Car Wiring Diagrams for Trailer tow circuit, late production for Mercury Mountaineer II (2001-2005)

1 2 3 4 TRAILER TOW CONNECTOR BACK-UP LAMPS CIRCUIT BATTERY CHARGE TRAILER TOW RELAY BATTERY JUNCTION BOX (BJB) (LEFT SIDE OF ENGINE COMPT, AT FENDER APRON) BLK WIRE BLK/LT GRN WIRE BLK/PNK WIRE BLK/YEL WIRE BRAKE PEDAL POSITION SWITCH (ABOVE BRAKE PEDAL) BRN WIRE BRN/WHT WIRE BRN/YEL WIRE BUMPER) CENTRAL JUNCTION BOX (CJB) (BEHIND LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/YEL WIRE EXTERIOR LAMPS CIRCUIT FUSE 13 FUSE 20 FUSE 23 FUSE 25 FUSE 27 GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START J/C 3 LEFT TURN TRAILER TOW RELAY LT GRN WIRE LT GRN/RED WIRE ORG/ WIRE PARKING LAMP TRAILER TOW RELAY PNK/WHT WIRE REAR AUXILIARY JUNCTION BOX (AJB) (RIGHT "D" PILLAR) RED WIRE REVERSING LAMP TRAILER TOW RELAY RIGHT TURN TRAILER TOW RELAY TAN/BLK WIRE TRAILER ELECTRONIC BRAKE CONTROL MODULE (UNDER LEFT SIDE OF DASH PANEL) TRAILER TOW CONNECTOR (CLASS III/IV) (AT REAR OF VEHICLE, BELOW WHT WIRE YEL WIRE