Dodge Ram Wagon B2500 (1996-2002) overdrive switch Wiring diagrams

5 VOLT SUPPLY SENSOR GROUND AUTOMATIC SHUTDOWN RELAY BLK WIRE BLK/LT BLU WIRE BLK/TAN WIRE BLU WIRE BRN WIRE BRN/YEL WIRE CCD (+) CCD BUS(-) DK BLU WIRE DK BLU/BLK WIRE ECT SIG ENGINE CONTROLS SYSTEM FUSE 11 FUSE 9 FUSED (B+) TPS SIG GROUND GROUND GENERATOR GOVERNOR PRESSURE SIGNAL GRN WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN, START IGN SENSOR GND PNP SW SENSE INSTRUMENT CLUSTER JUNCTION BLOCK LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/WHT WIRE MIL IND ORG/ WIRE ORG/BLK WIRE ORG/DK BLU WIRE ORG/DK GRN WIRE ORG/WHT WIRE OVERDRIVE LAMP OVERDRIVE SOLENOID CONTROL OVERDRIVE SWITCH PNK 5 WIRE PNK WIRE POWER SUPPLY POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) RED WIRE RED/WHT WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH SOLENOID CONTROL TRANSMISSION RELAY OUTPUT TRANSMISSION SOLENOID ASSEMBLY (ON LEFT SIDE OF TRANSMISSION) TRANSMISSION TEMPERATURE SENSOR SIGNAL VARIABLE FORCE SOLENOID CONTROL VIO WIRE VIO/BRN WIRE VIO/LT BLU WIRE VIO/WHT WIRE WARNING LAMP DRIVE WHT WIRE WHT/BLK WIRE WHT/ORG WIRE WHT/PNK WIRE

5 VOLT SUPPLY BLK WIRE BLK/LT BLU WIRE BLK/TAN WIRE BLU WIRE BRN/ORG WIRE CKP SENSOR SIGNAL CRANKSHAFT POSITION SENSOR (TOP OF TRANSMISSION BELL HOUSING) DK BLU WIRE DK BLU/BLK WIRE DK GRN/RED WIRE FUSE 17 FUSE 19 FUSE BLOCK FUSED (B+) TPS SIG MAP SENS SIG GROUND GROUND GRN WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN, START IGN SENSOR GND PNP SW SENSE CKP SIG ECT SIG LR/LU SOLENOID CONTROL LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/WHT WIRE NOTE: TRANSMISSION SCHEMATIC IS VALID FOR FOUR SPEED MODELS ONLY OD LP DRIVER OD OFF SW SENSE SCI TRANSMIT SCI RECEIVE ORG/ WIRE ORG/BLK WIRE ORG/DK BLU WIRE ORG/WHT WIRE OVERDRIVE ON/OFF INDICATOR LAMP OVERDRIVE SOLENOID CONTROL OVERDRIVE SWITCH PNK 13 14 15 16 WIRE PNK 5 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT SIDE OF SAFETY WALL) RED WIRE RED/WHT WIRE SENSOR GROUND TAN WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH SOLENOID CONTROL TRANSMISSION TEMPERATURE SENSOR SIGNAL VARIABLE FORCE SOLENOID CONTROL GOVERNOR PRESSURE SIGNAL VIO WIRE VIO/LT BLU WIRE VIO/WHT WIRE WHT WIRE WHT/ORG WIRE

5 VOLT SUPPLY BLK WIRE BLK/LT BLU WIRE BLK/TAN WIRE BLU WIRE BRN/ORG WIRE CKP SENSOR SIGNAL CRANKSHAFT POSITION SENSOR (TOP OF TRANSMISSION BELL HOUSING) DK BLU WIRE DK BLU/BLK WIRE DK GRN/RED WIRE FUSE 17 FUSE 19 FUSE BLOCK FUSED (B+) TPS SIG MAP SENS SIG GROUND GROUND GRN WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN, START IGN SENSOR GND PNP SW SENSE CKP SIG ECT SIG LR/LU SOLENOID CONTROL LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/WHT WIRE NOTE: TRANSMISSION SCHEMATIC IS VALID FOR FOUR SPEED MODELS ONLY OD LP DRIVER OD OFF SW SENSE SCI TRANSMIT SCI RECEIVE ORG/ WIRE ORG/BLK WIRE ORG/DK BLU WIRE ORG/WHT WIRE OVERDRIVE ON/OFF INDICATOR LAMP OVERDRIVE SOLENOID CONTROL OVERDRIVE SWITCH PNK 13 14 15 16 WIRE PNK 5 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT SIDE OF SAFETY WALL) RED WIRE RED/WHT WIRE SENSOR GROUND TAN WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH SOLENOID CONTROL TRANSMISSION TEMPERATURE SENSOR SIGNAL VARIABLE FORCE SOLENOID CONTROL GOVERNOR PRESSURE SIGNAL VIO WIRE VIO/LT BLU WIRE VIO/WHT WIRE WHT WIRE WHT/ORG WIRE

5 VOLT SUPPLY BLK WIRE BLK/LT BLU WIRE BLK/TAN WIRE BLU WIRE BRN/ORG WIRE CKP SENSOR SIGNAL CRANKSHAFT POSITION SENSOR (TOP OF TRANSMISSION BELL HOUSING) DK BLU WIRE DK BLU/BLK WIRE DK GRN/RED WIRE FUSE 17 FUSE 19 FUSE BLOCK FUSED (B+) TPS SIG MAP SENS SIG GROUND GROUND GRN WIRE GRY WIRE GRY/BLK WIRE HOT IN RUN, START IGN SENSOR GND PNP SW SENSE CKP SIG ECT SIG LR/LU SOLENOID CONTROL LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/WHT WIRE NOTE: TRANSMISSION SCHEMATIC IS VALID FOR FOUR SPEED MODELS ONLY OD LP DRIVER OD OFF SW SENSE SCI TRANSMIT SCI RECEIVE ORG/ WIRE ORG/BLK WIRE ORG/DK BLU WIRE ORG/WHT WIRE OVERDRIVE ON/OFF INDICATOR LAMP OVERDRIVE SOLENOID CONTROL OVERDRIVE SWITCH PNK 13 14 15 16 WIRE PNK 5 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (RIGHT SIDE OF SAFETY WALL) RED WIRE RED/WHT WIRE SENSOR GROUND TAN WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH SOLENOID CONTROL TRANSMISSION TEMPERATURE SENSOR SIGNAL VARIABLE FORCE SOLENOID CONTROL GOVERNOR PRESSURE SIGNAL VIO WIRE VIO/LT BLU WIRE VIO/WHT WIRE WHT WIRE WHT/ORG WIRE

A/C HEATER CONTROL BASE BLEND DOOR ACTUATOR BLK WIRE CENTER HIGH MOUNTED STOP LAMP CENTRAL TIMER MODULE CIGAR LIGHTER COURTESY LAMP RELAY DATA LINK CONNECTOR (DLC) DRIVER DOOR AJAR SWITCH FRONT DOME/ READING LAMPS FUEL PUMP MODULE GLOVE BOX LAMP/ SWITCH HEADLAMP SWITCH INSTRUMENT CLUSTER LEFT BACK-UP LAMP LEFT LICENSE LAMP RIGHT LICENSE LAMP LICENSE LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL/ STOP/ TURN SIGNAL LAMP LEFT TAIL/ STOP/TURN SIGNAL LAMP MIDLINE MULTI- FUNCTION SWITCH NCA WIRE OTHER OVERDRIVE SWITCH PASSENGER AIR BAG ON/OFF SWITCH PASSENGER CYLINDER LOCK SWITCH PASSENGER DOOR AJAR SWITCH POWER DOOR LOCK MODULE POWER MIRROR SWITCH REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER SWITCH RED WIRE RELAY & FUSE BLOCK RIGHT BACK-UP LAMP RIGHT COMBINATION FLASHER RIGHT REAR SIDE MARKER LAMP RIGHT TAIL/ STOP/TURN SIGNAL LAMP SEAT BELT SWITCH STANDARD STEP BUMPER TAN WIRE TRAILER TOW (CLASS III) (NOT USED) TRAILER TOW CLASS III TRAILER TOW STANDARD VAN CONVERSION ACCESSORY POWER RELAY VIO WIRE W/POWER MIRROR OR MIDLINE/ HIGHLINE WAGON VAN WHT WIRE

025.6 10 3 12 CCD (+) CCD (-) VSS OUT 15 14 (MIDLINE) (HIGHLINE) 21 22 CCD (+) CCD (-) ABS WARNING LAMP IND AIR BAG CONTROL MODULE (BELOW DRIVER SEAT) AIR BAG IND BLK WIRE BLK/DK GRN WIRE BLK/GRY WIRE BLK/LT BLU WIRE BLK/WHT WIRE BLK/YEL WIRE CCD (+) CCD (-) FUEL LVL O/D OFF CCD BUSS (-) CHECK ENGINE IND CHECK GAUGES IND CLOCK CLUSTER ILLUMINATION (4 BULBS) COMPUTER DATA LINES CONTROLLER ANTI-LOCK BRAKE (NEAR WASHER RESERVOIR, ON HYDRAULIC UNIT) COOLANT TEMP GAUGE CRUISE IND DK BLU WIRE DK BLU/PNK WIRE DK BLU/WHT WIRE DK GRN WIRE ECT IN ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM FUEL GAUGE FUSE 1 FUSE 2 FUSE 3 FUSE BLOCK (LEFT END OF DASH) FUSE 7 GRY/YEL WIRE HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HI-BEAM IND HOT AT ALL TIMES HOT IN PARK OR HEAD HOT IN RUN OR START IGNITION SWITCH INSTRUMENT CLUSTER INTERIOR LIGHTS SYSTEM 1 2 3 4 5 6 7 8 9 10 J/C 2 (LEFT SIDE OF DASH) PNK WIRE J/C 4 (LEFT SIDE OF DASH) J/C 2 (LEFT SIDE OF DASH) JUNCTION BLOCK LEFT TURN IND LOCK OFF LOW FUEL WARN IND LOW WASH FLUID IND LT BLU WIRE LT BLU/BLK WIRE LT GRN/RED WIRE LT GRN/YEL WIRE NCA WIRE ODOMETER OIL PRESSURE GAUGE ORG/ WIRE ORG/WHT WIRE OVERDRIVE IND OVERDRIVE SWITCH PARK BRAKE IND PNK EXCEPT BASE BASE WIRE PNK WIRE PNK/WHT WIRE POWER DISTRIBUTION CENTER (NEXT TO BATTERY) POWERTRAIN CONTROL MODULE (CENTER OF FIREWALL) PRNDL RED WIRE RED/GRY WIRE RELAY & FUSE FUSE BLOCK (LEFT END OF DASH) RIGHT TURN IND RUN WIRE SEAT BELT WARN IND SENS RTN SOLID STATE GAUGE AND INDICATOR DRIVER MODULE SPEEDOMETER TAN/BLK WIRE TAN/DK BLU WIRE TRANSMISSION RANGE SENSOR (LEFT SIDE OF TRANSMISSION) TRIP ODOMETER VIO/BRN WIRE VOLTMETER VSS IN OIL PRSS VTSS IND W/ DRL ONLY WHT WIRE WHT/BLK WIRE WHT/ORG WIRE WHT/PNK WIRE YEL WIRE YEL/ORG WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 TRANS RLY OUT A/C COMP RLY A/C CYCLING SWITCH A/C HIGH PRESSURE CUTOUT SWITCH (A/C HIGH PRESSURE LINE) A/C LOW PRESSURE CUTOUT SWITCH (A/C LOW PRESSURE LINE) A/C REQUEST A/C SELECT IN BRAKE SW IN A/C SYSTEM AIRBAG CONTROL MODULE AUTO SHT RLY CRUISE VAC SOL CRUISE VNT SOL OVERDRV IND BATT TEMP SENS GEN IND DRVR MIL IND DRVR BATTERY TEMPER- ATURE SENSOR (BELOW BATTERY) BLK WIRE BLK/LT BLU WIRE BLK/PNK WIRE BLK/RED WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (IN DIS- TRIBUTOR) CRUISE CONTROL SYSTEM CRUISE FEED ASD RELAY SENS TRANS OVERDRV CRUISE SW IN DATA LINK CONNECTOR DK BLU/ORG WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN/ORG WIRE DUTY CYCLE/ EVAP PURGE SOLND (REAR OF INTAKE MANIFOLD) FUEL PMP RLY EVAP SOL DRVR FUSE 8 FUSE BLOCK FUSE 18 GRY/BLK WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER INTAKE AIR TEMPER- ATURE SENSOR (RIGHT SIDE OF INTAKE MANIFOLD) LOW FUEL SENS SCI TRANSMIT PNK WIRE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/WHT WIRE LT GRN/YEL WIRE MIL IND ORG/ WIRE ORG/BLK WIRE ORG/DK BLU WIRE ORG/WHT WIRE OVERDRIVE SWITCH PNK/BLK WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRI- BUTION CENTER POWERTRAIN CONTROL MODULE (RIGHT SIDE SAFETY WALL) PPL/LT BLU WIRE PPL/WHT WIRE RED/WHT WIRE SCI RECEIVE SENSOR GRD GOV PRESS SIG VAR FORCE SOL OVERDRV SOL TCC SOL CTRL TRANS TEMP SNS STARTING/ CHARGING SYSTEM (GEN. LAMP) STOP LAMP SWITCH TAN/BLK WIRE TAN/RED WIRE TAN/YEL WIRE THROTTLE POSITION SENSOR (SIDE OF THROTLLE BODY) TRANS- MISSION RELAY TRANSMISSION SOLENOID ASSEMBLY (TRANSMISSION) VEHICLE SPEED SENSOR 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

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