS VOLT BATTERY CHARGING IND BLK/GRN WIRE BLK/WHT WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE IND BUS (-) SER DATA CHARGING GAUGE COMPUTER DATA LINES SYSTEM CRUISE IND DAY NIGHT LED CTRL DISPLAY DOOR AJAR IND DPF WARNING IND DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE GAUGE ENGINE OIL LEVEL GAUGE ENGINE WIRING HARNESS JUNCTION BLOCK ESC IND ESC OFF IND ETHERNET BUS 7 (-) FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE FUEL IND FUEL PUMP POWER CONTROL MODULE GLOW PLUG IND GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/YEL WIRE HEAD-UP DISPLAY CIRCUIT HIGH BEAM IND HILL DESCENT CTRL IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE KM/H MPH IND LANE DEPARTURE WARNING IND LEFT TURN IND LIGHTS ON IND LIN BUS 1 LOGIC LOW REF LVDS GY MALFUNCTION IND NAVIGATION SYSTEM OFF IND PARK IND PARK LAMPS IND PEDESTRIAN AHEAD IND POWERTRAIN CAN PRIVATE SER DATA RED/WHT WIRE RIGHT INSTRUMENT PANEL WIRING HARNESS FUSE BLOCK RIGHT TURN IND RPM IND RUN/CRANK IGN 1 VOLT SEAT BELT IND SECURITY IND SENSOR SIGNAL SERVICE PARK BRAKE IND SIG GND SPEEDOMETER TACHOMETER TIRE PRESSURE WARNING IND TOW/ HAUL IND TRACTION CONTROL OFF IND USB SER DATA VEHICLE AHEAD IND VIO/BLK WIRE VSC IND VSC OFF IND WAIT TO START IND CTRL WHT WIRE

A/C COMPRESSOR CLTH RLY CTRL A/C REFRIGERANT PRESS SENS SIG ACCELERATOR PEDAL POSI LOW REF 1 ACCELERATOR PEDAL POSI LOW REF 2 ACCELERATOR PEDAL POSI SIG 1 ACCELERATOR PEDAL POSI SIG 2 ACCELERATOR PEDAL POSITION SENSOR AIR CONDITIONING SYSTEM AMBIENT AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM AUTOSAR CAN BUS (-) 2 SER DATA AUTOSAR CAN BUS (-) 3 SER DATA BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRK POSI SENS SIG BRN/RED WIRE CAMSHAFT EXH LOBE AXIAL POSI SIG 1 CAMSHAFT EXH LOBE AXIAL POSI SIG 2 CAMSHAFT EXH STEPPER CYL 2 FRT SOL CTRL CAMSHAFT EXH STEPPER CYL 2 POSI SIG CAMSHAFT EXH STEPPER CYL 2 REAR SOL CTRL CAMSHAFT EXH STEPPER CYL 3 FRT SOL CTRL CAMSHAFT EXH STEPPER CYL 3 POSI SIG CAMSHAFT EXH STEPPER CYL 3 REAR SOL CTRL CAMSHAFT INTAKE LOBE AXIAL POSI SIG 1 CAMSHAFT INTAKE LOBE AXIAL POSI SIG 2 CAMSHAFT INTAKE STEPPER CYL 4 FRT SOL CTRL CAMSHAFT INTAKE STEPPER CYL 4 POSI SENS SIG CAMSHAFT INTAKE STEPPER CYL 4 REAR SOL CTRL CAMSHAFT POSI MOTOR CTRL A CAMSHAFT POSI MOTOR CTRL B CAMSHAFT POSI MOTOR CTRL C CAMSHAFT POSI MOTOR CTRL D CAMSHAFT POSI MOTOR POSI SENS 1 SIG CAMSHAFT POSI MOTOR POSI SENS 2 SIG CAMSHAFT POSI SENS 2 GND COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) ENGINE CTRL MODULE LIN BUS 4 FUEL PUMP PRIMARY RLY CTRL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOOD STATUS A SIG MASS AIR FLOW SENS SIG MASS AIR FLOW SENSOR NCA WIRE PASSENGER OUTSIDE REAR VIEW MIRROR POWERTRAIN MAIN RLY FUSED SPLY VOLT 2 POWERTRAIN RLY COIL CTRL PVT SER DATA POWERTRAIN CAN BUS (-) SER DATA RED/BRN WIRE RUN/CRANK IGN 1 VOLT SIG GND POWERTRAIN MAIN RLY FUSED SPLY VOLT 1 STARTER ENABLE RLY CTRL STARTER PINION SOL ACTR RLY CTRL STARTING/CHARGING SYSTEM STEP CAM A CTRL STEP CAM B CTRL TRANSMISSION RANGE SENSOR AUTOMATIC TRANSMISSION VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAN-BUS COMPUTER DATA LINES SYSTEM DATA DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE OIL IND ENGINE OIL PUMP CTRL EVAPORATIVE EMISSION CANISTER PURGE PUMP EXHAUST CAMSHAFT POSITION ACTUATOR SOLENOID VALVE EXHAUST SENS 1 VOLT REF FIELD DUTY CYCLE SIG FUEL GAUGE IND GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HIGH CTRL HIGH VOLT CTRL CYL 1 HIGH VOLT CTRL CYL 3 HIGH VOLT SPLY CYL 1 HIGH VOLT SPLY CYL 3 IGNITION CTRL 1 IGNITION CTRL 3 INSTRUMENT PANEL CLUSTER CONTROL MODULE INTAKE CAMSHAFT POSITION ACTUATOR SOLENOID VALVE INTAKE SENS 1 VOLT REF KNOCK SENSOR #2 KNOCK SENSOR 1 LOGIC LOW CTRL MAIN RLY FUSED SPLY (1) MALFUNCTION IND LAMP OIL PUMP MOTOR CTRL POSI INTAKE SENS 1 SERIAL STARTING/ CHARGING SYSTEM VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN/BLU WIRE BRN/RED WIRE CAN BUS (-) SERIAL DATA COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK EVAP VENT SOL VALVE CTRL EVAPORATIVE EMISSION CANISTER VENT SOLENOID VALVE EXHAUST CAMSHAFT POSITION SENSOR FUEL LEVEL SENS LOW REF FUEL LEVEL SENSOR FUEL PRESS SENS LOW REF FUEL PRESS SENS SIG FUEL PUMP FUEL PUMP CTRL FUEL PUMP POWER CONTROL MODULE (UNDER VEHICLE, ABOVE DRIVE SHAFT) FUEL TANK PRESSURE SENSOR GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES INTAKE CAMSHAFT POSITION SENSOR PRESS SENS LOW REF PRESS SENS SIG PRIMARY FUEL LVL SENS SIG PRIMARY RLY CTRL RED/VIO WIRE RED/WHT WIRE SENS BUS ENABLE SHIELD GND SPLY VOLT PHASE 2 SPLY VOLT PHASE 3 VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE W/O RETRACTABLE RUNNING BOARD WHT WIRE WHT/BRN WIRE WHT/RED WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

ABSOLUTE PRESS SENS SIG BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE POSI SIG COOLANT TEMP SENS 2 SIG ENGINE BLOCK COOLANT TEMP SIG ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) ENGINE CTRL MODULE LIN BUS 1 ENGINE CTRL MODULE LIN BUS 2 ENGINE CTRL MODULE LIN BUS 3 ENGINE CTRL SENS 5 VOLT REF 1 ENGINE CTRL SENS LOW REF 2 ENGINE CTRL VEH SENS 5 VOLT REF 1 ENGINE CTRL VEH SENS LOW REF 1 ENGINE OIL TEMP SENS 2 SIG ENGINE OIL TEMPERATURE SENSOR EVAPORATIVE PURGE PUMP PRESS SIG FEEDBACK SIG FUEL PRESSURE SENSOR FUEL RAIL PRESS SENS SENT 1 SIG GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/VIO WIRE GRY/WHT WIRE NCA WIRE OIL PRESS SENS SIG OIL TEMP SENS SIG POWERTRAIN MAIN RLY FUSED SPLY VOLT 5 POWERTRAIN SENS BUS ENABLE RADIATOR COOLANT TEMPERATURE SENSOR RIGHT SIDE OF RADIATOR) SIG GND TRANS INTERNAL MODE SW MODE CTRL Y TRANSMISSIONS SYSTEM VIO WIRE VIO/BLU WIRE VIO/GRN WIRE WHT WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESSURE SENS SIG ACCELERATOR PEDAL POSI LOW REF 1 ACCELERATOR PEDAL POSI LOW REF 2 ACCELERATOR PEDAL POSI SIG 2 AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM AUTOSAR CAN BUS (-) 2 SER DATA AUTOSAR CAN BUS (-) 3 SER DATA BATT POS VOLT BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRK POSI SENS SIG BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE CAN-BUS COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG CTRL DATA DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) ENGINE CTRL SENSORS LOW REF 2 ENGINE CTRL VEHICLE SENS LOW REF 1 ENGINE OIL IND EXH GAS RECIRCULATION POSI SIG EXH GAS RECIRCULATION VALVE HIGH CTRL EXH GAS RECIRCULATION VALVE LOW CTRL EXH PRESSURE SENS SENT 1 SIG FUEL GAUGE IND GLOW PLUG 2 CTRL GLOW PLUG 3 CTRL GLOW PLUG 4 GLOW PLUG 4 CTRL GLOW PLUG 5 CTRL GLOW PLUG 6 CTRL ENGINE CTRL VEHICLE SENS 5 VOLT REF 1 GLOW PLUG CTRL GLOW PLUG IND GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOOD STATUS A SIG HOT AT ALL TIMES IND INSTRUMENT PANEL CLUSTER CONTROL MODULE LOGIC MALFUNCTION IND LAMP MASS AIR FLOW SENS SIG OIL PRESSURE SENS SIG CRANKCASE DIFFERENTIAL PRESSURE SENS SIG POSI SENS MTR CLOSE CTRL POSI SENS MTR OPEN CTRL POWERTRAIN RLY COIL CTRL POWERTRAIN SENS BUS RLY CTRL RED/BRN WIRE RUN/CRANK IGNITION 1 VOLT SERIAL SIG GND STARTER ENABLE RLY CTRL STARTING/CHARGING SYSTEM TURBOCHARGER VANE POSI SENS SIG TURBOCHARGER VANE POSITION ACTUATOR VIO/BLK WIRE VIO/GRN WIRE VIO/YEL WIRE WAIT TO WAIT TO START IND CTRL WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE

ACCELERATOR PEDAL POSI SIG 1 ACTR CTRL CLOSE ACTR CTRL OPEN AMBIENT AIR TEMP SENS SIG AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION MANUAL SHIFT SHAFT POSITION SWITCH BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMP SENS 2 SIG COOLING FANS SYSTEM DFI HI VOLT SPLY CYL 1 DFI HI VOLT SPLY CYL 2 DFI HI VOLT SPLY CYL 5 DFI HI VOLT SPLY CYL 6 ENGINE CONTROL MODULE ENGINE CTRL MODULE LIN BUS 1 ENGINE CTRL MODULE LIN BUS 2 ENGINE CTRL MODULE LIN BUS 3 ENGINE CTRL SENS 5 VOLT REF 1 ENGINE CTRL SENS LOW REF 1 ENGINE OIL TEMP SENS 2 SIG EXH RESTRICTOR MTR CLOSED CTRL EXH RESTRICTOR MTR OPEN CTRL EXHAUST GAS RECIRCULATION VALVE 1 FPP RLY CTRL FRP SENS LOW REF FUSED SPLY VOLT 2 FUSED SPLY VOLT 5 GLOW PLUG 1 GLOW PLUG 1 CTRL GLOW PLUG 3 GLOW PLUG 6 GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE MAIN RLY FUSED SPLY VOLT 1 NCA WIRE OIL TEMP SENS SIG ORG/ WIRE POWERTRAIN MAIN RLY PRE-THROTTLE AIR TEMP SIG SW MODE CTRL Y TRANS INTERNAL MODE TRANSMISSIONS SYSTEM VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRY WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

AUTOSAR BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE APPLY BRN/WHT WIRE CAN BUS (+) 2 COMPUTER DATA LINES SYSTEM CRANKCASE PRESSURE SENSOR ENGINE COOLANT TEMPERATURE SENSOR 2 EXHAUST GAS RECIRCULATION EXHAUST PRESSURE DIFFERENTIAL SENSOR EXHAUST GAS TEMPERATURE SENSOR MODULE 2 EXHAUST PARTICULATE MATTER SENSOR FUEL LEVEL SENSOR FUEL PUMP GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE INSTRUMENT CLUSTER SYSTEM INTAKE AIR FLOW CONTROL VALVE LOGIC MANIFOLD ABSOLUTE PRESSURE, INTAKE AIR TEMPERATURE SENSOR NITROGEN OXIDES SENSOR 1 NITROGEN OXIDES SENSOR 2 NITROGEN OXIDES SENSOR 3 RED/VIO WIRE RED/WHT WIRE SENS CTRL SENS LOW REF SENS SIG SER DATA VIO WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRY WIRE

5 VOLT REF BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CAN BUS (-) 3 COMPUTER DATA LINES SYSTEM EXHAUST GAS RECIRCULATION TEMPERATURE SENSOR 3 HEATER CTRL HEATER CTRL LOW IGNITION 1 VOLT INJECTOR SUPPLY PIPE REDUCTANT HEATER 2 LINE HEATER CTRL LINE HEATER LOW CTRL LOGIC LOW REF OUTLET CHARGE AIR COOLER AIR TEMPERATURE SENSOR PRESS SENSOR SIG RED WIRE RED/WHT WIRE REDUCTANT PRESSURE SENSOR REDUCTANT PUMP REDUCTANT TANK FLUID SENSOR REDUCTANT TANK TEMPERATURE SENSOR SENSOR 5 VOLT REF 1 SENSOR LOW REF SMART PUMP CTRL TANK 2 HEATER CTRL TANK HEATER LOW CTRL TANK REDUCTANT HEATER 1 TANK REDUCTANT HEATER 3 TEMP SENSOR SIG VIO/WHT WIRE VOLT PHASE 2 VOLT PHASE 3 WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE

5 V REF 1 ACTUATOR OPEN CTRL BANK 1 SENS 2 BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CHARGE IND CTRL COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/RED WIRE HI SIG BANK 1 SENS (2) IGNITION COIL 1 IGNITION COIL 3 IGNITION COIL 5 IGNITION COIL 7 IGNITION CTRL 2 IGNITION CTRL 8 KNOCK SENS SIG 1 KNOCK SENS SIG 2 LOGIC LOW SIG MANIFOLD ABSOLUTE PRESSURE SENSOR MASS AIR FLOW SENSOR NCA WIRE SENS 1 SENS 1 VOLT REF SENS BUS ENABLE SENS SIG SIG GND SOL ENABLE SIG 2 SOL ENABLE SIG 7 SOL VALVE 1 SOL VALVE CTRL 2 SOL VALVE CTRL 4 SOL VALVE CTRL 7 SPARK PLUG STARTING/ CHARGING SYSTEM VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE