Mercury Monterey VIII (2003-2007) vref Wiring diagrams

1 2 3 4 GND VPWR RX TX ANTI-THEFT HOOD SWITCH (AT LEFT REAR SIDE OF ENGINE COMPT) ANTI-THEFT INHIBIT SWITCH (ON LEFT FRONT DOOR) BLK WIRE BLU WIRE DK BLU WIRE GRY/ORG WIRE HOT AT ALL TIMES FUSE 9 HOT IN RUN OR START FUSE 19 INSTRUMENT CLUSTER SYSTEM LOW CURRENT BOARD LT BLU WIRE LT GRN WIRE NCA WIRE ORG/RED WIRE PATS IND SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) VIO WIRE VIO/ORG WIRE VREF WHT WIRE WHT/LT GRN WIRE

2069 2070 1255 476 3050 3051 SEATS SYSTEM AMBIENT AIR TEMPERATURE SENSOR (AT RIGHT FRONT SIDE OF ENGINE COMPARTMENT) BLK WIRE BLK/LT BLU WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/LT GRN WIRE BRN/ORG WIRE BRN/YEL WIRE BUSSED ELECTRICAL CENTER (BEC) (AT LEFT SIDE COMPUTER DATA LINES SYSTEM DRIVER TEMPERATURE BLEND DOOR ACTUATOR (BEHIND LEFT SIDE OF DASH) ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE (CENTER OF DASH) FRESH/RECIRCULATION DOOR ACTUATOR FRONT BLOWER MOTOR FRONT BLOWER MOTOR RELAY (LEFT KICK PANEL) FRONT BLOWER MOTOR SPEED CONTROLLER (BEHIND RIGHT FUSE 12 FUSE 14 FUSE 8 GROUND GRY WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/YEL WIRE HARNESS, NEAR BREAKOUT TO PASSENGER BLEND DOOR ACTUATOR) HIGH IND STATUS LOW IND STATUS TEMP REQUEST HOT AT ALL TIMES HOT IN RUN LOW CURRENT BOARD LT BLU WIRE LT BLU/BLK WIRE LT BLU/ORG WIRE LT BLU/WHT WIRE LT GRN WIRE MODE DOOR ACTUATOR (BEHIND CENTER OF DASH) OF ENGINE COMPT) ORG/ WIRE ORG/BLK WIRE ORG/LT BLU WIRE PASSENGER TEMPERATURE BLEND DOOR ACTUATOR (BEHIND RIGHT SIDE OF DASH) PNK WIRE PNK/LT BLU WIRE PNK/WHT WIRE PWR PWR PWR PWR VREF RED WIRE RED/LT GRN WIRE RED/WHT WIRE SEATS SYSTEM SHIFT INTERLOCK SYSTEM SIDE OF DASH) SIG RTN SW GND VREF SIG RTN VREF PWR PWR SIGNAL SIGNAL SIGNAL SIG RTN VPWR SCP + SCP - SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) TAN/ORG WIRE UBP VIO WIRE VIO/LT GRN WIRE VIO/ORG WIRE VREF WHT WIRE WHT/LT BLU WIRE WHT/ORG WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/LT BLU WIRE YEL/LT GRN WIRE

A/C CLUTCH FIELD COIL (ON A/C COMPRESSOR) A/C CLUTCH RELAY A/C COMPRESSOR CLUTCH DIODE A/C PRESSURE TRANSDUCER SENSOR AUXILIARY RELAY BLK WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE BUSSED ELECTRICAL CENTER (BEC) (AT LEFT SIDE OF ENGINE COMPT) CYLINDER HEAD TEMPERATURE SENSOR (REAR OF LEFT CYLINDER HEAD) DROPPING RESISTOR (LEFT FRONT OF ENGINE COMPARTMENT) ENGINE CONTROLS SYSTEM ENGINE COOLING FAN CIRCUIT BREAKER ENGINE COOLING FAN MOTOR 1 (BEHIND LEFT SIDE OF RADIATOR) ENGINE COOLING FAN MOTOR 2 (BEHIND RIGHT SIDE OF RADIATOR) ENGINE COOLING FAN RELAY #1 ENGINE COOLING FAN RELAY #2 ENGINE COOLING FAN RELAY #3 ENGINE COOLING FAN RELAY 4 ENGINE COOLING FAN RELAY 5 FUSE 1 FUSE 2 BOX 1 (RIGHT FRONT OF ENGINE COMPT) FUSE 3 FUSE 2 FUSE 40 FUSE 42 FUSE 43 GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN START OR RUN LT BLU WIRE LT GRN WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE ORG/ WIRE ORG/BLK WIRE ORG/LT BLU WIRE ORG/LT GRN WIRE PNK/LT BLU WIRE PNK/YEL WIRE POWERTRAIN CONTROL MODULE (PCM) (RIGHT REAR OF ENGINE COMPARTMENT) RED WIRE RED/ORG WIRE SIG RTN TAN/LT GRN WIRE VIO WIRE VIO/ORG WIRE VREF W/ TRAILER TOW W/O TRAILER TOW WHT WIRE YEL WIRE YEL/BLK WIRE YEL/LT GRN WIRE YEL/RED WIRE

BLK WIRE BOTTOM OF LIFTGATE) GROUND JOINT CONNECTOR 2 (BEHIND CENTER OF DASH) LEFT EXTERIOR REAR VIEW MIRROR LEFT FOOTWELL COURTESY LAMP LEFT SLIDING DOOR ENTRY LAMP LIFTGATE AJAR SWITCH LOW CURRENT BOARD POWER LIFTGATE MODULE PWR PWR PWR PWR PWR PWR RIGHT EXTERIOR REAR VIEW MIRROR RIGHT FOOTWELL COURTESY LAMP RIGHT SLIDING DOOR ENTRY LAMP SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) TAN WIRE VIO/WHT WIRE VREF W/ POWER LIFTGATE W/O POWER LIFTGATE YEL/WHT WIRE

10 9 8 GROUND SW OUT 15 16 SCP+ SCP- 32 6 18 3 VPWR ABS CONTROL MODULE (UNDER DRIVER'S SEAT) ABS TEST CONNECTOR (NEAR MASTER CYLINDER) AIR BAG SLIDING CONTACT (BEHIND DRIVER SIDE OF DASH) ANTI-THEFT SYSTEM BLK WIRE BRAKE PEDAL POSITION SWITCH (BEHIND DASH, TOP OF BRAKE PEDAL) BRAKE PRESSURE BUSSED ELECTRICAL CENTER (BEC) (AT LEFT SIDE OF ENGINE COMPT) DK BLU WIRE DK GRN WIRE DK GRN/ORG WIRE FUSE HORNS SYSTEM HOT AT ALL TIMES HOT IN START OR RUN ILLUM JOINT CONNECTOR 2 (BEHIND CENTER OF DASH) JOINT CONNECTOR 4 (BELOW LEFT SIDE OF DASH) LT BLU WIRE LT BLU/BLK WIRE LT BLU/PNK WIRE LT BLU/RED WIRE LT GRN WIRE LT GRN/RED WIRE ORG/ WIRE PNK WIRE PNK/LT BLU WIRE POWERTRAIN CONTROL MODULE (PCM) (RIGHT REAR OF ENGINE COMPT) RED WIRE RED/LT GRN WIRE REST REST COAST RESUME SCP - SCP + SCP+ SET ACCELERATE/ SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) SPEED CONTROL OFF SPEED CONTROL ON HORN SPEED CONTROL SERVO (AT LEFT SIDE OF ENGINE COMPARTMENT) STEERING WHEEL RADIO SWITCH STEERING WHEEL/SPEED CONTROL SWITCH SWITCH (AT LEFT REAR SIDE OF ENGINE COMPT) TAN WIRE TAN/ORG WIRE VPWR SIG RTN 6 5 4 3 2 1 VREF

48 LT LT 51 PNK/ DK WIRE AUTO BLK WIRE BLK/LT GRN WIRE BLU WIRE BRAKE PEDAL POSITION SWITCH BRAKE SHIFT INTERLOCK (ON STEERING COLUMN) DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/LT GRN WIRE DK PNK/ PNK WIRE FUSE 15 FUSE 58 FUSE 62 FUSE 64 FUSE 65 GRN WIRE GROUND DISTRIBUTION SYSTEM GROUND DISTRIBUTION SYSTEM (W/O MEMORY) (W/ MEMORY) 4 5 GRY WIRE GRY/LT BLU WIRE HAZARD SWITCH HEAD HIGH MOUNTED STOPLAMP HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT CLUSTER SYSTEM JOINT CONNECTOR 1 (BEHIND CENTER OF DASH) INSTRUMENT CLUSTER JOINT CONNECTOR 2 (BEHIND CENTER OF DASH) LAMP LEFT EXTERIOR REAR VIEW MIRROR LEFT FRONT AUXILIARY LEFT FRONT COR- LEFT FRONT PARK/TURN LEFT FRONT SIDE LAMP LEFT REAR PARK/ STOP/ TURN LAMP LICENSE LAMPS LOCK OFF LOW CURRENT BOARD LT BLU WIRE LT GRN WIRE LT LT LT LT LT MAIN LIGHT SWITCH MULTI- FUNCTION SWITCH RH TURN SIG LH TURN SIG NERING LAMP OFF ORG/ WIRE PARK PARK LAMP PNK WIRE PNK/ 9 10 SCP- SCP+ WIRE PNK/ DK WIRE POWER DISTRIBUTION SYSTEM PWR PWR PWR PWR PWR PWR PWR PWR PWR GND GND PWR PWR VBATT RED WIRE RED/LT BLU WIRE RED/WHT WIRE RIGHT FRONT AUXILIARY PARK LAMP RIGHT FRONT CORNERING LAMP RIGHT FRONT PARK/ TURN LAMP RIGHT FRONT SIDE LAMP RIGHT REAR PARK/ STOP/ TURN LAMP RIGHT EXTERIOR REAR VIEW MIRROR RUN WIRE SCP- SCP+ VREF SIG RTN VREF VREF TAN WIRE TAN/ORG WIRE TAN/RED WIRE TAN/WHT WIRE TRACTION ASSIST/ PARKING AID DISABLE SWITCH VBATT VBATT VBATT VBATT VPWR VIO WIRE VREF VREF PWR VREF VREF W/ CORNERING LAMPS W/O CORNERING LAMPS WHT WIRE WHT/RED WIRE YEL WIRE

1 LO 1 LO RIGHT HEADLAMP AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM AUTOLAMP/ SUNLOAD SENSOR (NEAR TOP CENTER OF DASH) BLK WIRE BLK/LT BLU WIRE BLU WIRE BRN WIRE BRN/YEL WIRE BUSSED ELECTRICAL CENTER (BEC) (AT LEFT SIDE OF ENGINE COMPARTMENT) DK BLU WIRE DK BLU/LT GRN WIRE DK GRN WIRE FOG LAMP IND FOG LAMP RELAY FUSE 45 FUSE 48 FUSE 62 FUSE 65 GND GND GRN WIRE HEAD AUTOLAMP ON HI LO HIGH BEAM RELAY HOT AT ALL TIMES ILLUMINATION INSTRUMENT CLUSTER JOINT CONNECTOR 1 (BEHIND LEFT SIDE OF DASH) JOINT CONNECTOR 2 (BEHIND CENTER OF DASH) LAMPS FOG LEFT FRONT FOG LAMP LEFT HEADLAMP HI LT BLU WIRE LT GRN WIRE MAIN LIGHT SWITCH MICROPROCESSOR MULTI- FUNCTION SWITCH OFF OFF PARK ORG/ WIRE ORG/RED WIRE PASS PATS IND PNK PNK WIRE PNK/LT BLU WIRE PWR PWR RED WIRE RED/PNK WIRE RIGHT FRONT FOG LAMP RLY CTRL SCP+ SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) LOW CURRENT BOARD TAN WIRE TAN/ORG WIRE VBATT VBATT SIG RTN VREF INPUT VREF SCP+ SCP- VIO WIRE VREF VREF VREF VREF WHT WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

1 LO 1 LO RIGHT HEADLAMP BLK WIRE BLK/LT BLU WIRE BLU WIRE BUSSED ELECTRICAL CENTER (BEC) (AT LEFT SIDE OF ENGINE COMPARTMENT) DK BLU WIRE DK GRN WIRE FOG LAMP IND FOG LAMP RELAY FUSE 45 FUSE 48 FUSE 62 FUSE 65 GND GND GRN WIRE HEAD HI LO HIGH BEAM RELAY HOT AT ALL TIMES ILLUMINATION INSTRUMENT CLUSTER JOINT CONNECTOR 1 (BEHIND LEFT SIDE OF DASH) JOINT CONNECTOR 2 (BEHIND CENTER OF DASH) LAMPS FOG LEFT FRONT FOG LAMP LEFT HEADLAMP HI LOW CURRENT BOARD PWR PWR LT BLU WIRE LT GRN WIRE MAIN LIGHT SWITCH MULTI- FUNCTION SWITCH OFF ORG/ WIRE PARK PASS PNK WIRE PNK/LT BLU WIRE RED WIRE RED/PNK WIRE RIGHT FRONT FOG LAMP RLY CTRL SCP - SCP + SCP+ SIG RTN VREF VREF SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) TAN WIRE TAN/ORG WIRE VBATT VIO WIRE VREF WHT WIRE WHT/RED WIRE YEL WIRE

AIR BAG IND AMBIENT AIR TEMPERATURE SENSOR (AT RIGHT FRONT SIDE OF ENGINE COMPARTMENT) ANTI-THEFT SYSTEM AIR CONDITIONING SYSTEM BLK WIRE BLK/LT BLU WIRE BLK/YEL WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH (AT LEFT REAR SIDE OF ENGINE COMPARTMENT) BRN/ORG WIRE CHARGE IND CLOCK COMPASS DATA + COMPUTER DATA LINES SYSTEM DK BLU WIRE ENGLISH/ METRIC SELECT FUEL GAUGE FUEL TANK UNIT (IN FUEL TANK) FUSE 11 FUSE 16 FUSE 19 FUSE 8 GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/ORG WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN START OR RUN ILLUMINATION J/C 1 (BEHIND LEFT SIDE OF DASH) JOINT CONNECTOR 2 (BEHIND CENTER OF DASH) KEY WARNING SWITCH LOW CURRENT BOARD LOW OIL PRESSURE IND LOW BRAKE FLUID LEVEL/ PARK BRAKE IND LT BLU WIRE LT BLU/BLK WIRE LT BLU/ORG WIRE LT BLU/WHT WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/VIO WIRE MESSAGE CENTER SWITCH MICROPROCESSOR INSTRUMENT CLUSTER NAVIGATION SYSTEM NCA WIRE OIL PRESSURE SWITCH (AT LOWER LEFT FRONT OF ENGINE) ORG/ WIRE OVERHEAD CONSOLE CIRCUIT PARKING BRAKE SWITCH (AT BASE OF PARK BRAKE HANDLE) PNK WIRE PNK/ PNK/ LT WIRE PNK/LT BLU WIRE RED WIRE RED/LT GRN WIRE RED/YEL WIRE RESET+ SAFETY BELT IND MESSAGE CENTER SW, INPUT KEY WARNING SW SCP+ SCP- PWR SIG RTN SIG RTN (3 BULBS) ILLUM SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TAN/LT GRN WIRE TAN/ORG WIRE TRACTION CTRL OVERRIDE, INPUT VBATT VBATT PWR GND VIO WIRE VPWR VREF WARNING SYSTEM WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/ORG WIRE WHT/PNK WIRE WHT/YEL WIRE WIPER/WASHER SYSTEM YEL WIRE

BLK WIRE BLK/LT BLU WIRE COMPASS, THERMOMETER FUSE 13 FUSE 16 GRN WIRE HOT IN HOT IN START OR RUN ILLUM ILLUMINATION INSTRUMENT CLUSTER LEFT POWER SLIDING DOOR SWITCH LEFT SIDE POWER SLIDING DOOR MODULE VREF LOW CURRENT BOARD LT BLU/WHT WIRE LT GRN WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/YEL WIRE MAP READING LAMPS ORG/ WIRE OVERHEAD CONSOLE (FRONT CENTER TOP OF PASSENGER COMPARTMENT) POWER LIFTGATE MODULE ENABLE ON/OFF POWER LIFTGATE OPEN/CLOSE SWITCH PWR REAR POWER SLIDING DOOR SWITCH RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT POWER SLIDING DOOR SWITCH RIGHT SIDE POWER SLIDING DOOR MODULE (ABOVE RIGHT REAR WHEELWELL) VREF RUN WIRE SIG RTN SMART JUNCTION BOX (SJB) (BEHIND LEFT SIDE OF DASH) VIO WIRE VIO/WHT WIRE VPWR VREF WHT WIRE WHT/BLK WIRE WHT/LT GRN WIRE WHT/ORG WIRE YEL WIRE