GMC Cab & Chassis Sierra 3500 HD (2008-2012) yel Wiring diagrams

4 SPEED A/T 6 SPEED A/T ALLISON LCT 1000 4.3L 6.0L (VIN K) 4.3L, 6.0L (VIN G) A/C CMPRSR RELAY ACTIVE 2 SPEED AIR BAG IGN FUSE 40 AUTOMATIC TRANSMISSION (4 SPEED A/T) AUTOMATIC TRANSMISSION (6 SPEED A/T, 2 MODE HYBRID) AUX HVAC-IGN FUSE 48 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE DIGITAL VIDEO DISC (DVD) CONTROL MODULE (IF EQUIPPED) DRIVE MOTOR GENERATOR POWER INVERTER MODULE (6.0L (VIN J)) ECM-IGN FUSE 56 ELECT- RONIC FROM BODY CONTROL MODULE (DIAGRAM 4 OF 7) FROM DLIS FUSE 35 (DIAGRAM 4 OF 7) HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PCB RELAY HVAC-IGN FUSE 55 INFLATABLE RESTRAINT I/P MODULE ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE FOG LAMP DRL PCB FRT WASH PCB RELAY RELAY RELAY PCB RELAY LEFT I/P J/B (LOWER LEFT SIDE OF DASH) MISC ING FUSE 43 MODE ACTUATOR NCA WIRE PARK LAMP RELAY PNK WIRE PNK/ WHT WIRE PNK/WHT WIRE REAR DEFOG RELAY REAR VIEW CAMERA RECIRCULATION ACTUATOR RED WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SEAT CLIMATE CONTROL MODULE SEO/ALC FUSE 54 STRTR RELAY TO FAN-1 FUSE 57 (DIAGRAM 6 OF 7) FRT WPR FUSE 36 TRAILER STOP BRAKE LAMP CONTROL SWITCH MODULE TRANS IGN 1 FUSE 19 TRANSFER CASE SHIFT CONTROL MODULE (IF EQUIPPED) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ FRONT SEAT COOLING HEATER W/O FRONT TO SEAT COOLING (DIAGRAM HEATER 6 OF 7) W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER CONTROL PCB RELAY WIPER REAR FUEL CHMSL SPEED WASH PMP PCB PCB PCB RELAY RELAY RELAY RELAY YEL WIRE

4.3L BANK 1 BANK 2 SENSOR 2 SENSOR 2 BANK 1 SENSOR 1 BANK 2 SENSOR 1 BLUNT CUT POWER TAKE OFF (PTO) PROVISION CENTRAL SEQUENTIAL FUEL INJECTION (CENTRAL SFI) COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE, W/ LUXURY EAP FUSE 38 ECM/THROT CONT FUSE 5 ELECTRONIC ADJUSTABLE PEDALS PCB RELAY ENG FUSE 4 ENGINE CONTROL MODULE (ECM) EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE EXCEPT 4.3L EXCEPT 4.3L 4.3L EXCEPT HYBRID FAN CNTRL RELAY (EXCEPT 6.0L(VIN J)) FROM AUXILIARY BATTERY RUN RELAY (DIAGRAM 1 OF 7) FROM FRT WPR FUSE 36 (DIAGRAM 5 OF 7) FUEL FUEL INJECTOR INJECTOR FUSE 52 HEATED HEATED OXYGEN OXYGEN SENSOR SENSOR HEATED OXYGEN SENSOR HYBRID W/O ENGINE CONTROL POWER TAKE OFF (PTO) CONTROLS W/ ENGINE CONTROL IGNITION COIL 3 IGNITION IGNITION COIL 1 CONTROL MODULE (ICM) IGNITION IGNITION COIL 5 COIL 7 INJ-A FUSE 24 LEFT I/P J/B (LOWER LEFT SIDE OF DASH) MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR NCA WIRE PARK ENABLE PCB RELAY PNK PNK PNK PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/BLK) PNK (OR WIRE POWER TAKE OFF (PTO) CONTROLS POWER TAKE OFF (PTO) MODULE (IF EQUIPPED) PWR/ TRN RELAY REARVIEW CAMERA IMAGE DISPLAY MODULE RED/WHT WIRE SECURITY INDICATOR LAMP SERIAL DATA GATEWAY (SDG) MODULE (HYBRID) SNSR FUSE 18 SNSR FUSE 8 TO AUXILIARY FUSE BLOCK (DIAGRAM 7 OF 7) TO INJ-B FUSE 13 (DIAGRAM 7 OF 7) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VALVE LIFTER OIL MANIFOLD (VLOM) ASSEMBLY (5.3L, 6.0L(VIN G) VEHICLE INCLINATION SENSOR VEHICLE SHOCK SENSOR W/ AUXILIARY BATTERY W/ REAR VIEW CAMERA W/O REAR VIEW CAMERA W/O W/ REAR VIEW REAR VIEW CAMERA CAMERA YEL WIRE

1 14 11 4 6 PPL PNK ELEM CTRL SPLY VOLT ELEM CTRL ELEM CTRL SPLY VOLT WIRE 1 4 5 6 GND GND B+ B+ 2 3 5 6 PNK LOW REF LOW REF LOW REF LOW REF WIRE 4 1 3 2 TEMP SIG TEMP SIG TEMP SIG TEMP SIG BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DRIVER BACK HEATED SEAT ELEMENT (IN DRIVER'S SEAT BACK) DRIVER CUSHION HEATED SEAT ELEMENT (IN DRIVER'S SEAT CUSHION) DRIVER SEAT 2 GRY WIRE HOT AT ALL TIMES LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MEMORY SEAT MODULE (UNDER FRONT OF DRIVER'S SEAT) NCA WIRE PASSENGER BACK HEATED SEAT ELEMENT (IN PASSENGER'S SEAT BACK) PASSENGER CUSHION HEATED SEAT ELEMENT (IN PASSENGER'S SEAT CUSHION) PNK ELEM CTRL WIRE PNK WIRE PPL RED/WHT WIRE SERIAL DATA TAN WIRE TAN/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CUSHION, BACK HEAT 1 2 3 4 5 6 7 8 B+ GROUND BACK HEAT BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CUSHION TEMP SEAT BACK TEMP BACK HEAT DK BLU WIRE DK GRN WIRE DRIVER BACK HEATED SEAT ELEMENT (IN DRIVER'S SEAT BACK) DRIVER CUSHION HEATED SEAT ELEMENT (IN DRIVER'S SEAT CUSHION) EXCEPT 6.6L 6.6L FUSE 37 FUSE 34 GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HEATED SEAT CONTROL MODULE HOT AT ALL TIMES LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOW HEAT IND HIGH HEAT IND LOW HEAT IND HIGH HEAT IND LOW SPEED GMLAN LT BLU WIRE LT GRN WIRE MEDIUM HEAT IND BACK, CUSHION HEAT IND NCA WIRE PASSENGER BACK HEATED SEAT ELEMENT (IN PASSENGER'S SEAT BACK) PNK DK PPL WIRE PNK LOW REF LOW REF LOW REF LOW REF WIRE PNK WIRE PPL RED/WHT WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

13 14 15 16 17 PPL BACK BACK IND BLK WIRE BLU WIRE BRN WIRE CUSHION, BACK CUSHION, BACK IND DK BLU WIRE DK GRN WIRE DRIVER HEATED SEAT SWITCH GRY WIRE LT BLU WIRE MID NCA WIRE PASSENGER CUSHION HEATED SEAT ELEMENT (IN PASSENGER'S SEAT CUSHION) PASSENGER HEATED SEAT SWITCH PNK LT DK WIRE PNK LT WIRE PNK WIRE PPL PPL/WHT WIRE TAN WIRE WHT/BLK WIRE YEL WIRE

2 3 4 GMLAN 3 10 B+ GMLAN 4 6 B+ GND 4 6 B+ LOCK GND 7 9 LCK CNTRL UNLCK CNTRL 9 4 5 7 8 GMLAN SW SIG LOW REF LCK CNTRL PPL UNLCK CNTRL 9 7 8 GMLAN LCK CNTRL UNLCK CNTRL UNLOCK BCM FUSE 15 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) COAX COMPUTER DATA LINES SYSTEM DDM FUSE 4 DIM FUSE 7 DK GRN WIRE DRIVER DOOR LOCK SWITCH DRIVER DOOR LOCK/ WINDOW SWITCH DSM FUSE 25 GMLAN DRIVER INFORMATION CENTER (DIC) DISPLAY GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INSTRUMENT PANEL CLUSTER (IPC) KEY SWITCH KEYLESS ENTRY ANTENNA LCK 1 FUSE 21 LOCK LOCK ACTUATOR LOCK/ UNLOCK PCB RELAY LOGIC LT BLU WIRE LT GRN WIRE PACKAGE PASSENGER DOOR LOCK SWITCH PASSENGER DOOR LOCK/ WINDOW SWITCH PDM FUSE 9 POWER DISTRIBUTION SYSTEM PPL RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (TOP REAR OF PASSENGER COMPT) RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT REAR DOOR LATCH ASSEMBLY (CREW CAB: REAR OF RIGHT REAR DOOR) SECURITY INDICATOR LOGIC TAN WIRE UNLCK 1 FUSE 18 UNLOCK W/ COMFORT, DECOR LEVEL 3 CONVENIENCE WHT WIRE YEL WIRE

1 2 4 10 5 7 RETRACT CTRL EXTEND CTRL SENS SIG LOW REF SENS SIG 2 6 1 7 3 9 4 POSITION CTRL MTR COMM POSITION CTRL SPLY VOLT LOW REF 4 6 B+ GND 9 2 12 SERIAL DATA PNK WIRE AUTOMATIC DAY/NIGHT MIRROR BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM ELECTROCHROMIC DDM FUSE 4 DEFOGGER SWITCH DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DOWN L/R SELECT DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER OUTSIDE REARVIEW MIRROR EXTEND GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK (LEFT SIDE OF DASH, L/R SELECT SW PWR LEFT LOGIC LT BLU WIRE MIRROR CIRCUIT OUTSIDE REARVIEW MIRROR SWITCH PNK WIRE RED/WHT WIRE RETRACT RIGHT WHT WIRE YEL WIRE

1 2 4 10 5 7 RETRACT CTRL EXTEND CTRL SENS SIG LOW REF SENS SIG 2 6 1 3 7 POSITION CTRL MTR COMM POSITION CTRL LOW REF SPLY VOLT 4 6 B+ GND BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE GRY/BLK WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PASSENGER DOOR LOCK/ WINDOW SWITCH PASSENGER OUTSIDE REARVIEW MIRROR PDM FUSE 9 POWER DISTRIBUTION SYSTEM PPL RED/WHT WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) SERIAL DATA WHT WIRE YEL WIRE

ACCESSORY VOLTAGE B+ VOLT BLK WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CREW CAB DK BLU WIRE DK GRN WIRE DOWN DOWN SIG DRIVER WINDOW MOTOR (INSIDE DRIVER'S DOOR) DRIVER WINDOW SWITCH EXPRESS EXTENDED CAB W/ REAR SIDE ACCESS DOOR GROUND HOT AT ALL TIMES HOT AT ALL TIMES LT DR CIRCUIT BREAKER I/P FUSE BLOCK (LEFT SIDE OF DASH, ILLUMINATION LEFT FRONT WINDOW SWITCH LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT REAR WINDOW MOTOR (IN LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LF DOWN CTRL LF UP CTRL LOCKOUT RR CTRL LOCKOUT SIG LOGIC LOGIC B+ DOWN LR DOWN CTRL SIG LR DOWN SIG LR UP CTRL LR UP SIG LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE PASS DOWN SIG PASS UP SIG PASSENGER WINDOW MOTOR (INSIDE PASSENGER'S DOOR) PASSENGER WINDOW SWITCH PPL PPL RR DOWN SIG RED/WHT WIRE RF DOWN CTRL RF UP CTRL RIGHT FRONT WINDOW SWITCH RIGHT REAR WINDOW MOTOR (IN RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DOWN CTRL RR DOWN SIG RR UP CTRL RR UP SIG RT DOORS CIRCUIT SIG TAN WIRE UP PPL LR DOWN SIG UP SIG WHT WIRE WINDOW SWITCH (RIGHT REAR) YEL WIRE

2 1 FM ANT FM ANT 3 2 1 IGN 6 5 4 3 2 1 IGN VOLT GND L AUDIO (+) R AUDIO (+) VIDEO SIG A (+) VIDEO COM (-) 6 5 4 3 2 1 IGN VOLT GND L AUDIO (+) R AUDIO (+) VIDEO SIG B (+) VIDEO COM (-) BLK WIRE CLOCK SIG L AUDIO (+) R AUDIO (+) VIDEO SIG A (+) VIDEO COM (-) CLOCK SIG L AUDIO (+) R AUDIO (+) VIDEO SIG B (+) VIDEO COM(-) DIGITAL VIDEO DISC (DVD) CONTROL MODULE DRIVER SEAT HEADREST DIGITAL VIDEO DISC (DVD) DISPLAY FM ANTENNA GAS DIESEL GROUND DISTRIBUTION SYSTEM HOT W/ RUN/CRNK RELAY ENERGIZED PASSENGER SEAT HEADREST DIGITAL VIDEO DISC (DVD) DISPLAY PNK WIRE RED WIRE SEO/ALC FUSE 54 FUSE 51 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE