Mercury Mountaineer I facelift (1997-2001) powertrain control module (pcm) (mounted through firewall) Wiring diagrams

13 10 2 DATA LINK CONNECTOR (DLC) (PARTIAL) (BEHIND LEFT SIDE OF DASH) BACK-UP LAMPS, REAR WINDOW DEFROST RELAY BATTERY JUNCTION BOX BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE PEDAL POSITION SWITCH (BEHIND STEERING COLUMN) BRN WIRE BRN/WHT WIRE DATA DLC (-) DLC (+) PWR GND CASE GND DK BLU/WHT WIRE DK BLU/YEL WIRE ELECTRONIC PRESSURE CONTROL (EPC) SOLENOID ENG CONTROLS, A/C RELAY, FUEL PUMP RLY ENGINE CONTROLS SYSTEM FUEL INJECTORS FUSE 10 FUSE 13 FUSE 19 FUSE 27 FUSE 6 FUSE 9 FUSE JUNCTION PANEL (LEFT SIDE OF DASH) GRY WIRE GRY/BLK WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN RUN HOT IN START OR RUN IGNITION COILS, RADIO NOISE CAPACITOR INSTRUMENT CLUSTER LT BLU WIRE LT BLU/BLK WIRE LT BLU/ORG WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE OD OFF ORG/ WIRE ORG/BLK WIRE ORG/YEL WIRE OUTPUT SHAFT SPEED SENSOR (LEFT REAR OF TRANSMISSION) PASSIVE ANTI-THEFT MODULE PCM POWER DIODE PCM POWER RELAY PNK/ MALFUNCTION INDICATOR LAMP (MIL) (CHECK ENGINE) WIRE PNK/LT BLU WIRE PNK/LT GRN WIRE POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) REAR AXLE SPEED SENSOR (ON AXLE ASSEMBLY) RED WIRE RED/LT GRN WIRE SHIFT SOLENOIDS (SS) TAN WIRE TAN/BLK WIRE TAN/ORG WIRE TAN/WHT WIRE TCS TFT ECT THROTTLE POSITION (TP) SENSOR (ATTACHED TO THROTTLE BODY) TORQUE CONVERTER CLUTCH (TCC) SOLENOID TRANSMISSION CONTROL INDICATOR LAMP (TCIL) TRANSMISSION CONTROL SWITCH (TCS) TRANSMISSION FLUID TEMPERATURE SENSOR VIO WIRE VIO/ORG WIRE VIO/PNK WIRE WHT WIRE WHT/BLK WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

15 16 41 69 86 DATA - DATA + A/C HPCS INPUT A/C WOT OUTPUT A/C CPS A/C COMPRESSOR CLUTCH SOLENOID (ON LEFT SIDE OF ENGINE COMPARTMENT) A/C PRESSURE CUTOFF SWITCH (NEAR A/C COMPRESSOR CLUTCH SOLENOID) A/C RELAY BATTERY JUNCTION BOX (LEFT SIDE OF ENGINE COMPARTMENT, AT FENDER APRON) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/ORG WIRE CONTROL MODULE DATA LINK CONNECTOR (DLC) (PARTIAL) (BEHIND LEFT SIDE OF DASH) FUSE 1 FUSE 35 FUSE JUNCTION PANEL GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES LT BLU WIRE LT BLU/ORG WIRE OFF LOW MED ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE PCM POWER RELAY PNK WIRE PNK/LT BLU WIRE PNK/WHT WIRE PNK/YEL WIRE POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) PPL PPL 2 3 4 5 REAR BLOWER MOTOR (IN REAR OF CENTER CONSOLE) REAR BLOWER MOTOR RELAY (BEHIND RIGHT SIDE DASH) REAR BLOWER MOTOR RESISTOR (IN DASH CONSOLE) REAR INTEGRATED CONTROL PANEL (RICP) (REAR BLOWER SWITCH) RED WIRE RED/ORG WIRE RED/YEL WIRE TAN/ORG WIRE WHT WIRE YEL WIRE

AUTOMATIC RIDE CONTROL (ARC) MODULE (LEFT CENTER OF DASH) BLK WIRE BLK/WHT WIRE DLC (REPROGRAM POWER SUPPLY) DLC BUS (-) ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE (BEHIND CENTER OF DASH) FUSE 5 FUSE JUNCTION PANEL GENERIC ELECTRONIC MODULE (GEM) (BEHIND CENTER OF DASH) HOT AT ALL TIMES LT BLU WIRE LT BLU/WHT WIRE MEMORY SEAT MODULE (BELOW LEFT FRONT SEAT) ORG/ WIRE PNK WIRE PNK/LT BLU WIRE POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE RESTRAINTS CONTROL MODULE (RIGHT SIDE OF DASH) TAN WIRE TAN/ORG WIRE VIO WIRE WHT WIRE

21 22 23 24 25 26 AIR SUS ON/OFF SW STEERING SENSOR 27 28 29 30 31 32 REAR GATE SOL 4-WHEEL ANTI- AIR SUSPENSION CONTROL COMPRESSOR ASSEMBLY (AT REAR OF VEHICLE) AIR SUSPENSION CONTROL MODULE (LEFT CENTER OF DASH) AIR SUSPENSION CONTROL RELAY AIR SUSPENSION SWITCH (REAR OF VEHICLE) ARC ACCEL SIG AUXILIARY RELAY BOX 1 (LEFT SIDE OF ENGINE COMPARTMENT) BATTERY JUNCTION BOX (LEFT SIDE OF ENGINE COMPARTMENT, AT FENDER APRON) BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (LEFT SIDE OF DASH) DK BLU/YEL WIRE DK GRN/LT GRN WIRE DK GRN/YEL WIRE FUSE 8 FUSE 9 GROUND GRY WIRE GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES ISO LINK VENT SOL OUTPUT PNK WIRE LT BLU/BLK WIRE LT BLU/PNK WIRE LT BLU/WHT WIRE NCA WIRE ORG/BLK WIRE ORG/RED WIRE PNK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) REAR FILL SOLENOID AIR SUS CONTROL RED WIRE RED/LT GRN WIRE STEERING RATE SENSOR (IN STEERING COLUMN) SUPPORT) SYSTEM MODULE (LEFT SIDE OF ENGINE COMPT) VIO/ORG WIRE WARNING SIGNAL WHT/ BLK WIRE

A/C COMPRESSOR CLUTCH SOLENOID (ON LEFT SIDE OF ENGINE COMPARTMENT) A/C PRESSURE CUTOFF SWITCH (NEAR A/C COMPRESSOR CLUTCH SOLENOID) A/C RELAY (IN POWER DISTRIBUTION BOX) BATTERY JUNCTION BOX FUSE 2 BLEND DOOR ACTUATOR (BEHIND RIGHT SIDE OF DASH, TOP OF A/C PLENUM) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (RIGHT SIDE OF ENGINE COMPARTMENT) BLOWER MOTOR RELAY (IN POWER DISTRIBUTION BOX) BLOWER MOTOR RESISTOR (NEAR BLOWER MOTOR) BLOWER MOTOR SWITCH BRN WIRE DEF/FLR DEFROST DK GRN WIRE FUNCTION SELECTOR SWITCH ASSEMBLY FUSE 10 FUSE 2 FUSE 6 FUSE JUNCTION PANEL GRN WIRE GRY WIRE HI MED HI MED LO HIGH SPEED BLOWER RELAY (IN AUXILIARY RELAY BOX 2) HOT AT ALL TIMES HOT AT ALL TIMES POWER DISTRIBUTION BOX FUSE 1 HOT IN RUN ILLUMI- NATION LOW OFF LT BLU WIRE LT BLU/ORG WIRE LT GRN WIRE LT GRN/WHT WIRE MED NEAR BREAKOUT TO NORM A/C MAX A/C OFF PANEL OFF PANEL PANEL/FLOOR NORM A/C FLOOR MAX A/C DEF/FLR DEFROST ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE PANEL/FLOOR FLOOR PCM POWER RELAY (IN POWER DISTRIBUTION BOX) PNK PNK WIRE PNK WIRE PNK/WHT WIRE PNK/YEL WIRE POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) PPL PPL 69 86 REAR BLOWER MOTOR (IN REAR OF CENTER CONSOLE) REAR BLOWER MOTOR RESISTOR (IN DASH CONSOLE) REAR INTEGRATED CONTROL PANEL (RICP) (REAR BLOWER SWITCH) RED WIRE RED/ORG WIRE RED/YEL WIRE SOLID STATE SUPPLEMENTAL RESTRAINTS SYSTEM TEMPERATURE CONTROL POTENTIOMETER WARM COLD WHT WIRE YEL WIRE YEL/RED WIRE

357 1017 360 11 1145 1143 570 96 (2000) AIR CONDITIONING SYSTEM (HTR-A/C ASSY) AIR SUSP INPUT BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN/ORG WIRE BRN/PNK WIRE CRANKSHAFT POSITION SENSOR (LOWER FRONT OF ENGINE COMPT) CRANKSHAFT POSITION SENSOR SHIELD DATA LINK (-) DATA LINK (+) DATA LINK CONNECTOR (BEHIND LEFT SIDE OF DASH) 10 2 DK BLU WIRE DK BLU/YEL WIRE DK GRN/VIO WIRE DK GRN/YEL WIRE ELECTRONIC SUSPENSION SYSTEM FUEL FLOW RATE FUEL GUAGE SEND DATA LINK FUSE 10 FUSE 19 FUSE 27 FUSE JUNCTION PANEL (LEFT SIDE OF VEHICLE, BELOW DASH) GEM CHK FUEL CAP EVR CTRL TACHOMETER GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START IGNITION COIL (ABOVE VALVE COVER) INSTRUMENT CLUSTER SYSTEM KNOCK SENS LT BLU/BLK WIRE LT BLU/PNK WIRE LT GRN/RED WIRE MAF SIG RTN TFT SENS ECT SENS MAF SENS FUEL PUMP REL A/C NCA WIRE ORG/BLK WIRE ORG/YEL WIRE OSS + PCM POWER DIODE PNK/LT BLU WIRE PNK/LT GRN WIRE POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) PWR GND CHASSIS GND IGN COIL SHIFT SOL A SHIFT SOL D TCS INPUT PWR GND IGN COIL RADIO NOISE CAPACITOR (LEFT OF IGNITION COIL) RED WIRE RED/LT BLU WIRE RED/LT GRN WIRE SPARK PLUGS TAN/LT BLU WIRE TAN/LT GRN WIRE TAN/ORG WIRE TAN/WHT WIRE TAN/YEL WIRE TO DTR SENSOR (DIAGRAM 4 OF 4) TRANSMISSION CONTROL SWITCH VIO WIRE VIO/ORG WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1999, EARLY PRODUCTION 2000, 2001 270 OHMS 4-WHEEL ANTI-LOCK BRAKE SYSTEM AIR CONDITIONING SYSTEM (A/C PRESS SW) AIR CONDITIONING SYSTEM (A/C RELAY) BATTERY JUNCTION BOX (LEFT SIDE OF ENGINE COMPT, AT FENDER APRON) FUSE 6 BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT POSITION (CMP) SENSOR (REAR OF ENGINE) CAN VENT SOL DK BLU/ORG WIRE DK GRN/WHT WIRE DPFE SENS FROM DTR SENSOR (DIAGRAM 1 OF 4) FT PRESS SENS FUEL INJ 6 FUEL INJ 4 FUEL INJ 2 FUSE 13 FUSE JUNCTION PANEL (LEFT SIDE OF VEHICLE, BELOW DASH) FUSE 9 GRY WIRE GRY/BLK WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN HEATED OXYGEN (LEFT RADIATOR SUPPORT) HEATER CTRL HOT AT ALL TIMES IAC SOL TSS CMP SENS A/C PRESS LATE PRODUCTION 2000, 2001 LT BLU/ORG WIRE LT BLU/RED WIRE LT BLU/YEL WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE MAF SENS IN TP SENS IN REF VOLT SIG RTN BPP SWITCH MASS AIRFLOW (MAF) SENSOR (RIGHT SIDE OF ENGINE COMPT) NCA WIRE ORG/ WIRE PNK/BLK WIRE PNK/YEL WIRE POWER POWER GND POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) REAR AXLE SENSOR (ON AXLE ASSEMBLY) RED WIRE RED/BLK WIRE RED/LT BLU WIRE RED/LT GRN WIRE RED/PNK WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TAN/LT BLU WIRE TAN/LT GRN WIRE TAN/YEL WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE VPWR WAC WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE YEL/LT BLU WIRE YEL/RED WIRE

AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM (HTR-A/C ASSY) AIR SUSP INPUT BATTERY JUNCTION BOX (LEFT SIDE OF ENG COMPT, AT LEFT FENDER APRON) BLK WIRE BLK/PNK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN/PNK WIRE CRANKSHAFT POSITION (CKP) SENSOR (LOWER FRONT OF ENGINE COMPT) CRANKSHAFT POSITION SENSOR SHIELD DATA LINK (-) DATA LINK (+) DATA LINK CONNECTOR (BEHIND LEFT SIDE OF DASH) 10 2 DK BLU/LT GRN WIRE DK GRN/YEL WIRE ELECTRONIC SUSPENSION SYSTEM EVR CTRL TACHOMETER FUEL FLOW RATE FUEL LEVEL IN DATA LINK FUSE 10 FUSE 19 FUSE 27 FUSE JUNCTION PANEL (LEFT SIDE OF VEHICLE, BELOW DASH) GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START IGNITION COIL 1, 2 (LEFT FRONT OF ENGINE) IGNITION COIL 3, 4 (RIGHT FRONT OF ENGINE) INSTRUMENT CLUSTER SYSTEM LT BLU/BLK WIRE LT BLU/PNK WIRE LT GRN/RED WIRE MAF SIG RTN TRANS TEMP ECT SENS MAF SENS FUEL PUMP MON A/C NCA WIRE ORG/BLK WIRE ORG/YEL WIRE PCM POWER DIODE PCM POWER RELAY PNK/LT BLU WIRE PNK/LT GRN WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) PWR GND CHASSIS GND IGN COIL 1 SHIFT SOL A PWR GND IGN COIL 2 RADIO NOISE CAPACITOR (LEFT OF IGNITION COIL) RED WIRE RED/LT BLU WIRE RED/LT GRN WIRE RED/YEL WIRE SPARK PLUGS TAN/LT BLU WIRE TAN/ORG WIRE TAN/WHT WIRE TAN/YEL WIRE TRANS CTRL SW TRANSMISSION CONTROL SWITCH VIO WIRE VIO/ORG WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

270 OHMS 4-WHEEL ANTI-LOCK BRAKE SYSTEM AIR CONDITIONING SYSTEM (A/C PRESS SW) AIR CONDITIONING SYSTEM (A/C RELAY) BATTERY JUNCTION BOX (LEFT SIDE OF ENG COMPT, AT LEFT FENDER APRON) FUSE 6 BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT POSITION SENSOR SHIELD CAN VENT SOL DK BLU/ORG WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DPFE SENS FROM DTR SENSOR (DIAGRAM 2 OF 4) FT PRESS SENS FUSE 13 FUSE JUNCTION PANEL (LEFT SIDE OF VEHICLE, BELOW DASH) FUSE 9 GRY WIRE GRY/BLK WIRE GRY/LT BLU WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN HEATED OXYGEN HEATED OXYGEN HEATER CTRL HOT AT ALL TIMES IAC SOL OSS CMP SENS A/C PRESS LT BLU WIRE LT BLU/ORG WIRE LT BLU/RED WIRE LT BLU/YEL WIRE LT GRN/BLK WIRE LT GRN/ORG WIRE MAF SENS IN TP SENS IN REF VOLT SIG RTN BPP SWITCH MASS AIRFLOW (MAF) SENSOR (RIGHT SIDE OF ENGINE COMPT) NCA WIRE ORG/ WIRE PNK/WHT WIRE PNK/YEL WIRE POWER FUEL INJ 8 FUEL INJ 6 FUEL INJ 4 FUEL INJ 2 POWER GND IGN COIL 4 POWERTRAIN CONTROL MODULE (PCM) (MOUNTED THROUGH FIREWALL) REAR AXLE SENSOR (ON AXLE ASSEMBLY) RED WIRE RED/BLK WIRE RED/LT GRN WIRE RED/PNK WIRE RED/WHT WIRE RED/YEL WIRE TAN WIRE TAN/BLK WIRE TAN/LT BLU WIRE TAN/RED WIRE TAN/YEL WIRE TCC SOL KAPWR (+) VAPOR VALVE VIO/LT GRN WIRE VIO/WHT WIRE VSS WHT WIRE WHT/BLK WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE YEL/LT BLU WIRE