Chevrolet Silverado 1500 (2000-2012) ground distribution system Wiring diagrams

10 11 13 14 DATA BUS + DATA BUS - DATA BUS - DATA BUS + 14 13 15 LOW REF STP CP SW SIG 5 VOLT REF 42 26 54 22 58 38 LOW REF BRK APPLY SENS SPLY SUPPLY VOLT 6.0L APP SEN 1 SIG LOW REF APP SEN 2 SIG LOW REF VSS LO SIG VSS HI SIG PPL AUTOMATIC TRANSMISSION BATT + BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRAKE PEDAL POSITION (BPP) SENSOR BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE CONTROL IND DIMMING SIG CRUISE CONTROL SWITCH SIGNAL CRUISE IND CRUISE SWITCH DIM FUSE 7 DK BLU WIRE DK GRN WIRE ECM BATT FUSE 12 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EXCEPT 6.0L GRN WIRE GRN/WHT WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) INPUT SHAFT SPEED SENSOR (ISS) INPUT SPEED SENSOR (ISS) SIGNAL INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 46 ISS/OSS SUPPLY VOLTAGE LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT STEERING WHEEL CONTROL SWITCH ASSEMBLY LOGIC LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE OUTPUT SHAFT SPEED SENSOR (OSS) OUTPUT SPEED SENSOR (OSS) SIGNAL PNK PNK WIRE PNK TRANSMISSIONS SYSTEM COLUMN HARNESS) WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RES+ SER DATA SET- SOUND SYSTEMS TAN WIRE TAN/BLK WIRE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ 2 SPEED MANUAL TRANSFER CASE WHT WIRE WHT/BLK WIRE YEL WIRE

10 11 13 14 2500 2501 2501 2500 DATA BUS + DATA BUS - DATA BUS - DATA BUS + 6.0L APP SEN 1 SIG LOW REF APP SEN 2 SIG LOW REF VSS LO SIG VSS HI SIG AUTOMATIC TRANSMISSION BATT + BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE CONTROL IND DIMMING SIG CRUISE CONTROL SWITCH SIGNAL CRUISE IND CRUISE SWITCH DK BLU WIRE DK GRN WIRE ECM BATT FUSE 12 ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EXCEPT 6.0L GRN WIRE GRN/WHT WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH) DIM FUSE 7 HOT W/ RUN/CRNK RELAY ENERGIZED INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (BEHIND STEERING WHEEL) INPUT SHAFT SPEED SENSOR (ISS) INPUT SPEED SENSOR (ISS) SIGNAL INSTRUMENT PANEL CLUSTER (IPC) INTERIOR LIGHTS POWER SYSTEM DISTRIBUTION SYSTEM IPC FUSE 46 ISS/OSS SUPPLY VOLTAGE LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM LEFT STEERING WHEEL CONTROL SWITCH ASSEMBLY LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MISC-IGN FUSE 43 ORG/WHT WIRE OUTPUT SHAFT SPEED SENSOR (OSS) OUTPUT SPEED SENSOR (OSS) SIGNAL PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL BRAKE SW SIG PPL PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RES+ SER DATA SET- SOUND SYSTEMS STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TAN WIRE TAN/BLK WIRE TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/O TWO SPEED PUSH BUTTON, ELECTRIC SHIFT CONTROL TRANSFER CASE WHT/BLK WIRE YEL WIRE

1 2 3 4 1140 5060 B+ GMLAN COMPUTER DATA LINES SYSTEM 1 3 4 B+ SNS SIG SNS SIG 14 15 RR AJAR SW LR AJAR SW 18 24 23 HORN RLY PRL LP RLY HDLP RLY 1851 5060 COMPUTER DATA LINES SYSTEM 23 8 20 INTRUS SIG RF DR AJR SW DR KEY SW 28 45 HORNS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM 3 10 B+ GMLAN 3 8 5531 109 PPL HOOD SW SIG HOOD AJAR SW SIG 4 6 B+ GRD ACC V AUXILIARY FUSE BLOCK B+ SNS SIG SNS SIG B+ VOLT GND GMLAN BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) BRN WIRE COAX ANT COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM GMLAN DDM FUSE 4 DIM FUSE 7 BCM FUSE 15 DISTRIBUTION SYSTEM POWER DK BLU WIRE DK GRN WIRE DLIS FUSE 35 FUSE 32 DOOR AJAR INDICATOR DRIVER DOOR LOCK SWITCH DRIVER DOOR LOCK/ WINDOW SWITCH DSM FUSE 25 EXCEPT 6.6L 6.6L 6.0L (VIN J) EXCEPT 6.0L (VIN J) FUSE 52 FUSE 49 GMLAN GROUND DISTRIBUTION (ON RIGHT FRONT CORNER OF HVAC MODULE) SYSTEM GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HOOD AJAR SWITCH HOT AT ALL TIMES HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH) IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM INTERIOR LIGHTS SYSTEM RF AJAR SW KEYLESS ENTRY ANTENNA LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LF AJAR SW LOCK LOGIC LOGIC 4 6 B+ GRD LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OFF PASSENGER DOOR LOCK/ WINDOW SWITCH PDM FUSE 9 (W/ COMFORT, DECOR LEVEL 3 CONVENIENCE PACKAGE) PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL INTRUS SIG PPL SW SIG PPL/ PPL/ 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) RUN WIRE SEC IND SECURITY IND DRIVER INFORMATION CENTER (DIC) DISPLAY SECURITY INDICATOR LAMP SW SIG TAN WIRE TAN/WHT WIRE THEFT DETERRENT CONTROL MODULE (ON RIGHT SIDE OF STEERING COLUMN) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) UNLOCK VEHICLE INCLINATION SENSOR VEHICLE SHOCK SENSOR W/ INDIVIDUAL FRONT SEAT, POWER MIRROR W/ KEYLESS ENTRY, PTO W/ REMOTE KEYLESS ENTRY, PTO YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 AIR TMP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 B(+) A/C ON AIR TEMP RF SUNLD AMB AIR TMP GMLAN L AMBIENT AIR TEMPERATURE SENSOR (ON LEFT SIDE OF RADIATOR SUPPORT) AMBIENT LIGHT/SUNLOAD SENSOR ASSEMBLY (TOP CENTER OF DASH) AUTO BATT POS VOLT BLK WIRE BLK/WHT WIRE BREAKOUT) BRN WIRE COLNT LVL GROUND LOW REF COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ENGINE COOLANT LEVEL SWITCH (6.6L) (ON BOTTOM OF SURGE TANK) EVAPORATOR TEMPERATURE SENSOR (ON HVAC ASSEMBLY) FAN DN FAN UP FRESH AIR FRNT DFG FRT DEF A/C IND FSH AIR GROUND GROUND DISTRIBUTION SYSTEM GROUND IGN 3 REAR DEFOG GRY WIRE GRY/BLK WIRE HVAC CONTROL MODULE INSTRUMENT PANEL CLUSTER (IPC) DRIVER INFORMATION CENTER (DIC) DISPLAY LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LEFT SUNLOAD SENSOR LEFT TEMP CONTROL LF SUNLD L AIR TMP R AIR TMP LOGIC LOW REF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MODE DN MODE UP MTR SPD CTRL OFF ORG/ WIRE POWER DISTRIBUTION SYSTEM DEFOGGER SYSTEM PPL PPL/WHT WIRE R AIR TMP AIR TMP R AIR TMP TEMP SENS MODE CTRL L AIR TMP RECIR CTRL R AIR TMP REAR DFG RECIR RECIRC RED WIRE RED/WHT WIRE RER DEF RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) RIGHT SUNLOAD SENSOR RIGHT TEMP CONTROL SERIAL DATA TAN WIRE UPPER LEFT AIR TEMPERATURE SENSOR (UNDER UPPER LEFT SIDE OF DASH) UPPER RIGHT AIR TEMPERATURE SENSOR (UNDER UPPER RIGHT SIDE OF DASH) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BATTERY BATTERY CABLE JUNCTION BLOCK BATTERY NOT CHARGING BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE INDICATOR CONTROL CLASS 2 SERIAL DATA COMPUTER DATA LINES DK BLU WIRE DK GRN WIRE EARLY PRODUCTION ENGINE ON SIGNAL FUSIBLE LINK (8 GA- GENERATOR GENERATOR FIELD DUTY CYCLE CONTROL GENERATOR BATTERY CONTROL MODULE GENERATOR FIELD DUTY CYCLE SIGNAL GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN RUN, START I/P RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) IGN 1 VOLT IGN E FUSE INSTRUMENT PANEL CLUSTER IPC CLASS 2 SERIAL DATA LEFT BATTERY LOGIC MASSAGE CENTER ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (AT LEFT FRONT OF ENG COMPT) PPL GENERATOR REGULATOR CONTROL PUR RED/WHT WIRE RVC FUSE SUPPLEMENTAL BRAKE ASSIST PUMP MOTOR (MOUNTED TO POWER BRAKE BOOSTER) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT, NEAR BATTERY) UPFITTER OPTION VOLTS W/ BRAKE VAC POWER

ANL/DRL DEFEAT AUTO BATTERY BATTERY BATTERY BATTERY GROUND BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) CREW CAB ONLY FUSE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HEAD PARK HEADLAMP SWITCH HOT AT ALL TIMES HOT IN ACC, RUN HOT IN ACC, RUN, START HOT IN RUN, START I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGNITION KEY ALARM SWITCH LEFT REAR DOOR LATCH ASSEMBLY LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PARK BRAKE SWITCH (PART OF PARK BRAKE ASSEMBLY) PARK LAMP ON SIGNAL GROUND DIMMING INPUT PNK WIRE POWER DISTRIBUTION SYSTEM RIGHT REAR DOOR AJAR SW LEFT REAR DOOR AJAR SW RIGHT REAR DOOR LATCH ASSEMBLY SERIAL DATA TAN WIRE TBC ACCY FUSE TBC BATT FUSE TBC IGN 0 FUSE TBC IGN 1 FUSE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPARTMENT) WHT WIRE YEL WIRE

22 3 11 SERIAL DATA LEFT SEAT BELT LOW REFERENCE 22 3 18 SERIAL DATA LOW REFERENCE LEFT DOOR AJAR SW 22 5 20 SERIAL DATA DOOR AJAR SWITCH LOW REFERENCE BASE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER SEAT BELT SWITCH FRONT PASSENGER DOOR LATCH ASSEMBLY FRONT PASSENGER DOOR MODULE (FPDM) (IN RIGHT FRONT DOOR) GASOLINE DIESEL GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) I/P JUNCTION BLOCK (RIGHT SIDE OF DASH, BEHIND ACCESS PANEL) IGN INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER LEFT FRONT SEAT) INSTRUMENT PANEL CLUSTER (IPC) LEFT TURN LOGIC LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK 1045 1044 WIRE PPL PPL 1132 1036 1037 1047 1046 RADIO RIGHT TURN SEAT BELT SERIAL DATA SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE W/CONVENIENCE PACKAGE COMFORT, DECOR LEVEL 3 W/MEMORY SEATS WHT WIRE YEL WIRE

2 OR MORE OF W/ ONSTAR, AUDIO AMPLIFIER (IF EQUIPPED) (UNDER REAR OF CENTER CONSOLE) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER LEFT SIDE OF DASH) CHIME MODULE (CENTER OF DASH, BEHIND RADIO) DATA LINK CONNECTOR (DLC) (LOWER LEFT SIDE OF DASH) DIGITAL RADIO RECEIVER (BEHIND RIGHT END OF DASH) DIGITAL RADIO RECEIVER (IF EQUIPPED) (BEHIND RIGHT END OF DASH) DIGITAL RADIO, REAR SEAT, DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH (IF EQUIPPED) DRIVER'S SEAT EARPHONE JACKS RADIO CONTROL GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK (LEFT SIDE OF DASH, INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER INSTRUMENT PANEL CLUSTER (IPC) LEFT I/P JUNCTION BLOCK (LOWER LEFT SIDE OF DASH) LO-SPEED SERIAL DATA LOW SPEED GMLAN SERIAL DATA LTR FUSE 53 (EXCEPT 6.6L) FUSE 50 (6.6L) PASSENGER DOOR LOCK/WINDOW SWITCH (IF EQUIPPED) POWER DISTRIBUTION SYSTEM RADIO REAR OBJECT SENSOR CONTROL MODULE (AT REAR CARGO AREA, BEHIND TRIM PANEL) REAR SEAT AUDIO (RSA) CONTROL REAR SEAT AUDIO (RSA) CONTROL (IF EQUIPPED) RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (TOP REAR OF PASSENGER COMPT) RIGHT I/P JUNCTION BLOCK (IN RIGHT END OF DASH) TAN WIRE TAN/BLK WIRE THEFT DETERRENT CONTROL MODULE (ON RIGHT SIDE OF STEERING COLUMN) UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (BEHIND CENTER OF DASH) W/ DIGITAL RADIO W/ DIGITAL RADIO, REAR SEAT, ONSTAR, EARPHONE JACKS RADIO CONTROL W/ LUXURY EDITION W/ ONSTAR W/ RADIO PROVISIONS W/ REAR SEAT, EARPHONE JACKS RADIO CONTROL W/O LUXURY EDITION W/O RADIO PROVISIONS WHT WIRE

120 VAC EXTERIOR AUXILIARY POWER OUTLET 120 VAC INTERIOR AUXILIARY POWER OUTLET BARE BLK WIRE CRANK FUSE DK GRN WIRE EHPS FUSE ELECTRO HYDRAULIC POWER STEERING MODULE ENERGY STORAGE BOX (ESB) GRN WIRE GROUND DISTRIBUTION SYSTEM HARN) HOT AT ALL TIMES HOT IN ACC RUN AND START I/P FUSE BLOCK IGN A FUSE 34 IGN B FUSE IGNITION SWITCH LOCK NCA WIRE ORG/ WIRE PARK/ NEUTRAL POSITION (PNP) SWITCH (ON LEFT SIDE OF TRANSMISSION) PICKUP BOX INNER PANEL ASSEMBLY PNK 1 2 3 WIRE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION CIRCUIT POWER MAINT FUSE PPL PPL 13 14 15 PPL 5 6 7 8 PPL/WHT WIRE PWR MAINT RELAY RED WIRE RUN WIRE UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENG COMPT) UNDERHOOD SECONDARY FUSE BLOCK (LEFT SIDE OF ENG COMPT, REAR OF BATTERY) WHT WIRE YEL WIRE YEL/BLK WIRE

2 3 4 GMLAN 3 10 B+ GMLAN 4 6 B+ GND SWITCH 5060 262 5942 5925 5927 COMPUTER DATA LINES SYSTEM 5060 5946 1663 COMPUTER DATA LINES SYSTEM 7 9 LCK CNTRL UNLCK CNTRL 9 4 5 7 8 GMLAN SW SIG LOW REF LCK CNTRL UNLCK CNTRL 9 7 8 GMLAN LOCK CNTRL UNLCK CNTRL 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/ WINDOW SWITCH DRIVER INFORMATION CENTER (DIC) DISPLAY DSM FUSE 25 GMLAN 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 PASSENGER DOOR LATCH ASSEMBLY (REAR OF PASSENGER'S DOOR) 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 TAN WIRE UNLCK 1 FUSE 18 UNLOCK DOOR LOCK UNLOCK DOOR LOCK SWITCH 4 6 B+ GND WHT WIRE YEL WIRE