GMC Sierra 2500 HD (2002-2012) brn Wiring diagrams

2-HI IND 4-HI IND 4-LO IND 5 VOLT REF INCRMT ENCODER SIG 7475 7476 1693 1566 1565 PPL ACCY WAKEUP SRL DATA ASSEMBLY AUX HVAC-IGN FUSE 48 FUSE 45 AXLE ACTR CTRL AXLE SW SIG GMLAN BUS - GMLAN BUS + IGN 1 VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DIRTN SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE FRONT AXLE ACTUATOR FUSE 19 FUSE 13 GAS GAS DIESEL GMLAN BUS - GMLAN BUS + INCRMT ENCODER SIG GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY ENERGIZED HOT W/ RUN/CRNK RELAY ENERGIZED UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) IGN INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LO REF SW SIG 4 HI IND CTRL 4 LO IND CTRL LOGIC LOW REF LT BLU WIRE LT GRN/BLK WIRE LT GRN/DK BLU WIRE MISC IGN FUSE 43 FUSE 40 MTR CTRL B MTR CTRL A BATT + GND NEUTRAL IND NEUTRAL IND CTRL 2 HI IND CTRL ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE PULSE SIG RED/BLK WIRE SER DATA SHIFT MOTOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSFER CASE ENCODER MOTOR (ON TRANSFER CASE) TRANSFER CASE SHIFT CONTROL MODULE (LOWER LEFT SIDE OF DASH) TRANSFER CASE SHIFT CONTROL SWITCH (ON TOP LEFT OF TRANSFER CASE) TREC FUSE 67 FUSE 62 WHT WIRE WHT/GRN WIRE YEL WIRE

2-HI IND 4 HI 4 LO 4 SPEED TRANSMISSION 4-HI IND 4-LO IND 4.3L 5 VOLT INCRMT ENCODER SIG 6 SPEED TRANSMISSION (ALLISON) ACCY WAKEUP SRL DATA AUX HVAC-IGN FUSE 50 AXLE ACTR CTRL AXLE SW SIG GMLAN BUS - GMLAN BUS + IGN VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM CTRL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENG COMPT, NEAR FAN SHROUD) FRONT AXLE ACTUATOR (ON FRONT AXLE ASSEMBLY) (TOP LEFT REAR OF ENG) FUSE 30 GMLAN BUS - GMLAN BUS + INCRMT ENCODER SIG GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ACC AND RUN HOT IN RUN OR START HOT W/ RUN/CRNK RELAY ENERGIZED IGN INSTRUMENT PANEL CLUSTER LAMP LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LT BLU WIRE LT GRN/BLK WIRE LT GRN/DK BLU WIRE MISC IGN FUSE 44 MTR CTRL B MTR CTRL A BATT + GND NEUT NEUTRAL IND NEUTRAL IND 2 HI IND CTRL ORG/ WIRE OUTSIDE MOISTURE SENSOR (NEAR INSIDE REAR VIEW MIRROR) PNK WIRE PPL PPL LO REF SW SIG 4 HI IND CTRL 4 LO IND CTRL PPL/WHT WIRE RED/BLK WIRE RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) SHIFT MOTOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSFER CASE ENCODER MOTOR (ON TRANSFER CASE) TRANSFER CASE SHIFT CONTROL MODULE (LOWER LEFT SIDE OF DASH) TRANSFER CASE SHIFT CONTROL SWITCH TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENG COMPT, NEAR FAN SHROUD) TREC FUSE 69 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ OUTSIDE MOISTURE SENSOR W/O OUTSIDE MOISTURE SENSOR WHT WIRE WHT/GRN WIRE WHT/TAN WIRE YEL WIRE

38 8 57 44 GEN SIG CHG SIG DATA BS DATA BS BRN WIRE CHARGE COMPUTER DATA LINES SYSTEM DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) LEFT GENERATOR LOGIC MEGA FUSE RED/BLK WIRE RIGHT GENERATOR TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT)

10 9 8 SNS GRD SNS SIG 16 17 DATA BS DATA BS 28 27 43 44 DATA BS DATA BS 32 61 43 31 GEN SIG CHG IND BATTERY CURRENT SENSOR (W/ 1500) BODY CONTROL MODULE (BCM) BRN WIRE CHARGE COMPUTER DATA LINES SYSTEM DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) GENERATOR GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 48 LOGIC PNK WIRE POWER DISTRIBUTION SYSTEM RED/BLK WIRE RED/WHT WIRE SNS GRD SNS SIG TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/O 4.3L W/ 4.3L WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 L AUD+ R AUD+ 1 2 3 4 B+ LF SPK+ RF SPK+ VOICE SIG/ ANTENNA AUD SIG AUDIO W/ DVD NAVIGATION BLK WIRE BLUNT CUT) BLUTOOTH WIRELESS CO- MMUNICATION INTERFACE ANTENNA (IF EQUIPPED) BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (IN OVERHEAD CONSOLE) CELLULAR/ NAVIGATION ANTENNA CELLULAR/ NAVIGATION, DIGITAL RADIO RADIO ANTENNA CELLULAR/NAVIGATION, DIGITAL RADIO ANTENNA (LEFT FRONT OF ROOF) COAX COAX COAX COMPUTER DATA LINES SYSTEM DIGITAL AUDIO SYSTEM W/ S-BAND, TRAFFIC DIGITAL AUDIO SYSTEM DIGITAL RADIO RECEIVER (BEHIND RIGHT END OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GAS DIESEL W/O ONSTAR W/ ONSTAR W/O S-BAND, TRAFFIC GMLAN GREEN LED GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFO FUSE 22 KEYPAD SIG L AUD - R AUD - DRAIN WIRE LED CNTRL GND LF SPK- RF SPK- LOW REF LOW REF/ DRAIN WIRE 6 7 8 9 10 11 12 13 14 LR AUD + RR AUD + VOICE SIG LR AUD - RR AUD - LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE PNK/BLK WIRE RADIO RDO FUSE 42 FUSE 39 RED LED WIRE RED/WHT WIRE SUPPLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TELE SIG UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) USB CABLE USB CABLE USB RECEPTACLE (IF EQUIPPED) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) VOICE SIG W/ ODOMETER SECURITY (SEO) WIRING PROVISION W/ ON STAR YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFRARED REF INFRARED V INSIDE REARVIEW MIRROR (ISRVM) L INFRARED LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK WIRE PPL/WHT WIRE R INFRARED REAR SEAT AUDIO (RSA) CONTROL RED/WHT WIRE RIGHT I/P J/B (IN RIGHT END OF DASH) RSE FUSE 19 TAN WIRE W/ REAR SEAT ENTERTAINMENT PACKAGE W/ S-BAND DIGITAL AUDIO SYSTEM/VEHICLE COMMUNICATION SYSTEM YEL WIRE YEL/BLK WIRE

17 6 PNK 12 VOLT SW SIG WIRE 2500 2501 COMPUTER DATA LINES 8 9 DATA BUS (+) DATA BUS (-) ANTI-LOCK BRAKES AUD LOW REF AUDIO/VIDEO ADAPTER AUX VID H BLK WIRE BLUNT CUT) BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CREW CAB CREW CAB EXTENDED CAB CRUISE CONTROL SYSTEM W/O AUTOMATIC CRUISE CONTROL W/ AUTOMATIC CRUISE CONTROL CUT) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DVD DVD COMM ENABLE SIG EXTENDED CAB GRY WIRE GRY/DK BLU WIRE GRY/ORG WIRE I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFRARED TRANSMITTER L AUD SIG L AUX AUDIO L DVD+ LEFT FRONT SPEAKER LEFT REAR SPEAKER LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE R AUD SIG R AUX AUDIO R DVD+ RADIO RED/WHT WIRE RIGHT FRONT SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT REAR SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH SHIELD SIGNAL SOURCE SEEK SYSTEM SYSTEM 7641 7642 NAVIGATION SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE VIDEO CNTRL VIDEO DISPLAY VIDEO SIG VOICE REC VOLT VOLUME NEXT VOLUME PREVIOUS DOWN UP VSS VIDEO SIG (+) VIDEO SIG (-) W/ AUTOMATIC CRUISE CONTROL/ ACCESSORY STEERING WHEEL HEATER W/ DUAL EXTENDED RANGE QUARTER MOUNTED, DUAL FRONT DOOR MOUNTED 4 SPEAKER SYSTEM W/ PERFORMANCE ENHANCED AUDIO WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 L AUD + R AUD + DRAIN WIRE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 L AUD- L AUD+ R AUD+ R AUD- GMLAN 1 2 3 4 B+ LF AUD+ RF AUD+ VOICE SIG/ TELE SIG LOW REF/ AMP FUSE 41 FUSE 38 ANTENNA AUD SIG AUDIO W/ DVD NAVIGATION BLK WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (IN OVERHEAD CONSOLE) CELLULAR/ NAVIGATION ANTENNA CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA CELLULAR/NAVIGATION, DIGITAL RADIO ANTENNA (LEFT FRONT OF ROOF) COAX COMPUTER DATA LINES SYSTEM DIGITAL AUDIO SYSTEM DIGITAL RADIO RECEIVER (IF EQUIPPED) (BEHIND RIGHT END OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DRAIN WIRE 6 7 8 9 10 11 12 13 14 REM SIG LED CNTRL GAS DIESEL W/O ONSTAR W/ ONSTAR W/O S-BAND, TRAFFIC GMLAN GND LF AUD- RF AUD- DRAIN WIRE GREEN LED GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFO FUSE 22 KEYPAD SIG LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LOW REF LR AUD - RR AUD - LOW REF LR AUD+ RR AUD+ VOICE SIG AMPL CNTRL L AUD- R AUD- DRAIN WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE RADIO RDO FUSE 42 FUSE 39 RED LED WIRE RED/WHT WIRE SUPPLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) USB CABLE USB CABLE USB RECEPTACLE (IF EQUIPPED) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) VOICE SIG W/ ODOMETER SECURITY (SEO) WIRING PROVISION W/ ON STAR W/ S-BAND, TRAFFIC DIGITAL AUDIO SYSTEM WHT WIRE YEL WIRE YEL/BLK WIRE

AMPL CNTRL BLK WIRE BLUNT CUT) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GMLAN GRD GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFRARED REF INFRARED V INSIDE REARVIEW MIRROR (ISRVM) L INFRARED L SUBWFR - LEFT I/P J/B (LOWER LEFT SIDE OF DASH) LF AUD + LF SPK - LR AUD + LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PPL/WHT WIRE R INFRARED R SUBWFR + REAR SEAT AUDIO (RSA) CONTROL RED/WHT WIRE REM ENABLE RF AUD + RF SPK - RIGHT I/P J/B (IN RIGHT END OF DASH) RR AUD - RSE FUSE 19 SUBWOOFER SPEAKER TAN WIRE W/ REAR SEAT ENTERTAINMENT PACKAGE WHT WIRE YEL WIRE YEL/BLK WIRE

17 6 PNK 12 VOLT SW SIG WIRE 2500 2501 COMPUTER DATA LINES 8 9 DATA BUS (+) DATA BUS (-) ANTI-LOCK BRAKES SYSTEM 7641 7642 NAVIGATION SYSTEM AUD LOW REF AUDIO/VIDEO ADAPTER AUX VID H BLK WIRE BLUNT CUT) BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CREW CAB CRUISE CONTROL SYSTEM CUT) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE DVD DVD COMM ENABLE SIG EXTENDED CAB GRY WIRE GRY/DK BLU WIRE GRY/ORG WIRE I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFRARED TRANSMITTER L AUD SIG L AUX AUDIO L DVD+ LEFT FRONT SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR SPEAKER LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE PREVIOUS SOURCE SEEK R AUD SIG R AUX AUDIO R DVD+ RADIO RED/WHT WIRE RIGHT FRONT SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT REAR SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH SHIELD SIGNAL SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM VIDEO CNTRL VIDEO DISPLAY VIDEO SIG VOICE VOLUME REC DOWN VOLT VOLUME NEXT UP VSS VIDEO SIG (+) VIDEO SIG (-) W/ AUTOMATIC CRUISE CONTROL/ ACCESSORY STEERING WHEEL CONTROL W/O AUTOMATIC CRUISE CONTROL W/ AUTOMATIC CRUISE CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE