Chevrolet Chevy Express G3500 (1996-2012) engine controls system Wiring diagrams

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID 3-2 CTRL SOLENOID 3-2 DOWNSHIFT SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BATTERY IN BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CRUISE CONTROL MODULE DATA LINK CONNECTOR (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE ECM-B FUSE ECT SENS INPUT ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUEL INJECTORS (4.3L, 5.0L, 5.7L) 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 COIL, FUEL INJECTORS 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 PPL PPL/WHT WIRE PRESS CTRL SOLENOID RANGE SIGNAL "B" PNK RANGE SIGNAL "A" WIRE RED WIRE RED/BLK WIRE SENSOR GROUND SENSOR RETURN 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) THROTTLE POSITION SENSOR (ON THROTTLE BODY) TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS FUSE 20 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 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

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 SS 2-3 SS A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ANTI-LOCK BRAKES SYSTEM (ELECTRONIC BRAKE CONTROL MODULE) APP 3 SIG SENS GROUND A/T ISS SENS HI AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (ON LEFT SIDE OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM I FUSE ECM-B FUSE ENGINE CONTROLS SYSTEM 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 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 POWERTRAIN CONTROL MODULE (PCM) (BEHIND CENTER OF DASH) PPL PPL PNK PNK WIRE PPL/WHT WIRE PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE SOUND SYSTEMS (RADIO) STOP FUSE 1 STOPLAMP SWITCH TAN WIRE TAN/WHT WIRE TCC PWM SOL TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS FLUID TEMP SENSOR TRANS FUSE 20 UNDERHOOD FUSE/RELAY CENTER (ON LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (ON LEFT SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER MODULE (UNDER GLOVE BOX) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH ABS RELAY, POWER BRAKE BOOSTER, ELECTRONIC BRAKE CONTROL MODULE ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM (ELECTRONIC BRAKE CONTROL MODULE) ANTI-LOCK BRAKES SYSTEM PPL APP 3 SIG SENS GROUND A/T ISS SENS HI 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 COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM I FUSE ECM-B FUSE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON TOP FRONT OF ENGINE) FUEL PUMP RELAY GAUGES FUSE 4 GLOW PLUG RELAY, TURBOCHARGER WASTEGATE SOLENOID, EPR SOLENOID GRY WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK (LOWER LEFT KICK PANEL) INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP ORG/ WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (BEHIND CENTER OF DASH) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL PNK PNK WIRE PPL/WHT WIRE PRESSURE CONTROL SOLENOID VALVE RED WIRE RED/BLK WIRE REV, LO RUN WIRE SOUND SYSTEMS TAN WIRE TAN/WHT WIRE TCC PWM SOLENOID TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) TRANS FLUID TEMP SENSOR TRANS FUSE 20 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (VSS) (ON LEFT SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (UNDER GLOVE BOX) WHT/BLK 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 SOLENOID 3-2 DOWNSHIFT SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BATTERY IN BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CRUISE CONTROL MODULE DATA LINK CONNECTOR (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE ECM-B FUSE ECT SENS INPUT ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUEL INJECTORS (4.3L, 5.0L, 5.7L) 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 COIL, FUEL INJECTORS 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 PPL PPL/WHT WIRE PRESS CTRL SOLENOID RANGE SIGNAL "B" PNK RANGE SIGNAL "A" WIRE RED WIRE RED/BLK WIRE SENSOR GROUND SENSOR RETURN 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) THROTTLE POSITION SENSOR (ON THROTTLE BODY) TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS FUSE 20 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 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

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 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

1589 2759 PPL 31 16 LOW REF SENS SIG PPL 4.3L 4.8L/5.3L/6.0L 6.6L 50 41 36 35 SENS SIG BLK WIRE BLK/WHT WIRE BRAKE BOOSTER FLUID FLOW ALARM SWITCH (W/ BRAKE WARNING INDICATOR) BRAKE BOOSTER FLUID PRESSURE ALARM SWITCH (IN POWER STEERING PUMP INLET HOSE) BRAKE FLUID LEVEL SWITCH (AT LEFT REAR OF ENGINE COMPT) BRAKE PRESSURE BRN WIRE CARGO DOOR LATCH ASSEMBLY (W/ CARGO/PASSENGER) (IN RIGHT REAR CARGO DOOR) COMPUTER DATA LINES SYSTEM DIFFERENTIAL SWITCH (ON BRAKE VALVE, NEAR FRONT OF EBCM) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER DOOR LATCH ASSEMBLY (AT REAR OF DRIVER DOOR) DRIVER INFORMATION CENTER (DIC) SWITCH ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL SWITCH (ON LEFT SIDE OF OIL PAN) ENGINE OIL PRESSURE (EOP) SENSOR (EXCEPT 6.6L: ON TOP REAR OF ENGINE) EXCEPT 5.3L 5.3L FUEL LEVEL SENSOR (ON LEFT FRAME FUEL PUMP, SENDER ASSEMBLY (ON FUEL TANK) GRY WIRE GRY/BLK WIRE ILLUMI- NATION IND CTRL LEFT REAR SIDE DOOR JAMB SWITCH (W/ HINGED) (AT LEFT "B" PILLAR) LIGHT DUTY LOW REF LT BLU/BLK WIRE PASSENGER DOOR LATCH ASSEMBLY (AT REAR OF FRONT PASSENGER DOOR) PERSON- ALIZATION PNK WIRE PNK/BLK WIRE PPL PPL HEAVY DUTY PPL PNK WIRE RAIL) RIGHT REAR SIDE DOOR JAMB SWITCH (W/ CARGO/PASSENGER) (AT RIGHT "B" PILLAR) SENS SIG LOW REF SET/ RESET SWITCH SIG DATA LINK RESISTOR 44 43 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRIP/ FUEL VEHICLE INFO W/ BRAKE WARNING INDICATOR SYSTEM WATER IN-FUEL SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE