Chevrolet Chevy Express G2500 (1996-2012) lt grn Wiring diagrams

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID 3-2 CTRL ONLY) SOLENOID 3-2 DOWNSHIFT SOL AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BATTERY IN BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE ECM-B FUSE ECT SENS INPUT ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUEL INJECTORS (5.0L/5.7L) FUEL INJECTORS IGNITION COIL FUEL PUMP RELAY, FUEL PUMP SWITCH GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN OFF, RUN OR START HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK IGNITION IN PNK IGNITION IN WIRE INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL PPL BRAKE SWITCH INPUT PPL DATA CLASS II ORG/ WIRE PCM GROUND PCS SOL LO OUT PNK PNK WIRE PNK WIRE PPL PPL HI PPL/WHT WIRE PRESS CTRL SOLENOID RANGE SIGNAL "B" PNK RANGE SIGNAL "A" WIRE RED WIRE RED/BLK WIRE SENSOR GROUND 6 7 8 11 PCS SOL HI OUT A/T ISS HI A/T ISS LO RANGE SIGNAL "C" SENSOR RETURN SWITCH ASSEMBLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC PWM SOLENOID TCC SOL TCC SOLENOID TCC/ABS/ CRUISE SWITCH TCC/STOP LAMP SWITCH (ON BRAKE PEDAL SUPPORT) TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS FUSE 20 TRANS RANGE PRESSURE TRANS TEMP SIG IN TWISTED WIRE PAIR UNDERHOOD FUSE/RELAY CENTER ECM-1 FUSE VEHICLE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VSS HI VSS LO WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID 3-2 CTRL ONLY) SOLENOID 3-2 DOWNSHIFT SOL AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BATTERY IN BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE ECM-B FUSE ECT SENS INPUT ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUEL INJECTORS (5.0L/5.7L) FUEL INJECTORS IGNITION COIL FUEL PUMP RELAY, FUEL PUMP SWITCH GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN OFF, RUN OR START HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK IGNITION IN PNK IGNITION IN WIRE INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL PPL BRAKE SWITCH INPUT PPL DATA CLASS II ORG/ WIRE PCM GROUND PCS SOL LO OUT PNK PNK WIRE PNK WIRE PPL PPL HI PPL/WHT WIRE PRESS CTRL SOLENOID RANGE SIGNAL "B" PNK RANGE SIGNAL "A" WIRE RED WIRE RED/BLK WIRE SENSOR GROUND 6 7 8 11 PCS SOL HI OUT A/T ISS HI A/T ISS LO RANGE SIGNAL "C" SENSOR RETURN SWITCH ASSEMBLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC PWM SOLENOID TCC SOL TCC SOLENOID TCC/ABS/ CRUISE SWITCH TCC/STOP LAMP SWITCH (ON BRAKE PEDAL SUPPORT) TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS FUSE 20 TRANS RANGE PRESSURE TRANS TEMP SIG IN TWISTED WIRE PAIR UNDERHOOD FUSE/RELAY CENTER ECM-1 FUSE VEHICLE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VSS HI VSS LO WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID 3-2 CTRL ONLY) SOLENOID 3-2 DOWNSHIFT SOL AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BATTERY IN BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE ECM-B FUSE ECT SENS INPUT ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUEL INJECTORS (5.0L/5.7L) FUEL INJECTORS IGNITION COIL FUEL PUMP RELAY, FUEL PUMP SWITCH GAUGES FUSE 4 GRY WIRE HOT AT ALL TIMES HOT IN OFF, RUN OR START HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK IGNITION IN PNK IGNITION IN WIRE INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL PPL BRAKE SWITCH INPUT PPL DATA CLASS II ORG/ WIRE PCM GROUND PCS SOL LO OUT PNK PNK WIRE PNK WIRE PPL PPL HI PPL/WHT WIRE PRESS CTRL SOLENOID RANGE SIGNAL "B" PNK RANGE SIGNAL "A" WIRE RED WIRE RED/BLK WIRE SENSOR GROUND 6 7 8 11 PCS SOL HI OUT A/T ISS HI A/T ISS LO RANGE SIGNAL "C" SENSOR RETURN SWITCH ASSEMBLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC PWM SOLENOID TCC SOL TCC SOLENOID TCC/ABS/ CRUISE SWITCH TCC/STOP LAMP SWITCH (ON BRAKE PEDAL SUPPORT) TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS FUSE 20 TRANS RANGE PRESSURE TRANS TEMP SIG IN TWISTED WIRE PAIR UNDERHOOD FUSE/RELAY CENTER ECM-1 FUSE VEHICLE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VSS HI VSS LO WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID A/T ISS SENS HI IN A/T ISS SENS LO IN ACCELERATOR PEDAL POSITION (APP) MODULE (THROTTLE PEDAL MOUNT) APP 1 SIGNAL IN APP 2 SIGNAL IN APP 3 SIGNAL IN AUTO TRANSMISSION INPUT SHAFT SPEED SENSOR (INSIDE FRONT OF TRANSMISSION) AUTOMATIC TRANSMISSION BATTERY IN BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRAKE SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) BRAKE SWITCH IN BRN WIRE BRN/WHT WIRE CLASS II DATA DIESEL FUEL FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM-B FUSE ECT SENSOR IN ENGINE COOLANT TEMP SENSOR (TOP FRONT OF ENGINE) GAUGES FUSE 4 GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK IGNITION IN INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL ORG/ WIRE PCM GROUND PCS SOL HI OUT PCS SOL LO OUT PNK POWER WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BEHIND CENTER OF DASH) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PRESS CTRL HI SOLENOID RED WIRE RED/BLK WIRE SENSOR GROUND STOP FUSE 1 STOPLAMP SWITCH IN TAN/WHT WIRE TCC PWM SOL TCC PWM SOLENOID TFT SENSOR IN TRANS FLUID TEMP SENSOR TRANS FUSE 20 TRANS RANGE "A" TRANS RANGE "B" TRANS RANGE "C" TRANS RANGE PRESSURE SWITCH ASSEMBLY UNDERHOOD FUSE/RELAY CENTER VEHICLE SPEED SENSOR (VSS) BUFFER (LEFT SIDE OF DASH) VSS HI IN VSS IN VSS LO IN VSS OUT WHT WIRE YEL WIRE YEL/BLK WIRE

37 38 GMLAN HI-SPD (-) GMLAN HI-SPD (+) 38 37 GMLAN HI-SPD (+) GMLAN HI-SPD (-) 39 23 46 29 RANGE SW - P RANGE SW - C RANGE SW - B RANGE SW - A 72 32 RANGE SW - B RANGE SW - A BACKUP LAMP (LEFT) BACKUP LAMP- RIGHT BKUP LAMP SUPPLY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) CLASS 2 DATA COMPUTER DATA LINES SYSTEM CUTAWAY DIESEL DK GRN WIRE ENGINE CONTROL MODULE (LEFT FRONT SIDE OF ENGINE COMPARTMENT) GAS GROUND GRY WIRE HOT AT ALL TIMES LT GRN WIRE MIRRORS SYSTEM PARK/NEUTRAL POSITION SWITCH (ON LEFT SIDE OF TRANSMISSION) PASSENGER/ CARGO POWERTRAIN CONTROL MODULE (IN ENGINE COMPT, ON LEFT INNER FENDER) RANGE SW - C RANGE SW P RED WIRE RED/WHT WIRE TAIL/STOP, TURN SIGNAL LAMP (LEFT) TAIL/STOP, TURN SIGNAL LAMP (RIGHT) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TBC 2 FUSE 18 TRANSMISSION CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPARTMENT) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) 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

BLK WIRE BRAKE IND CTRL BRAKE PSI IN DRL RELAY CTRL BULB TEST LOCK OFF DAYTIME RUNNING LAMPS MODULE (UNDER LEFT SIDE OF I/P, TAPED TO I/P HARNESS) DAYTIME RUNNING LAMPS RELAY (UNDER LEFT SIDE OF I/P, ON CONVENIENCE CENTER) DRL DIODE MODULE DRL FUSE 15 DRL INDICATOR FROM 36-PIN LEFT BULKHEAD CONN) BREAKOUT) LT GAUGES FUSE 4 GRN WIRE GROUND HEAD HEADLAMP DIMMER SWITCH HEADLAMP SWITCH HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (LEFT KICK PANEL) IGNITION SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT FORWARD LAMP BREAKOUT TOWARD RIGHT) LEFT FORWARD LAMP BREAKOUT) LEFT HIGH BEAM HEADLAMP LAMP LEFT LOW BEAM HEADLAMP LAMP RIGHT LOW BEAM HEADLAMP LAMP LIGHTING MAXI FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT PPL OFF PARK ORG/ WIRE PARK BRAKE IN IGN KEY STATUS PARK BRAKE WARNING SWITCH (ON PARK BRAKE) PNK IGN (RUN/ST) LAMP FEED WIRE PNK WIRE PPL RED WIRE RIGHT HIGH BEAM HEADLAMP LAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER (ENGINE COMPT, LEFT FENDER) WHT WIRE YEL WIRE

BLK WIRE BRAKE IND CTRL BRAKE PSI IN DRL RELAY CTRL BULB TEST LOCK OFF DAYTIME RUNNING LAMPS MODULE (UNDER LEFT SIDE OF I/P, TAPED TO I/P HARNESS) DAYTIME RUNNING LAMPS RELAY (UNDER LEFT SIDE OF I/P, ON CONVENIENCE CENTER) DRL DIODE MODULE DRL FUSE 15 DRL INDICATOR FROM 36-PIN LEFT BULKHEAD CONN) BREAKOUT) LT GAUGES FUSE 4 GRN WIRE GROUND HEAD HEADLAMP DIMMER SWITCH HEADLAMP SWITCH HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (LEFT KICK PANEL) IGNITION SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT FORWARD LAMP BREAKOUT TOWARD RIGHT) LEFT FORWARD LAMP BREAKOUT) LEFT HEADLAMP LIGHTING MAXI FUSE LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT PPL OFF PARK ORG/ WIRE PARK BRAKE IN IGN KEY STATUS PARK BRAKE WARNING SWITCH (ON PARK BRAKE) PNK IGN (RUN/ST) LAMP FEED WIRE PNK WIRE PPL RED WIRE RIGHT HEADLAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER (ENGINE COMPT, LEFT FENDER) WHT WIRE YEL WIRE

BASE BATTERY INPUT KEY-IN SW INPUT FASTEN BELTS OUT GROUND PNK IGNITION ON INPUT WIRE BLK WIRE BLK/WHT WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DK GRN WIRE DRIVER DOOR JAMB SWITCH EXCEPT BASE GAUGES FUSE 4 GRY WIRE HAZARD FUSE 5 HOT AT ALL TIMES HOT IN PARK OR HEAD HOT IN RUN OR START I/P FUSE BLOCK (ON LOWER LEFT KICK PANEL) IGNITION KEY ALARM SWITCH ILLUM MIR FUSE 14 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL CLUSTER (IPC) LIGHTS ON INPUT LT GRN WIRE MULTI-FUNCTION ALARM MODULE (UNDER LEFT SIDE OF DASH) NCA WIRE ORG/ WIRE PNK WIRE SAFETY BELT INPUT SAFETY BELT LAMP SPEED INPUT TAN WIRE YEL WIRE

BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) DK PPL FRONT WINDSHIELD WIPER SWITCH HI SIGNAL GRN WIRE GRY WIRE HORN/ WASHER PCB HOT AT ALL TIMES LO INT LOW REFERENCE LT BLU WIRE LT GRN WIRE MIST OFF ORG/ WIRE PNK WIRE TAN WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WINDSHIELD WASHER RELAY CONTROL WINDSHIELD WASHER SWITCH SIGNAL WINDSHIELD WIPER MOTOR (ON LEFT SIDE OF FIREWALL) WINDSHIELD WIPER MOTOR PARK SWITCH SIGNAL WINDSHIELD WIPER SWITCH HI SIGNAL WINDSHIELD WIPER SWITCH LOW SIGNAL WINDSHIELD WIPER SWITCH SIGNAL 2 WPR FUSE 55 WPR PCB WPR-HI PCB WSW FUSE 14 YEL WIRE