Chevrolet Chevy Express G1500 (1996-2012) cruise control system Wiring diagrams

1 2 6 8 GND TCC PWM PC SOL HI PC SOL LO 1 8 17 18 19 20 32 33 34 40 53 57 58 59 60 72 74 75 79 80 GND 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID 4.3L PNK PPL PPL 4.3L WIRE 5.0L, 5.7L 5.0L, 5.7L PNK WIRE A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ABS RELAY, ELECTRONIC PWR BRAKE BOOSTER, BRAKE CTRL MODULE AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM PPL CRUISE CONTROL SYSTEM DK BLU WIRE ECMB FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FLUID TEMP SENSOR FUEL INJECTORS, IGNITION COIL PNK WIRE FUSE GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN, START HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT KICK PANEL) IGNITION CONTROL MODULE, FUEL INJECTORS, IGNITION COIL (4.3L) INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK REV, LO WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER PANEL) PPL PPL (DASH HARN, IN BREAKOUT TO POWER SEAT HARN) PPL PPL 5.0L, 5.7L (NEAR BREAKOUT TO PCM) PPL ANTI-LOCK BRAKES SYSTEM PPL (ENGINE HARN, AT BREAKOUT TO A/C COMP CLUTCH) PPL PPL PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE RUN WIRE TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) THROTTLE POSITION SENSOR (LEFT SIDE OF THROTTLE BODY) TRANS FUSE 20 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (RIGHT SIDE OF TRANSMISSION) WHT WIRE YEL WIRE YEL/BLK WIRE

1225 1224 PNK WIRE 2-3 SS 29 30 VSS LO (GROUND) VSS HI (SIGNAL) 3-2 SS A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM (ELECTRONIC BRAKE CONTROL MODULE) AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (ON LEFT SIDE OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE ECM-B FUSE ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM (FUEL INJECTORS) ENGINE CONTROLS SYSTEM (FUEL PUMP RELAY) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON TOP FRONT OF ENGINE) GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PNK PNK WIRE PNK WIRE PPL PPL/WHT WIRE PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE RUN WIRE TAN/WHT WIRE TCC PWM SOL TCC/ABS/ CRUISE SWITCH TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) THROTTLE POSITION (TP) SENSOR (ON SIDE OF THROTTLE BODY) TRANS FLUID TEMP SENSOR TRANS FUSE 20 UNDERHOOD FUSE/RELAY CENTER (ON LEFT SIDE OF ENGINE COMPT) ECM-I FUSE VEHICLE CONTROL MODULE (VCM) (ON LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (ON LEFT SIDE OF TRANSMISSION) YEL WIRE YEL/BLK WIRE

1 2 6 8 GND TCC PWM PC SOL HI PC SOL LO 1 8 17 18 19 20 32 33 34 40 53 57 58 59 60 72 74 75 79 80 GND 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 SHIFT SOLENOID 4.3L PNK PPL PPL 4.3L WIRE 5.0L, 5.7L 5.0L, 5.7L PNK WIRE A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ABS RELAY, ELECTRONIC PWR BRAKE BOOSTER, BRAKE CTRL MODULE AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM PPL CRUISE CONTROL SYSTEM DK BLU WIRE ECMB FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FLUID TEMP SENSOR FUEL INJECTORS, IGNITION COIL PNK WIRE FUSE GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN, START HOT IN RUN, START I/P FUSE BLOCK (LOWER LEFT KICK PANEL) IGNITION CONTROL MODULE, FUEL INJECTORS, IGNITION COIL (4.3L) INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANSMISSION) PNK PNK REV, LO WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER PANEL) PPL PPL (DASH HARN, IN BREAKOUT TO POWER SEAT HARN) PPL PPL 5.0L, 5.7L (NEAR BREAKOUT TO PCM) PPL ANTI-LOCK BRAKES SYSTEM PPL (ENGINE HARN, AT BREAKOUT TO A/C COMP CLUTCH) PPL PPL PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE RUN WIRE TAN WIRE TAN/BLK WIRE TCC PWM SOLENOID TCC SOLENOID TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) THROTTLE POSITION SENSOR (LEFT SIDE OF THROTTLE BODY) TRANS FUSE 20 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (RIGHT SIDE OF TRANSMISSION) WHT WIRE YEL WIRE YEL/BLK WIRE

1225 1224 PNK WIRE 2-3 SS 29 30 VSS LO (GROUND) VSS HI (SIGNAL) 3-2 SS A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM (ELECTRONIC BRAKE CONTROL MODULE) AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (ON LEFT SIDE OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE ECM-B FUSE ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM (FUEL INJECTORS) ENGINE CONTROLS SYSTEM (FUEL PUMP RELAY) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON TOP FRONT OF ENGINE) GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PNK PNK WIRE PNK WIRE PPL PPL/WHT WIRE PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE RUN WIRE TAN/WHT WIRE TCC PWM SOL TCC/ABS/ CRUISE SWITCH TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) THROTTLE POSITION (TP) SENSOR (ON SIDE OF THROTTLE BODY) TRANS FLUID TEMP SENSOR TRANS FUSE 20 UNDERHOOD FUSE/RELAY CENTER (ON LEFT SIDE OF ENGINE COMPT) ECM-I FUSE VEHICLE CONTROL MODULE (VCM) (ON LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (ON LEFT SIDE OF TRANSMISSION) YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CRUISE CONTROL SYSTEM DK BLU WIRE DK DK RIGHT FRONT INNER PARK/ TURN SIGNAL LAMP DK GRN WIRE HAZ SW TN SW HAZARD HAZARD FUSE 5 HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK TURN- B/U FUSE 16 I/P RELAY CENTER (UNDER LEFT SIDE OF DASH) INSTRU- MENT PANEL CLUSTER LEFT LEFT FRONT MARKER LAMP LEFT TAIL LAMP LEFT TURN IND LT BLU WIRE LT GRN WIRE MULTI- FUNCTION SWITCH NORMAL OFF HEAD PARK ORG/ WIRE PARK LPS FUSE 9 PNK WIRE PPL RIGHT RIGHT FRONT MARKER LAMP RIGHT FRONT OUTER PARK/ TURN SIGNAL LAMP RIGHT REAR PARK/ TURN SIGNAL LAMP LEFT REAR PARK/ TURN SIGNAL LAMP RIGHT TAIL LAMP LICENSE LAMP RIGHT TURN IND STOP FUSE 1 TCC/ BRAKE SWITCH (BEHIND DASH, ON TURN PWR HAZ PWR FLSHR OUT GND TURN/HAZARD LAMP FLASHER W/ OPTIONAL TRAILER WIRING PACKAGE) WHT WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE HAZ SW TN SW HAZARD HAZARD FUSE 5 HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK TURN- B/U FUSE 16 I/P RELAY CENTER (UNDER LEFT SIDE OF DASH) INSTRU- MENT PANEL CLUSTER LEFT LEFT FRONT PARK/TURN SIGNAL LAMP LEFT FRONT SIDE MARKER LAMP LEFT TAIL LAMP LEFT TURN IND LT BLU WIRE LT GRN WIRE MULTI- FUNCTION SWITCH NORMAL OFF HEAD PARK ORG/ WIRE PARK LPS FUSE 9 PNK WIRE PPL RIGHT RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT PARK/TURN SIGNAL LAMP RIGHT REAR PARK/ TURN SIGNAL LAMP LEFT REAR PARK/ TURN SIGNAL LAMP RIGHT TAIL LAMP LICENSE LAMP RIGHT TURN IND STOP FUSE 1 TCC/ BRAKE SWITCH (BEHIND DASH, ON TURN PWR HAZ PWR FLSHR OUT GND TURN/HAZARD LAMP FLASHER W/ OPTIONAL TRAILER WIRING PACKAGE) WHT WIRE YEL WIRE

6 OHMS BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE PEDAL) BRN WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CONVEN- IENCE CENTER (UNDER LEFT SIDE OF I/P) INTERIOR LIGHTS SYSTEM CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK LT DK RIGHT FRONT PARK HAZ SW TN SW HAZARD HAZARD FUSE 5 HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IN-LINE RESISTOR INSTRU- MENT CLUSTER RIGHT TURN IND. LEFT LEFT REAR PARK LEFT SIDE MARKER LAMP LEFT TURN IND LICENSE LAMP LT BLU WIRE LT GRN WIRE LT LEFT FRONT PARK NORMAL OFF HEAD PARK ORG/ WIRE PARK LPS FUSE 9 PNK WIRE PPL RIGHT RIGHT REAR PARK RIGHT SIDE MARKER LAMP STOP FUSE 1 STOP, TAIL LAMP TCC/ STOP LAMP SWITCH (TOP OF TURN B/U FUSE 16 TURN PWR HAZ PWR FLSHR OUT GND TURN SIGNAL LAMP TURN/ HAZARD SWITCH TURN/HAZARD LAMP FLASHER (I/P RELAY CENTER: BELOW CENTER OF I/P) W/ OPTIONAL TRAILER WIRING PACKAGE (RIGHT REAR OF INTERIOR) WHT WIRE YEL WIRE

21 22 PPL 24 25 26 PNK WIRE A/C REQ A/C SYSTEM ANTI-LOCK BRAKE SYSTEM AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG DISTRIBUTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EAVP PURGE CHARGE IND AIR PUMP EVAP VENT MIL 2-3 SHIFT 1-2 SHIFT VSS VSS TFT SENS GEN F EVAPORATIVE EMISSION CANISTER VENT SOLENOID (ON FRONT OF EVAP CANISTER) EVAPORATIVE EMISSIONS CANISTER PURGE SOLENOID VALVE (RIGHT SIDE OF ENGINE) GEN TO GRN WIRE GROUND EGR SOL TCC SOL A/C CLUTCH GRY WIRE HIGH VOLTAGE COIL WIRE IAC COIL B IAC COIL B IAC COIL A IAC COIL A IDLE AIR CONTROL VALVE (TOP LEFT SIDE OF ENGINE) IGNITION COIL (TOP REAR OF ENGINE) IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENGINE, AT IGNITION COIL) LOW REF LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAF SENS MAP SENS PC SOL EGR SUPP PC SOL F PMP RLY PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER) PPL PPL FUEL LEV PPL FUEL LEV A/C LOW PPL/WHT WIRE RED WIRE RED/BLK WIRE SOLID STATE STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRANS C TRANS A PRES SENS PNK WIRE VEHICLE SPEED SENSOR (RIGHT SIDE OF TRANSMISSION) VSS LOW VSS HI AT ISS HI AT ISS LO TP SENS IAT SENS SIG IC TIMING WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

21 22 PPL 24 25 26 PNK WIRE A/C REQ A/C SYSTEM ANTI-LOCK BRAKE SYSTEM AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG DISTRIBUTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EAVP PURGE CHARGE IND AIR PUMP EVAP VENT MIL 2-3 SHIFT 1-2 SHIFT VSS VSS TFT SENS GEN F EVAPORATIVE EMISSIONS CANISTER PURGE SOLENOID VALVE (RIGHT SIDE OF ENGINE) GEN TO GRN WIRE GROUND EGR SOL TCC SOL A/C CLUTCH GRY WIRE HIGH VOLTAGE COIL WIRE IAC COIL B IAC COIL B IAC COIL A IAC COIL A IDLE AIR CONTROL VALVE (TOP LEFT SIDE OF ENGINE) IGNITION COIL (TOP RIGHT SIDE OF ENGINE) IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENGINE, AT IGNITION COIL) LOW REF LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT PPL MAF SENS MAP SENS PC SOL EGR SUPP PC SOL F PMP RLY PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER) PPL PPL FUEL LEV PPL FUEL LEV A/C LOW PPL/WHT WIRE RED WIRE RED/BLK WIRE SOLID STATE STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRANS C TRANS A PRES SENS PNK WIRE VEHICLE SPEED SENSOR (ON SIDE OF TRANSMISSION) VSS LOW VSS HI AT ISS HI AT ISS LO TP SENS IAT SENS SIG IC TIMING WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

21 22 PPL 24 25 26 PNK WIRE A/C REQ A/C SYSTEM ANTI-LOCK BRAKE SYSTEM AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG DISTRIBUTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EAVP PURGE CHARGE IND AIR PUMP EVAP VENT MIL 2-3 SHIFT 1-2 SHIFT VSS VSS TFT SENS GEN F EVAPORATIVE EMISSIONS CANISTER PURGE SOLENOID VALVE (RIGHT SIDE OF ENGINE) GEN TO GRN WIRE GROUND EGR SOL TCC SOL A/C CLUTCH GRY WIRE HIGH VOLTAGE COIL WIRE IAC COIL B IAC COIL B IAC COIL A IAC COIL A IDLE AIR CONTROL VALVE (TOP LEFT SIDE OF ENGINE) IGNITION COIL (TOP RIGHT SIDE OF ENGINE) IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENGINE, AT IGNITION COIL) LOW REF LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT PPL MAF SENS MAP SENS PC SOL EGR SUPP PC SOL F PMP RLY PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER) PPL PPL FUEL LEV PPL FUEL LEV A/C LOW PPL/WHT WIRE RED WIRE RED/BLK WIRE SOLID STATE STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRANS C TRANS A PRES SENS PNK WIRE VEHICLE SPEED SENSOR (ON SIDE OF TRANSMISSION) VSS LOW VSS HI AT ISS HI AT ISS LO TP SENS IAT SENS SIG IC TIMING WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE