GMC Sierra III (2013-2015) body control module (bcm) (lower left side of dash) Wiring diagrams

BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) EAP FUSE 38 FUSE 35 ELECTRONIC ADJUSTABLE PEDAL (EAP) ASSEMBLY (UNDER LEFT SIDE OF DASH) ELECTRONIC ADJUSTABLE PEDALS PCB RELAY EXCEPT 6.6L 6.6L HOT AT ALL TIMES I/P MULTI-FUNCTION SWITCH LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) ORG/BLK WIRE PARK ENABLE PCB RELAY PPL RED/WHT WIRE RWD UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE YEL/BLK WIRE

25 24 19 GMLAN DATA(+) GMLAN DATA(-) SNSR LOW REF 2500 2501 522 COMPUTER DATA LINES SYSTEM 39 40 HI SPD GMLAN SERIAL DATA + HI SPD GMLAN SERIAL DATA - 5361 (OR 5066) ABS BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT (OR BLK) WIRE BLK/WHT WIRE BLK/YEL WIRE BLOCK BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE APPLY SENSOR LOW REF BRAKE APPLY SNSR SIG BRAKE APPLY SNSR SPLY VOLT BRAKE ESC ESC OFF IND IND IND IND BRAKE FLUID LEVEL SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRAKE PEDAL POSITION SENSOR (BEHIND BRAKE PEDAL ASSEMBLY) BRK APPL SENS SIG BRK APPL SPL VOLT BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/VIO WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRN WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION INSTRUMENT PANEL MULTI- FUNCTION SWITCH IPC IGN/ SDM IGN FUSE LEFT INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LT GRN/BLK WIRE LT GRN/GRY WIRE NCA WIRE NEAR FAN SHROUD) PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) POWER DISTRIBUTION SYSTEM PRK BRK SW RED WIRE RIGHT REAR WHEEL SPEED SENSOR (ON RIGHT REAR BRAKE BACKING PLATE) TRACTION CONTROL OFF IND TRACTION CONTROL OFF SWITCH TRACTION SW VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

10 11 HIGH SPEED BUS (+) 6.6L CHEVROLET GMC AUTOMATIC TRANSMISSION (6.6L) AUTOMATIC TRANSMISSION FLUID PRESSURE (TFP) MANUAL VALVE AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUTOMATIC TRANSMISSION ( 6.0L) BCK/UP LAMP PCB RELAY BCK/UP RLY BCK/UP SIG BCM FUSE 15 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL TRANSMISSION SOLENOID CONTROL VALVE MODULE ASSEMBLY (TCM) CONVENIENCE PACKAGE DASH) DATA BUS - DK BLU WIRE DK GRN WIRE GMLAN SERIAL HI SPD GRD GRN WIRE GROUND DISTRIBUTION GROUND DISTRIBUTION SYSTEM GRY WIRE HIGH SPEED BUS - HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF INSIDE REARVIEW MIRROR (ISRVM) LEFT BACKUP LAMP LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LOW REF LOW SPEED 10 3 5 SERIAL DATA B+ GND LT GRN WIRE MJR NCA WIRE PNK/BLK WIRE POSITION SWITCH) POWER DISTRIBUTION SYSTEM REAR LAMPS JUNCTION BLOCK (INSIDE OF LEFT REAR FRAME RAIL) REARVIEW CAMERA (LEFT OF TAILGATE HANDLE) RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP SW SIG A SW SIG B SW SIG C SW SIG P SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRAILER TOW CIRCUIT TRANS RANGE SIG A TRANS RANGE SIG B TRANS RANGE SIG C TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) TRLR BCK/UP FUSE 10 FUSE 9 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEH BCK/UP FUSE 15 FUSE 14 W/ COMFORT, DECOR LEVEL 3 W/ REARVIEW CAMERA W/ SPO REARVIEW CAMERA WHT WIRE YEL WIRE YEL/BLK WIRE

12 2 PNK WIRE 2 3 6.6L EXCEPT 6.6L 3 2 6 11 LED SIG LED SIG VOLT SIG AUTOMATIC AUTOMATIC PNK DAY/NIGHT MIRROR WIRE AUX HVAC IGN FUSE 45 FUSE 48 BACKUP BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN/WHT WIRE DAY/NIGHT DK BLU WIRE DK GRN/WHT WIRE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER OUTSIDE REARVIEW MIRROR (W/ POWER FOLDING MIRROR) GREEN LIGHT GRY WIRE GRY/BLK WIRE GRY/DK BLU WIRE GRY/ORG WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, IGN 1 INSIDE REARVIEW MIRROR (ISRVM) LED SIG LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LIGHT LOGIC LOW REF LT GRN/BLK WIRE MIRR SIG MIRROR MIRROR DISPLAY ONSTAR BUTTON ASSEMBLY ONSTAR SW EMERGENCY SW PNK 4 9 WIRE PNK WIRE POWER NAVIGATION DISTRIBUTION SYSTEM SYSTEM RED WIRE RLY RUN/CRANK RLY RUN/CRNK RELAY SELECTOR SWITCH TELE- PHONE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) VIDEO SIG W/ COMFORT, DECOR LEVEL 3 CONVIENCE PACKAGE YEL WIRE YEL/BLK WIRE

AUX HVAC-IGN FUSE 48 FUSE 45 BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE DIM SIG DK GRN/WHT WIRE EXCEPT 6.6L 6.6L HEATED STEERING FUSE HOLDER (ON STEERING COLUMN) HEATED STEERING WHEEL HEATED STEERING WHEEL CONTROL MODULE (IN STEERING WHEEL) HEATED STEERING WHEEL IND HEATED STEERING WHEEL SWITCH HOT W/ RUN/CRNK RELAY ENERGIZED IGN LED CNTRL SW SIG VOLT REF SNS SIG WHL CNTRL GND INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) INFLATABLE RESTRAINTS STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) LEFT STEERING WHEEL CONTROL SWITCH LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

10 20 8 LF DR SW DR DOOR RF DR SW 15 14 LR DR SW RR DR SW 1639 5060 COMPUTER DATA LINES SYSTEM ABS IND. AIR BAG IND AUX HVAC-IGN FUSE 48 FUSE 45 B+ DIC SW SIG BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRAKE IND BRK SW CTRL BRN WIRE BRN/WHT WIRE CHARGE IND COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE GAUGE CRUISE IND DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER (DIC) ELECTRONIC COMPASS MODULE ENGINE CONTROLS SYSTEM FOG LAMP IND FUEL GAUGE GRY/BLK WIRE HIGH BEAM IND HOT AT ALL TIMES I/P MULTI-FUNCTION SWITCH IGN IGN 1 GMLAN SERIAL IGN VOLT INSTRUMENT PANEL CLUSTER (IPC) INTERCONNECT NETWORK BUS IPC FUSE 46 FUSE 43 LEFT I/P JUNCTION BLOCK LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT TURN IND LINEAR LOGIC LOW OIL IND LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION IND (MIL) MIL CNTRL PASS SEAT BELT NETWORK BUS ODOMETER OIL GAUGE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PASS SEAT BELT IND PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED/WHT WIRE RIGHT TURN IND RUN/ CRNK RELAY RUN/CRK SEAT BELT IND SECURITY IND SERIAL DATA LOW SPD BUS SPEEDOMETER SUPPLEMENTAL RESTRAINTS SYSTEM SW SIG TACHOMETER TAN WIRE TAN/WHT WIRE TIRE PRESSURE IND TOW/HAUL IND TRACTION CONTROL IND TRANSMISSION TEMPERATURE GAUGE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VOLTS GAUGE W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE WAIT TO START IND (6.6L) WIPER/WASHER SYSTEM YEL WIRE

3 8 DIM CNTRL PRK LP SIG 5 8 PPL 5060 6817 6816 COMPUTER DATA LINES SYSTEM 6086 974 29 8 IND CTRL LOW REF PPL ANTI-LOCK BRAKES SYSTEM AUTOMATIC A/C BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DIM IS LPS FUSE FUSE DIM SIG DK GRN WIRE DK GRN/WHT WIRE DRIVER HEATED SEAT SWITCH (W/ SPO HEATED SEATS) DRIVER INFORMATION CENTER (DIC) SWITCH (W/ ACCESSORY STEERING WHEEL CONTROL) EXHAUST BRK SW SIG GRY/BLK WIRE HEAD HEADLAMP, PANEL DIMMER SWITCH HEATED SEATS HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH) HVAC CONTROL MODULE (IF EQUIPPED) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROL SWITCH LOGIC LOW REF LT BLU WIRE OFF AUTO PARK ORG/WHT WIRE PASSENGER HEATED SEAT SWITCH (W/ SPO HEATED SEATS) POWER TAKE OFF (PTO) MODULE (OUTSIDE OF RIGHT FRONT CHASSIS FRAME) POWER TAKE OFF (PTO) SWITCH (IF EQUIPPED) PPL/WHT WIRE RADIO RED/WHT WIRE RIGHT STEERING WHEEL CONTROL SWITCH RR PRK ASSIST SECURITY WIRING PROVISIONS SERIAL DATA 10 18 25 BUS LED DIM DIM CTRL SWC BKLT FUSE 3 TAN WIRE TRAILER BRAKE CONTROL SWITCH (IF EQUIPPED) W/ ACCESSORY STEERING CONTROL, W/ ADOMETER W/ ACCESSORY STEERING WHEEL CONTROL W/ ELECTRIC DOOR LOCK CONTROL W/ LUXURY W/O ACCESSORY EDITION, STEERING ODOMETER WHEEL CONTROL SECURITY W/ SPO W/ SPO HEATED SEATS W/ TRAILER BRAKE CONTROL W/O SPO HEATED SEATS YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 B+ 1 2 3 4 5 6 7 8 PPL RR SNS SIG RR SNS SIG LR SNS SIG SUPPLY LR SNS SIG 2378 2377 2376 2374 2375 PPL 5060 2751 2555 COMPUTER DATA LINES SYSTEM BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE DK BLU WIRE DK GRN WIRE GMLAN GND DISABLE SIG GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, I/P MULTI-FUNCTION SWITCH IND DIM LED DISABLE LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT REAR MIDDLE OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LEFT REAR OBJECT CORNER SENSOR (LEFT CORNER OF REAR BUMPER) LOW REF LT BLU WIRE OBS DET FUSE 20 ORG/ WIRE PPL PPL 5 24 18 8 23 PPL/WHT WIRE REAR OBJECT SENSOR CONTROL MODULE (AT REAR CARGO AREA, BEHIND TRIM PANEL) REAR PARK ASSIST DISABLE SWITCH RED WIRE RED/WHT WIRE RIGHT REAR CORNER OBJECT SENSOR (RIGHT CORNER OF REAR BUMPER) RIGHT REAR MIDDLE OBJECT SENSOR (RIGHT SIDE OF REAR BUMPER) W/O SPO HEATED SEATS W/ SPO HEATED SEATS WHT WIRE YEL WIRE

9 7 BACKUP LAMP RLY CTRL CAMERA SIG - BACKUP LP RLY CTRL GROUND CAMERA VID SIG (-) BLK/WHT WIRE BLU WIRE BLUNT CUT POWER PNK TAKE-OFF (PTO) PROVISION WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BREAKOUT) BREAKOUT) (HYBRID W/ ENGINE CONTROL POWER TAKE OFF (PTO) CONTROLS) PNK WIRE CAMERA SIG (-) COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRAIN WIRE CAMERA VID SIG (+) FUSE 40 (6.6L) GRY WIRE HOT W/ RUN/ CRNK RELAY ENERGIZED IGN INSIDE REARVIEW MIRROR (ISRVM) LAMP RLY CTRL LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LOW SPEED SERIAL DATA LT BLU (OR BLU) WIRE LT BLU WIRE MISC IGN FUSE 43 (EXCEPT 6.6L) NCA WIRE PNK 4 3 2 1 WIRE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RADIO RED WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UYS W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE WHT WIRE YEL WIRE

ANTI-LOCK BRAKES SYSTEM BACKUP LAMPS CIRCUIT BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE CAMPER TRAILER BLUNT CUTS CUT) DK BLU WIRE DK GRN WIRE EXTERIOR LIGHTS CIRCUIT HOT AT ALL TIMES HOT W/ BCK/UP LAMP RELAY ENERGIZED HOT W/ PARK LAMP RELAY ENERGIZED LEFT REAR FRAME RAIL) (31 SERIES: ON LEFT FRAME RAIL) LT BLU/WHT WIRE LT GRN WIRE LT TRAILER TURN SIG LMP ORG/ WIRE POWER DISTRIBUTION SYSTEM RED/BLK WIRE RT TRAILER TURN SIG LMP STUD 1 FUSE 68 FUSE 63 STUD 2 FUSE 63 FUSE 58 TRAILER BRAKE CONTROLLER SOLID STATE RELAY (20/30 SERIES: TRAILER CONNECTOR (W/ TRUCK TRAILER WIRING HARNESS) (AT REAR OF VEHICLE) TRAILER PROVISION (BLUNT TRLR BCK/UP FUSE 10 FUSE 9 TRLR LT STOP/TURN PCB RELAY TRLR PRK FUSE 25 FUSE 22 TRLR RT STOP/TURN PCB RELAY TRLR STOP LT FUSE 3 FUSE 2 TRLR STOP RT FUSE 1 FUSE 4 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/O TRAILER BRAKE CONTROL WHEEL TRAILER WIRING PROVISIONS, 97 DECIBELS ELECTRICAL BACKUP ALARM WHT WIRE YEL WIRE