Dodge Ram Van B3500 (1996-2003) near bottom of brake booster) Wiring diagrams

7 6 5 PNK WIRE BLK WIRE BLK/LT BLU WIRE BLK/VIO WIRE BLU WIRE BRAKE LAMP SW BRAKE LAMP SWITCH (ON BRAKE PEDAL BRACKET) BRN WIRE BRN/YEL WIRE DATA LINK CONNECTOR (BELOW STEERING COLUMN) DK BLU WIRE DK BLU/BLK WIRE DK GRN WIRE DK GRN/BLK WIRE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (IN WATER JACKET AT FRONT OF INTAKE MANIFOLD) FUSE 14 FUSE 17/18 FUSE BLOCK (ON LEFT END OF DASH) GENERATOR, LEAK DETECTION PUMP GRN WIRE HOT AT ALL TIMES LT GRN WIRE LT GRN/WHT WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE ORG/DK BLU WIRE OUTPUT SPEED SENSOR (ON TRANSMISSION OVERDRIVE CASE) P/N PNK 6 WIRE PNK WIRE POWER DISTRIBUTION CENTER (IN ENGINE COMPT, NEXT TO BATTERY) RED WIRE STARTING/ CHARGING SYSTEM (ENGINE STARTER MOTOR RELAY) TAN/BLK WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANSMISSION CONTROL RELAY (IN PDC) TRANSMISSION RANGE SENSOR (ON LOWER LEFT SIDE OF TRANSMISSION) VIO WIRE VIO/BRN WIRE VSS SIG W/ AMPLIFIER WHT WIRE WHT/BLK WIRE WHT/DK BLU WIRE WHT/ORG WIRE WHT/PNK WIRE YEL WIRE

1 2 3 PRESS SW OUTPUT IGNITION A/C SWITCH SENSE A/C COMP RLY CTRL A/C PRESSURE SIG A/C SWITCH SENSE A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY (IN POWER DISTRIBUTION CENTER) A/C CYCLING SWITCH (IN FRONT EVAPORATOR COIL FINS) A/C HEATER CONTROL A/C HIGH PRESSURE SWITCH (ON DISCHARGE LINE, NEAR A/C CONDENSER) A/C LOW PRESSURE SWITCH (ON SUCTION LINE, NEAR FILTER DRIER) A/C SELECT DEFROST A/C SWITCH SIGNAL AMPLIFIER BLEND AIR DOOR ACTUATOR (UNDER DASH, AT TOP RIGHT END OF DISTRIBUTION DUCT) BLK WIRE BLK/BRN WIRE BLK/VIO WIRE BLOWER MOTOR (IN ENGINE COMPART- MENT IN BLOWER HOUSING) DK BLU WIRE DK BLU/BLK WIRE DK BLU/ORG WIRE DK BLU/RED WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE FAN HIGH FUSE 5 GRN WIRE HIGH BLOWER RELAY (IN ENGINE COMPARTMENT, ON HEATER-A/C HOUSING TOP COVER) HOT AT ALL TIMES HOT AT ALL TIMES POWER DISTRIBUTION CENTER FUSE 4 HOT IN RUN JUNCTION BLOCK FUSE 2 HVAC IGNITION RUN RELAY (IN POWER DISTRIBUTION CENTER) JOINT CONNECTOR NO.1 (LEFT SIDE OF DASH) LOW MED 1 MED 2 LT BLU WIRE LT GRN/GRY WIRE LT GRN/WHT WIRE NEAR BOTTOM OF BRAKE BOOSTER) OFF REC PANEL BI-LEVEL OFF REC PANEL BI-LEVEL FLOOR MODE DE-FOG DEFROST ORG/ WIRE POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) REAR A/C REAR A/C- HEATER UNIT RED WIRE RED/VIO WIRE RED/YEL WIRE TAN WIRE VIO WIRE VIO/WHT WIRE WHT WIRE YEL WIRE

BLK WIRE CENTRAL TIMER MODULE (LEFT CENTER OF DASH, NEAR SUPPORT BRACKET) CIRCUIT BREAKER OFF PARK DK BLU WIRE DK BLU/WHT WIRE FUSE 15 FUSE 8 FUSE BLOCK (ON LEFT END OF DASH) GROUND HEAD HEAD- LAMP SWITCH HEADLAMP BEAM SELECT SWITCH HEADLAMP RELAY (IN RELAY & FUSE/BLOCK) HEADLAMP RELAY CTRL HIGH BEAM INDICATOR HIGH BEAM OUTPUT HIGH HIGH LOW LOW HOT AT ALL TIMES HOT IN RUN, START INSTRUMENT CLUSTER J/C 4 (LEFT CENTER OF DASH, SUPPORT) LEFT HEADLAMP LOW BEAM OUTPUT LT GRN WIRE MULTI- FUNCTION SWITCH NCA WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE OTHER HIGHLINE PARK BRAKE INDICATOR PARK BRAKE SW SENS HIGH BEAM IND DRIVER IGNITION FUSED (B+) PARK BRAKE SWITCH (ON PARKING BRAKE PEDAL BRACKET) PNK WIRE POWER DISTRIBUTION CENTER (IN ENGINE COMPARTMENT, NEXT TO BATTERY) POWER SUPPLY RED WIRE RED/ORG WIRE RED/WHT WIRE RIGHT HEADLAMP VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/PNK WIRE

BLK WIRE CENTRAL TIMER MODULE (LEFT CENTER OF DASH, NEAR SUPPORT BRACKET) CIRCUIT BREAKER OFF PARK FUSE 15 HEAD HEADLAMP BEAM SELECT SWITCH HEADLAMP RELAY (IN RELAY & FUSE BLOCK) HEADLAMP RELAY CTRL HEADLAMP SWITCH HIGH BEAM INDICATOR HIGH HIGH LOW LOW FLASH HIGHLINE OTHER HOT AT ALL TIMES INSTRUMENT CLUSTER J/C 4 (LEFT SIDE OF DASH) LEFT HEADLAMP LT GRN WIRE MULTI- FUNCTION SWITCH NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE POWER DISTRIBUTION CENTER (IN ENGINE COMPARTMENT, NEXT TO BATTERY) RED WIRE RED/ORG WIRE RED/WHT WIRE RIGHT HEADLAMP VIO WIRE VIO/WHT WIRE WHT WIRE

1 2 3 4 5 6 7 8 9 10 A/C COMP RLY 8-BIT LOGIC A/C REQUEST A/C SELECT IN BRAKE SW IN GENERATOR AIR CONDI- TIONING SYSTEM AIR CONDITIONING ANTI-LOCK BRAKES SYSTEM AUTO SHT RLY CRUISE VAC SOL CRUISE VNT SOL BATTERY TEMPERATURE SENSOR (AT BOTTOM OF BATTERY TRAY) BLK WIRE BLK/LT BLU WIRE BRAKE LAMP SWITCH BRN WIRE CAMSHAFT POSITION SENSOR CHECK ENGINE WARNING LAMP CONTROL DRIVER CRUISE CONTROL SYSTEM CRUISE SW IN DATA LINK CONNECTOR (BELOW STEERING COLUMN) DAYTIME RUNNING LAMP MODULE DISTRIBUTOR DK BLU WIRE DK BLU/ORG WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/ORG WIRE EVAP/PURGE SOLENOID (IN ENG COMP, ON LEFT INNER WHEEL- HOUSE) FUEL MONITOR SIG PNK SCI TRANSMIT CCD BUS (-) SCI RECEIVE CCD BUS (+) WIRE FUEL PMP RLY EVAP SOL DRVR FUSE 8 FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START IGNITION COIL INSTRUMENT CLUSTER LEAK DETECT SEN LEAK DETECTION PUMP (IN ENG COMPT, ON LEFT INNER WHEELHOUSE) LT BLU/BLK WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE NCA WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE ORG/DK BLU WIRE ORG/RED WIRE ORG/WHT WIRE OVERDRIVE SWITCH PNK 6 7 WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRIBUTION CENTER POWER SUPPLY POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) RED WIRE RELAY & FUSE BLOCK FUSE 4 SYSTEM TAN/RED WIRE TAN/YEL WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANSMISSION RELAY VIO/BRN WIRE VIO/TAN WIRE W/ DRL ONLY WHT/BLK WIRE WHT/DK BLU WIRE WHT/DK GRN WIRE WHT/LT GRN WIRE WHT/PNK WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 A/C COMP RLY A/C REQUEST A/C SELECT IN BRAKE SW IN AIR CONDITIONING AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM AUTO SHT RLY CRUISE VAC SOL CRUISE VNT SOL BATT TEMP SENS BLK WIRE BLK/LT BLU WIRE BRN WIRE CAMSHAFT POSITION SENSOR CHECK ENGINE WARNING LAMP CRUISE CONTROL SYSTEM CRUISE SW IN DATA LINK CONNECTOR (BELOW STEERING COLUMN) DISTRIBUTOR 1 DK BLU WIRE DK BLU/ORG WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/ORG WIRE ENGINE OIL PRESSURE SENSOR (ON REAR OF ENG, TO RIGHT OF DISTRIBUTOR) FUEL MONITOR SIG SCI TRANSMIT CCD BUS (-) SCI RECEIVE CCD BUS (+) FUEL PMP RLY FUSE 1 FUSE 17/18 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION COIL INSTRUMENT CLUSTER LOGIC LT BLU/BLK WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE NCA WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE ORG/DK BLU WIRE ORG/RED WIRE ORG/WHT WIRE OVERDRIVE SWITCH PNK WIRE PNK/YEL WIRE POWER DISTRI- BUTION CENTER POWER SUPPLY POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) RED WIRE RELAY & FUSE BLOCK STOP LAMP SWITCH SYSTEM TAN/RED WIRE TAN/YEL WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANS- MISSION RELAY VIO/BRN WIRE WARNING LAMP DRIVER WHT WIRE WHT/BLK WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE WHT/PNK WIRE YEL/RED WIRE

A/C COMP RLY A/C REQUEST A/C SELECT IN BRAKE SW IN AIR CONDITIONING AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM ASD RELAY SENS TRANS OVERDRV AUTO SHT RLY CRUISE VAC SOL CRUISE VNT SOL BATT TEMP SENS BLK WIRE BLK/LT BLU WIRE BRN WIRE CAMSHAFT POSITION SENSOR CHECK ENGINE WARNING LAMP CRUISE CONTROL SYSTEM CRUISE SW IN DATA LINK CONNECTOR (BELOW STEERING COLUMN) DISTRIBUTOR 1 DK BLU WIRE DK BLU/ORG WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/ORG WIRE ENGINE OIL PRESSURE SENSOR (ON REAR OF ENG, TO RIGHT OF DISTRIBUTOR) FUEL MONITOR SIG SCI TRANSMIT CCD BUS (-) SCI RECEIVE CCD BUS (+) FUEL PMP RLY FUSE 1 FUSE 17/18 GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION COIL INSTRUMENT CLUSTER LOGIC LT BLU/BLK WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE NCA WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE ORG/DK BLU WIRE ORG/RED WIRE ORG/WHT WIRE OVERDRIVE SWITCH PNK WIRE PNK/YEL WIRE POWER DISTRI- BUTION CENTER POWER SUPPLY POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) RED WIRE RELAY & FUSE BLOCK STOP LAMP SWITCH SYSTEM TAN/RED WIRE TAN/YEL WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANS- MISSION RELAY VIO/BRN WIRE WARNING LAMP DRIVER WHT WIRE WHT/BLK WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE WHT/PNK WIRE YEL/RED WIRE

8-BIT LOGIC A/C COMP RLY A/C REQUEST A/C SELECT IN BRAKE SW IN GENERATOR AIR CONDI- TIONING SYSTEM AIR CONDITIONING ANTI-LOCK BRAKES SYSTEM ASD RELAY SENS TRANS OVERDRV LEAK DETECT CTRL BATT TEMP SENS AUTO SHT RLY CRUISE VAC SOL CRUISE VNT SOL BATTERY TEMPERATURE SENSOR (AT BOTTOM OF BATTERY TRAY) BLK WIRE BLK/LT BLU WIRE BLK/ORG WIRE BRAKE LAMP SWITCH BRN WIRE CAMSHAFT POSITION SENSOR CHECK ENGINE WARNING LAMP CONTROL DRIVER CRUISE CONTROL SYSTEM CRUISE SW IN DATA LINK CONNECTOR (BELOW STEERING COLUMN) DAYTIME RUNNING LAMP MODULE DISTRIBUTOR DK BLU WIRE DK BLU/ORG WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/ORG WIRE EVAP/PURGE SOLENOID (IN ENG COMP, ON LEFT INNER WHEEL- HOUSE) FUEL MONITOR SIG SCI TRANSMIT CCD BUS (-) SCI RECEIVE CCD BUS (+) FUEL PMP RLY EVAP SOL DRVR FUSE 8 FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START IGNITION COIL INSTRUMENT CLUSTER LEAK DETECT SEN LEAK DETECTION PUMP (IN ENG COMPT, ON LEFT INNER WHEELHOUSE) LT BLU/BLK WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE NCA WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE ORG/DK BLU WIRE ORG/DK GRN WIRE ORG/RED WIRE ORG/WHT WIRE OVERDRIVE SWITCH OXYGEN SENSOR DOWNSTREAM RELAY (CALI) PNK 9 10 WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRIBUTION CENTER POWER SUPPLY POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) RED WIRE RELAY & FUSE BLOCK FUSE 4 SYSTEM TAN/RED WIRE TAN/YEL WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANSMISSION RELAY VIO/BRN WIRE VIO/ORG WIRE VIO/TAN WIRE W/ DRL ONLY WHT/BLK WIRE WHT/DK BLU WIRE WHT/DK GRN WIRE WHT/LT GRN WIRE WHT/PNK WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 A/C COMP RLY 8-BIT LOGIC A/C REQUEST A/C SELECT IN BRAKE SW IN GENERATOR AIR CONDI- TIONING SYSTEM AIR CONDITIONING ANTI-LOCK BRAKES SYSTEM AUTO SHT RLY CRUISE VAC SOL CRUISE VNT SOL BATTERY TEMPERATURE SENSOR (AT BOTTOM OF BATTERY TRAY) BLK WIRE BLK/LT BLU WIRE BRAKE LAMP SWITCH BRN WIRE CAMSHAFT POSITION SENSOR CHECK ENGINE WARNING LAMP CONTROL DRIVER CRUISE CONTROL SYSTEM CRUISE SW IN DATA LINK CONNECTOR (BELOW STEERING COLUMN) DAYTIME RUNNING LAMP MODULE DISTRIBUTOR DK BLU WIRE DK BLU/ORG WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/ORG WIRE EVAP/PURGE SOLENOID (IN ENG COMP, ON LEFT INNER WHEEL- HOUSE) FUEL MONITOR SIG PNK SCI TRANSMIT CCD BUS (-) SCI RECEIVE CCD BUS (+) WIRE FUEL PMP RLY EVAP SOL DRVR FUSE 8 FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START IGNITION COIL INSTRUMENT CLUSTER LEAK DETECT SEN LEAK DETECTION PUMP (IN ENG COMPT, ON LEFT INNER WHEELHOUSE) LT BLU/BLK WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE NCA WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE ORG/DK BLU WIRE ORG/RED WIRE ORG/WHT WIRE OVERDRIVE SWITCH PNK 6 7 WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRIBUTION CENTER POWER SUPPLY POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) RED WIRE RELAY & FUSE BLOCK FUSE 4 SYSTEM TAN/RED WIRE TAN/YEL WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANSMISSION RELAY VIO/BRN WIRE VIO/TAN WIRE W/ DRL ONLY WHT/BLK WIRE WHT/DK BLU WIRE WHT/DK GRN WIRE WHT/LT GRN WIRE WHT/PNK WIRE YEL/RED WIRE

8-BIT LOGIC A/C COMP RLY A/C REQUEST A/C SELECT IN BRAKE SW IN GENERATOR AIR CONDI- TIONING SYSTEM AIR CONDITIONING ANTI-LOCK BRAKES SYSTEM ASD RELAY SENS TRANS OVERDRV LEAK DETECT CTRL BATT TEMP SENS AUTO SHT RLY CRUISE VAC SOL CRUISE VNT SOL BATTERY TEMPERATURE SENSOR (AT BOTTOM OF BATTERY TRAY) BLK WIRE BLK/LT BLU WIRE BLK/ORG WIRE BRAKE LAMP SWITCH BRN WIRE CAMSHAFT POSITION SENSOR CHECK ENGINE WARNING LAMP CONTROL DRIVER CRUISE CONTROL SYSTEM CRUISE SW IN DATA LINK CONNECTOR (BELOW STEERING COLUMN) DAYTIME RUNNING LAMP MODULE DISTRIBUTOR DK BLU WIRE DK BLU/ORG WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/ORG WIRE EVAP/PURGE SOLENOID (IN ENG COMP, ON LEFT INNER WHEEL- HOUSE) FUEL MONITOR SIG SCI TRANSMIT CCD BUS (-) SCI RECEIVE CCD BUS (+) FUEL PMP RLY EVAP SOL DRVR FUSE 8 FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START IGNITION COIL INSTRUMENT CLUSTER LEAK DETECT SEN LEAK DETECTION PUMP (IN ENG COMPT, ON LEFT INNER WHEELHOUSE) LT BLU/BLK WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/RED WIRE NCA WIRE NEAR BOTTOM OF BRAKE BOOSTER) ORG/ WIRE ORG/DK BLU WIRE ORG/DK GRN WIRE ORG/RED WIRE ORG/WHT WIRE OVERDRIVE SWITCH OXYGEN SENSOR DOWNSTREAM RELAY (CALI) PNK 9 10 WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRIBUTION CENTER POWER SUPPLY POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) RED WIRE RELAY & FUSE BLOCK FUSE 4 SYSTEM TAN/RED WIRE TAN/YEL WIRE THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSEMBLY) TRANSMISSION RELAY VIO/BRN WIRE VIO/ORG WIRE VIO/TAN WIRE W/ DRL ONLY WHT/BLK WIRE WHT/DK BLU WIRE WHT/DK GRN WIRE WHT/LT GRN WIRE WHT/PNK WIRE YEL/RED WIRE