GMC Sierra III facelift (2015-2018) body control module Wiring diagrams

AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/WHT WIRE BLU/GRY WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE FROM AUTOMATIC TRANSMISSION ASSEMBLY (DIAGRAM 1 OF 2) FTP SWITCH 1 VOLTAGE FTP SWITCH 3 VOLTAGE FTP SWITCH 4 VOLTAGE FTP SWITCH 5 VOLTAGE GMLAN SERIAL DATA - 1 GRN WIRE GRY WIRE INPUT SPEED SENSOR SIG ISS/OSS SUPPLY VOLTAGE NCA WIRE OUTPUT SPEED SENSOR SIG RED WIRE SHIFT TAP UP/ TAP DOWN SW SIG TOW/ HAUL MODE SWITCH TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSION RANGE SWITCH SIG A TRANSMISSION RANGE SWITCH SIG B TRANSMISSION RANGE SWITCH SIG C TRANSMISSION RANGE SWITCH SIG P TRANSMISSION SHIFT LEVER VIO/YEL WIRE WHT WIRE YEL WIRE

A/C CMPRSR MDL/BATT RVC FUSE BATT POS VOLT BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CURRENT SENS LOW REF CURRENT SENS SIG CURRENT SENS SPLY VOLT DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY ECM IGN FUSE ENGINE CONTROL MODULE EXCEPT BASE EQUIPMENT BASE EQUIPMENT FUSE 2 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GRN WIRE GRY WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPD GM LAN SERIAL DATA LT GRN WIRE PPL PPL/LT GRN WIRE RED WIRE RED/GRY WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE WHT/YEL WIRE YEL WIRE

12 VOLT REF ALERT LED CTRL DIMMING CTRL ALERT LED CTRL LOW SPD GMLAN SERIAL DATA 2 BATT POS VOLT BCM 7 FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY GAP UP/DOWN SWITCH GND HI SPD GMLAN SERIAL DATA (+) 1 GRN WIRE GROUND GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT IND DIMMING CTRL INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH IPC IGN/SDM IGN FUSE LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN SERIAL DATA LOGIC POWER DISTRIBUTION SYSTEM RED/GRN WIRE REFLECTED LED DISPLAY DIMMING CTRL RIGHT INSTRUMENT PANEL FUSE BLOCK STEERING WHEEL AIR BAG COIL SW SIG UP/DOWN SW SIG USB/OBS DET FUSE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE WINDSHIELD FRONT VIEW CAMERA

AC INV FUSE ACCESSORY DC/AC POWER INVERTER MODULE AMP FUSE AUDIO AMPLIFIER AUDIO/ VIDEO INPUT ADAPTER AUXILIARY AUDIO INPUT BARE BASE EQUIPMENT BCM 2 FUSE BCM 4 FUSE BCM 7 FUSE BLK WIRE BLK/WHT WIRE BLOWER MOTOR BLU/BRN WIRE BODY CONTROL MODULE CUT SHIELD) DK BLU/BRN WIRE EXCEPT BASE EQUIPMENT FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 7) FROM INSTRUMENT PANEL JUNCTION BLOCK (DIAGRAM 1 OF 7) FRT BLWR FUSE HUMAN MACHINE INTERFACE CONTROL MODULE INFOTMNT FUSE INSTRUMENT PANEL JUNCTION BLOCK INVERTER CTRL LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LOW REF LT GRN WIRE MEDIA DISC PLAYER NCA WIRE PARKING ASSIST CONTROL MODULE RADIO RDO FUSE RED WIRE RED/BRN WIRE RED/DK BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/LT GRN WIRE RED/VIO WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH ROOF BEACON RELAY RSE FUSE STEERING WHEEL AIR BAG COIL STR WHL CNTRL FUSE SUNROOF FUSE SUNROOF MOTOR TO RETAINED ACCESSORY POWER RELAY 2 (DIAGRAM 6 OF 7) USB RECEPTACLE USB/OBS DET FUSE VIO/BRN WIRE W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE W/ REAR SEAT ENTERTAINMENT W/ ROOF MOUNTED PROVISIONS W/O ROOF MOUNTED PROVISIONS WINDSHIELD FRONT VIEW CAMERA YEL WIRE

2 HI 4 HI 2-HI IND 4 LO 4-HI IND 4-LO IND BCM 2 FUSE BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE GRN/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES IGN 3 ILL NEUTRAL IND POWER DISTRIBUTION SYSTEM RED/BRN WIRE RED/GRY WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA (-) (1) TRANSFER CASE MOTOR TRANSFER CASE SHIFT CONTROL SWITCH VIO WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/GRY WIRE YEL/VIO WIRE

2 HI 2-HI IND 4 HI 4-HI IND 4-LO IND AUTO BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM CTRL DATA 1 (+) DK BLU WIRE GRN/BLK WIRE GRY/GRN WIRE GRY/RED WIRE IGN 3 ILL IND DIMMER NEUT 4 LO NEUTRAL IND POWER DISTRIBUTION SYSTEM RED/GRY WIRE SERIAL TRANSFER CASE MOTOR TRANSFER CASE SHIFT CONTROL SWITCH VIO WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE

BANK 1 SENS 2 BANK 2 SENS 2 BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BPP SENS SIG BRAKE PEDAL POSITION SENSOR BRK APPLY BRN WIRE BRN/WHT WIRE CLUSTER SYSTEM COMPUTER DATA LINES SYSTEM CYCLE SIG DATA DK BLU WIRE DK GRN WIRE ECT SENS SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FUEL TANK SIG GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE INSTRUMENT INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL JUNCTION BLOCK LOW REF LT BLU WIRE MAP SENS SIG NCA WIRE PLUG PNK WIRE PRESS SENS LOW REF RED WIRE RED/YEL WIRE SENS CTRL SENS LOW REF SENS SIG SOLENOID CTRL SPARK STARTING/ CHARGING SYSTEM TEMP SENS LOW REF TOS SIG TRANSMISSIONS SYSTEM VIO/BLU WIRE VIO/DK BLU WIRE VIO/GRN WIRE VIO/WHT WIRE VSS LOW REF VSS SIG W/ BASE EQUIPMENT W/O BASE EQUIPMENT W/O BODY EQUIPMENT WHT WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/RED WIRE

BANK 1 SENS 2 BANK 2 SENS 2 BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BPP SENS SIG BRAKE PEDAL POSITION SENSOR BRK APPLY SENS CTRL BRN WIRE BRN/WHT WIRE CLUSTER SYSTEM COMPUTER DATA LINES SYSTEM CYCLE SIG DATA DK BLU WIRE DK GRN WIRE ECT SENS SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FUEL TANK SIG GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE INSTRUMENT INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL JUNCTION BLOCK LOW REF LT BLU WIRE MAP SENS SIG NCA WIRE PLUG PNK WIRE PPL/WHT WIRE PRESS SENS LOW REF RED WIRE RED/YEL WIRE SENS LOW REF SENS SIG SOLENOID CTRL SPARK STARTING/ CHARGING SYSTEM TEMP SENS LOW REF TOS SIG TRANSMISSIONS SYSTEM VIO WIRE VIO/BLU WIRE VIO/DK BLU WIRE VIO/GRN WIRE VSS LOW REF VSS SIG W/ BASE EQUIPMENT W/O BASE EQUIPMENT W/O BODY EQUIPMENT WHT WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/RED WIRE

5-VOLT ACCELERATOR PEDAL POSITION SENSOR AIR CONDITIONING SYSTEM BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE APPLY SENSOR SIGNAL BRAKE SIGNAL BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CLUTCH RELAY CONTROL COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DATA DK BLU WIRE DRIVE LOW SIGNAL ENGINE CONTROL MODULE ENGINE INDICATOR CTRL FLOW SENSOR SIGNAL FUEL PRESSURE REGULATOR 1 FUEL PUMP RLY CONTROL GMLAN SERIAL DATA (+) 7 GMLAN SERIAL DATA - 1 GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/RED WIRE HUMIDITY SENSOR SIG INSTRUMENT PANEL JUNCTION BLOCK LOCK INDICATOR CTRL LOW REF LOW REFERENCE LOW REFERENCE (2) LT GRN WIRE LT GRN/BRN WIRE LT GRN/WHT WIRE PARK/NEUTRAL SIGNAL 1 PEDAL POSITION LOW REF 1 POSITION SIGNAL 1 POSITION SIGNAL 2 PRESSURE SENSOR SIGNAL PRIMARY RLY CONTROL RED/BRN WIRE REF RELAY COIL CONTROL RELAY FUSED SUPPLY 1 RELAY SPEED SIGNAL RUN/CRANK IGN 1 VOLTAGE SENSOR CONTROL SENSOR LOW REFERENCE SERIAL DATA (-) (1) SERIAL DATA (-) 7 SIGNAL GROUND START INDICATOR CONTROL STARTER ENABLE RLY CONTROL STARTING/CHARGING SYSTEM STOP LP SW SIG TEMPERATURE SENSOR SIGNAL TRANSMISSIONS SYSTEM VALVE HIGH CONTROL VALVE LOW CONTROL VIO/BLU WIRE VIO/DK BLU WIRE VIO/LT GRN WIRE VIO/YEL WIRE WAKEUP SERIAL DATA WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/WHT WIRE