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

6 SPEED A/T 6.0L (VIN K) AUTOMATIC A/C AUXILIARY BATTERY AUXILIARY BATTERY RELAY (IF EQUIPPED) (REAR OF ENGINE COMPT) BLK WIRE BODY BUILDER EMERGENCY LAMP BODY INSTRUMENT CONTROL PANEL MODULE CLUSTER (BCM) (IPC) DK GRN WIRE EMERGENCY VEHICLE WIRING (BLUNT CUT) ENGINE TRANSMISSION CONTROL CONTROL MODULE MODULE (ECM) (TCM) EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID VALVE FROM LEFT I/P J/B (DIAGRAM 4 OF 6) FROM UNDERHOOD FUSE BLOCK (DIAGRAM 6 OF 6) FUSE FUSE FUSE FUSE HOLDER (RIGHT SIDE FUSIBLE LINK 1 (14 GA- FUSIBLE LINK 2 (14 GA- FUSIBLE LINK 3 GENERATOR HDLP WASH FUSE 22 HVAC CONTROL MODULE (ON RIGHT FRONT CORNER OF HVAC MODULE) HVAC LTR BATT FUSE 53 FUSE 39 I/P 1 ACCESSORY POWER OUTLET DATA LINK CONNECTOR (DLC) MANUAL A/C IPC FUSE 46 ITBC FUSE 6 TREC FUSE 67 FUSE 37 LEFT BATTERY LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MEGA FUSE (RIGHT REAR OF ENGINE COMPT) MEGA MEGA FUSE FUSE MEGA OF FIREWALL) FUSE MOBILE RADIO FUSE BLOCK FUSE (BEHIND RIGHT SIDE OF DASH) MODULE NCA WIRE ORG/ WIRE POWER SUPPLY POWER SUPPLY, AUXILIARY BATTERY RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY RELAY A RELAY B RIGHT BATTERY RIGHT I/P J/B (IN RIGHT END OF DASH) RUN WIRE STARTER STUD 2 FUSE 63 TCM-BATT ECM- FUSE 14 BATT FUSE 12 TO ROOF BEACON SWITCH (DIAGRAM 2 OF 6) TO STUD 1 FUSE 68 (DIAGRAM 2 OF 6) TO UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 6) TO UNDERHOOD FUSE BLOCK (DIAGRAM 3 OF 6) TRAILER BRAKE (BLUNT CUT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ AUXILIARY BATTERY W/ EMERGENCY VEHICLE ROOF LAMP RELAY W/ WRECKER EMERGENCY LAMP PROVISIONS W/ WRECKER RELAY (4.3L) (TOP LEFT REAR OF ENGINE) WHT WIRE WRECKER RELAY WSW/HTR FUSE 66 YEL WIRE

ABS-1 FUSE 61 ABS-2 FUSE 9 BLK WIRE BLOWER MOTOR CONTROL MODULE BODY CONTROL MODULE (BCM) BRAKE CONTROL COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE COOLED CTSY TRN FUSE FUSE DIM RT STOP BCM FUSE SEATS FUSE FUSE DK GRN WIRE DRIVER DRIVER DOOR LOCK/ WINDOW WINDOW SWITCH SWITCH DRIVER POWER SEAT ADJUSTER DRIVER SEAT 2 CIRCUIT ELEC RUN BOARD FUSE 65 ELECTRONIC BRAKE CONTROL MODULE (EBCM) EXCEPT 4.3L, 5.3L (VIN O), 6.0L, 5.3L (VIN 3) FROM FUSIBLE LINK 3 (DIAGRAM 1 OF 6) FROM IPC FUSE 46 (DIAGRAM 1 OF 6) FROM PDM FUSE (DIAGRAM 3 OF 6) FSCM FUSE 21 FUEL SYSTEM CONTROL MODULE (FSCM) HEAVY DUTY ABS FUSE 59 HVAC BLWR FUSE 70 HYDRAULIC POWER I/P FUSE BLOCK (LEFT SIDE OF DASH) FROM PDM FUSE (DIAGRAM 3 OF 6) LBEC 2 FUSE 72 LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LT DR CIRCUIT BREAKER MBEC 1 FUSE 69 MEMORY DRIVER SEAT SEAT MODULE ADJUSTER (MSM) SWITCH OUTSIDE REARVIEW MIRROR SWITCH PASS SEAT 1 CIRCUIT PASSENGER PASSENGER SEAT SEAT LUMBAR ADJUSTER SWITCH SWITCH PASSENGER POWER SEAT ADJUSTER PASSENGER WINDOW SWITCH PWR REAR WNDW CIRCUIT REAR DSM DDM HVAC FUSE FUSE FUSE REAR REAR SEAT FUSE OBS DET FUSE PWR WPR MIR FUSE FUSE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RIGHT PASSENGER REAR DOOR LOCK/ WINDOW WINDOW SWITCH SWITCH ROOF BEACON RELAY (IN OVERHEAD CONSOLE) ROOF BEACON SWITCH ROOF MOUNTED BEACON (BLUNT CUT) RT DOORS CIRCUIT S/ROOF FUSE 34 SLIDING SLIDING REAR REAR WINDOW WINDOW OPEN CLOSE RELAY RELAY STUD 1 FUSE 68 (AUXILIARY BATTERY) SUNROOF MODULE TO LGM FUSE 71 (DIAGRAM 3 OF 6) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ ACTIVE, VACUUM POWER BRAKE CONTROL W/ INDIVIDUAL FRONT SEAT W/ INDIVIDUAL FRONT SEAT W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ INDIVIDUAL W/O INDIVIDUAL FRONT SEAT, FRONT SEAT, POWER MIRROR POWER MIRROR W/ RESTRAINT SYSTEM W/ ROOF BEACON RELAY W/ SUNROOF W/ TRUCK TRAILER HD WIRING HARNESS W/ WRECKER W/ ROOF, EMERGENCY BEACON VEHICLE RELAY ROOF LAMP RELAY W/O INDIVIDUAL FRONT SEAT W/O INDIVIDUAL FRONT SEAT, POWER MIRROR W/O W/ INDIVIDUAL INDIVIDUAL FRONT SEAT FRONT SEAT WHT WIRE

2 OF 6) AIR BAG BATT FUSE 45 ALC/COMP FUSE 58 AMP FUSE 41 AUTOMATIC A/C AUX PWR 2 FUSE AUX PWR FUSE BLK WIRE BODY CONTROL MODULE (BCM) CENTER CONSOLE ACCESSORY POWER OUTLET CENTER CONSOLE COMPARTMENT ACCESSORY POWER OUTLET CHIME POWER MODULE TAKE OFF (PTO) RELAY COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE CREW CAB W/ INDIVIDUAL FRONT SEAT REAR SEAT ENT FUSE LOCK/UNLOCK PCB RELAY ESC/ALC EXH FUSE 2 EXP/PTO FUSE 47 FROM AUXILIARY BATTERY RUN RELAY (DIAGRAM 1 OF 6) FROM FSCM FUSE 21 (DIAGRAM 2 OF 6) GARAGE DOOR OPENER (GDO) HVAC CONTROL MODULE I/P 2 ACCESSORY POWER OUTLET I/P FUSE BLOCK (LEFT SIDE OF DASH) TO LT DR CIRCUIT BREAKER (DIAGRAM INFLATABLE RESTRAINT VEHICLE ROLLOVER SENSOR INFO FUSE LBEC 1 FUSE 64 LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LGM FUSE 71 LUXURY EDITION MERCHANDISED PACKAGE MANUAL A/C NCA WIRE OF HVAC MODULE) ORG/ WIRE PDM FUSE (W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE, LUXURY) POWER LOCKS W/O INDIVIDUAL FRONT SEAT, POWER MIRROR POWER TAKE OFF (BLUNT CUT) PREMIUM AUDIO BRANDED W/ AMPLIFIER SPEAKER SYSTEM RADIO RDO FUSE 42 REAR SEAT AUDIO (RSA) CONTROL (IF EQUIPPED) RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RIGHT I/P J/B (IN RIGHT END OF DASH) CENTER SEAT ACCESSORY POWER OUTLET STOP IS LPS FUSE LT STOP TRN FUSE LAMPS FUSE TO BODY CONTROL MODULE (DIAGRAM 4 OF 6) TO DLIS FUSE 35 (DIAGRAM 4 OF 6) TO LEFT I/P BLOCK (DIAGRAM 2 OF 6) PASSENGER DOOR LOCK/ WINDOW SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNLOCK PCB LOCK PCB RELAY RELAY VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) VIDEO DISPLAY PERFORMANCE ENHANCED AUDIO W/ CUSTOM CONSOLE FRONT COMPT FLOOR W/ HEAD CURTAIN AIR BAG W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ LUXURY W/ REAR SEAT ENTERTAIN- MENT PACKAGE W/ UNIVERSAL GARAGE DOOR OPENER W/ W/O LUXURY LUXURY W/ WRECKER, EMERGENCY VEHICLE ROOF LAMP, ROOF BEACON RELAY W/O LUXURY W/O LUXURY W/ LUXURY W/O RADIO W/O W/ LUXURY LUXURY WHT WIRE WINDSHIELD WASHER SOLVENT HEATER (IF EQUIPPED)

2 SPEED MANUAL SHIFT CONTROL TRANSFER CASE 4.3L 6 SPEED A/T A/C CMPRSR RELAY AUTOMATIC TRANSMISSION AUX HVAC-IGN FUSE 48 BCK/UP LAMP PCB RELAY BLK WIRE BRN WIRE DRL PCB RELAY ECM-IGN FUSE 56 ELECTRONIC ENGINE CONTROL MODULE (ECM) FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 6) FROM DLIS FUSE 35 (DIAGRAM 4 OF 6) FRONT DRIVE AXLE ACTUATOR FRT WASH PCB RELAY FUEL SYSTEM CONTROL MODULE (FSCM) HDLP LO/HID RELAY HEATED STEERING FUSE HI BEAM PCB RELAY HORN PCB RELAY HVAC-IGN FUSE 55 INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE PCB RELAY LEFT AIR TEMPERATURE ACTUATOR (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) (NOT USED) MISC ING FUSE 43 MODE ACTUATOR NCA WIRE PARK LAMP RELAY PNK PNK WIRE PNK WIRE POWER TAKE OFF (IF EQUIPPED) (BLUNT CUT) REAR DEFOG RELAY RECIRCULATION ACTUATOR RED WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECONDARY FUEL PUMP RELAY (6.0L (VIN K) W/O AUXILIARY FUEL TANK) SEO/ALC AIR BAG FUSE 54 IGN FUSE 40 STOP TRAILER LAMP BRAKE SWITCH CONTROL MODULE (IF EQUIPPED) STRTR RELAY TO FAN 1 FUSE 57 (DIAGRAM WIPER CONTROL 6 OF 6) PCB RELAY FRT WPR FUSE 36 TRANS IGN 1 FUSE 19 TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ AUTO W/O 4.3L, 5.3L (VIN O), 6.0L (VIN K), 5.3L (VIN 3) W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER REAR FUEL CHMSL SPEED WASH PMP PCB PCB PCB RELAY RELAY RELAY RELAY YEL WIRE

AUTOMATIC A/C AUXILIARY GENERATOR BLK WIRE BODY BUILDER EMERGENCY LAMP DK GRN WIRE EMERGENCY VEHICLE PROVISION (BLUNT CUT) FUSE FUSE 34 FUSE FUSE FUSE SUPPLY) (BEHIND RIGHT SIDE OF DASH) FUSIBLE LINK 1 (14 GA- GENERATOR GLOW PLUG CONTROL MODULE (GPCM) HDLP HVAC LTR BATT WASH FUSE 50 FUSE 20 FUSE 36 HEATED SEAT CONTROL MODULE (IF EQUIPPED) HVAC CONTROL MODULE (ON RIGHT FRONT CORNER OF HVAC MODULE) I/P 1 ACCESSORY POWER OUTLET DATA LINK CONNECTOR (DLC) MANUAL A/C INSTRUMENT PANEL CLUSTER (IPC) INTAKE AIR HEATER (IAH) IPC TCM-BATT ECM- FUSE 43 BATT FUSE 7 FUSE 11 ITBC FUSE 19 WSW/HTR FUSE 61 LEFT BATTERY LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MEGA FUSE MOBILE RADIO FUSE BLOCK POWER SUPPLY RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY A RELAY B RIGHT BATTERY RIGHT I/P J/B (IN RIGHT END OF DASH) STARTER MOTOR STUD 2 FUSE 58 SUPPLY TO LEFT I/P J/B (DIAGRAM 4 OF 5) TO ROOF BEACON SWITCH (DIAGRAM 2 OF 5) TO STUD 1 FUSE 63 (DIAGRAM 2 OF 5) TRAILER PROVISION (BLUNT CUT) TRANSFER TRANSFER CASE SHIFT CASE CONTROL ENCODER MODULE MOTOR TREC FUSE 62 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNDERHOOD FUSE HOLDER MEGA (RIGHT SIDE FUSE OF FIREWALL) W/ ACTIVE 2 SPEED W/ DUAL GENERATOR, AMBULANCE UPFITTER SALES PACKAGE W/ ELECTRONIC 2 SPEED, ACTIVE 2 SPEED W/ EMERGENCY VEHICLE ROOF LAMP RELAY W/ WRECKER EMERGENCY LAMP PROVISIONS W/ WRECKER RELAY WHT WIRE WRECKER RELAY YEL WIRE

ABS-1 FUSE 56 ABS-2 FUSE 8 BLK WIRE BLOWER MOTOR CONTROL MODULE BRAKE CONTROL, 10 SERIES COOLED CREW CAB CREW EXTENDED CAB, CAB POWER WINDOW (W/ INDIVIDUAL FRONT SEAT) CTSY FUSE 5 DIM RT STOP BCM FUSE TRN SEATS FUSE FUSE 8 FUSE 24 DRIVER DRIVER DOOR LOCK/ WINDOW WINDOW SWITCH SWITCH DRIVER MEMORY SEAT SEAT ADJUSTER MODULE SWITCH (MSM) DRIVER SEAT 2 CIRCUIT ELEC RUN BOARD FUSE 60 ELECTRONIC BRAKE CONTROL MODULE (EBCM) EXTENDED CAB, POWER WINDOW FROM IPC FUSE 43 (DIAGRAM 1 OF 5) HEAVY DUTY ABS FUSE 55 HVAC BLWR FUSE 65 LBEC 1 FUSE 59 LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LT BLU WIRE LT DR CIRCUIT BREAKER OBS DET FUSE 20 LT GRN WIRE MBEC 1 FUSE 64 MEMORY DRIVER DOOR LOCK/ SEAT MODULE WINDOW (MSM) SWITCH OUTSIDE REARVIEW MIRROR SWITCH PASS SEAT 1 CIRCUIT PASSENGER PASSENGER SEAT SEAT LUMBAR ADJUSTER SWITCH SWITCH PASSENGER WINDOW SWITCH PWR REAR WNDW CIRCUIT PWR REAR WPR FUSE 23 MIR FUSE REAR DSM DDM HVAC FUSE FUSE FUSE REAR SEAT FUSE 1 RED WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) BODY CONTROL BODY (BCM) RIGHT I/P J/B (IN RIGHT END OF DASH) RIGHT PASSENGER REAR DOOR LOCK/ WINDOW WINDOW SWITCH SWITCH ROOF BEACON RELAY (IN OVERHEAD CONSOLE) ROOF BEACON SWITCH ROOF MOUNTED BEACON PROVISION (BLUNT CUT) RT DOORS CIRCUIT S/ROOF FUSE 31 SEAT CLIMATE CONTROL MODULE (IF EQUIPPED) SLIDING SLIDING REAR REAR WINDOW WINDOW OPEN CLOSE RELAY RELAY STUD 1 FUSE 63 SUNROOF MODULE TO LGM FUSE 66 (DIAGRAM 3 OF 5) TO PDM FUSE (DIAGRAM 3 OF 5) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ ACTIVE BRAKE W/O ACTIVE BRAKE W/ ACTIVE BRAKE, W/O 10 SERIES W/ ACTIVE BRAKE, 10 SERIES W/ ACTIVE, VACUUM POWER W/ CAMPER W/O CAMPER TRAILER TRAILER PROVISION PROVISION W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE W/ DRIVER POWER SEAT ADJUSTER W/ ELECTRICAL ALARM BULB W/ INDIVIDUAL FRONT SEAT W/ INDIVIDUAL FRONT SEAT W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ PASSENGER POWER SEAT ADJUSTER W/ REAR POWER WINDOW W/ ROOF MOUNTED PROVI- SIONS W/ SUNROOF W/ W/O INDIVIDUAL INDIVIDUAL FRONT SEAT FRONT SEAT W/ WRECKER W/ ROOF, EMERGENCY BEACON VEHICLE RELAY ROOF LAMP RELAY W/O 10 SERIES W/O INDIVIDUAL FRONT SEAT W/O INDIVIDUAL FRONT SEAT, POWER MIRROR W/O INDIVIDUAL W/ INDIVIDUAL FRONT SEAT, FRONT SEAT, POWER MIRROR POWER MIRROR WHT RED/ WIRE WHT WIRE

2 OF 5) AIR BAG BATT FUSE 42 ALC/COMP FUSE 54 AMP FUSE 38 AUDIO AMPLIFIER (PREMIUM AUDIO BRANDED W/ AMPLIFIER SPEAKER SYSTEM) AUTOMATIC A/C AUX PWR 2 FUSE 2 AUX PWR FUSE 16 BLK WIRE BODY CONTROL MODULE (BCM) CENTER CONSOLE ACCESSORY POWER OUTLET CENTER CONSOLE COMPARTMENT ACCESSORY POWER OUTLET CENTER SEAT ACCESSORY POWER OUTLET CHIME POWER TAKE OFF MODULE (PTO) RELAY CREW CAB W/ INDIVIDUAL FRONT SEAT CREW CAB/ EXTENDED CAB W/ PERFORMANCE EXHANCED AUDIO, FRONT COMPARTMENT CONSOLE DIGITAL RADIO RECEIVER (IF EQUIPPED) ESC/ALC EXH FUSE 1 FROM HEAVY ABS-2 FUSE 8 (DIAGRAM 2 OF 5) FROM LEFT I/P J/B (DIAGRAM 2 OF 5) FROM LT DR CIRCUIT BREAKER (DIAGRAM GARAGE DOOR OPENER (GDO) HVAC CONTROL MODULE I/P 2 ACCESSORY POWER OUTLET INFO FUSE 22 LBEC 2 FUSE 67 LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LGM FUSE 66 LOCK PCB UNLOCK PCB RELAY RELAY LOCK/UNLOCK PCB RELAY MANUAL A/C NCA WIRE ORG/ WIRE PASSENGER DOOR LOCK/ WINDOW SWITCH PDM FUSE 9 (W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE) PERFORMANCE ENHANCED AUDIO POWER LOCKS W/O INDIVIDUAL FRONT SEAT, POWER MIRROR POWER TAKE OFF (BLUNT CUT) PREMIUM AUDIO BRANDED W/ AMPLIFIER SPEAKER SYSTEM PTO FUSE 44 RADIO RDO FUSE 39 REAR SEAT AUDIO (RSA) CONTROL (IF EQUIPPED) RED WIRE RED/ WHT WIRE RED/BLK WIRE RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RSE FUSE 19 STOP IS LPS FUSE 17 LT STOP TRN FUSE 6 LAMPS FUSE TO BODY CONTROL MODULE (DIAGRAM 4 OF 5) TO DLIS FUSE 32 (DIAGRAM 4 OF 5) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) VIDEO DISPLAY W/ CUSTOM FRONT COMPARTMENT FLOOR CONSOLE W/ FULL FEATURE CENTER CONSOLE W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ LUXURY W/ ONSTAR W/ REAR SEAT ENTERTAIN- MENT PACKAGE W/O LUXURY W/O LUXURY, RADIO W/O RADIO W/O W/ LUXURY LUXURY WHT RED/ WIRE WHT WIRE WINDSHIELD WASHER SOLVENT HEATER (IF EQUIPPED)

6 SPEED A/T ALLISON LCT 1000 A/C CMPRSR RELAY AIR BAG IGN FUSE 37 BCK/UP LAMP PCB RELAY BLK WIRE BLUNT CUT POWER TAKE-OFF (PTO) PROVISION TRAILER BRAKE CONTROL MODULE BRN WIRE CHMSL REAR COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE, W/ LUXURY CONTROL PCB RELAY AUX HVAC- IGN FUSE 45 DRL PCB RELAY EAP FUSE 35 ECM IGN FUSE 53 ELECTRONIC, ACTIVE 2 SPEED ENGINE CONTROL MODULE (ECM) FAN FUSE 68 FAN RLY RELAY FOG LAMP RELAY FROM BODY CONTROL MODULE (DIAGRAM 4 OF 5) FROM DLIS FUSE 32 (DIAGRAM 4 OF 5) FRONT DRIVE AXLE AXLE (W/ ACTIVE 2 SPEED PUSH- BUTTON CONTROL TRANSFER CASE) FRT WASH PCB RELAY FRT WPR FUSE FUSE 33 GLOW PLUG CONTROL MODULE (GPCM) HDLP LO/HID RELAY HEATED STEERING WHEEL CONTROL MODULE HEATED STEERING WHEEL CONTROL MODULE INLINE FUSE HI BEAM PCB RELAY HORN PWR/TRN PCB RELAY RELAY HVAC-IGN FUSE 52 INFLATABLE RESTRAINT I/P MODULE ON/OFF INDICATOR (IF EQUIPPED) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL L/GATE PCB RELAY LEFT AIR TEMPERATURE ACTUATOR (AUTOMATIC A/C) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LEFT I/P J/B (LOWER LEFT SIDE OF DASH) PNK (NOT USED) WIRE MISC IGN FUSE 40 MODE ACTUATOR NCA WIRE PARK ELECTRONIC ENABLE ADJUSTABLE PCB PEDALS RELAY PCB RELAY PNK WIRE PNK/WHT WIRE POWER TAKE OFF (PTO) MODULE (IF EQUIPPED) PRK LAMP RELAY REAR VIEW SEAT CLIMATE CAMERA CONTROL MODLE REAR WIPER FUEL WASH SPEED PCB PMP DEFOG PCB PCB RELAY RELAY RELAY RELAY RELAY REARVIEW BLUNT CUT CAMERA POWER TAKE-OFF IMAGE DISPLAY (PTO) MODULE PROVISION REARVIEW CAMERA IMAGE DISPLAY MODULE RECIRCULATION ACTUATOR RED WIRE RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RUN/ CRNK RELAY SECURITY VEHICLE INDICATOR INCLINATION LAMP SENSOR SEO SEO/ALC FUSE 51 STOP LAMP SWITCH STRTR RELAY TRANS IGN 1 FUSE 13 TRANSFER CASE SHIFT CONTROL MODULE TRANSMISSION CONTROL MODULE (TCM) TRLR LT STOP/TURN PCB RELAY TRLR RT STOP/TURN PCB RELAY VEHICLE SHOCK SENSOR W/ SPO ALARM W/O 2 SPEED TRANSFER CASE W/O FRONT W/ FRONT SEAT COOLING SEAT COOLING HEATER HEATER W/O W/ STEERING STEERING WHEEL WHEEL HEATER HEATER WIPER YEL WIRE

12 2 PNK WIRE 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) EXCEPT 4.3L 4.3L 6.6L EXCEPT 6.6L 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