Chevrolet Cab & Chassis Silverado 3500 (2004-2007) recirc door ctrl a/c clu rly ctrl Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 GROUND EGR SOL CTRL 12 V REF GROUND LOW REF FUEL PRES REG 5 VOLT REF A/C SYSTEM A/C SYSTEM (BLUNT CUT) A/C SYSTEM A/C SYSTEM ANTI-LOCK BRAKES SYSTEM BARO SENS SIG MAF SENS SIG BLK/WHT WIRE BODY RELAY BLOCK BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE EGR THROTTLE VALVE VACUUM CONTROL SOLENOID EGR VALVE VACUUM CONTROL SOLENOID EGR VACUUM VENT SOLENOID ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE SPEED SIG SOL CTRL LOW REF EXC SEO EXTERIOR LIGHTS SYSTEM TRANSMISSIONS SYSTEM FUEL LEV SENS SIG FUEL RAIL PRESSURE REGULATOR (ON FUEL RAIL) FUEL TEMPERATURE SENSOR FUSE GLOW RLY CTRL GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN LEFT I/P FUSE BLOCK BRAKE FUSE HOT IN RUN, START IA HTR DIAG 2 IND CTRL PTO ENGAGE SIG PPL INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER SYSTEM (FUEL LEVEL) INSTRUMENT PANEL CLUSTER IPC/DIC FUSE LOW REF APP SENS 1 SIG FUEL TEMP SIG LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK IGN 1 VOLT WIRE PNK PNK 14 15 WIRE PNK WIRE PPL PPL/WHT WIRE RECIRC DOOR CTRL A/C CLU RLY CTRL RED WIRE SEO STARTING/CHARGING SYSTEM STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK VEHICLE SPEED SENSOR (LEFT SIDE OF TRANS) WAIT TO MIL RPM OUT WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 GROUND 12 V REF GROUND LOW REF FUEL PRES REG 5 VOLT REF A/C SYSTEM A/C SYSTEM (BLUNT CUT) A/C SYSTEM A/C SYSTEM ANTI-LOCK BRAKES SYSTEM BARO SENS SIG MAF SENS SIG BLK/WHT WIRE BODY RELAY BLOCK BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (TOP OF PEDAL BRACKET) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE SPEED SIG SOL CTRL LOW REF EXC SEO EXTERIOR LIGHTS SYSTEM TRANSMISSIONS SYSTEM FUEL LEV SENS SIG FUEL RAIL PRESSURE REGULATOR (ON FUEL RAIL) FUEL TEMPERATURE SENSOR FUSE GLOW RLY CTRL GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN LEFT I/P FUSE BLOCK BRAKE FUSE HOT IN RUN, START IA HTR DIAG 2 IND CTRL PTO ENGAGE SIG PPL INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER SYSTEM (FUEL LEVEL) INSTRUMENT PANEL CLUSTER IPC/DIC FUSE LOW REF APP SENS 1 SIG FUEL TEMP SIG LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MIL CTRL ORG/ WIRE ORG/BLK WIRE PNK IGN 1 VOLT WIRE PNK WIRE PPL PPL/WHT WIRE RECIRC DOOR CTRL A/C CLU RLY CTRL RED WIRE SEO STARTING/CHARGING SYSTEM STOP LAMP SWITCH (TOP OF BRAKE PEDAL BRACKET) TAN WIRE TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK VEHICLE SPEED SENSOR (LEFT SIDE OF TRANS) WAIT TO MIL RPM OUT WHT WIRE YEL WIRE YEL/BLK WIRE