Mercury Mountaineer I facelift (1997-2001) main light switch Wiring diagrams

6 5 4 3 2 1 IGNITION POWER GROUND DAY/NT MIR OUT RELAY OUTPUT AUXILIARY RELAY BOX 1 (LEFT SIDE OF ENGINE COMPT) BATTERY JUNCTION BOX BLK WIRE BLK/PNK WIRE BLK/YEL WIRE BLU WIRE BRAKE FLUID LEVEL WARNING SWITCH (MOUNTED ON LEFT SIDE OF MASTER CYLINDER) BRN WIRE DAYTIME RUNNING LAMPS MODULE (W/ DRL (LEFT FRONT CORNER OF ENGINE COMPT) DIMMER RELAY DK BLU WIRE DK BLU/LT GRN WIRE DK BLU/ORG WIRE FLASH-TO- PASS DIMMER SWITCH FOG LAMP ISOLATION RELAY FOG LAMP RELAY FOG LAMP SWITCH FUSE 11 FUSE 12 FUSE 27 FUSE 33 FUSE 4 FUSE 36 FUSE 8 FUSE JUNCTION PANEL FUSE JUNCTION PANEL FUSE 11 GENERIC ELECTRONIC MODULE (GEM) (BEHIND CENTER OF DASH) GRY WIRE HEADLAMP RELAY HI LO LO HI RIGHT HEADLAMP LEFT HEADLAMP HI-BEAM IND HOT AT ALL TIMES HOT AT ALL TIMES BATTERY JUNCTION BOX FUSE 4 HOT IN START OR RUN ILLUM INSTRUMENT CLUSTER (REAR OR LEFT FRONT FENDER) (REAR OR RIGHT FRONT FENDER) INSTRUMENT CLUSTER SYSTEM LEFT FOG LAMP RIGHT FOG LAMP LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/YEL WIRE MAIN LIGHT SWITCH MIRROR SYSTEM MULTI- FUNCTION SWITCH OFF HEAD PARK ORG/ WIRE PARK BRAKE SWITCH (ON RIGHT SIDE OF PARKING BRAKE LEVER) PARK LAMP RELAY PASS PASS HI HI LO LO RED WIRE RED/BLK WIRE RED/YEL WIRE RELAY MODULE (BEHIND CENTER OF DASH) REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE (AT LEFT REAR QUARTER PANEL) TAN WIRE TAN/ORG WIRE TAN/WHT WIRE VIO/ORG WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/LT GRN WIRE WHT/PPL WIRE WHT/VIO WIRE YEL WIRE

1 2 3 4 5 6 INDICATOR CONTROL 1000 OHMS 2200 OHMS 4-WHEEL ANTI-LOCK BRAKE SYSTEM 680 OHMS 120 OHMS A/T W/ HIGH SERIES CONSOLE A/T W/O HIGH SERIES CONSOLE AIR BAG SLIDING CONTACT (IN STEERING COLUMN) BACK LIGHT BATTERY JUNCTION BOX BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRAKE PEDAL POSITION (BPP) SWITCH (BEHIND STEERING COLUMN) BRAKE PRESS INPUT GROUND BRAKE PRESSURE SWITCH (LEFT REAR CORNER OF ENGINE COMPT) BRN WIRE CLUTCH PEDAL POSITION (CPP) SWITCH (ON CLUTCH PEDAL ARM) CLUTCH PEDAL POSITION (CPP) SWITCH JUMPER COAST CONTROL MODULE DK GRN/ORG WIRE FUSE FUSE 10 FUSE JUNCTION PANEL GRY WIRE GRY/BLK WIRE GRY/YEL WIRE HORN RELAY (BEHIND RIGHT SIDE OF DASH, IN RPO RELAY BLOCK) HORN SWITCHES HOT AT ALL TIMES HOT IN RUN INSTRUMENT CLUSTER LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/RED WIRE M/T MAIN LIGHT SWITCH NCA WIRE OFF ORG/ WIRE ORG/LT BLU WIRE PNK WIRE REAR AXLE SENSOR (ON AXLE ASSEMBLY) RED WIRE RED/ LT GRN WIRE RED/BLK WIRE REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE (BEHIND LEFT SIDE OF DASH) RESUME SET/ ACCEL SPEED CONT SW IN SPEED CONT SW GND IGNITION SPEED CONTROL INDICATOR LAMP SPEED CONTROL SERVO (IN RIGHT REAR OF ENGINE COMPARTMENT) TAN/LT BLU WIRE VEHICLE SPEED INPUT BRAKE APPLIED IN YEL/ LT GRN WIRE YEL/LT BLU WIRE YEL/LT GRN WIRE

ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM (RAP MODULE) (1999 ONLY) BATTERY JUNCTION BOX (LEFT SIDE OF ENGINE COMPT) BLK WIRE BRAKE PEDAL POSITION SWITCH (ABOVE BRAKE PEDAL) BRN WIRE BRN/YEL WIRE DAY/NIGHT MIRROR/ AUTOLAMP SENSOR (MOUNTED IN REARVIEW MIRROR) DIMMER RELAY (IN RELAY MODULE) DK BLU/WHT WIRE DK GRN WIRE EXPLORER ONLY FUSE 10 FUSE 11 FUSE 13 FUSE 21 FUSE JUNCTION PANEL (LEFT SIDE OF VEHICLE, BELOW DASH) HAZARD HEAD HEADLAMP RELAY (IN RELAY MODULE) HIGH MOUNTED STOP LAMP ASSEMBLY HOT AT ALL TIMES HOT IN RUN IGN (RUN) INSTRUMENT CLUSTER LAMPS ON LEFT FRONT PARK/ TURN LAMPS LEFT FRONT SIDE MARKER LAMP LEFT LICENSE LAMP LEFT TURN SIGNAL LAMP (REAR) LEFT REAR STOP/ PARK LAMP LEFT TURN INDICATOR LT BLU WIRE LT GRN WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/WHT WIRE MAIN LIGHT SWITCH MULTI- FUNCTION NCA WIRE NORMAL OFF ORG/LT BLU WIRE ORG/YEL WIRE PARK PARK LAMP RELAY (IN RELAY MODULE) REAR RED/WHT WIRE RIGHT FRONT PARK/ TURN LAMPS RIGHT FRONT SIDE MARKER LAMP RIGHT LICENSE LAMP RIGHT REAR STOP/ PARK LAMP RIGHT TURN INDICATOR RIGHT TURN SIGNAL LAMP SENSOR OUTPUT SWITCH TAN/WHT WIRE TRAILER TOW PARK LAMP RELAY (W/ TRAILER TOW PACKAGE ONLY) TRAILER/CAMPER ADAPTER CIRCUIT (STOP/TURN FUSES) TURN LEFT TURN RIGHT TURN/HAZARD CONTROL TURN/HAZARD FLASHER VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/RED WIRE WHT/VIO WIRE

1 2 3 4 5 6 LOW BEAM IN BATT IN IGN IN GROUND HIGH BEAM IN PARK BRAKE IN AUXILIARY RELAY BOX 1 (LEFT SIDE OF ENGINE COMPT) BATTERY JUNCTION BOX BLK WIRE BLK/YEL WIRE BRAKE FLUID LEVEL WARNING SWITCH (MOUNTED ON LEFT SIDE OF MASTER CYLINDER) BRN WIRE DAYTIME RUNNING LAMPS MODULE (W/ DRL (LEFT FRONT CORNER OF ENGINE COMPT) DIMMER SWITCH DK BLU WIRE DK BLU/LT GRN WIRE FLASH TO PASS FOG LAMP ISOLATION RELAY FOG LAMP RELAY FOG LAMP SWITCH FUSE 11 FUSE 4 FUSE 12 FUSE 27 FUSE 33 FUSE 4 FUSE JUNCTION PANEL FUSE JUNCTION PANEL FUSE 8 GENERIC ELECTRONIC MODULE GRY WIRE HI BEAM INDICATOR HI LO RIGHT HEADLAMP HOT AT ALL TIMES ILLUM INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT FOG LAMP LO HI LEFT HEADLAMP LT BLU/BLK WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE LT GRN/RED WIRE LT GRN/YEL WIRE MAIN LIGHT SWITCH MULTI- FUNCTION SWITCH OFF HEAD PARK ORG/ WIRE PARK BRAKE SWITCH (ON RIGHT SIDE OF PARKING BRAKE LEVER) PARK LAMP RELAY PASS HI LO RED WIRE RED/BLK WIRE RELAY MODULE (BEHIND CENTER OF DASH) REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE (AT LEFT REAR QUARTER PANEL) RIGHT FOG LAMP TAN WIRE TAN/ORG WIRE TAN/WHT WIRE VIO WIRE VIO/ORG WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/LT GRN WIRE YEL WIRE

AIRBAG SLIDING CONTACT CLOCK SPRING ANTI-THEFT SYSTEM ASHTRAY ILLUM- INATION BLK WIRE BRN WIRE CENTRAL TIMER MODULE (CTM)/ CLOCK- SPRING COMPASS/OUTSIDE AIR TEMPERATURE MODULE (BEHIND RIGHT SIDE OF DASH) DAY/NIGHT MIRROR/ AUTOLAMP SENSOR RELAY CTRL ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE FRONT PANEL ILLUMINATION FOG LAMP SWITCH LIFTGATE WIPER/ WASHER SWITCH FUNCTION SELECTOR SWITCH ASSEMBLY GENERIC ELECTRONIC MODULE (GEM) (BEHIND CENTER OF DASH) HEAD PARK HEADLAMP RELAY HEATED REAR WINDOW SWITCH HOT AT ALL TIMES BATTERY JUNCTION BOX FUSE 11 ILLUMINATION ILLUMINATION (2) INSTRUMENT CLUSTER LEFT FRONT POWER DOOR LOCK SWITCH LEFT FRONT POWER WINDOW SWITCH LEFT REAR POWER WINDOW SWITCH RIGHT REAR POWER WINDOW SWITCH MAIN LIGHT SWITCH MODE SWITCH NCA WIRE OFF PARK LAMP RELAY PARKING AID DISABLE SWITCH PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RELAY MODULE (BEHIND CENTER OF DASH) RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT FRONT POWER WINDOW SWITCH TAN WIRE TAN/WHT WIRE W/O EATC W/O HIGH SERIES CONSOLE WHT WIRE WHT/PPL WIRE

BATTERY SAVER RELAY BLK WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BRN WIRE COURTESY LAMPS CIRCUIT DIMMER MODULE (LEFT SIDE OF STEERING COLUMN) DIMMER RELAY DIMMING INDICATORS (POWER) ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE FUSE 11 FUSE 26 FUSE JUNCTION PANEL HEADLAMP RELAY HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT EXTERIOR REAR VIEW MIRROR LT BLU WIRE LT GRN WIRE LT GRN/ORG WIRE MAIN LIGHT SWITCH MESSAGE CENTER INSTRUMENT ILLUMINATION MESSAGE CENTER SWITCH ASSEMBLY NCA WIRE NORM OFF ON OFF NORM ORG/ WIRE PARK OFF HEAD PNK WIRE PPL RADIO REAR INTEGRATED CONTROL PANEL RED WIRE RED/BLK WIRE RED/YEL WIRE RELAY MODULE (BEHIND CENTER OF DASH) RIGHT EXTERIOR REAR VIEW MIRROR SOLID STATE TAN/WHT WIRE TAN/YEL WIRE W/ HIGH SERIES CONSOLE ONLY WHT WIRE WHT/PPL WIRE

6 11 14 15 IGN BATTERY IGN IGN BLK WIRE BLK/PNK WIRE BRN/LT BLU WIRE CENTRAL JUNCTION BOX (BEHIND CENTER OF DASH) FUSE 10 FUSE 20 FUSE 25 FUSE 28 GRY WIRE GRY/RED WIRE GRY/YEL WIRE HEAD OFF PARK HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR ACC HOT IN START INSTRUMENT CLUSTER KEY WARNING SWITCH LEFT FRONT DOOR AJAR SWITCH LEFT LIFTGATE AJAR SWITCH LEFT REAR DOOR AJAR SWITCH LIFTGATE WIPER DISABLE SWITCH LT GRN/YEL WIRE MAIN LIGHT SWITCH NCA WIRE PARK LAMP RELAY (IN RELAY MODULE) PNK WIRE PNK/LT BLU WIRE RED WIRE RED/BLK WIRE RIGHT LIFTGATE AJAR SWITCH RIGHT REAR DOOR AJAR SWITCH RIGHT FRONT DOOR AJAR SWITCH SEAT BELT IND SEAT BELT WARNING SWITCH (IN SEAT BELT BUCKLE) WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE