Chevrolet Chevy Express G2500 (1996-2012) org/blk Wiring diagrams

3-2 SHIFT SOL LOW REF 9 10 11 PPL BATTERY PPL BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (PART OF DISTRIBUTOR, REAR TOP OF ENGINE) CKP SENS DK BLU WIRE ECM-B FUSE ENG 1 FUSE ENGINE COOLANT TEMPERATURE SENSOR (ON TOP FRONT OF ENGINE) GROUND EGR GND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INJ 1 INJ 3 INJ 4 INJ 5 KS SIG LOW REF LOW REF LOW REF LOW REF LOW REF EGR VALVE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK 20 21 22 23 24 25 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER) PPL PPL PNK WIRE PPL PPL PPL/WHT WIRE RED WIRE SOLID STATE TAN WIRE TAN/WHT WIRE TRANS PRES B TRANS PRES C IGN 1 BATTERY LOW REF TRANS SW A TCC BK SW TRANS SW P PPL TRANS SW B CMP SENSOR ECT SENSOR OFF/RUN/CRK INJ 2 INJ 6 UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK WIRE 2-3 SHIFT SOLENOID 1-2 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH 4-SPEED TRANS. ONLY 9 10 11 PPL AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE DK BLU WIRE ECM 1 FUSE EXHAUST GAS RECIRCULATION VALVE (TOP FRONT OF ENGINE) FLUID TEMP SENSOR GROUND FLUID TEMP SENSOR SIGNAL IGNITION PRESSURE CONTROL SOLENOID VALVE FUEL INJ 1 FUEL INJ 2 FUEL INJ 3 FUEL INJ 4 FUEL INJ 5 FUEL INJ 6 GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT PNK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK LT WIRE PNK PNK 20 21 22 23 24 25 WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC PCM SOLENOID VALVE TCC SOLENOID VLAVE TCC/BRAKE SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS.) UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK WIRE 21 22 PPL 24 25 26 PNK WIRE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUEL LVL INPUT FUEL PUMP RELAY FUEL PUMP, SENDER (IN FUEL TANK UNDER REAR OF VEHICLE) SIG OUT SIG IN FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GAUGES FUSE 4 GRN WIRE GRY WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK AIR FUSE HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK INPUT INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP (MIL) "SERVICE ENGINE SOON" MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP RIGHT SIDE OF ENGINE) MASS AIRFLOW SENSOR (PART OF AIR INTAKE DUCT, TOP FRONT OF ENGINE) ODOMETER SPEEDOMETER/ ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION SWITCH PNK PNK WIRE PNK WIRE PPL PPL SECONDARY AIR INJECTION REACTION SOLENOID RED WIRE RED/BLK WIRE SECONDARY AIR INJECTION REACTION PUMP CLUTCH SECONDARY AIR INJECTION REACTION PUMP RELAY TAN WIRE TAN/BLK WIRE THROTTLE POSITION SENSOR (ON LEFT SIDE OF THROTTLE BODY) TRANS FUSE 20 UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

10 11 12 PPL 3-2 SHIFT SOL LOW REF BATTERY PPL PPL BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (PART OF DISTRIBUTOR, REAR TOP OF ENGINE) CKP SENS COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE ECM-B FUSE ENG 1 FUSE ENGINE COOLANT TEMPERATURE SENSOR (ON TOP FRONT OF ENGINE) GROUND EGR GND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INJ 1 INJ 6 INJ 4 INJ 7 INJ. #2 INJ. #3 KNOCK SENSOR (ON RIGHT SIDE OF ENGINE) KS #1 LOW REF LOW REF LOW REF LOW REF LOW REF EGR VALVE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER) PPL PPL PNK WIRE PPL PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE SOLID STATE TAN WIRE TAN/WHT WIRE TRANS PRES B TRANS PRES C IGN 1 BATTERY LOW REF TRANS SW A TCC BK SW TRANS SW P PPL TRANS SW B CMP SENSOR ECT SENSOR OFF/RUN/CRK INJ 5 INJ 8 UNDERHOOD FUSE BLOCK W/ W/ WHT WIRE YEL WIRE YEL/BLK WIRE

10 11 12 PPL 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK WIRE 2-3 SHIFT SOLENOID 1-2 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH 4-SPEED TRANS. ONLY AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE DK BLU WIRE DK BLU/WHT WIRE ECM 1 FUSE EXHAUST GAS RECIRCULATION VALVE (TOP FRONT OF ENGINE) FLUID TEMP SENSOR GROUND FLUID TEMP SENSOR SIGNAL IGNITION FUEL INJ 1 FUEL INJ 2 FUEL INJ 3 FUEL INJ 4 FUEL INJ 5 FUEL INJ 6 FUEL INJ 7 FUEL INJ 8 GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT PNK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK LT WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC PCM SOLENOID VALVE TCC SOLENOID VLAVE TCC/BRAKE SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS.) UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK WIRE 21 22 PPL 24 25 26 PNK WIRE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUEL LVL INPUT FUEL PUMP RELAY FUEL PUMP, SENDER (IN FUEL TANK UNDER REAR OF VEHICLE) SIG OUT SIG IN FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GAUGES FUSE 4 GRN WIRE GRY WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK AIR FUSE HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK INPUT INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP (MIL) "SERVICE ENGINE SOON" MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP RIGHT SIDE OF ENGINE) MASS AIRFLOW SENSOR (PART OF AIR INTAKE DUCT, TOP FRONT OF ENGINE) ODOMETER SPEEDOMETER/ ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION SWITCH PNK PNK WIRE PNK WIRE PPL PPL SECONDARY AIR INJECTION REACTION SOLENOID RED WIRE RED/BLK WIRE SECONDARY AIR INJECTION REACTION PUMP CLUTCH SECONDARY AIR INJECTION REACTION PUMP RELAY TAN WIRE TAN/BLK WIRE THROTTLE POSITION SENSOR (ON SIDE OF THROTTLE BODY) TRANS FUSE 20 UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

10 11 12 PPL 3-2 SHIFT SOL LOW REF BATTERY PPL PPL BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (PART OF DISTRIBUTOR, REAR TOP OF ENGINE) CKP SENS COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE ECM-B FUSE ENG 1 FUSE ENGINE COOLANT TEMPERATURE SENSOR (ON TOP FRONT OF ENGINE) GROUND EGR GND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START INJ 1 INJ 6 INJ 4 INJ 7 INJ. #2 INJ. #3 KNOCK SENSOR (ON RIGHT SIDE OF ENGINE) KS #1 LOW REF LOW REF LOW REF LOW REF LOW REF EGR VALVE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER) PPL PPL PNK WIRE PPL PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE SOLID STATE TAN WIRE TAN/WHT WIRE TRANS PRES B TRANS PRES C IGN 1 BATTERY LOW REF TRANS SW A TCC BK SW TRANS SW P PPL TRANS SW B CMP SENSOR ECT SENSOR OFF/RUN/CRK INJ 5 INJ 8 UNDERHOOD FUSE BLOCK W/ W/ WHT WIRE YEL WIRE YEL/BLK WIRE

10 11 12 PPL 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK WIRE 2-3 SHIFT SOLENOID 1-2 SHIFT SOLENOID 3-2 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH 4-SPEED TRANS. ONLY AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE DK BLU WIRE DK BLU/WHT WIRE ECM 1 FUSE EXHAUST GAS RECIRCULATION VALVE (TOP FRONT OF ENGINE) FLUID TEMP SENSOR GROUND FLUID TEMP SENSOR SIGNAL IGNITION FUEL INJ 1 FUEL INJ 2 FUEL INJ 3 FUEL INJ 4 FUEL INJ 5 FUEL INJ 6 FUEL INJ 7 FUEL INJ 8 GRN WIRE GRY WIRE HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT PNK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK LT WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC PCM SOLENOID VALVE TCC SOLENOID VLAVE TCC/BRAKE SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS.) UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK WIRE 21 22 PPL 24 25 26 PNK WIRE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUEL LVL INPUT FUEL PUMP RELAY FUEL PUMP, SENDER (IN FUEL TANK UNDER REAR OF VEHICLE) SIG OUT SIG IN FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GAUGES FUSE 4 GRN WIRE GRY WIRE HOT AT ALL TIMES UNDERHOOD FUSE BLOCK AIR FUSE HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK INPUT INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP (MIL) "SERVICE ENGINE SOON" MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP RIGHT SIDE OF ENGINE) MASS AIRFLOW SENSOR (PART OF AIR INTAKE DUCT, TOP FRONT OF ENGINE) ODOMETER SPEEDOMETER/ ORG/ WIRE ORG/BLK WIRE PARK/ NEUTRAL POSITION SWITCH PNK PNK WIRE PNK WIRE PPL PPL SECONDARY AIR INJECTION REACTION SOLENOID RED WIRE RED/BLK WIRE SECONDARY AIR INJECTION REACTION PUMP CLUTCH SECONDARY AIR INJECTION REACTION PUMP RELAY TAN WIRE TAN/BLK WIRE THROTTLE POSITION SENSOR (ON SIDE OF THROTTLE BODY) TRANS FUSE 20 UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

1226 1225 RANGE MODE SEL C RANGE MODE SEL B RANGE MODE SEL A 27 28 29 30 31 PPL 3/2 SHIFT SOL. PRESSURE CONTROL SOLENOID VALVE 397 1272 PPL APP 2 GND APP 1 GND APP 1 SIG 7 8 9 10 12 13 14 15 VSS RTN GROUND A/T FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AIR CONDITIONING SYSTEM ANTI-LOCK BRAKE SYSTEM AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CLOSURE SIG BOOST SENS INPUT PRESSURE CTRL SOL CRUISE CONTROL SWITCH DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DK PNK/ PNK WIRE ECT SIG GRN WIRE GRY WIRE GRY/BLK WIRE IAT SIG APP 2 SIG GLOW PLUG RELAY PRESSURE CTRL SOL FUEL TEMP SENS TFT SENS LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK PPL 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (BEHIND CENTER OF DASH) PPL PPL CKP GROUND A/C REQUEST PPL TCC/ABS SW IN BRAKE SWITCH INPUT CRUISE SET/COAST SIG PPL/WHT WIRE RADIO, POWER STEERING CONTROL MODULE RED WIRE RED/BLK WIRE RESUME SENSOR GND SET- SHIFT SOL. SHIFT SOL. SOLID STATE TAN WIRE TAN/BLK WIRE TIMING STEPPER MTR (HIGH) CRUISE ON/OFF SW TIMING STEPPER MTR (LOW) TIMING STEPPER MTR (LOW) TRANSMISSION SPEED INPUT TRANSMISSION TEMPERATURE SENSOR VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BELOW DASH, NEAR STEERING COLUMN) VSS SIG VSS SIG VSS HI VSS LO SECOND VSS SIG WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE