GMC Sierra III (2013-2015) underhood fuse block (left side of engine compt) 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

7 1 2 IGN DATA (-) DATA (+) AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR SIGNAL BATT GND BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPT, NEAR FAN SHROUD) COMPUTER 5985 2500 2501 2139 2501 2500 DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY LOGIC INSTRUMENT CLUSTER ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE GRY/PPL WIRE HOT AT ALL TIMES HOT W/ IGNITION RELAY ENERGIZED IGN IPC FUSE BLOCK FUSE (LOWER LEFT SIDE OF DASH) LOW REFERENCE PARK/NEUTRAL SIG GMLAN DATA BUS (-) GMLAN DATA BUS (+) PC SOLENOID 1 CONTROL PC SOLENOID 2 CONTROL PC SOLENOID 3 CONTROL PC SOLENOID 4 CONTROL PC SOLENOID 5 CONTROL POWER DISTRIBUTION SYSTEM PRESSURE CONTROL (PC) SOLENOID VALVE 1 PRESSURE CONTROL (PC) SOLENOID VALVE 2 PRESSURE CONTROL (PC) SOLENOID VALVE 3 PRESSURE CONTROL (PC) SOLENOID VALVE 4 PRESSURE CONTROL (PC) SOLENOID VALVE 5 RED/GRY WIRE RED/LT GRN WIRE REPLICATED TOS SIGNAL SHIFT SOLENOID (SS) 1 CONTROL SHIFT SOLENOID (SS) 2 CONTROL SHIFT SOLENOID (SS) VALVE 1 SHIFT SOLENOID (SS) VALVE 2 TCM/ECM FUSE TO TRANSMISSION INTERNAL MODE SWITCH (IMS) (DIAGRAM 2 OF 2) TORQUE CONVERTER CLUTCH (TCC) PRESSURE CONTROL (PC) SOLENOID VALVE TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL TOS SIG TOW/ HAUL IND TRANS IGN FUSE 40 TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/GRY 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

A/C CLUTCH FUSE A/C COMPRESSOR CLUTCH RELAY ABS ABS VLV PUMP FUSE FUSE ACTIVE GRILLE AIR SHUTTER 1 MOTOR MODULE ACTIVE TRANSFER GRILLE CASE AIR CONTROL SHUTTER 2 MODULE MOTOR (A/T) MODULE AERO SHUTTER FUSE BLK WIRE BODY LEFT RIGHT CONTROL COOLING COOLING MODULE FAN FAN MOTOR MOTOR CHASSIS CONTROL MODULE (W/ INTEGRATED TRAILER BRAKE) CHASSIS CONTROL MODULE (W/O INTEGRATED TRAILER BRAKE) COOL MDL/BATT RVC FUSE COOL FAN 1 FAN 2 FUSE FUSE ECM IGN FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE FPPM FUSE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FRONT AXLE ENGAGEMENT ACTUATOR FRONT FOG LAMP RELAY FUEL PUMP DRIVER CONTROL MODULE HEADLAMP HIGH BEAM RELAY HORN FRT/WPR FUSE RELAY I/P BEC 1 FUSE I/P BEC 2 FUSE ICCM FUSE IGNITION MAIN RELAY INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL JUNCTION BLOCK TRAILER CONNECTOR LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LT GRN/VIO WIRE NCA WIRE REAR DEFOGGER RELAY RED/BRN WIRE RED/DK BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/LT GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY STARTER RELAY STOP LAMP RELAY STRTR FUSE TCM/ECM FUSE TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 1 OF 5) TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 5) TO SPLICE (LEFT FRONT (DIAGRAM LOWER 5 OF 5) SIDE OF ENGINE BLOCK) TRAILER BACKUP LAMPS RELAY TRAILER BRAKE POWER CONTROL MODULE TRAILER PARK LAMPS RELAY TRANS IGN FUSE TRANSFER CASE MOTOR (A/T) TRLR BATT FUSE FUSE TRLR BRK FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BLK WIRE VIO/GRN WIRE WHT/VIO WIRE WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY

ACCY/RUN CRNK FUSE APO 1/LTR FUSE APO 2 FUSE APO 3 FUSE APO 4 FUSE APO FUSE BLK WIRE BODY CONTROL MODULE BREAKOUT) CENTER CONSOLE 1 ACCESSORY POWER RECEPTACLE CENTER CONSOLE 2 ACCESSORY POWER RECEPTACLE CENTER CONTROL COMPARTMENT ACCESSORY POWER RECEPTACLE CENTER SEAT ACCESSORY POWER RECEPTACLE COLLISION ALERT INDICATORS EMERGENCY VEHICLE PROVISION (BLUNT CUT) END OF DASH) FROM LT DRS FUSE (DIAGRAM 1 OF 5) FROM TRANSFER UNDERHOOD CASE FUSE BLOCK CONTROL (DIAGRAM MODULE 2 OF 5) FROM USB/OBS DET FUSE (DIAGRAM 4 OF 5) FUSE FUSE BLOCK (LOWER LEFT SIDE OF DASH) GRN/VIO WIRE GRY/VIO WIRE HTD WHL FUSE HVAC CONTROL MODULE HVAC/AUX HVAC IGN IGNITION MAIN RELAY INSIDE REARVIEW MIRROR INSTRUMENT CLUSTER INSTRUMENT PANEL 1 ACCESSORY POWER RECEPTACLE INSTRUMENT PANEL 2 ACCESSORY POWER RECEPTACLE INSTRUMENT PANEL JUNCTION BLOCK IPC IGN/SDM IGN FUSE LT GRN/VIO WIRE MOBILE DEVICE SLIDING SUNROOF WIRELESS REAR MOTOR CHARGER WINDOW MODULE SWITCH PASSENGER AIR BAG DISABLED INDICATOR REAR BODY JUNCTION BLOCK REARVIEW CAMERA RED WIRE RED/BRN WIRE RED/DK BLU WIRE RED/WHT WIRE RETAINED ACCESSORY POWER RELAY 1 RETAINED ACCESSORY POWER RELAY 2 RIGHT INSTRUMENT PANEL FUSE BLOCK (IN RIGHT SEO ALC FUSE SEO RAP FUSE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BLK WIRE VIO/GRY WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE W/ DRIVER, PASSENGER SPLIT SEATS W/O DRIVER, PASSENGER SPLIT SEATS

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

BLK WIRE COMPUTER DATA LINES SYSTEM DATA 1 (+) DK BLU WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FRONT AXLE ENGAGEMENT ACTUATOR (ON REAR OF TRANSFER CASE) GRY/BLK WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED LOCK IND LOGIC LOW SIG POWER DISTRIBUTION SYSTEM SERIAL TRANS IGN FUSE TRANSFER CASE SHIFT CONTROL SWITCH (ON TOP LEFT OF TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/BLK WIRE WHT WIRE YEL/WHT WIRE

4 HI IND CTRL GMLAN SERIAL DATA 1 (+) GMLAN SERIAL DATA 1 (-) 4 LO IND CTRL RUN/CRANK IGN 1 VOLT 5985 2500 2501 COMPUTER DATA LINES SYSTEM ACCY WAKEUP SERIAL DATA GMLAN SERIAL DATA 1 (+) GMLAN SERIAL DATA 1 (-) ACCY/ RUN CRNK FUSE AWD IND CTRL NEUTRAL IND CTRL 2 HI IND CTRL BLK WIRE BLK/ GRY WIRE BLK/ VIO WIRE BLU/GRY WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 1553 1552 1342 550 DK BLU WIRE DK BLU/YEL WIRE FRONT AXLE ENGAGEMENT ACTUATOR (ON REAR OF FUSE FUSE BLOCK (LOWER LEFT SIDE OF DASH) GRY/BLK WIRE GRY/LT GRN WIRE GRY/PPL WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK LOGIC LT GRN/BLK WIRE MTR COUNTER CLOCKWISE CTRL MTR CLOCKWISE CTRL BATT + GND POWER DISTRIBUTION SYSTEM RED/GRY WIRE SERIAL DATA TRANS IGN FUSE TRANSFER CASE SHIFT CONTROL MODULE (LOWER LEFT SIDE OF DASH) TRANSFER CASE) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO WIRE VIO/BLK WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT YEL/ WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

15 7 WASHER RLY CTRL MTR PARK SW SIG 24 9 8 5 PNK WASHER SW SIG WIPER SW LO SIG LOW REF WIPER SW HI SIG WIRE BAT POS VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY FRONT WASHER DIODE FRT WASH FUSE 7 (EXCEPT 6.6L) FRT WASH PCB RELAY FUSE 5 (6.6L) FUSE HOLDER (EXCEPT 6.6L: ON POSITIVE BATTERY GROUND DISTRIBUTION SYSTEM LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) GRY WIRE HI LO OFF INT HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW WASHER FLUID IND SERIAL CTRL DATA LT BLU WIRE LT GRN WIRE MIST HI LO MIST OFF INT WIPER SWITCH ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED/BLK WIRE RED/WHT WIRE RT STOP TRN FUSE 8 SERIAL DATA TAN WIRE TAN/BLK WIRE TERMINAL) (6.6L: RIGHT SIDE OF FIREWALL) TURN SIGNAL/ MULTI-FUNCTION SWITCH (ON LEFT SIDE OF STEERING COLUMN) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WASHER SWITCH WINDSHIELD WASHER FLUID LEVEL SWITCH (BOTTOM OF WASHER FLUID RESERVOIR) WINDSHIELD WASHER FLUID PUMP (BOTTOM OF WASHER FLUID RESERVOIR) WINDSHIELD WIPER MOTOR (UNDER LEFT SIDE OF WINDSHIELD COWL) WINSHIELD WIPER SW HI SIG WIPER CONTROL PCB RELAY WIPER HIGH SPEED DIODE WIPER LOW SPEED DIODE WIPER SPEED PCB RELAY FRT WPR FUSE 36 (EXCEPT 6.6L) WPR FUSE 33 (6.6L) WNDSHLD WIPER SW SIG 2 YEL WIRE