GMC Sierra 1500 (2000-2012) red/blk Wiring diagrams

ALC/ COMP S/ROOF FUSE 35 FUSE 38 FUSE 60 AUXILIARY BATTERY AUXILIARY BATTERY RELAY (RIGHT REAR CORNER OF ENGINE COMPT) B(+) B+ A+ BATTERY (RIGHT) BLK WIRE CAMPER/ FIFTH WHEEL TRAILER PROVISION (BLUNT CUT) DK GRN WIRE DUAL BATTERY EMERGENCY VEHICLE EMERGENCY VEHICLE PROVISION (BLUNT CUT) EMERGENCY VEHICLE ROOF LAMP RELAY ROOF BEACON RELAY EMERGENCY VEHICLE WRECKER EXCEPT CAMPER/ FIFTH WHEEL TRAILER CAMPER/ FIFTH WHEEL TRAILER FUSE B FUSE D FUSE A FUSE C FUSE BLOCK (MOBILE RADIO) (BEHIND RIGHT SIDE OF DASH) FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) MEGA FUSE FUSIBLE LINK 1 FUSIBLE LINK 2 FUSIBLE LINK 3 BATTERY (LEFT) GARAGE DOOR OPENER GENERATOR IGNIII IGNIII IGNIII INCLINATION SENSOR SECURITY INDICATOR LAMP J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) J/B (RIGHT I/P) J/B (RIGHT I/P) J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) (RIGHT END OF DASH) LGM FUSE 73 LT BLU WIRE LT GRN WIRE MEGA FUSE MEGA FUSE MEGA FUSE NCA WIRE ORG/ WIRE PACKAGE POWER POWER TAKE-OFF MODULE RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY RELAY A RELAY B RIGHT END OF DASH) ROOF BEACON ROOF BEACON OR SUNROOF ROOF BEACON SWITCH ROOF-MOUNTED (EMERGENCY) LIGHTING RUN WIRE SLIDING REAR WINDOW- SWITCH SUNROOF MODULE WINDOW SWITCH- PASSENGER STARTER STUD 1 FUSE 70 STUD 2 FUSE 65 FUSE 54 SUN ROOF SUNROOF MODULE (B) TO CTSY FUSE (DIAGRAM 2 OF 5) TO PDM FUSE (DIAGRAM 2 OF 5) TO RUN/CRANK RELAY (DIAGRAM 5 OF 5) TO S/ROOF FUSE (SAME DIAGRAM) TRAILER BRAKE CONTROLLER SOLID STATE RELAY TRAILER BRAKE PROVISION (BLUNT CUT) TRAILER CONNECTOR SHOCK SENSOR WHT WIRE WINDOW SWITCH- DRIVER WRECKER RELAY (RIGHT REAR CORNER OF ENGINE COMPT) YEL WIRE

* PREMIUM SOUND AUTOMATIC POWER MIRROR AUX AUX PWR 2 PWR FUSE FUSE AUXILIARY POWER OUTLET (BIN) AUXILIARY POWER OUTLET (CENTER SEAT) AUXILIARY POWER OUTLET (CONSOLE) AUXILIARY POWER- OUTLET- FRONT 1 AUXILIARY POWER- OUTLET- FRONT 2 BLK WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) REAR OBJECT SENSOR CONTROL MODULE COOLED SEATS RT STOP TRN CTSY BCM DIM FUSE FUSE FUSE FUSE FUSE CREW CAB W/ INDIVIDUAL FRONT SEATS DATA LINK CONNECTOR DDM PWR MIR FUSE FUSE DOOR LATCH ASSEMBLY (DRIVER) DOOR LATCH ASSEMBLY (RIGHT REAR) DOOR LATCH ASSEMBLY (LEFT REAR) DRIVER DOOR SWITCH (DDS) DRIVER DOOR SWITCH (DDS) OUTSIDE REAR VIEW MIRROR SWITCH DSM FUSE DVR UNLCK FUSE EXCEPT CONSOLE EXCEPT PREMIUM SOUND FROM J/B (LEFT I/P) FROM LGM FUSE (DIAGRAM 1 OF 5) FUSE FUSE BLOCK (I/P) (LEFT SIDE OF DASH) FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) GRY WIRE IS LPS LT STOP TRN FUSE FUSE FUSE J/B (LEFT I/P) J/B (RIGHT I/P) LBEC 1 FUSE 66 LBEC 2 FUSE 74 LCK 2 LCK 1 FUSE FUSE LOCK PCB RELAY LOCK/ UNLOCK PCB RELAY LT DR CIRCUIT BREAKER LTR FUSE 55 LUXURY EDITION EXCEPT LUXURY EDITION MEMORY SEAT MODULE OBS DET PASSENGER DOOR SWITCH (PDS) PDM FUSE POWER LOCKS W/O AUTOMATIC POWER MIRROR REAR HVAC REAR SEAT) REAR WPR RED WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) RIGHT END OF DASH) STOP LAMPS TAN WIRE UNLCK 1 LCK 1 FUSE FUSE UNLCK 2 UNLCK 1 FUSE FUSE UNLOCK PCB RELAY W/ CONSOLE W/O AUTOMATIC POWER MIRROR WHT WIRE WINDOW SWITCH) (LEFT REAR) WINDOW SWITCH- DRIVER

A/C CMPRSR RELAY AIR BAG BATT FUSE 46 AMP FUSE 42 AUDIO AMPLIFIER BODY CONTROL MODULE (BCM) CHIME MODULE COOLING FAN (LEFT) COOLING FAN (RIGHT) DIGITAL RADIO RECEIVER DK GRN WIRE ECM BATT ELEC RUN BOARD ENGINE CONTROL MODULE (ECM) ESC/ALH EXH EXCEPT LUXURY NO RADIO EXP/ PTO FAN 1 FUSE FAN LO RELAY FAN WIPER HI CONTROL RELAY PCB RELAY FAN-2 FRT WPR FUSE FUSE 37 FROM LGM FUSE (DIAGRAM 1 OF 5) FRT WASH PCB RELAY FSCM FUSE 22 FUEL PUMP RELAY FUEL SYSTEM CONTROL MODULE (FSCM) FUSE 13 FUSE 15 FUSE 23 FUSE 3 FUSE 40 FUSE 49 FUSE 67 FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) GPS, REAR ENTER- TAINMENT EXCEPT LUXURY GRY WIRE HDLP WASH HEAVY DUTY ABS WSW/HTR FUSE 61 FUSE 68 HORN PCB RELAY HVAC BATT HVAC BLWR FUSE 72 HVAC CONTROL MODULE INFOTMNT FUSE 47 INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 48 ITBC ABS-1 ABS 2 FUSE 7 FUSE 63 FUSE 10 J/B (LEFT I/P) J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) LT BLU WIRE LUXURY NCA WIRE POWER TAKE-OFF (BLUNT CUT) POWER TAKE-OFF (PTO) RELAY PPL PREMIUM AUDIO EXCEPT LUXURY PREMIUM AUDIO W/LUXURY RADIO REAR SEAT AUDIO (RSA) CONTROLLER RDO FUSE 43 REAR DEFOG RELAY REAR ENTER- TAINMENT EXCEPT LUXURY REAR ENTER- TAINMENT W/LUXURY REAR ENTER- TAINMENT W/LUXURY GPS EXCEPT LUXURY GPS W/ LUXURY RED WIRE RED/BLK WIRE RED/WHT WIRE STRTR RELAY TCM BATT TRAILER BRAKE CONTROLLER MODULE (TBCM) ELECTRONIC BRAKE CONTROL MODULE (EBCM) TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE TREC FUSE 69 VIDEO COMMUNICATION INTERFACE MODULE (VCIM) VIDEO DISPLAY WHT WIRE WINDSHIELD WASHER SOLVENT HEATER J/B (RIGHT I/P) WINDSHIELD WIPER MOTOR WIPER SPEED PCB RELAY

ALC/ COMP S/ROOF FUSE 35 FUSE 38 FUSE 60 AUXILIARY BATTERY AUXILIARY BATTERY RELAY (RIGHT REAR CORNER OF ENGINE COMPT) B(+) B+ A+ BATTERY (RIGHT) BLK WIRE CAMPER/ FIFTH WHEEL TRAILER PROVISION (BLUNT CUT) DK GRN WIRE DUAL BATTERY EMERGENCY VEHICLE EMERGENCY VEHICLE PROVISION (BLUNT CUT) EMERGENCY VEHICLE ROOF LAMP RELAY ROOF BEACON RELAY EMERGENCY VEHICLE WRECKER EXCEPT CAMPER/ FIFTH WHEEL TRAILER CAMPER/ FIFTH WHEEL TRAILER FUSE B FUSE D FUSE A FUSE C FUSE BLOCK (MOBILE RADIO) (BEHIND RIGHT SIDE OF DASH) FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) MEGA FUSE FUSIBLE LINK 1 FUSIBLE LINK 2 FUSIBLE LINK 3 BATTERY (LEFT) GARAGE DOOR OPENER GENERATOR IGNIII IGNIII IGNIII INCLINATION SENSOR SECURITY INDICATOR LAMP J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) J/B (RIGHT I/P) J/B (RIGHT I/P) J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) (RIGHT END OF DASH) LGM FUSE 73 LT BLU WIRE LT GRN WIRE MEGA FUSE MEGA FUSE MEGA FUSE NCA WIRE ORG/ WIRE PACKAGE POWER POWER TAKE-OFF MODULE RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY RELAY A RELAY B RIGHT END OF DASH) ROOF BEACON ROOF BEACON OR SUNROOF ROOF BEACON SWITCH ROOF-MOUNTED (EMERGENCY) LIGHTING RUN WIRE SLIDING REAR WINDOW- SWITCH SUNROOF MODULE WINDOW SWITCH- PASSENGER STARTER STUD 1 FUSE 70 STUD 2 FUSE 65 FUSE 54 SUN ROOF SUNROOF MODULE (B) TO CTSY FUSE (DIAGRAM 2 OF 5) TO PDM FUSE (DIAGRAM 2 OF 5) TO RUN/CRANK RELAY (DIAGRAM 5 OF 5) TO S/ROOF FUSE (SAME DIAGRAM) TRAILER BRAKE CONTROLLER SOLID STATE RELAY TRAILER BRAKE PROVISION (BLUNT CUT) TRAILER CONNECTOR SHOCK SENSOR WHT WIRE WINDOW SWITCH- DRIVER WRECKER RELAY (RIGHT REAR CORNER OF ENGINE COMPT) YEL WIRE

* PREMIUM SOUND AUTOMATIC POWER MIRROR AUX AUX PWR 2 PWR FUSE FUSE AUXILIARY POWER OUTLET (BIN) AUXILIARY POWER OUTLET (CENTER SEAT) AUXILIARY POWER OUTLET (CONSOLE) AUXILIARY POWER- OUTLET- FRONT 1 AUXILIARY POWER- OUTLET- FRONT 2 BLK WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) REAR OBJECT SENSOR CONTROL MODULE COOLED SEATS RT STOP TRN CTSY BCM DIM FUSE FUSE FUSE FUSE FUSE CREW CAB W/ INDIVIDUAL FRONT SEATS DATA LINK CONNECTOR DDM PWR MIR FUSE FUSE DOOR LATCH ASSEMBLY (DRIVER) DOOR LATCH ASSEMBLY (RIGHT REAR) DOOR LATCH ASSEMBLY (LEFT REAR) DRIVER DOOR SWITCH (DDS) DRIVER DOOR SWITCH (DDS) OUTSIDE REAR VIEW MIRROR SWITCH DSM FUSE DVR UNLCK FUSE EXCEPT CONSOLE EXCEPT PREMIUM SOUND FROM J/B (LEFT I/P) FROM LGM FUSE (DIAGRAM 1 OF 5) FUSE FUSE BLOCK (I/P) (LEFT SIDE OF DASH) FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) GRY WIRE IS LPS LT STOP TRN FUSE FUSE FUSE J/B (LEFT I/P) J/B (RIGHT I/P) LBEC 1 FUSE 66 LBEC 2 FUSE 74 LCK 2 LCK 1 FUSE FUSE LOCK PCB RELAY LOCK/ UNLOCK PCB RELAY LT DR CIRCUIT BREAKER LTR FUSE 55 LUXURY EDITION EXCEPT LUXURY EDITION MEMORY SEAT MODULE OBS DET PASSENGER DOOR SWITCH (PDS) PDM FUSE POWER LOCKS W/O AUTOMATIC POWER MIRROR REAR HVAC REAR SEAT) REAR WPR RED WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) RIGHT END OF DASH) STOP LAMPS TAN WIRE UNLCK 1 LCK 1 FUSE FUSE UNLCK 2 UNLCK 1 FUSE FUSE UNLOCK PCB RELAY W/ CONSOLE W/O AUTOMATIC POWER MIRROR WHT WIRE WINDOW SWITCH) (LEFT REAR) WINDOW SWITCH- DRIVER

A/C CMPRSR RELAY AIR BAG BATT FUSE 46 AMP FUSE 42 AUDIO AMPLIFIER BODY CONTROL MODULE (BCM) CHIME MODULE COOLING FAN (LEFT) COOLING FAN (RIGHT) DIGITAL RADIO RECEIVER DK GRN WIRE ECM BATT ELEC RUN BOARD ENGINE CONTROL MODULE (ECM) ESC/ALH EXH EXCEPT LUXURY NO RADIO EXP/ PTO FAN 1 FUSE FAN LO RELAY FAN WIPER HI CONTROL RELAY PCB RELAY FAN-2 FRT WPR FUSE FUSE 37 FROM LGM FUSE (DIAGRAM 1 OF 5) FRT WASH PCB RELAY FSCM FUSE 22 FUEL PUMP RELAY FUEL SYSTEM CONTROL MODULE (FSCM) FUSE 13 FUSE 15 FUSE 23 FUSE 3 FUSE 40 FUSE 49 FUSE 67 FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) GPS, REAR ENTER- TAINMENT EXCEPT LUXURY GRY WIRE HDLP WASH HEAVY DUTY ABS WSW/HTR FUSE 61 FUSE 68 HORN PCB RELAY HVAC BATT HVAC BLWR FUSE 72 HVAC CONTROL MODULE INFOTMNT FUSE 47 INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 48 ITBC ABS-1 ABS 2 FUSE 7 FUSE 63 FUSE 10 J/B (LEFT I/P) J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) LT BLU WIRE LUXURY NCA WIRE POWER TAKE-OFF (BLUNT CUT) POWER TAKE-OFF (PTO) RELAY PPL PREMIUM AUDIO EXCEPT LUXURY PREMIUM AUDIO W/LUXURY RADIO REAR SEAT AUDIO (RSA) CONTROLLER RDO FUSE 43 REAR DEFOG RELAY REAR ENTER- TAINMENT EXCEPT LUXURY REAR ENTER- TAINMENT W/LUXURY REAR ENTER- TAINMENT W/LUXURY GPS EXCEPT LUXURY GPS W/ LUXURY RED WIRE RED/BLK WIRE RED/WHT WIRE STRTR RELAY TCM BATT TRAILER BRAKE CONTROLLER MODULE (TBCM) ELECTRONIC BRAKE CONTROL MODULE (EBCM) TRANSFER CASE ENCODER MOTOR TRANSFER CASE SHIFT CONTROL MODULE TREC FUSE 69 VIDEO COMMUNICATION INTERFACE MODULE (VCIM) VIDEO DISPLAY WHT WIRE WINDSHIELD WASHER SOLVENT HEATER J/B (RIGHT I/P) WINDSHIELD WIPER MOTOR WIPER SPEED PCB RELAY

ALC/ COMP S/ROOF FUSE 35 FUSE 38 FUSE 60 AUXILIARY BATTERY AUXILIARY BATTERY RELAY (RIGHT REAR CORNER OF ENGINE COMPT) B(+) B+ A+ BATTERY (RIGHT) BLK WIRE CAMPER/ FIFTH WHEEL TRAILER PROVISION (BLUNT CUT) DK GRN WIRE DUAL BATTERY EMERGENCY VEHICLE EMERGENCY VEHICLE PROVISION (BLUNT CUT) EMERGENCY VEHICLE ROOF LAMP RELAY ROOF BEACON RELAY EMERGENCY VEHICLE WRECKER EXCEPT CAMPER/ FIFTH WHEEL TRAILER CAMPER/ FIFTH WHEEL TRAILER FUSE B FUSE D FUSE A FUSE C FUSE BLOCK (MOBILE RADIO) (BEHIND RIGHT SIDE OF DASH) FUSE BLOCK (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) FUSE HOLDER (UNDERHOOD) (RIGHT SIDE OF FIREWALL) MEGA FUSE FUSIBLE LINK 1 FUSIBLE LINK 2 FUSIBLE LINK 3 BATTERY (LEFT) GARAGE DOOR OPENER GENERATOR IGNIII IGNIII IGNIII INCLINATION SENSOR SECURITY INDICATOR LAMP J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) J/B (RIGHT I/P) J/B (RIGHT I/P) J/B (LEFT I/P) (LOWER LEFT SIDE OF DASH) (RIGHT END OF DASH) LGM FUSE 73 LT BLU WIRE LT GRN WIRE MEGA FUSE MEGA FUSE MEGA FUSE NCA WIRE ORG/ WIRE PACKAGE POWER POWER TAKE-OFF MODULE RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY RELAY A RELAY B RIGHT END OF DASH) ROOF BEACON ROOF BEACON OR SUNROOF ROOF BEACON SWITCH ROOF-MOUNTED (EMERGENCY) LIGHTING RUN WIRE SLIDING REAR WINDOW- SWITCH SUNROOF MODULE WINDOW SWITCH- PASSENGER STARTER STUD 1 FUSE 70 STUD 2 FUSE 65 FUSE 54 SUN ROOF SUNROOF MODULE (B) TO CTSY FUSE (DIAGRAM 2 OF 5) TO PDM FUSE (DIAGRAM 2 OF 5) TO RUN/CRANK RELAY (DIAGRAM 5 OF 5) TO S/ROOF FUSE (SAME DIAGRAM) TRAILER BRAKE CONTROLLER SOLID STATE RELAY TRAILER BRAKE PROVISION (BLUNT CUT) TRAILER CONNECTOR SHOCK SENSOR WHT WIRE WINDOW SWITCH- DRIVER WRECKER RELAY (RIGHT REAR CORNER OF ENGINE COMPT) YEL WIRE

ABS PUMP MOTOR ABS-1 FUSE 61 FUSE 56 ABS-2 FUSE 9 FUSE 8 AGLE SNS A BLK WIRE BLK/WHT WIRE BRK SNS VEH SPD SIG LOW REF BRN WIRE CAN H GND CAN L B+ GMLAN + GMLAN + LOW REF AGLE SNS B AGLE SNS C RR WHL SNS COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF FRAME ASSEMBLY) GMLAN - GMLAN - PWR BRK H GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT WHEEL SPEED SENSOR (WSS) (ON LEFT FRONT STEERING KNUCKLE) LEFT REAR WHEEL SPEED SENSOR (WSS) (ON LEFT REAR BRAKE BACKING PLATE) LF WHL SNS COMM DATA LOGIC LR WHL SNS LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PPL/WHT WIRE PWR BRK L ANGLE SNS RADIO RED WIRE RED/BLK WIRE RF WHL SNS RIGHT REAR WHEEL SPEED SENSOR (WSS) (ON RIGHT REAR BRAKE BACKING PLATE) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ LUXURY EDITION W/O LUXURY EDITION EXCEPT 6.6L YEL WIRE YEL/BLK WIRE

12 13 812 7062 PPL BRK SIG 16 17 19 2500 2501 5986 GMLAN + GMLAN - COMM DATA 4.8L, 5.3L (VIN J), 5.3L (VIM M), 6.0L (VIN Y), 6.2L (VIN 8) ABS INDICATOR ABS PUMP MOTOR ABS-1 FUSE 61 ABS-2 FUSE 9 B+ GMLAN + GMLAN + VEH SPD SIG BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE INDICATOR COMM DATA COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (ON LEFT SIDE OF FRAME ASSEMBLY) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FUEL SYSTEM CONTROL MODULE (FSCM) (UNDER REAR OF VEHICLE) GMLAN - GMLAN + GRY/WHT WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) INSTRUMENT PANEL CLUSTER (IPC) LEFT FRONT WHEEL SPEED SENSOR (WSS) (ON LEFT FRONT STEERING KNUCKLE) LF WHL SNS LOGIC LT BLU WIRE LT BLU/BLK WIRE NCA WIRE ORG/WHT WIRE PARK BRAKE SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) POWER TAKE OFF (PTO) MODULE (OUTSIDE OF RIGHT FRONT CHASSIS FRAME) PPL PRK BRK SW RADIO RED WIRE RED/BLK WIRE RF WHL SNS RIGHT FRONT WHEEL SPEED SENSOR (WSS) (ON RIGHT FRONT STEERING KNUCKLE) STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/BLK WIRE VEH SPD SIG W/ LUXURY EDITION W/O LUXURY EDITION EXCEPT 4.3L 4.3L YEL WIRE YEL/BLK WIRE

2501 2500 7631 944 COMPUTER DATA LINES SYSTEM 2501 2500 COMPUTER DATA LINES SYSTEM B+ RLY ENABLE BLK RED/ WIRE BLK WIRE BRN WIRE COMM DATA COMPUTER DATA LINES SYSTEM DK BLU WIRE EXCEPT 10 SERIES EXCEPT 10 SERIES 10 SERIES EXCEPT 6.6L 6.6L W/O 10 SERIES FSCM FUSE 21 GMLAN - GMLAN + GMLAN - GMLAN + LOW REF RLY FEEDBACK HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) ITBC FUSE 6 FUSE 19 LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MISC IGN FUSE 43 FUSE 40 PNK WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/WHT WIRE STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STUD 2 FUSE 63 FUSE 58 TAN WIRE TAN/BLK WIRE TCC BRK SIG TRAILER BRAKE (BLUNT CUT) TRAILER BRAKE CONTROL SWITCH TRAILER CONNECTOR (AT REAR OF VEHICLE) TRAILER) TRL BRK RLY IGN 1 VOLT TRL BRK SIG TRL BRK SIG RLY FEEDBACK W/ HEAVY DUTY TRAILER WHEEL HARNESS TRAILER WHEEL TRAILER CAMPER TRAILER PROVISION (BLUNT CUT) (ON LEFT REAR BODY MOUNT) WHT WIRE YEL WIRE YEL/BLK WIRE