Chevrolet Silverado 1500 (2000-2012) org/blk Wiring diagrams

6.6L EXCEPT 6.6L, 4.3L 4.3L AUTOMATIC A/C MANUAL A/C BLK WIRE BLK/WHT WIRE COLNT LVL COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE COOLANT LEVEL SWITCH (6.6L) (ON BOTTOM OF SURGE TANK) EXCEPT 6.6L, 6.0L (VIN K) FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE LEFT COOLING FAN (LEFT FRONT OF ENGINE COMPT) LOGIC LT BLU WIRE LT GRN WIRE ORG/BLK WIRE PWR/ TRN RELAY RIGHT COOLING FAN (RIGHT FRONT OF ENGINE COMPT) TAN WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

13 34 12 59 58 17 27 28 8 65 25 13 5 49 44 43 LOW REF 22 21 4 58 LOW REF ECT SENS SIG 4.8L, 5.3L, 6.2L 4.3L BLK WIRE COMPUTER DATA LINES SYSTEM COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE HOT AT ALL TIMES LEFT COOLING FAN (LEFT FRONT OF ENGINE COMPT) LT BLU WIRE ORG/BLK WIRE PWR/ TRN RELAY RIGHT COOLING FAN (RIGHT FRONT OF ENGINE COMPT) SENS SIG PWRTRN RLY CTRL FAN RLY CTRL FAN RLY CTRL DATA BUS (-) DATA BUS (+) TAN WIRE TAN/BLK WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

13 26 12 40 13 34 12 59 58 17 27 28 8 65 25 13 5 49 44 43 LOW REF 22 21 4 58 LOW REF ECT SENS SIG 4.3L 6.0L 4.8L, 5.3L, 6.2L BLK WIRE COMPUTER DATA LINES SYSTEM COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE HOT AT ALL TIMES LEFT COOLING FAN (LEFT FRONT OF ENGINE COMPT) LT BLU WIRE ORG/BLK WIRE PWR/ TRN RELAY RIGHT COOLING FAN (RIGHT FRONT OF ENGINE COMPT) SENS SIG PWRTRN RLY CTRL FAN RLY CTRL FAN RLY CTRL DATA BUS (-) DATA BUS (+) TAN WIRE TAN/BLK WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

6.6L EXCEPT 6.6L, 4.3L 4.3L AUTOMATIC A/C MANUAL A/C BLK WIRE BLK/WHT WIRE COLNT LVL COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE COOLANT LEVEL SWITCH (6.6L) (ON BOTTOM OF SURGE TANK) EXCEPT 6.6L, 6.0L (VIN K) FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE LEFT COOLING FAN (LEFT FRONT OF ENGINE COMPT) LOGIC LT BLU WIRE LT GRN WIRE ORG/BLK WIRE PWR/ TRN RELAY RIGHT COOLING FAN (RIGHT FRONT OF ENGINE COMPT) TAN WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

6.6L EXCEPT 6.6L, 4.3L 4.3L AUTOMATIC A/C MANUAL A/C BLK WIRE BLK/WHT WIRE COLNT LVL COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE COOLANT LEVEL SWITCH (6.6L) (ON BOTTOM OF SURGE TANK) EXCEPT 6.6L, 6.0L (VIN K) FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE LEFT COOLING FAN (LEFT FRONT OF ENGINE COMPT) LOGIC LT BLU WIRE LT GRN WIRE ORG/BLK WIRE PWR/ TRN RELAY RIGHT COOLING FAN (RIGHT FRONT OF ENGINE COMPT) TAN WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

6.6L EXCEPT 6.6L, 4.3L 4.3L AUTOMATIC A/C MANUAL A/C BLK WIRE BLK/WHT WIRE COLNT LVL COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) ENGINE COOLANT LEVEL SWITCH (6.6L) (ON BOTTOM OF SURGE TANK) EXCEPT 6.6L, 6.0L (VIN K) FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE LEFT COOLING FAN (LEFT FRONT OF ENGINE COMPT) LOGIC LT BLU WIRE LT GRN WIRE ORG/BLK WIRE PWR/ TRN RELAY RIGHT COOLING FAN (RIGHT FRONT OF ENGINE COMPT) TAN WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

13 34 12 59 58 17 27 28 8 65 25 13 5 49 44 43 LOW REF 22 21 4 58 LOW REF ECT SENS SIG 4.8L, 5.3L, 6.2L 4.3L BLK WIRE COMPUTER DATA LINES SYSTEM COOLING FAN DIODE 1 COOLING FAN DIODE 2 DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) FAN CNTRL RELAY FAN HI RELAY FAN LO RELAY FAN-1 FUSE 60 FAN-2 FUSE 62 GRY WIRE HOT AT ALL TIMES LEFT COOLING FAN (LEFT FRONT OF ENGINE COMPT) LT BLU WIRE ORG/BLK WIRE PWR/ TRN RELAY RIGHT COOLING FAN (RIGHT FRONT OF ENGINE COMPT) SENS SIG PWRTRN RLY CTRL FAN RLY CTRL FAN RLY CTRL DATA BUS (-) DATA BUS (+) TAN WIRE TAN/BLK WIRE UNDER- HOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) YEL WIRE

A/C CL CTRL A/C PRESS SIG LO REF AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM AXL SW SIG BANK 1 SENSOR 2 (DOWNSTREAM OF LEFT CATALYTIC CONVERTER) BANK 2 SENSOR 2 (DOWNSTREAM OF RIGHT CATALYTIC CONVERTER) BLK/WHT WIRE BRK SW SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM COOLING FANS SYSTEM COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) FRONT FUEL PUMP, SENDER ASSEMBLY (IN FRONT FUEL TANK) FUEL CTRL FUEL TANK PRESSURE (FTP) SENSOR (ON FUEL PUMP, SENDER ASSEMBLY) GMLAN - GMLAN + GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEATED OXYGEN IAT SIG LO REF LO REF LO REF LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MAF SIG MIL IND PPL NCA WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE PNK/BLK WIRE PPL PPL FUEL LVL-PRI CFAN HI CTRL ACC SER DATA PPL LO REF FTP SIG PPL/WHT WIRE PWTN RLY CTRL RED/WHT WIRE STARTING/ CHARGING SYSTEM STRT RLY CTRL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TOS SIG OR VSS HI SIG VSS LO SIG GND 71 72 73 TRANSMISSIONS SYSTEM VSS CFAN LO CTRL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT ACTUATOR SOLENOID DK BLU WIRE DK BLU/WHT WIRE ECM BATT FUSE 12 ECM/THROT CONT FUSE 5 ENG FUSE 4 FUEL INJECTORS (TOP OF LEFT CYLINDER BANK) FUEL INJECTORS (TOP OF RIGHT CYLINDER BANK) FUSE (DIAGRAM 4 OF 6) HOT AT ALL TIMES IAT INJ-A FUSE 24 INJ-B FUSE 13 LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE MAF ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL PNK PNK WIRE PWR/ TRN RELAY RED/WHT WIRE SNSR FUSE 8 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCM- BATT FUSE 14 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AUX HVAC-IGN FUSE 48 BANK 2 SENSOR 1 (UPSTREAM OF RIGHT CATALYTIC CONVERTER) BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (FRONT OF ENGINE, ABOVE CRANK PULLEY) COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION SENSOR (RIGHT REAR OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON TOP OF ENGINE) ENGINE OIL PRESSURE IND FROM INJ-B FUSE (DIAGRAM 3 OF 6) GRY WIRE GRY/BLK WIRE GRY/WHT PNK WIRE GRY/WHT WIRE HEATED OXYGEN HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) IPC FUSE 46 HOT W/ RUN/CRNK RELAY ENERGIZED IGN 1 GND IGN B+ MALFUNCTION INDICATOR LAMP INSTRUMENT PANEL CLUSTER (IPC) KNOCK SENSOR (KS) 1 (LOWER LEFT SIDE OF ENGINE) KNOCK SENSOR (KS) 2 (LOWER RIGHT SIDE OF ENGINE) LO BUS LOGIC LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (ON TOP OF INTAKE MANIFOLD) NCA WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL PNK PNK WIRE PPL/WHT WIRE RED/WHT WIRE SNSR FUSE 18 TAN PPL/WHT WIRE TAN WIRE TAN/WHT WIRE W/ BASE BODY OR CHASSIS BODY EQUIPMENT W/O BASE BODY OR CHASSIS BODY EQUIPMENT WHT/BLK WIRE YEL WIRE YEL/BLK WIRE