GMC Sierra III (2013-2015) (left front dash defroster deflector) Wiring diagrams

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

A/T MANUAL SHIFT SWITCH AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/WHT WIRE BLU/GRY WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM 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 GMLAN GMLAN SERIAL SERIAL GMLAN SERIAL SERIAL DATA DATA DATA DATA BUS - BUS + BUS + BUS - GRN WIRE GRY WIRE INPUT SPEED SENSOR (ISS) SIGNAL ISS/OSS SUPPLY VOLTAGE NCA WIRE OUTPUT SPEED SENSOR (OSS) SIGNAL PPL/YEL WIRE RED WIRE REF SENSOR TOW/ HAUL MODE SWITCH TOW/ HAUL SW SIG TRANSMISSION CONTROL MODULE (TCM) CONTROL SOLENOID VALVE ASSEMBLY TRANSMISSION FLUID PRESSURE (TFP) SWITCH TRANSMISSION INPUT SHAFT SPEED (ISS) TRANSMISSION INTERNAL MODE SWITCH (IMS) TRANSMISSION OUTPUT SHAFT SPEED (ISS) TRANSMISSION RANGE SWITCH SIG A TRANSMISSION RANGE SWITCH SIG B TRANSMISSION RANGE SWITCH SIG C TRANSMISSION RANGE SWITCH SIG P TRANSMISSION SHIFT LEVER WHT WIRE YEL WIRE

BATTERY BATTERY CURRENT SENSOR (RIGHT REAR OF ENGINE COMPT) BATTERY FUSE BLOCK BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CURRENT SENS LOW REF CURRENT SENS SIG CURRENT SENS DK BLU WIRE DK BLU/VIO WIRE DRIVER INFORMATION CENTER DISPLAY ECM IGN FUSE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FUSE FUSE 4 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GRY WIRE GRY/VIO WIRE HI SPD GMLAN SRL DATA (-) (1) HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER LOGIC LT GRN WIRE MDL/ BATT RVC FUSE MOST SERIAL DATA (+) NEAR FAN SHROUD) PPL PPL/LT GRN WIRE RED WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT SPLY VOLT UNDERHOOD FUSE BLOCK (ON POSITIVE BATTERY TERMINAL) VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE

11 22 SIG CTRL PARK LAMP SIG 13 7 5 VPLT REF DIMMER SW LO REF 3 1 18 9 BATT POS VOLT BATT POS VOLT CARGO LPSW SIG DIMMER SW SIG BATT POS VOLT BCM 1 FUSE BLOCK FUSE (LOWER LEFT SIDE OF DASH) BCM 5 FUSE BCM 6 PANEL FUSE FUSE BLOCK (IN RIGHT END OF DASH) BLK WIRE BLK/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG INTR LP DEFEAT SW SIG LIGHTING CTRL 2 GND DK BLU WIRE DK BLU/RED WIRE DOME LAMP SWITCH GMLAN SERIAL DATA GRY WIRE GRY/GRN WIRE GRY/LT GRN WIRE HEADLAMP SWITCH HOT AT ALL TIMES INADVERTENT PWR CTRL INSTRUMENT ILLUMINATION CIRCUIT INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH INTR LP CTRL LED AMBIENT LIGHTING CTRL 1 LF DR AJAR SW SIG LR DR AJAR SW SIG LT GRN/BRN WIRE LT GRN/GRY WIRE OVERHEAD CONSOLE ACCENT LAMP RED/BRN WIRE RED/WHT WIRE RF DR AJAR SW SIG RIGHT INSTRUMENT RR DR AJAR SW SIG STANDING LP RLY CTRL VIO/LT GRN WIRE WHT WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE

BACKUP LAMPS CIRCUIT BATTERY FUSE BLOCK (ENGINE COMPT, TOP RIGHT) BCM 1 FUSE BCM 3 FUSE BCM 7 FUSE BLK WIRE BLU WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA DRIVER INFORMATION CENTER DISPLAY FUSE 4 GRN/VIO WIRE GRN/WHT WIRE GRY/BRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER IPC FUSE LAMP LEFT BACKUP LAMP LEFT INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT LEFT INSTRUMENT PANEL JUNCTION BLOCK LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LOGIC LT GRN WIRE MARKER LAMP POSITIVE BATT POWER DISTRIBUTION SYSTEM REAR BODY JUNCTION BLOCK RED/GRY WIRE RED/LT GRN WIRE RED/WHT WIRE RIGHT BACKUP RIGHT LOWER TAIL/STOP, RIGHT REAR SIDE RIGHT TAIL LAMP ASSEMBLY RIGHT TURN IND RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP SER GMLAN LO SPD SIDE OF DASH) TURN SIGNAL LAMP VIO/GRY WIRE VIO/WHT WIRE VOLT YEL/BLU WIRE

BLK WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS DATA LINK CONNECTOR DRIVER SEAT HEATING, COOLING SWITCH FORWARD ADJUSTABLE PEDAL RELAY HEADLAMP SWITCH HVAC CONTROL MODULE IGNITION MAIN RELAY IGNITION RUN/ CRANK RELAY INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LEFT INSTRUMENT PANEL FUSE BLOCK NCA WIRE PASSENGER SEAT HEATING, COOLING SWITCH REARWARD ADJUSTABLE PEDAL RELAY RETAINED ACCESSORY POWER RELAY 1 STEERING WHEEL ANGLE SENSOR TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR TURN SIGNAL/ MULTI-FUNCTION SWITCH WHT WIRE WINDSHIELD WIPER MOTOR

1 2 3 4 5 6 7 8 9 10 BATTERY POSITIVE VOLT AMP FUSE BACK ELE SPLY VOLT SEAT ELE SPLY VOLT ELE SUPPLY VOLTAGE SEAT ELE SPLY VOLT BATTERY POSITIVE VOLT BLK WIRE BRN WIRE BRN/BLU WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER BACK SEAT HEATING ELEMENT (IN DRIVER'S SEAT BACK) DRIVER CUSHION SEAT HEATING ELEMENT (IN DRIVER'S SEAT CUSHION) DRIVER SEAT HEATING, COOLING SWITCH EARLY PRODUCTION HOT AT ALL TIMES HOT AT ALL TIMES LEFT INSTRUMENT IPC PANEL FUSE FUSE BLOCK (LEFT SIDE OF DASH) HOT AT ALL TIMES RIGHT INSTRUMENT PANEL FUSE BLOCK RT FRT HTD CLD SEAT FUSE LATE PRODUCTION LT GRN/LT BLU WIRE LT GRN/WHT WIRE LTD HTD CLD SEAT FUSE NETWORK BUS 2 PASSENGER BACK SEAT HEATING ELEMENT (IN PASSENGER'S SEAT BACK) PASSENGER CUSHION SEAT HEATING ELEMENT (IN PASSENGER'S SEAT CUSHION) PASSENGER SEAT HEATING, COOLING SWITCH RED/GRY WIRE RED/LT GRN WIRE SEAT HEATING CONTROL MODULE WHT/BRN WIRE

1 2 3 IGN 1 VOLT ALERT LED CTRL DIMMING CTRL ALERT LED CTRL GMLAN SERIAL DATA BATT POS VOLT BLK WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DK BLU WIRE FRONTVIEW CAMERA MODULE (BEHIND INSIDE REARVIEW MIRROR) FUSE BLOCK (LOWER LEFT SIDE OF DASH) GAP UP/DOWN SWITCH GROUND GRY/GRN WIRE GRY/ORG WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IND DIMMING CTRL INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH IPC IGN/SDM IGN FUSE LANE DEPARTURE WARNING DISABLE SW SIG LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN SERIAL DATA LOGIC INSTRUMENT CLUSTER LT GRN WIRE RED/LT GRN WIRE REFLECTED LED DISPLAY DIMMING CTRL RIGHT INSTRUMENT PANEL FUSE BLOCK (IN RIGHT END OF DASH) STEERING WHEEL AIR BAG COIL UP/DOWN SW SIG USB/OBS DET FUSE VIO/BLK WIRE VOLT REF WHT WIRE WHT/LT GRN WIRE

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

1 2 DR LCK CTRL DR LCK CTRL 2 11 18 RR DR AJAR SW SIG MOTOR STATUS SIG RR 15 19 UNLOCK SIG LOCK SIG 24 21 UNLOCK CTRL LOCK CTRL 24 25 GMLAN SERIAL DATA (-) GMLAN SERIAL DATA (+) 25 15 LF DR AJAR SW SIG SECURITY LCK SW SIG 25 27 16 SUPPLY VOLTAGE TRANSMIT SIGNAL ACTUATOR RETURN 4 21 6 ACTUATOR UNLCK CTRL LOCK MOTOR STATUS KEY SW UNLCK SIG ACTUATOR RECEIVE SIG BATT POS VOLT BCM 3 FUSE BLK WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHILD SECURITY LCK RLY CTRL COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DRIVER DOOR LATCH ASSEMBLY (IN REAR OF DRIVER FRONT DOOR) GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT PANEL LEFT FUSE BLOCK (LOWER LEFT SIDE OF DASH) LF DR AJAR LIN BUS 3 LOCK OUT IND DRIVER WINDOW SWITCH LOCK OUT SWITCH LOGIC LR DR AJAR SW SIG LT HEADLP LOW 1 2 BEAM SPLY VOLT RT HEADLP LOW BEAM SPLY VOLT HORN RELAY CTRL MOTOR STATUS SIG LR MTR STATUS PASSENGER DOOR LOCK SWITCH RED/GRY WIRE RF DR AJAR SW SIG SW SIG UNLOCK SIG VIO/YEL WIRE W/ POWER OPERATED WINDOW W/O POWER OPERATED WINDOW WHT WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/LT GRN WIRE YEL/VIO WIRE