Chevrolet Chevy Express G2500 (1996-2012) hot in 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

1 8 17 18 19 20 32 33 34 40 53 57 59 60 72 74 75 80 GND 1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ABS RELAY, POWER BRAKE BOOSTER, ELEC BRAKE CONTROL 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 DK BLU/WHT WIRE ECMB FUSE 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 INPUT SHAFT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) 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 (NEAR BREAKOUT TO DLC) WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER PANEL) PPL PPL ANTI-LOCK BRAKES SYSTEM PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL PPL PPL/WHT WIRE PRESS CTRL SOLENOID RED WIRE RED/BLK WIRE REV, LO RUN WIRE TCC PWM 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

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 SS 10 13 29 30 TCC SOL 3-2 DOWNSHIFT SOL VSS LO (GROUND) VSS HI (SIGNAL) 1225 1224 PNK WIRE 2-3 SS 3-2 SS 4 6 11 12 16 17 18 19 21 22 23 SENSOR GROUND PCS SOL HI OUT RANGE SIGNAL "C" A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM (ELECTRONIC BRAKE CONTROL MODULE) AUTOMATIC 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 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 WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC 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) WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DRIVER OUTSIDE REAR- VIEW MIRROR FIXED GLASS FIXED GLASS MOVING GLASS FLEX CIRCUIT HEATED MIRROR PUSHBUTTON HOT AT ALL TIMES HOT IN HTD MIR FUSE 2 HTR A/C FUSE 12 HVAC CONTROL ASSEMBLY I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) RR DEFOG FUSE 22 LATCH FLEX CIRCUIT LATCH) LEFT REAR WINDOW DEFOGGER GRID MOVING GLASS ORG/ WIRE PASSEN- GER OUTSIDE REAR- VIEW MIRROR) PPL PPL (IN LEFT BODY HARNESS, APPROX 12 CM (5 IN) FROM CENTER DOME LAMP) PPL (OR BLK) WIRE PPL LATCH FLEX CIRCUIT REAR WINDOW DEFOGGER RELAY (ON BOTTOM OF LEFT "B" PILLAR) RIGHT REAR WINDOW DEFOGGER GRID RIGHT REAR WINDOW DEFOGGER GRID RUN WIRE SOLID STATE TIMER

BLK WIRE BRN WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) HEATED MIRROR SWITCH HEATER, A/C CONTROLLER HOT AT ALL TIMES HOT IN HTD MIR FUSE 2 HTR A/C FUSE 12 I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) LEFT POWER OUTSIDE REAR VIEW MIRROR ORG/ WIRE RIGHT POWER OUTSIDE REAR VIEW MIRROR RUN WIRE SOLID STATE TIMER W/ UPFITTER PROVISIONS ONLY

27 28 29 30 31 PPL 5 VOLT REF BLK WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CMP SIG DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) GRN WIRE GRY WIRE HIGH RES SIG HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START I/P FUSE BLOCK IGNITION TIMING STEPPER MOTOR (TOP FRONT OF ENGINE) LT BLU WIRE LT GRN WIRE OPTICAL FUEL/ TEMPERATURE SENSOR (TOP CENTER OF ENGINE, ON FUEL INJECTION PUMP) 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 PPL PPL PNK WIRE RED WIRE RED/BLK WIRE RUN WIRE SENS GRD STOP FUSE 1 TAN WIRE TAN/BLK WIRE TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS FUSE 20 WHT WIRE YEL WIRE YEL/BLK WIRE

27 28 29 30 31 PPL 5 VOLT REF BLK WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CMP SIG DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) FUEL TEMPERATURE SENSOR (TOP CENTER OF ENGINE, ON FUEL INJECTION PUMP) GRN WIRE GRY WIRE HIGH RES SIG HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START I/P FUSE BLOCK IGNITION TIMING STEPPER MOTOR (ON RIGHT SIDE OF FUEL INJECTOR PUMP) LT BLU WIRE LT GRN 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 PPL RED WIRE RED/BLK WIRE RUN WIRE SENS GRD STOP FUSE 1 TAN WIRE TAN/BLK WIRE TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS FUSE 20 WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

27 28 29 30 31 PPL 5 VOLT REF BLK WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CMP SIG DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) FUEL TEMPERATURE SENSOR (TOP CENTER OF ENGINE, ON FUEL INJECTION PUMP) GRN WIRE GRY WIRE HIGH RES SIG HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START I/P FUSE BLOCK IGNITION TIMING STEPPER MOTOR (ON RIGHT SIDE OF FUEL INJECTOR PUMP) LT BLU WIRE LT GRN 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 PPL RED WIRE RED/BLK WIRE RUN WIRE SENS GRD STOP FUSE 1 TAN WIRE TAN/BLK WIRE TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS FUSE 20 WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE