All Wiring Diagrams for Mercury Mountaineer 2005 model

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Mercury Mountaineer 2005

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Mercury Mountaineer 2005:

• (1: microprocessor)
• (2: pats indicator)
• (air conditioning harness, near breakout to temperature blend door actuator)
• (in main harness, near breakout to central junction box) s247
• (near breakout to center of dash) s219
• +/-
• A/c clutch relay
• A/c indicator diode
• Ambient air temperature sensor (right front of engine compt, near radiator support)
• Autolamp/ sunload sensor (behind glove box)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Blend door sig
• Blower motor ctrl
• Blower motor relay
• C220a
• C228a
• C228b
• C270b
• C270e
• C270h
• C3203c
• Can bus+
• Can bus-
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Driver temperature blend door actuator
• Electronic automatic temperature control (eatc) module (behind center of dash)
• Feed back voltage
• Feedback voltage
• Front blower motor (behind center of dash)
• Front blower motor speed controller (behind center of dash)
• Fuse 10 10a
• Fuse 15 15a
• Fuse 20 5a
• Fuse 30 5a
• Fuse 36 40a
• Fuse 37 15a
• Fuse 7 15a
• G101 (left front of engine compartment)
• G200 (at right ``a" pillar)
• G206 (behind center of dash)
• G300 (at left ``a" pillar)
• Ground
• Heater switch out
• High speed signal
• Hot at all times
• Hot in run or start
• Hot in start or run
• Hot w/ rear window defrost relay energized
• Illumination
• In-vehicle temperature sensor (behind center of dash)
• Instrument cluster
• Interior lights system
• Left
• Micropro- cessor
• Passenger temperature blend door actuator (behind right side of dash)
• Pwr
• Remote solenoid assembly (behind center of dash)
• Right
• Rs1 recir
• Rs2 defrost
• Rs3 floor
• Rs4 panel
• Rs5 heater ctr vlv
• Rs5 heater ctrl valve
• S147
• S148
• S229 (near breakout to glove box lamp)
• S232 (near breakout to central junction box)
• S233 (in main harness, near breakout to data link connector)
• S242
• S243
• S317 (in window regulator jumper assembly, near breakout to left rear speaker)
• Seats system
• Sig rtn
• Signal rtn
• Switch out
• Switch sig
• V ref
• Var speed signal
• Vbatt
• Vehicle security module (vsm) (above right rear wheelwell)
• Vpwr
• Vref

Automatic A/C Wiring Diagram (2 of 2) for Mercury Mountaineer 2005

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Mercury Mountaineer 2005:

• (at breakout to roof opening panel switch)
• (in air conditioning harness, near breakout to c3007) s341
• (in interior illumination harness, at breakout to c340) s908
• (in interior illumination harness, near breakout to c340) s326
• 0) off 1) low 2) med low 3) med high 4) high 5) ceiling 6) floor
• 0) off 1) rear 2) low 3) med low 4) med high 5) ceiling 6) floor
• A/c clutch cycling pressure switch (right side of engine compt)
• A/c clutch solenoid (at left side of engine)
• A/c high pressure switch (left front of engine compt)
• Air bag sliding contact (top of steering column)
• Audio/ climate control switch
• Auxiliary a/c relay (behind left side of rear seats)
• Auxiliary blower motor (left side of cargo area)
• Auxiliary blower motor resistor assembly (in left rear cargo area)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C175b
• C175e
• C218a
• C270a
• C938a
• C938b
• C940a
• C940b
• Central junction box (cjb) (behind left side of dash)
• Cool
• Cruise control system
• Engine coolant temperature (ect) sensor (4.0l) (top right of engine, near injector harness)
• Fan dn
• Fan up
• Fuse 25 5a
• Fuse 33 30a
• G101 (left front of engine compartment)
• G104 (right rear of engine compt)
• G400 (left rear of vehicle)
• Harness, at breakout to c340)
• Hot at all times
• Hot in start or run
• Interior lights system
• Nca
• Powertrain control module (pcm) (at right side engine bulkhead)
• Rear a/c control module (front) (in roof panel)
• Rear a/c control module (rear) (in roof panel)
• Rear mode door actuator (behind rear seats)
• S102 (near breakout to pcm)
• S135 (in dash panel to engine harness, near breakout to a/c clutch cycling pressure switch)
• S341 (in air conditioning harness, near breakout to c3007)
• S903 (near breakout to c340)
• S906 (in interior illumination harness, at breakout to c340)
• S907 (at breakout to c340)
• S910
• Temp dn
• Temp up
• Temperature blend door actuator (below left rear cargo area window)
• Warm

Manual A/C Wiring Diagram, with Sliding Roof (1 of 2) for Mercury Mountaineer 2005

List of elements for Manual A/C Wiring Diagram, with Sliding Roof (1 of 2) for Mercury Mountaineer 2005:

• (in main harness, near breakout to central junction box) s249
• (in main harness, near breakout to function selector switch assembly)
• (near breakout to temperature blend door actuator)
• 87a
• A/c clutch cycling pressure switch (right side of engine
• A/c clutch relay
• A/c clutch solenoid (at left side of engine)
• A/c demand signal
• A/c high pressure switch (left front of engine compt)
• A/c indicator diode
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Blend dr output
• Blower motor relay
• Blower motor switch
• Blower motor to blower sw
• C175b
• C175e
• C220a
• C270a
• C270b
• C270e
• C270h
• C294a
• C294b
• C294c
• Central junction box (cjb) (behind left side of dash)
• Compt)
• Def
• Engine coolant temperature sensor (ect) (4.0l) (top right of engine, near injector harness)
• Except base
• Exterior lights input
• Exterior lights system
• Floor
• Floor/vent
• Front blower motor (behind center of dash)
• Front blower motor resistor assembly (behind center of dash)
• Function selector switch assembly
• Fuse 10 10a
• Fuse 16 5a
• Fuse 30 5a
• Fuse 36 40a
• Fuse 37 15a
• Fuse 7 15a
• G101 (left front of engine compartment)
• G104 (right rear of engine compt)
• G200 (at right ``a" pillar)
• G206 (behind center of dash)
• G300 (at left ``a" pillar)
• Ground
• High
• High speed fan control relay (behind center of dash)
• Hot at all times
• Hot in start or run
• Hot w/ rear window defrost relay energized
• Illumination
• Instrument cluster
• Interior lights system
• Low
• Max
• Med 1
• Med 2
• Medium
• Micropro- cessor
• Mix
• Mode switch
• Nca
• Off
• Powertrain control module (pcm) (at right side engine bulkhead)
• Rear window defrost sw
• S102 (near breakout to powertrain control module)
• S147
• S148
• S219 (near breakout to center of dash)
• S222
• S240 (air conditioning harness, near breakout to temperature blend door actuator)
• S241
• S317 (in window regulator jumper assembly, near breakout to left rear speaker)
• Temperature blend door actuator (below left rear cargo area window)
• Vbatt
• Vent
• Vpwr

Manual A/C Wiring Diagram, with Sliding Roof (2 of 2) for Mercury Mountaineer 2005

List of elements for Manual A/C Wiring Diagram, with Sliding Roof (2 of 2) for Mercury Mountaineer 2005:

• (in air conditioning harness, near breakout to c3007) s339
• (in air conditioning harness, near breakout to c3007) s341
• (in interior illumination harness, near breakout to c340)
• 0) off 1) rear 2) low 3) med low 4) med high 5) ceiling 6) floor
• 1) ceiling
• 2) floor
• Auxiliary a/c relay (behind left side of rear seats)
• Auxiliary blower motor (left side of cargo area)
• Auxiliary blower motor resistor assembly (in left rear cargo area)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C270a
• C938a
• C938b
• C940a
• Central junction box (cjb) (behind left side of dash)
• Cool
• Fuse 25 5a
• Fuse 33 30a
• G400 (left rear of vehicle)
• Hot at all times
• Hot in start or run
• Interior lights system
• Rear a/c control module (front) (in roof panel)
• Rear a/c control module (rear) (in roof panel)
• Rear mode door actuator (left side of cargo area, behind rear seats)
• S341 (in air conditioning harness, near breakout to c3007)
• S903
• S908 (in interior illumination harness, at breakout to c340)
• Temperature blend door actuator (below left rear cargo area window)
• Warm

Manual A/C Wiring Diagram, without Sliding Roof (1 of 2) for Mercury Mountaineer 2005

List of elements for Manual A/C Wiring Diagram, without Sliding Roof (1 of 2) for Mercury Mountaineer 2005:

• (in main harness, near breakout to central junction box) s249
• (in main harness, near breakout to function selector switch assembly)
• (near breakout to temperature blend door actuator)
• 87a
• A/c clutch cycling pressure switch (right side of engine
• A/c clutch relay
• A/c clutch solenoid (at left side of engine)
• A/c demand signal
• A/c high pressure switch (left front of engine compt)
• A/c indicator diode
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Blend dr output
• Blower motor relay
• Blower motor switch
• Blower mtr to blower switch
• C175b
• C175e
• C220a
• C270a
• C270b
• C270e
• C270h
• C294a
• C294b
• C294c
• Central junction box (cjb) (behind left side of dash)
• Compt)
• Def
• Engine coolant temperature sensor (ect) (4.0l) (top right of engine, near injector harness)
• Except base
• Exterior lights input
• Exterior lights system
• Floor
• Floor/vent
• Front blower motor (behind center of dash)
• Front blower motor resistor assembly (behind center of dash)
• Function selector switch assembly
• Fuse 10 10a
• Fuse 16 5a
• Fuse 30 5a
• Fuse 36 40a
• Fuse 37 15a
• Fuse 7 15a
• G101 (left front of engine compartment)
• G104 (right rear of engine compt)
• G200 (at right ``a" pillar)
• G206 (behind center of dash)
• G300 (at left ``a" pillar)
• Ground
• High
• High speed fan control relay (behind center of dash)
• Hot at all times
• Hot in start or run
• Hot w/ rear window defrost relay energized
• Illumination
• Instrument cluster
• Interior lights system
• Low
• Max
• Med 1
• Med 2
• Medium
• Micropro- cessor
• Mix
• Mode switch
• Nca
• Off
• Powertrain control module (pcm) (at right side engine bulkhead)
• Rear window defrost sw
• S102 (near breakout to powertrain control module)
• S147
• S148
• S219 (near breakout to center of dash)
• S222
• S240 (air conditioning harness, near breakout to temperature blend door actuator)
• S241
• S317 (in window regulator jumper assembly, near breakout to left rear speaker)
• Temperature blend door actuator (below left rear cargo area window)
• Vbatt
• Vent
• Vpwr

Manual A/C Wiring Diagram, without Sliding Roof (2 of 2) for Mercury Mountaineer 2005

List of elements for Manual A/C Wiring Diagram, without Sliding Roof (2 of 2) for Mercury Mountaineer 2005:

• (in air conditioning harness, near breakout to c3007) s341
• (in interior illumination harn, at breakout to c340) s907
• (in interior illumination harness, at breakout to c340)
• (in interior illumination harness, near breakout to c340) s326
• (in interior illumination harness, near breakout to c340) s903
• (in pia harness, at breakout to roof opening panel switch) s910
• (left rear of vehicle)
• 0) off 1) low 2) med low 3) med high 4) high 5) ceiling 6) floor
• 0) off 1) rear 2) low 3) med low 4) med high 5) ceiling 6) floor
• At breakout to c340)
• Auxiliary a/c relay (behind left side of rear seats)
• Auxiliary blower motor (left side of cargo area)
• Auxiliary blower motor resistor assembly (in left rear cargo area)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C270a
• C938a
• C938b
• C940a
• C940b
• Central junction box (cjb) (behind left side of dash)
• Cool
• Fuse 25 5a
• Fuse 33 30a
• G400
• G400 (left rear of vehicle)
• Hot at all times
• Hot in start or run
• Interior lights system
• Rear a/c control module (front) (in roof panel)
• Rear a/c control module (rear) (in roof panel)
• Rear mode door actuator (left side of cargo area, behind rear seats)
• S339 (in air conditioning harness, near breakout to c3007)
• S341 (in air conditioning harness, near breakout to c3007)
• S906
• Temperature blend door actuator (below left rear cargo area window)
• Warm

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram, with IVD for Mercury Mountaineer 2005

List of elements for Anti-lock Brakes Wiring Diagram, with IVD for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to left horn) s120
• (left front of engine compt) g101
• 1) break pedal force switch 2) active booster solenoid
• Abs control module (left front of engine compt)
• Abs ind
• Abs test connector (at left side of engine compt)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake booster sensor (on front of brake booster)
• Brake fluid level switch (mounted on side of master cylinder)
• Brake pedal position switch (above brake pedal)
• C175b
• C220a
• C220b
• C270a
• C270b
• C270h
• Can +
• Can -
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 40a
• Fuse 5a
• Fuse 7.5a
• G101 (left front of engine compt)
• Gnd
• Hot at all times
• Hot in start or run
• Illum
• Ind
• Instrument cluster
• Interior lights system
• Iso
• Left front wheel speed sensor (at left front wheel)
• Left rear wheel speed sensor (at left rear wheel)
• Micro processor
• Powertrain control module (pcm) (at right side engine bulkhead)
• Primary brake pressure sensor (on master cylinder)
• Red
• Red/ pnk
• Red/pnk
• Redundant pedal switch (under left side dash panel)
• Right front wheel speed sensor (at right front wheel)
• Right rear wheel speed sensor (at right rear wheel)
• S171
• S173
• S200
• S201
• S264
• Secondary brake pressure sensor (on brake booster)
• Steering position sensor (at top of steering column)
• Tan
• Tcs disable
• Traction control switch
• Vbatt
• Vpwr
• Yaw velocity sensor (below center console)

Anti-lock Brakes Wiring Diagram, without IVD for Mercury Mountaineer 2005

List of elements for Anti-lock Brakes Wiring Diagram, without IVD for Mercury Mountaineer 2005:

• (at left side of engine compt)
• Abs control module (left front of engine compt)
• Abs ind
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake fluid level switch (mounted on side of master cylinder)
• Brake pedal position switch (above brake pedal)
• Brake pressure switch (mounted on master cylinder)
• C220a
• C220b
• C270b
• C270h
• Can +
• Can -
• Can bus+
• Can bus-
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Fuse 10a
• Fuse 15a
• Fuse 2a
• Fuse 30a
• Fuse 40a
• Fuse 5a
• G101 (left front of engine compt)
• Gnd
• Hot at all times
• Hot in start or run
• Instrument cluster
• Iso
• Left front wheel speed sensor (at left front wheel)
• Micro processor
• Pressure switch)
• Rear axle speed sensor (on rear differential)
• Right front wheel speed sensor (at right front wheel)
• S120 (in dash panel to engine harness, near breakout to windshield wiper motor)
• S173
• Vbatt
• Vpwr

ANTI-THEFT

Forced Entry Wiring Diagram for Mercury Mountaineer 2005

List of elements for Forced Entry Wiring Diagram for Mercury Mountaineer 2005:

• (in main harness, near breakout to c238) s246
• (in window regulator jumper assembly, near breakout to passenger 1 side impact sensor) s328
• (near breakout to passenger 1 side impact sensor) s351
• +/-
• 1/2
• 3/4
• 5/6
• 7/8
• 9/0
• Autolmp sig
• Battery junction
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Box (bjb) (left side of engine compt, at fender apron)
• C220b
• C270e
• C3203d
• C3203e
• C3203f
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Data link connector (dlc) (behind left side of dash)
• Door ajar sw
• Door locks system
• Driver side rear door ajar switch (at rear of left rear door)
• Exterior lights system
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse 5a
• G101 (left front of engine compt)
• G103 (right front of engine compt)
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• G401 (at right ``d" pillar)
• Glass release
• Gnd
• Ground
• Headlights system
• Horn relay
• Horn relay pwr
• Hot at all times
• Instrument cluster
• Key pad switch assembly
• Lamp pwr
• Left front door ajar switch (at rear of left front door)
• Left horn (at left front of engine compartment)
• Liftgate ajar
• Liftgate ajar switch (lower center of liftgate)
• Liftgate glass ajar switch (in center of tailgate)
• Microprocessor
• Passenger side rear door ajar switch (at rear of right rear door)
• Passive anti-theft circuit
• Power windows system
• Pwr
• Red
• Right front door ajar switch (at rear of right front door)
• Right horn (at right front of engine compartment)
• S124 (in dash panel to engine harness, near breakout to c126)
• S170
• S205
• S259
• S407
• S502
• S602
• Sig rtn
• Sw input
• Tan
• Ubp
• Vbatt
• Vehicle security module (vsm) (above right rear wheelwell)
• Vpwr autolmp relay

Passive Anti-theft Wiring Diagram for Mercury Mountaineer 2005

List of elements for Passive Anti-theft Wiring Diagram for Mercury Mountaineer 2005:

• Autolamp/ sunload sensor (behind glove box)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C175b
• C270d
• C270e
• C3203f
• Central junction box (cjb) (behind left side of dash)
• Door ajar star rly ctrl
• Fuse 5a
• G200 (at right ``a" pillar)
• G300 (at left ``a" pillar)
• Gnd
• Hot at all times
• Hot in start or run
• Ind ctrl
• Passive anti-theft transceiver (on steering column)
• Pats indicator
• Powertrain control module (pcm) (at right side engine bulkhead)
• S219
• S229
• Starter relay
• Vehicle security module (vsm) (above right rear wheelwell)
• Vpwr

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Mercury Mountaineer 2005

List of elements for Computer Data Lines Wiring Diagram for Mercury Mountaineer 2005:

• (above right rear wheelwell) vehicle security module (vsm)
• (at right "c" pillar) low tire pressure module
• (at right side engine bulkhead) powertrain control module (pcm)
• (behind center of dash) electronic automatic temperature control (eatc) module
• (left side of engine compt)
• (near breakout for center of dash)
• (near breakout to audio unit) s228
• (near breakout to c238) s246
• (near breakout to g100) s110
• (near breakout to left front of engine compt)
• (near breakout to passenger side impact sensor) s351
• Abs control module (left front of engine compt)
• Abs test connector
• C175b
• C220b
• C228b
• C270f
• C310a
• C3203f
• C341g
• Can bus +
• Can bus -
• Can bus - can bus +
• Central junction box (cjb) (behind left side of dash)
• Data link connector (dlc) (behind left side of dash)
• Driver seat module (in driver's seat)
• Feps
• Fuse 24 15a
• G100 (left front of engine compt)
• G200 (at right "a" pillar)
• Hot at all times
• Instrument cluster
• Iso
• Microprocessor
• Parking aid module (pam) (at right "d" pillar)
• Restraints control module (below center console)
• S111
• S209
• S212
• S223
• S263
• S301
• S304
• Side of engine compt) abs test connector
• Ubp

CRUISE CONTROL

Cruise Control Wiring Diagram, with IVD for Mercury Mountaineer 2005

List of elements for Cruise Control Wiring Diagram, with IVD for Mercury Mountaineer 2005:

• Air bag sliding contact (at top of steering column)
• Air conditioning system
• Audio/ climate control switch
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake pedal position switch (above brake pedal)
• C175b
• C175e
• C175t
• C218a
• C220a
• C220b
• Can bus+
• Can bus-
• Cancel
• Computer data lines system
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Electronic throttle control (etc) motor (at top of engine)
• Engine controls system
• Etc motor, +/-
• Fuse 15a
• G104 (right rear of engine compt)
• Gnd
• Horn switch
• Hot at all times
• Instrument cluster
• Interior lights system
• Microprocessor
• Near breakout to central junction box)
• Output shaft speed (oss) sensor (a/t: left rear of automatic transmission)
• Powertrain control module (pcm) (at right side engine bulkhead)
• Redundant pedal switch (under left side dash panel)
• Res
• S101 (in transmission control selector neutral switch harness, near breakout to powertrain control module)
• S120 (in dash panel to engine harness, near breakout to left horn)
• S132
• S149
• S171
• S173
• Set+
• Set-
• Sig
• Sig rtn
• Sig1
• Sig2
• Speed control indicator
• Speed control switch
• Throttle position sensor (tps) (on top of throttle body)
• Vref

Cruise Control Wiring Diagram, without IVD for Mercury Mountaineer 2005

List of elements for Cruise Control Wiring Diagram, without IVD for Mercury Mountaineer 2005:

• Air bag sliding contact (at top of steering column)
• Air conditioning system
• Anti-lock brakes system
• Audio/ climate control switch
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake pedal position switch (above brake pedal)
• Brake pressure switch (mounted on master cylinder)
• C175b
• C175e
• C175t
• C218a
• C220a
• C220b
• Can bus+
• Can bus-
• Cancel
• Computer data lines system
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Electronic throttle control (etc) motor (at top of engine)
• Engine controls system
• Etc motor, +/-
• Fuse 15a
• Fuse 2a
• G104 (right rear of engine compt)
• Gnd
• Horn switch
• Hot at all times
• Hot in start or run
• Instrument cluster
• Interior lights system
• Microprocessor
• Near breakout to central junction box)
• Output shaft speed (oss) sensor (a/t: left rear of automatic transmission)
• Powertrain control module (pcm) (at right side engine bulkhead)
• Res
• S101 (in transmission control selector neutral switch harness, near breakout to powertrain control module)
• S120 (in dash panel to engine harness, near breakout to windshield wiper motor)
• S127 (in dash panel to engine harness, near breakout to a/c clutch cycling pressure switch)
• S132
• S149
• Set+
• Set-
• Sig
• Sig rtn
• Sig1
• Sig2
• Speed control indicator
• Speed control switch
• Throttle position sensor (tps) (on top of throttle body)
• Vref

DEFOGGERS

Defoggers Wiring Diagram for Mercury Mountaineer 2005

List of elements for Defoggers Wiring Diagram for Mercury Mountaineer 2005:

• (near breakout to left rear speaker) s317
• Automatic a/c
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C220a
• C228a
• C270a
• C270c
• C270e
• C294b
• C402a
• C402b
• Central junction box (cjb) (behind left side of dash)
• Electronic automatic temperature control (eatc) module (behind center of dash)
• Function selector switch assembly
• Fuse 10a
• Fuse 15a
• Fuse 30a
• G200 (at right "a" pillar)
• G401 (at right "d" pillar)
• G403 (left rear of vehicle)
• Hot at all times
• Hot in start or run
• Instrument cluster
• Left exterior rear view mirror
• Manual a/c
• Micro-
• Micro- processor
• Processor
• Rear window defrost grid
• Rear window defrost relay
• Right exterior rear view mirror
• S216
• S415
• S502
• S602

ENGINE PERFORMANCE

4.0L

4.0L, Engine Performance Wiring Diagram (1 of 4) for Mercury Mountaineer 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (1 of 4) for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to
• (in dash panel to engine harness, near breakout to a/c clutch cycling pressure switch)
• (in dash panel to engine harness, near breakout to left horn) s168
• (in dash panel to engine harness, near breakout to powertrain control module)
• (in main harness, near breakout to left side of dash)
• A/c clutch cycling pressure switch)
• A/c sw
• Ac demand
• Accelerator pedal position sensor (under left side of dash)
• Air conditioning system
• Anti-theft system
• Audio unit
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake in
• Brake pressure switch (mounted on master cylinder)
• C175b
• C240a
• C290a
• Can bus +
• Can bus -
• Can vent
• Cruise control system
• Data link connector (dlc) (behind left side of dash)
• Dr ajar
• Evap pu
• Evaporative emission (evap) canister vent valve (right rear of vehicle, on frame rail)
• Feps
• Fpm
• Fuse 15a
• Fuse 20a
• Fuse 2a
• Fuse 40a
• G101 (left front of engine compt)
• G103 (right front of engine compt)
• G104 (right rear of (right rear of engine compt) engine compt)
• G105 (right rear of engine compt)
• Ground
• Hot at all times
• Hot in run or start
• Iat in
• Ind ctrl
• Maf out
• Mass airflow (maf) sensor (right front of engine compt, on fender)
• Od off
• Passive anti-theft transceiver (on steering column)
• Pcm power diode
• Pcm power relay
• Pos 1
• Pos 2
• Pos 3
• Powertrain control module (pcm) (at right side engine bulkhead)
• Press sw
• Red
• Red/pnk
• Rtn
• S127
• S130
• S131
• S132
• S148
• S150
• S209
• S212
• Sens rtn
• Sig rtn
• Srs
• St mtr
• Starting/charging system
• Tan
• Tank press
• Transmission system (4wd circuit)
• Tx sig
• Vapor management valve (left rear of engine compt)
• Vbatt
• Vpwr
• Vref
• Vss
• W/ 4x4
• W/ audiophile
• W/o audiophile
• W/o ivd w/ ivd
• Windshield wiper motor (at left rear of engine compt)

4.0L, Engine Performance Wiring Diagram (2 of 4) for Mercury Mountaineer 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (2 of 4) for Mercury Mountaineer 2005:

• (above brake pedal) brake pedal position switch
• (in transmission control selector neutral switch harness, near breakout to powertrain control module)
• (on lower left of automatic transmission) transmission solenoid body assembly
• Abs control module (left front of engine compt)
• Acc
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C175t
• C270c
• Central junction box (cjb) (behind left side of dash)
• Fuse 5a
• G103 (right front of engine compt)
• H2os 12 htr
• H2os 12 in
• H2os 22 htr
• H2os 22 in
• Hot at all times
• Hot in run or start
• Ignition switch
• Iss
• Lock
• Nca
• Off
• Oss
• Pcs a
• Pcs b
• Pcs c
• Positive crankcase ventilation heater (right rear of engine compt)
• Powertrain control module (pcm) (at right side engine bulkhead)
• Press ctrl sol a
• Press ctrl sol b
• Press ctrl sol c
• Red/pnk
• Redundant pedal switch (under left side dash panel)
• S101
• S113
• S120 (w/ ivd: in dash panel to engine harness, near breakout to left horn) (w/o ivd: in dash panel to engine harness, near breakout to windshield wiper motor)
• S173
• Shift sol a
• Shift sol b
• Shift sol c
• Shift sol d
• Sig rtn
• Ss a
• Ss b
• Ss c
• Ss d
• Start
• Tcc sol
• Transmission control switch
• Transmission controls system (4wd circuit)
• Transmission fluid temperature sensor
• Tss
• Turbine shaft speed (tss) sensor (a/t) (top left side of automatic transmission)
• Vref
• W/ ivd

4.0L, Engine Performance Wiring Diagram (3 of 4) for Mercury Mountaineer 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (3 of 4) for Mercury Mountaineer 2005:

• (in engine control sensor & fuel charge harness, near breakout to powertrain control module)
• (in engine control sensor & fuel charge harness, near breakout to heated oxygen sensor)
• (in transmission control selector neutral switch harness, near breakout to digital transmission range sensor)
• (lower left side of automatic transmission) digital transmission range (dtr) sensor
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C220a
• C270a
• C270f
• C270h
• Central junction box (cjb) (behind left side of dash)
• Check
• Engine
• Flex fuel sender module
• Fuel gauge
• Fuel pump
• Fuel pump relay
• Fuel tank pressure transducer sensor
• Fuel tank unit (on right frame rail)
• Fuse 10a
• Fuse 20a
• Fuse 5a
• G101 (left front of engine compt)
• Heated oxygen sensor (ho2s) 11 (in right exhaust pipe before catalytic converter)
• Heated oxygen sensor (ho2s) 12 (in left exhaust pipe, after catalytic converter)
• Heated oxygen sensor (ho2s) 21 (in left exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) 22 (in right exhaust pipe, after catalytic converter)
• Hot at all times
• Hot in run or start
• Hot with battery saver relay energized
• Inertia fuel shutoff (ifs) switch (base of right "a" pillar)
• Instrument cluster
• Intermediate shaft speed (iss) sensor (a/t) (top left side
• Micro- processor
• N r
• Nca
• Of automatic transmission)
• Output shaft speed sensor (a/t) (left rear
• Red
• Red/pnk
• S100
• S102
• S103
• S146
• Sig rtn

4.0L, Engine Performance Wiring Diagram (4 of 4) for Mercury Mountaineer 2005

List of elements for 4.0L, Engine Performance Wiring Diagram (4 of 4) for Mercury Mountaineer 2005:

• (at right "d" pillar) fuel pump driver module
• (engine control sensor & fuel charge harness, near breakout to ignition coil) s134
• (in engine control sensor & fuel charge harness, near breakout to differential pressure feedback egr sensor) s105
• (in engine control sensor & fuel charge harness, near breakout to heated oxygen sensor) s104
• (not used)
• (top of engine) ignition coil
• C175e
• Camshaft position sensor (front of right cylinder head)
• Ckp sens +
• Ckp sens -
• Cmp sens
• Crankshaft position sensor (right front of engine, behind a/c compressor)
• Dfpegr sens
• Ect input
• Egr system module
• Egrvr
• Electronic throttle control motor
• Engine coolant temperature (ect) sensor (top right of engine, near injector harness)
• Fuel injectors
• Fuel pres
• Fuel rail pressure transducer sensor
• G105 (right rear of engine compt)
• G401 (at right "d" pillar)
• Ho2s 11
• Ho2s 11 htr
• Ho2s 21
• Ho2s 21 htr
• Ignition transformer capacitor (at top of engine)
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Knock sensor (top rear of engine)
• Ks +
• Ks -
• Map
• Nca
• Pcm to coil
• Pcm to t1
• Powertrain control module (pcm) (at right side engine bulkhead)
• Red/pnk
• Return
• S106
• Sig rtn
• Sig1
• Sig2
• Tan
• Temp
• Throttle position (tps) sensor (on top of throttle body)
• V ref
• Vref

4.6L

4.6L, Engine Performance Wiring Diagram (1 of 4) for Mercury Mountaineer 2005

List of elements for 4.6L, Engine Performance Wiring Diagram (1 of 4) for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to
• (in dash panel to engine harness, near breakout to a/c clutch cycling pressure switch)
• (in dash panel to engine harness, near breakout to left horn) s168
• (in dash panel to engine harness, near breakout to powertrain control module)
• (in main harness, near breakout to left side of dash)
• A/c clutch cycling pressure switch)
• A/c sw
• Ac demand
• Accelerator pedal position sensor (under left side of dash)
• Air conditioning system
• Air contioning system
• Anti-theft system
• Audio unit
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake in
• Brake pressure switch (mounted on master cylinder)
• C175b
• C240a
• C290a
• Can bus +
• Can bus -
• Can vent
• Cruise control system
• Data link connector (dlc) (behind left side of dash)
• Dr ajar
• Evap pu
• Evaporative emission (evap) canister vent valve (right rear of vehicle, on frame rail)
• Feps
• Fpm
• Fuse 15a
• Fuse 20a
• Fuse 2a
• Fuse 40a
• G101 (left front of engine compt)
• G103 (right front of engine compt)
• G104 (right rear of engine compt)
• G105 (right rear of engine compt)
• Ground
• Hot at all times
• Hot in run or start
• Iat in
• Ind ctrl
• Maf out
• Mass airflow (maf) sensor (right front of engine compt, on fender)
• Od off
• Passive anti-theft transceiver (on steering column)
• Pcm power diode
• Pcm power relay
• Pos 1
• Pos 2
• Pos 3
• Powertrain control module (pcm) (at right side engine bulkhead)
• Press sw
• Red
• Red/pnk
• Rtn
• S127
• S130
• S131
• S132
• S148
• S149
• S150
• S209
• S212
• Sens rtn
• Sig ret
• Sig rtn
• Srs
• St mtr
• Starting/charging system
• Tan
• Tank press
• Transmissions system (4wd circuit)
• Tx sig
• Vapor management valve (left rear of engine compartment)
• Vbatt
• Vpwr
• Vref
• Vss
• W/ 4x4
• W/ audiophile
• W/o audiophile
• W/o ivd w/ ivd
• Windshield wiper motor (left rear of engine compt)

4.6L, Engine Performance Wiring Diagram (2 of 4) for Mercury Mountaineer 2005

List of elements for 4.6L, Engine Performance Wiring Diagram (2 of 4) for Mercury Mountaineer 2005:

• (above brake pedal) brake pedal position switch
• (in transmission control selector neutral switch harness, near breakout to powertrain control module)
• (on lower left of automatic transmission) transmission solenoid body assembly
• Abs control module (left front of engine compt)
• Acc
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C175t
• H2os 12 htr
• H2os 12 in
• H2os 22 htr
• H2os 22 in
• Hot at all times
• Ignition switch
• Iss
• Lock
• Nca
• Off
• Oss
• Pcs a
• Pcs b
• Pcs c
• Powertrain control module (pcm) (at right side engine bulkhead)
• Press ctrl sol a
• Press ctrl sol b
• Press ctrl sol c
• Red/pnk
• Redundant pedal switch (under left side dash panel)
• S101
• S113
• S120 (w/ ivd: in dash panel to engine harness, near breakout to left horn) (w/o ivd: in dash panel to engine harness, near breakout to windshield wiper motor)
• S173
• Shift sol a
• Shift sol b
• Shift sol c
• Shift sol d
• Sig rtn
• Ss a
• Ss b
• Ss c
• Ss d
• Start
• Tcc sol
• Transmission control switch
• Transmission fluid temperature sensor
• Transmission system
• Tss
• Turbine shaft speed (tss) sensor (a/t) (on top left side of automatic transmission)
• Vref
• W/ ivd

4.6L, Engine Performance Wiring Diagram (3 of 4) for Mercury Mountaineer 2005

List of elements for 4.6L, Engine Performance Wiring Diagram (3 of 4) for Mercury Mountaineer 2005:

• (in engine control sensor & fuel charge harness, near breakout to powertrain control module)
• (in engine control sensor & fuel charge harness, near breakout to heated oxygen sensor)
• (in transmission control selector neutral switch harness, near breakout to digital transmission range sensor)
• (lower left side of automatic transmission) digital transmission range (dtr) sensor
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C220a
• C270f
• C270h
• Central junction box (cjb) (behind left side of dash)
• Check
• Engine
• Flex fuel sender module
• Fuel gauge
• Fuel pump
• Fuel pump relay
• Fuel tank pressure transducer sensor
• Fuel tank unit (on right frame rail)
• Fuse 20a
• Fuse 5a
• G101 (left front of engine compt)
• Heated oxygen sensor (ho2s) 11 (in right exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) 12 (in left exhaust pipe, after catalytic converter)
• Heated oxygen sensor (ho2s) 21 (in left exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) 22 (in right exhaust pipe, after catalytic converter)
• Hot at all times
• Hot in run or start
• Inertia fuel shutoff (ifs) switch (at base of right "a" pillar)
• Instrument cluster
• Intermediate shaft speed (iss) sensor (a/t) (top left side
• Micro- processor
• N r
• Nca
• Of automatic transmission)
• Output shaft speed sensor (a/t) (left rear
• Red
• Red/pnk
• S100
• S102
• S103
• S146
• Sig rtn

4.6L, Engine Performance Wiring Diagram (4 of 4) for Mercury Mountaineer 2005

List of elements for 4.6L, Engine Performance Wiring Diagram (4 of 4) for Mercury Mountaineer 2005:

• (at right "d" pillar) fuel pump driver module
• (in engine control sensor & fuel charge harness, near breakout to differential pressure feedback egr sensor)
• (in engine control sensor & fuel charge harness, near breakout to fuel injector 3) s108
• (in engine control sensor & fuel charge harness, near breakout to fuel injector 7)
• (in engine control sensor & fuel charge harness, near breakout to heated oxygen sensor)
• C175e
• Camshaft position sensor (on front of right cylinder head)
• Ckp sens +
• Ckp sens -
• Cmp sens
• Coil on plug
• Cop 1
• Cop 2
• Cop 3
• Cop 4
• Cop 5
• Cop 6
• Cop 7
• Cop 8
• Crankshaft position sensor (on right front of engine, behind a/c compressor)
• Cyl temp
• Cylinder head temperature sensor (top front of cylinder head)
• Dfpegr sens
• Egr system module (at top of engine)
• Egrvr
• Electronic throttle control motor (at top of engine)
• Fuel pres
• Fuel rail pressure transducer sensor (at top rear of engine)
• G105 (right rear of engine compt)
• G401 (at right "d" pillar)
• Harness, near breakout to fuel injector 4)
• Ho2s 11
• Ho2s 11 htr
• Ho2s 21
• Ho2s 21 htr
• Ignition transformer capacitor 1 (in engine compt)
• Ignition transformer capacitor 2 (in engine compt)
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Inj 7
• Inj 8
• Injec- tors
• Knock sensor (at rear of engine)
• Ks +
• Ks -
• Map
• Nca
• Powertrain control module (pcm) (at right side engine bulkhead)
• Red/pnk
• Return
• S104
• S105
• S106
• S107
• S109
• Sig rtn
• Sig1
• Sig2
• Tan
• Tan/red
• Throttle position (tps) sensor (top of throttle body)
• V ref
• Vref

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Mercury Mountaineer 2005

List of elements for Back-up Lamps Wiring Diagram for Mercury Mountaineer 2005:

• (in rear lamp connector harness, near breakout to parking aid speaker) s401
• (in window regulator jumper assembly, near breakout to driver safety belt buckle switch) s309
• Autodimming interior mirror unit
• C270a
• Central junction box (cjb) (behind left side of dash)
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Fuse 7.5a
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• Hot in run or start
• Left reversing lamp
• Parking aid module (pam) (at right "d" pillar)
• Rear auxiliary junction box (ajb) (at right "d" pillar)
• Reversing lamp trailer tow relay
• Right reversing lamp
• S400
• S404

Exterior Lamps Wiring Diagram for Mercury Mountaineer 2005

List of elements for Exterior Lamps Wiring Diagram for Mercury Mountaineer 2005:

• "a" pillar) g200
• (in dash panel to engine harness, near breakout to left horn) s122
• (manual a/c) function selector switch assembly
• (near breakout for center of dash) s307
• (near breakout to central junction box) s224
• (near breakout to data link connector)
• (near breakout to left rear park/stop /turn lamp) s405
• (near breakout to left repeater lamp) s136
• (near breakout to right reversing lamp) s402
• (near breakout to to central junction box) s203
• (right "d" pillar) rear auxiliary junction box (ajb)
• Auto off
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake pedal position switch (above brake pedal)
• C202b
• C205a
• C205b
• C220a
• C220b
• C270a
• C270d
• C294b
• C3203e
• Central junction box (cjb) (behind left side of dash)
• Fuse 15a
• Fuse 5a
• G101 (left front of engine compartment)
• G103 (right front of engine compartment)
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• Hazard
• Head
• High mounted stoplamp
• Hot at all times
• Hot in run or start
• Indicator flasher relay
• Instrument cluster
• Left front park/ turn lamp
• Left front side lamp
• Left license plate lamp
• Left re- peater lamp
• Left rear park/ stop/ turn lamp
• Left rear side lamp
• Left tail lamp
• Left turn
• Left turn signal ind
• Left turn trailer tow relay
• Main light switch
• Micro- processor
• Multi-function switch
• Nca
• Park
• Parking lamp trailer tow relay
• Pwr
• Right front park/ turn lamp
• Right front side lamp
• Right license plate lamp
• Right re- peater lamp
• Right rear park/ stop/ turn lamp
• Right rear side lamp
• Right tail lamp
• Right turn
• Right turn signal ind
• Right turn trailer tow relay
• S120 (near breakout to windshield wiper motor)
• S126
• S137 (near breakout to ambient air temperature sensor)
• S138
• S173
• S204
• S217 (near breakout to center of dash)
• S250
• S251
• S259
• S407
• Trailer electronic brake control module (early production) (behind right side of dash)
• Vehicle security module (vsm) (above right rear wheelwell)

Trailer Tow Wiring Diagram for Mercury Mountaineer 2005

List of elements for Trailer Tow Wiring Diagram for Mercury Mountaineer 2005:

• Back-up lamps circuit
• Battery charge trailer tow relay
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake pedal position switch (above brake pedal)
• C270a
• Central junction box (cjb) (behind left side of dash)
• Class ii
• Class iii/iv
• Exterior lamps circuit
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse 40a
• Fuse 5a
• G103 (right front of engine compartment)
• G200 (at right "a" pillar)
• G401 (at right "d" pillar)
• Hot at all times
• Hot in run or start
• Left turn trailer tow relay
• Nca
• Parking lamp trailer tow relay
• Rear auxiliary junction box (ajb) (right "d" pillar)
• Reversing lamp trailer tow relay
• Right turn trailer tow relay
• S120 (w/ ivd: near breakout to left horn) (w/o ivd: near breakout to windshield wiper motor)
• S121
• S173
• S216
• S410
• S412
• Trailer electronic brake control module (behind right side of dash)
• Trailer tow connector (class ii) (at rear of vehicle, below bumper)
• Trailer tow connector (class iii/iv) (at rear of vehicle, below bumper)

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Mercury Mountaineer 2005

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Mercury Mountaineer 2005:

• (at right side of engine compartment) engine compartment relay box
• (ends in harness) abs test connector
• (left side of engine compartment, at fender apron) battery junction box (bjb)
• (left side of engine compt, at fender apron) battery junction box (bjb)
• 4.0l
• 4.6l
• 87a
• A/c clutch cycling pressure switch
• A/c clutch solenoid
• A/c high pressure switch
• A/c indicator diode
• Abs control module
• Blower motor relay
• Brake fluid level switch
• C175b
• Daytime running lamps (drl) relay
• Explorer
• Fog lamp relay
• Fuel pump relay
• G101 (left front of engine compartment)
• G103 (right front of engine compartment)
• G104 (right rear of engine compartment)
• G105 (right rear of engine compartment)
• G109 (in engine compartment)
• Harness, near breakout to right side of engine compt)
• High beam relay
• Ignition relay
• Left front fog lamp
• Left front high beam lamp
• Left front low beam lamp
• Left front park/turn lamp
• Left front side lamp
• Left headlamp
• Left horn
• Left repeater lamp
• Left turn trailer tow relay
• Mass air flow (maf) sensor
• Mountaineer
• Nca
• Near breakout to c1168)
• Pcm power relay
• Positive crankcase ventilation heater
• Powertrain control module (pcm)
• Right front fog lamp
• Right front high beam lamp
• Right front low beam lamp
• Right front park/turn lamp
• Right front side lamp
• Right headlamp
• Right horn
• Right repeater lamp
• Right turn trailer tow relay
• S126 (in dash panel to engine harness, near breakout to g103)
• S135 (in dash panel to engine harness, near breakout to a/c clutch cycling pressure switch)
• S138 (in dash panel to headlamp junction extension harness, near breakout to left headlamp)
• S139 (in dash panel to headlamp junction extension harness, near breakout to right headlamp)
• Shield
• Transfer case high to low relay
• Transfer case low to high relay
• Windshield wiper motor

Ground Distribution Wiring Diagram (2 of 4) for Mercury Mountaineer 2005

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Mercury Mountaineer 2005:

• (in radio jumper harness, near breakout to c237)
• (manual a/c)
• (manual a/c) function selector switch assembly
• (w/ audiophile) subwoofer amplifier
• (w/ base) audio unit
• (w/o audiophile) (w/ audiophile)
• Adjustable pedal switch
• Audio unit
• Autolamp/ sunload sensor
• Brake shift interlock
• C202a
• C205a
• C205b
• C220a
• C220b
• C228b
• C240b
• C290a
• C294b
• C294c
• C310a
• C341g
• Console 1 power point
• Console 2 power point
• Data link connector (dlc)
• Driver safety belt buckle switch
• Driver seat module
• Dvd player
• Electronic automatic temperature control (eatc) module
• Electronic compass
• Four- wheel drive switch
• Front blower motor resistor assembly
• Front blower motor speed controller
• Front cigar lighter
• Function selector switch assembly
• G200 (at right "a" pillar)
• G204 (at right "a" pillar)
• G205 (under center console)
• G206 (behind center of dash)
• G300 (at left "a" pillar)
• G301 (under center console)
• Glove box lamp
• High speed fan control relay
• Instrument cluster
• Main light switch
• Memory set switch
• Message center switch
• Multi- function switch
• Nca
• Parking aid disable switch
• Passenger safety belt buckle switch
• Passive anti-theft transceiver
• Red
• Restraints control module
• S204 (in main harness, near breakout to central junction box)
• S215 (in main harness, near breakout to center of dash)
• S216 (in main harness, near breakout to center of dash)
• S219 (in main harness, near breakout to center of dash)
• S223 (in main harness, near breakout to center of dash)
• S240 (air conditioning harness, near breakout to temperature blend door actuator)
• S267 (in radio jumper harness, near breakout to c237)
• S333 (in window regulator jumper assembly, near breakout to restraints control module)
• Temperature blend door actuator
• Traction control switch
• Trailer electronic brake control module
• W/ audiophile
• W/ automatic a/c
• W/ base rse
• W/ dvd
• W/ manual a/c
• W/o dvd

Ground Distribution Wiring Diagram (3 of 4) for Mercury Mountaineer 2005

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Mercury Mountaineer 2005:

• Battery
• C3203d
• Class ii
• Class iii/iv
• Data link connector (dlc)
• Daytime running lamps (drl) module
• Digital transmission range (dtr) sensor
• Driver side door lock switch
• Explorer
• Exterior rear view mirror switch
• Fuel pump driver module
• G100 (left front of engine compartment)
• G102 (left front of engine compartment)
• G106 (left front of engine compartment)
• G107 (4.6l: lower left side of engine)
• G401 (at right "d" pillar)
• Key pad switch assembly
• Left exterior rear view mirror
• Left front door ajar switch
• Low tire pressure module
• Memory set switch
• Mountaineer
• Nca
• Parking aid module (pam)
• Passenger side front door lock unit
• Passenger side rear door ajar switch
• Passenger side seat back heater
• Rear auxiliary junction box (ajb) (at right "d" pillar)
• Right exterior rear view mirror
• Right front door ajar switch
• Right power seat switch
• Right rear park/stop/ turn lamp
• Right rear side lamp
• Right reversing lamp
• Right tail lamp
• S125 (in dash panel to engine harness, near breakout to g100)
• S400 (in rear lamp connector harness, near breakout to right rear park/ stop/turn lamp)
• S410 (in suspension leveling compressor harness, in breakout to c405)
• S502 (in window regulator jumper assembly, near breakout to driver's side door lock switch)
• S602 (in window regulator jumper assembly, near breakout to right exterior rear view mirror)
• Shield
• Trailer tow battery charge relay
• Trailer tow connector
• Trailer tow parking lamp relay
• Trailer tow reversing lamp relay
• Vehicle security module
• Washer fluid level switch
• Windshield wiper motor

Ground Distribution Wiring Diagram (4 of 4) for Mercury Mountaineer 2005

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Mercury Mountaineer 2005:

• (behind left side of dash) central junction box (cjb)
• (w/ memory) driver seat module
• (w/o memory)
• Adjustable pedal switch
• At breakout to c340)
• Auto- dimming interior mirror unit
• Auxiliary a/c relay
• C341e
• C402b
• C504a
• C912a
• C912b
• C938a
• C938b
• C940a
• Cargo lamp assembly
• Driver side rear door ajar switch
• Driver side seat back heater
• Explorer
• Front
• Front interior/ map lamps assembly
• G400 (left rear of vehicle)
• G403 (left rear of vehicle)
• High mounted stoplamp
• Homelink module
• Indicator flasher relay
• Interior/map lamp assembly
• Left front lumbar adjust switch
• Left license plate lamp
• Left power seat switch
• Left rear park/stop/ turn lamp
• Left rear side lamp
• Left reversing lamp
• Left tail lamp
• Left vanity mirror lamp
• Liftgate ajar switch
• Liftgate door lock switch
• Liftgate glass actuator
• Liftgate glass release switch
• Link connector)
• Master window adjust switch
• Mountaineer
• Nca
• Parking brake switch
• Rear a/c control module
• Rear a/c control module (front)
• Rear interior/map lamp assembly
• Rear window defrost grid
• Rear wiper motor assembly
• Right license plate lamp
• Right vanity mirror lamp
• Roof opening panel motor assembly
• Roof opening panel switch
• S341 (in air conditioning harness, near breakout to c3007)
• S352 (in window regulator jumper assembly, near breakout to left power seat switch)
• S404 (in rear lamp connector harn, near breakout to c421)
• S404 (in rear lamp connector harness, near breakout to c421)
• S407 (at tailgate warning switch harness, in breakout to c494)
• S415 (in rear window wiper motor feed harness, near breakout to rear wiper motor assembly)
• S900 (in interior lamps harness, near breakout to left vanity mirror lamp)
• S903 (in interior illumination harness, near breakout to c340)
• S911 (in pia harness, at breakout to roof opening panel switch)
• Temperature blend door actuator
• W/ medium overhead console
• W/ overhead console
• W/o medium overhead console
• W/o overhead console

HEADLIGHTS

Headlights Wiring Diagram for Mercury Mountaineer 2005

List of elements for Headlights Wiring Diagram for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to c126) s123
• (in dash panel to engine harness, near breakout to g100) s133
• (in main harness, near breakout to central junction box) s260
• (not used)
• Air conditioning system
• Anti-theft system
• Auto
• Autolamp/ sunload sensor (behind glove box)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C202c
• C205a
• C220b
• C3203e
• Exterior lights system
• Fog lamp relay
• Fog lamp switch
• Fuse 10a
• Fuse 15a
• Fuse 20a
• G101 (left front of engine compt)
• G103 (right front of engine compt)
• G200 (at right ``a" pillar)
• Head
• Headlamp relay
• High beam ind
• High beam relay
• Hot at all times
• Instrument cluster
• Left front fog lamp
• Left headlamp
• Main light switch
• Microprocessor
• Multi-function switch
• Off
• Park
• Pass
• Pats ind
• Right front fog lamp
• Right headlamp
• S117
• S126
• S138
• S139
• S203 (in main harness, near breakout to central junction box)
• S204
• S205
• S229
• S252 (in main harness, near breakout to central junction box)
• S259
• Vehicle security module (vsm) (above right rear wheelwell)
• W/ autolamps

HORN

Horn Wiring Diagram for Mercury Mountaineer 2005

List of elements for Horn Wiring Diagram for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to c126) s124
• 20a
• Air bag sliding contact (at top of steering column)
• Air conditioning system
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C175b
• C218a
• C3203e
• Fuse 28
• G101 (left front of engine compt)
• G103 (right front of engine compt)
• Horn relay
• Horn switch
• Hot at all times
• Left horn (at left front of engine compt)
• Low tire pressure module (at right "c" pillar)
• Nca
• Powertrain control module (pcm) (at right side engine bulkhead)
• Right horn (at right front of engine compt)
• S170
• S172 (near breakout to windshield wiper motor)
• S328 (near breakout to passenger 1 side impact sensor)
• Speed control switch
• Vehicle security module (vsm) (above right rear wheelwell)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Mercury Mountaineer 2005

List of elements for Instrument Cluster Wiring Diagram for Mercury Mountaineer 2005:

• (at left "a" pillar)
• (at left "a" pillar) g300
• (at right "a" pillar) g200
• (at right "d" pillar) g401
• (left rear of vehicle) g400
• (left side of engine compt, on inner fenderwell) daytime running lamps (drl) module
• (near breakout to c238)
• (w/ manual a/c) (right front of engine compt, near radiator support)
• 4.0l 4.6l
• 4wd high ind
• 4wd low ind
• Abs ind
• Advance trac ind
• Air bag ind
• Air conditioning system
• Ambient air temperature sensor
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C220a
• C220b
• C270a
• C270d
• C270e
• C3203d
• C3203f
• Central junction box (cjb) (behind left side of dash)
• Charge ind
• Check engine ind
• Check fuel cap ind
• Check gauge ind
• Computer data lines system
• Coolant temperature gauge
• Data +
• Data -
• Defogger system
• Door ajar ind
• Driver side rear door ajar switch (rear of left rear door)
• Electronic compass
• Electronic throttle control ind
• Exterior lights system
• Fuel gauge
• Fuel tank unit (on right frame rail)
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 5a
• G200 (at right "a" pillar)
• G300
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• Gnd
• Headlights system
• High beam ind
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Hot w/ battery saver relay energized
• Ignition switch
• Ill
• Illumination (6 bulbs)
• Instrument cluster
• Interior lights system
• Key in ignition
• Left front door ajar switch (at rear of left front door)
• Liftgate ajar switch (lower center of liftgate)
• Liftgate glass ajar switch (in center of tailgate)
• Lights system interior
• Low break fluid level/ park break ind
• Low fuel ind
• Low oil pressure ind
• Low tire pressure ind
• Low washer fluid ind
• Message center switch
• Microprocessor
• Nca
• O/d off ind
• Oil pressure gauge
• Oil pressure switch (4.0l: left side of engine block) (4.6l: lower left side of engine block)
• Parking brake switch (under driver side dash panel)
• Passenger side rear door ajar switch (at rear of right rear door)
• Power windows system
• Right front door ajar switch (at rear of right front door)
• S204
• S206 (near breakout to central junction box)
• S219
• S223
• S232 (w/ dual zone eatc)
• S246
• S351 (near breakout to passenger 1 side impact sensor)
• S407
• S502
• S602
• Seat belt unbuckled ind
• Sig rtn
• Signal ind left turn
• Signal ind right turn
• Speed control ind
• Speedometer
• Sw sig
• Tachometer
• Tan
• Vehicle security module (vsm) (above right rear wheelwell)
• Voltmeter
• Vpwr
• Wiper/washer system

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram, Base for Mercury Mountaineer 2005

List of elements for Courtesy Lamps Wiring Diagram, Base for Mercury Mountaineer 2005:

• (at right "d" pillar) g401
• Accessory delay relay
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Battery saver relay
• C205b
• C220a
• C270a
• C270d
• C270e
• C270h
• Cargo lamp assembly
• Central junction box (cjb) (behind left side of dash)
• Closed
• Defeat
• Front interior/ map lamps assembly
• Fuel tank unit (on right frame rail)
• Fuse 10a
• Fuse 15a
• G200 (at right "a" pillar)
• G400 (left rear of vehicle)
• Glove box lamp
• Hot at all times
• Instrument cluster
• Interior
• Interior lamp
• Interior lamp relay
• Left exterior rear view mirror
• Liftgate open
• Main light switch
• Map lamps
• Microprocessor
• Nca
• Off
• Open
• Puddle lamp
• Rear interior/ map lamps assembly
• Right exterior rear view mirror
• S204
• S218 (in main harness, near breakout to center of dash)
• S229
• S232 (w/ dual zone eatc)
• S350 (in window regulator jumper assembly, near breakout to driver safety belt buckle switch)
• S502
• S602
• S903
• S904 (in interior illumination harness, near breakout to c340)
• W/o overhead console

Courtesy Lamps Wiring Diagram, Except Base (1 of 2) for Mercury Mountaineer 2005

List of elements for Courtesy Lamps Wiring Diagram, Except Base (1 of 2) for Mercury Mountaineer 2005:

• interior lamp relay
• Accessory delay relay
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Battery saver relay
• C205b
• C220a
• C270a
• C270d
• C270e
• C270h
• Central junction box (cjb) (behind left side of dash)
• Closed
• Defeat
• Fuel tank unit (on right frame rail)
• Fuse 10a
• Fuse 15a
• G200 (at right "a" pillar)
• G401 (at right "d" pillar)
• Glove box lamp
• Hot at all times
• Instrument cluster
• Interior
• Left exterior rear view mirror
• Main light switch
• Microprocessor
• Nca
• Open
• Puddle lamp
• Right exterior rear view mirror
• S204
• S218 (in main harness, near breakout to center of dash)
• S229
• S232 (w/ dual zone eatc)
• S350 (in window regulator jumper assembly, near breakout to driver safety belt buckle switch)
• S502
• S602

Courtesy Lamps Wiring Diagram, Except Base (2 of 2) for Mercury Mountaineer 2005

List of elements for Courtesy Lamps Wiring Diagram, Except Base (2 of 2) for Mercury Mountaineer 2005:

• (left rear of vehicle)
• Front interior/ map lamps assembly
• G400
• G400 (left rear of vehicle)
• Gnd
• Homelink module
• Interior lamp
• Left vanity mirror lamp
• Map lamps
• Off
• Right vanity mirror lamp
• S900
• S901 (in interior lamps harness, near breakout to left vanity mirror lamp)
• S911
• S912
• Vpwr
• W/ medium overhead console
• W/o medium overhead console

Instrument Illumination Wiring Diagram for Mercury Mountaineer 2005

List of elements for Instrument Illumination Wiring Diagram for Mercury Mountaineer 2005:

• (in main harness, near breakout to audio unit) s225
• (in main harness, near breakout to central junction box)
• Adjustable pedal switch
• Air bag sliding contact (at top of steering column)
• Audio
• Audio unit
• Audio/ climate control switch
• Audiophile
• Autolamp
• Base audio
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Bulbs
• C205a
• C205b
• C218a
• C220b
• C2237)
• C228a
• C228b
• C240b
• C290a
• C294b
• C938a
• C940a
• Driver side door lock switch
• Dvd player
• Eatc
• Electronic automatic temperature control (eatc) module (behind center of dash)
• Exterior lights system
• Four-wheel drive switch
• Function selector switch assembly
• Fuse 15a
• G200 (at right "a" pillar)
• G204 (at right "a" pillar)
• G300 (at left "a" pillar)
• G400
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• Head
• Hot at all times
• Instru- ment cluster
• Main light switch
• Manual a/c
• Message center switch
• Microprocessor
• Park off
• Parking aid disable switch
• Passenger side front door lock unit
• Rear a/c control module (front) (in roof panel)
• Rear a/c control module (rear) (w/o roof opening panel) (in roof panel)
• S203
• S204
• S216
• S219
• S223
• S229
• S259
• S267
• S349 (in seat control feed jumper harness, near breakout to right front speaker)
• S502
• S602
• S903
• S908
• S909 (in interior illumination harness, at breakout to c340)
• Speed control switch
• Traction control switch
• W/ dvd player

MEMORY SYSTEMS

Adjustable Pedal Wiring Diagram for Mercury Mountaineer 2005

List of elements for Adjustable Pedal Wiring Diagram for Mercury Mountaineer 2005:

• (at right ``a" pillar) g200
• (near breakout to c3052) s302
• (near breakout to data link connector) s221
• (near breakout to left power seat switch) s303
• (not used)
• (under center console) g301
• Adj pedal mtr
• Adj pedal pot
• Adj pedal sw
• Adjustable pedal memory potentiometer (under driver's side of dash)
• Adjustable pedal motor (on pedal assembly, left of brake pedal)
• Adjustable pedal switch
• C270a
• C341e
• C341f
• C341g
• C353a
• Central junction box (cjb) (behind left side of dash)
• Driver seat module (in driver's seat)
• Forward
• Fuse 30a
• G400 (left rear of vehicle)
• Ground
• Hot at all times
• Interior lights system
• Left power seat motor assembly (in driver seat)
• Lumbar)
• Memory seats circuit
• Memory set sw
• Pos sens +
• Pos sens -
• Power
• Rearward
• Red
• S305 (w/ power
• S333
• S352

Driver"s Memory Seat Wiring Diagram for Mercury Mountaineer 2005

List of elements for Driver"s Memory Seat Wiring Diagram for Mercury Mountaineer 2005:

• (in seat control feed jumper harness, near breakout to c3052)
• (near breakout to left power seat switch)
• Adj pedal mtr
• Adj pedal pot
• Adj pedal sw
• Adjustable pedal circuit
• C270a
• C270e
• C341e
• C341f
• C341g
• C353a
• C353b
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Driver seat module (in driver's seat)
• Front
• Front hght sens
• Front up/down
• Fuse 30a
• Fuse 5a
• Fwd
• G301 (under center console)
• G400 (left rear of vehicle)
• G401 (at right ``d" pillar)
• Ground
• Horiz sens
• Hot at all times
• Left power seat motor assembly (in driver seat)
• Left power seat switch
• Memory set sw
• Memory set switch
• Nca
• Pos sense +
• Pos sense -
• Power
• Pwr seat motor
• Pwr seat sw
• Rear
• Rear hgt sens
• Rear up/down
• Red
• Rwd
• S302
• S303
• S305 (w/ power lumbar)
• S333
• S352
• S502
• Seat
• Seat fwd/rwd
• Set
• Ubp diag

NAVIGATION

Parking Assistant Wiring Diagram for Mercury Mountaineer 2005

List of elements for Parking Assistant Wiring Diagram for Mercury Mountaineer 2005:

• (at left side of rear bumper) left outer parking aid sensor
• (at right side of rear bumper)
• (in breakout to inner right parking aid sensor) s408
• (in breakout to inner right parking aid sensor) s409
• C270a
• C270e
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Exterior lights system
• Exterior lights, mirrors systems
• Fuse 26 7.5a
• Fuse 27 7.5a
• G200 (at right ``a" pillar)
• G401 (at right ``d" pillar)
• Ground
• Hot in start or run
• Interior lights system
• Iso
• Left inner parking aid sensor (at left side of rear bumper)
• Left inner sensor input
• Left outer sensor input
• On/off signal
• Parking aid disable switch
• Parking aid module (pam) (at right ``d" pillar)
• Parking aid speaker
• Pnk
• Power
• Rear sounder (+)
• Rear sounder (-)
• Reverse input
• Right inner parking aid sensor (at right side of rear bumper)
• Right inner sensor input
• Right outer parking aid sensor
• Right outer sensor input
• S204
• S400
• S401 (near breakout to parking aid speaker)
• Sensor power
• Sensor return
• Status led

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Mercury Mountaineer 2005

List of elements for Power Distribution Wiring Diagram (1 of 4) for Mercury Mountaineer 2005:

• (diagram 3 of 4)
• (in dash panel to engine harness, near breakout to right side of engine compt)
• (in window regulator jumper assembly, near breakout to c3134) s313
• (left side of engine compt, at fender apron) battery junction box (bjb)
• Abs control module
• Adjustable pedal switch
• Auxiliary a/c relay
• Auxiliary junction box (ajb)
• Battery
• Battery junction box (bjb) (left side of engine compartment, at fender apron)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Blower motor relay
• C1035a
• C1035b
• C175b
• C205a
• C270c
• C3203e
• Central junction box (cjb) (behind left side of dash)
• Circuit breaker 30a
• Console 1 power point (in center console)
• Console 2 power point (in center console)
• Daytime running lamps (drl) module
• Engine compartment relay box (at right side of engine compartment)
• From b fuse 6 (bjb) (diagram 1 of 4)
• From fuse 8 (bjb) (diagram 1 of 4)
• Fuel pump relay
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse 40a
• Fuse 50a
• Fuse 5a
• Fuse 60a
• G200 (at right ``a'' pillar)
• Generator
• Harness, near breakout to joint connector 1) s170
• Horn relay
• Ignition relay
• Left turn trailer tow relay
• Main light switch
• Nca
• Parking lamp trailer tow relay
• Pcm power relay
• Powertrain control module (pcm)
• Rear auxiliary junction box (ajb) (at right ``d" pillar)
• Rear window defrost relay
• Rear wiper motor assembly
• Red
• Regulator jumper assembly, near breakout to g401) s412
• Reversing lamp trailer tow relay
• Right power seat switch
• Right turn trailer tow relay
• S116
• S119
• S143 (at battery cable assembly, near breakout to battery junction box)
• S216
• Starter motor
• Starter relay
• Tan/ (in main harness, near breakout to central junction box) s259
• To accessory delay relay (cjb) (diagram 3 of 4)
• To fuse 10 (cjb)
• To fuse 11 (bjb) (diagram 1 of 4)
• To fuse 15 (bjb) (diagram 3 of 4)
• To fuse 16 (cjb) (diagram 4 of 4)
• To fuse 26 (bjb) (diagram 1 of 4)
• To fuse 5 (cjb) (diagram 3 of 4)
• To ignition switch (diagram 2 of 4)
• Trailer electronic brake control module
• Trailer tow battery charge relay
• Transfer case high to low relay
• Transfer case low to high relay
• Vehicle security module (vsm)

Power Distribution Wiring Diagram (2 of 4) for Mercury Mountaineer 2005

List of elements for Power Distribution Wiring Diagram (2 of 4) for Mercury Mountaineer 2005:

• (diagram 4 of 4)
• (in engine control sensor & fuel charge harness, near breakout to fuel injector 4) s107
• (in engine control sensor & fuel charge harness, near breakout to fuel injector 7) s109
• (in main harness, near breakout to central junction box) s207
• (w/ audiophile)
• (w/o audiophile)
• 4.0l
• 4.6l
• Abs control module
• Abs test connector
• Acc
• Audio unit
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake pressure switch
• Brake shift interlock
• Breakout to ignition coil)
• C220a
• C220b
• C240b
• C270a
• C270b
• C270d
• C270e
• C270f
• C270g
• C270h
• C290a
• C310a
• Central junction box (cjb) (behind left side of dash)
• Coil on plug (cop) 1
• Coil on plug (cop) 2
• Coil on plug (cop) 3
• Coil on plug (cop) 4
• Coil on plug (cop) 5
• Coil on plug (cop) 6
• Coil on plug (cop) 7
• Coil on plug (cop) 8
• Connector 1) s113
• Digital digital transmission transmission range (dtr) sensor
• Electronic compass
• From fuse 23 (bjb) (diagram 1 of 4)
• From s207 (diagram 2 of 4)
• Fuse 10a
• Fuse 15a
• Fuse 2a
• Fuse 5a
• Ignition coil
• Ignition relay
• Ignition switch
• Ignition transformer capacitor
• Ignition transformer capacitor 1
• Ignition transformer capacitor 2
• Indicator flasher relay
• Instrument cluster
• Key in ignition switch
• Key removal inhibit solenoid
• Lock
• Nca
• Off
• Pcm power diode
• Pcm power relay
• Rear wiper motor assembly
• Red
• Restraints control module
• Run
• Start
• To fuse 25 (cjb) j
• To s113 (diagram 2 of 4)
• Windshield wiper motor

Power Distribution Wiring Diagram (3 of 4) for Mercury Mountaineer 2005

List of elements for Power Distribution Wiring Diagram (3 of 4) for Mercury Mountaineer 2005:

• (behind left side of dash) central junction box (cjb)
• (in dash panel to engine harness, near breakout to joint connector 1) s171
• (in main harness, near breakout to central junction box) s205
• (in main harness, near breakout to central junction box) s232
• (in radio jumper harness, near breakout to c2238) s266
• (left side of engine compartment, at fender apron) battery junction box (bjb)
• A/c clutch relay
• Accessory delay relay
• Audio unit
• Battery junction box (bjb) (left side of engine compartment, at fender apron)
• Brake pedal position switch
• C175b
• C202c
• C205a
• C220a
• C228b
• C240b
• C270a
• C270b
• C270c
• C270d
• C270g
• C3203e
• Driver seat module
• Dvd player
• Electronic automatic temperature control (eatc) module
• From circuit breaker 62 (bjb) (diagram 1 of 4)
• From fuse 1 (bjb) (diagram 1 of 4)
• From fuse 23 (bjb) (diagram 1 of 4)
• From ignition relay (bjb) (diagram 1 of 4)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• High beam relay
• Indicator flasher relay
• Instrument cluster
• Left front lumbar adjust switch
• Left power seat switch
• Main light switch
• Multi-function switch
• Nca
• Powertrain control module
• Rear window defrost relay
• Red
• Redundant pedal switch
• Roof opening panel motor assembly
• S149
• S305
• Subwoofer amplifier
• To fuse 11 (cjb) (diagram 4 of 4)
• Vehicle security module (vsm)
• W/ audiophile
• W/ dual zone eatc
• W/ dvd player
• W/ ivd
• W/ memory
• W/ power lumber
• W/o audiophile
• W/o memory
• Windshield wiper motor

Power Distribution Wiring Diagram (4 of 4) for Mercury Mountaineer 2005

List of elements for Power Distribution Wiring Diagram (4 of 4) for Mercury Mountaineer 2005:

• (behind left side of dash) central junction box (cjb)
• (in main harness, near breakout to central junction box) s247
• (in rear axle shifter motor control switch extension harness, in breakout to traction control switch) s264
• Accessory delay relay
• Auto-dimming interior mirror unit
• Autolamp/ sunload sensor
• Auxiliary a/c relay
• Battery charge trailer tow relay
• Battery saver relay
• Brake shift interlock
• C228b
• C270a
• C270b
• C270c
• C270d
• C270e
• C270f
• C270g
• C270h
• C294a
• C294b
• C3203e
• C341g
• C938a
• Data link connector (dlc)
• Daytime running lamps (drl) module
• Digital transmission range (dtr) sensor
• Driver seat module
• Driver side seat heater switch
• Electronic automatic temperature control (eatc) module
• Exterior rear view mirror switch
• Four- wheel drive switch
• From fuse 10 (cjb) (diagram 3 of 4)
• From fuse 17 (cjb) (diagram 4 of 4)
• From fuse 22 (cjb) (diagram 2 of 4)
• From fuse 26 (cjb) (diagram 4 of 4)
• From fuse 29 (bjb) (diagram 1 of 4)
• Front cigar lighter
• Function selector switch assembly
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse 7.5a
• G200 (at right ``a" pillar)
• Harness, near breakout to c2126) s263
• Left power seat switch
• Low tire pressure module
• Nca
• Neutral tow indicator
• Parking aid module (pam)
• Passenger side seat heater switch
• Passive anti-theft transceiver
• Positive crankcase ventilation heater
• Rear a/c control module
• Rear auxiliary junction box (ajb) (at right ``d" pillar)
• Red
• S216
• Temperature blend door actuator
• To fuse 20 (cjb) (diagram 4 of 4)
• To fuse 27 (cjb) (diagram 4 of 4)
• Traction control switch
• Transmission control switch
• Vehicle security module (vsm)
• W/ dual zone eatc
• W/ manual a/c

POWER DOOR LOCKS

Power Door Locks Wiring Diagram for Mercury Mountaineer 2005

List of elements for Power Door Locks Wiring Diagram for Mercury Mountaineer 2005:

• (near breakout to c3134) s315
• (near breakout to c3134) s318
• (near breakout to driver safety belt buckle switch)
• 1/2
• 3/4
• 5/6
• 7/8
• 9/0
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C270e
• C3203d
• C3203e
• C3203f
• Central junction box (cjb) (behind left side of dash)
• Door lock/ unlock relay
• Driver door unlock relay
• Driver side door lock switch
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse 5a
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• G401 (at right ``d" pillar)
• Ground
• Hot at all times
• Interior lights system
• Key pad switch assembly
• Left front door lock actuator (at rear of left front door)
• Left rear door lock actuator (at rear of left rear door)
• Liftgate door lock switch (at left rear corner of vehicle)
• Liftgate lock actuator (on center of liftgate)
• Lock
• Lock relay
• Microprocessor
• Passenger side front door lock unit
• Pwr
• Red
• Right front door lock actuator (at rear of right front door)
• Right rear door lock actuator (at rear of right rear door)
• S205
• S259
• S308
• S312 (near breakout to passenger's safety belt buckle switch)
• S502
• S602
• Sig rtn
• Unlk
• Unlock relay
• Vbatt
• Vehicle security module (vsm) (above right rear wheelwell)
• Vpwr
• Vref

POWER MIRRORS

Electronic Day/Night Mirror Wiring Diagram for Mercury Mountaineer 2005

List of elements for Electronic Day/Night Mirror Wiring Diagram for Mercury Mountaineer 2005:

• Auto-dimming interior mirror unit
• C270a
• Central junction box (cjb) (behind left side of dash)
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Exterior lights system
• Fuse 7.5a
• G400 (left rear of vehicle)
• Gnd
• Hot in start or run
• S309 (in window regulator jumper assembly, near breakout to driver safety belt buckle switch)
• S900
• Vpwr

Power Mirrors Wiring Diagram for Mercury Mountaineer 2005

List of elements for Power Mirrors Wiring Diagram for Mercury Mountaineer 2005:

• C270a
• Central junction box (cjb) (behind left side of dash)
• Defogger system
• Down
• Exterior rear view mirror switch
• Fuse 5a
• G401 (at right ``d" pillar)
• Hot at all times
• Interior lights system
• Left
• Left exterior rear view mirror
• Left/ right
• Mirror select
• Puddle lamp
• Red
• Right
• Right exterior rear view mirror
• S501 (in window regulator jumper assembly, near breakout to driver's side door lock switch)
• S502
• Up/ down m

POWER SEATS

Adjustable Pedal Wiring Diagram for Mercury Mountaineer 2005

List of elements for Adjustable Pedal Wiring Diagram for Mercury Mountaineer 2005:

• Adjustable pedal motor (on pedal assembly, left of brake pedal)
• Adjustable pedal switch
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Fuse 30a
• Fwd
• G200 (at right "a" pillar)
• G400 (left rear of vehicle)
• Hot at all times
• Interior lights system
• Red
• Rwd
• S221
• S313

Driver Power Seat Wiring Diagram for Mercury Mountaineer 2005

List of elements for Driver Power Seat Wiring Diagram for Mercury Mountaineer 2005:

• C270a
• Central junction box (cjb) (behind left side of dash)
• Dn up
• Entire seat
• Forward/rearward
• Front of seat
• Fuse 30a
• G400 (left rear of vehicle)
• Hot at all times
• Left power seat motor assembly (in driver seat)
• Left power seat switch
• Nca
• Rear of seat
• Red
• Rwd fwd
• S305 (w/ power lumbar)
• Up/down front
• Up/down rear

Heated Seats Wiring Diagram for Mercury Mountaineer 2005

List of elements for Heated Seats Wiring Diagram for Mercury Mountaineer 2005:

• (in seat control feed jumper harness, near breakout to c3051) s348
• (in seat control feed jumper harness, near breakout to left power seat switch) s314
• C228b
• C270a
• Central junction box (cjb) (behind left side of dash)
• Driver side seat back heater (in driver seat)
• Driver side seat cushion heater (in driver seat)
• Driver side seat heater switch
• Electronic automatic temperature control (eatc) module (behind center of dash)
• Fuse 20a
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• Hot in start or run
• Nca
• Passenger side seat back heater (in passenger seat)
• Passenger side seat cushion heater (in passenger seat)
• Passenger side seat heater switch
• S316

Lumbar Wiring Diagram for Mercury Mountaineer 2005

List of elements for Lumbar Wiring Diagram for Mercury Mountaineer 2005:

• (left rear of vehicle) g400
• C270a
• Central junction box (cjb) (behind left side of dash)
• Driver seat lumbar compressor motor
• Fuse 30a
• Hot at all times
• Left front lumbar adjust switch
• Out
• Pnk
• S305
• S352

Passenger Power Seat Wiring Diagram for Mercury Mountaineer 2005

List of elements for Passenger Power Seat Wiring Diagram for Mercury Mountaineer 2005:

• (at right "d" pillar) g401
• Adjustable pedal switch
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Dn up
• Entire seat
• Forward/rearward
• Front of seat
• Fuse 30a
• Hot at all times
• Nca
• Rear of seat
• Red
• Right power seat motor assembly (in passenger seat)
• Right power seat switch
• Rwd fwd
• S313
• Up/down front
• Up/down rear

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Mercury Mountaineer 2005

List of elements for Power Top/Sunroof Wiring Diagram for Mercury Mountaineer 2005:

• Accessory delay relay
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C270a
• C270c
• C270f
• Central junction box (cjb) (behind left side of dash)
• Circuit breaker 62 30a
• Down/ open
• Fuse 20a
• G400 (left rear of vehicle)
• Hot at all times
• Overhead console)
• Ptc 6a
• Roof opening panel motor assembly
• Roof opening panel switch
• S262
• S900
• Tan/red
• Up/ close
• Vbatt
• Vpwr
• W/ medium overhead console
• W/o medium overhead console

POWER WINDOWS

Power Windows Wiring Diagram for Mercury Mountaineer 2005

List of elements for Power Windows Wiring Diagram for Mercury Mountaineer 2005:

• (in window regulator jumper assembly,
• Accessory delay relay
• Battery junction box (bjb) (left side of engine compartment, at fender apron)
• C220a
• C270a
• C270c
• C270e
• C3203e
• C3203f
• C504a
• C504b
• Central junction box (cjb) (behind left side of dash)
• Circuit breaker 62 30a
• Driver side front power window motor (in center of left front door)
• Fuse 17 15a
• Fuse 2 30a
• Fuse 6 60a
• G400 (left rear of vehicle)
• Hot at all times
• Instrument cluster
• Left rear
• Left rear power window motor (in center of left rear door)
• Left rear window adjust switch
• Liftgate glass actuator (on center of liftgate)
• Liftgate glass release relay
• Liftgate glass release switch (in center of tailgate)
• Master window adjust switch
• Microprocessor
• Near breakout to passenger 1 side impact sensor) s343
• One-touch down
• Passenger
• Passenger side front power window motor (in center of right front door)
• Passenger side window adjust switch
• Right rear
• Right rear power window motor (in center of right rear door)
• Right rear window adjust switch
• S342 (in window regulator jumper assembly, near breakout to left rear speaker)
• S407
• Vehicle security module (above right rear wheelwell)

RADIO

Radio Wiring Diagram, with Audiophile System for Mercury Mountaineer 2005

List of elements for Radio Wiring Diagram, with Audiophile System for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to left horn) s168
• Air bag contact
• Air bag sliding contact (at top of steering column)
• Air conditioning system
• Antenna
• Audio unit
• Audio/ climate control switch
• C175b
• C218a
• C270d
• C270f
• C270g
• C290a
• C290c
• Central junction box (cjb) (behind left side of dash)
• Circuit breaker ptc 1 6a
• Cruise control system
• Enable
• Fan down
• Fan up
• Fuse 20a
• Fuse 5a
• G200 (at right "a" pillar)
• G204 (at right "a" pillar)
• Gnd
• Hot at all times
• Hot in start
• Hot w/ acc delay relay energized
• Illum input
• Interior lights system
• L front spkr (+)
• L front spkr (-)
• L rear spkr (+)
• L rear spkr (-)
• Left front speaker
• Left rear speaker
• Media
• Nca
• Next
• Powertrain control module (pcm) (at right side engine bulkhead)
• R front spkr (+)
• R front spkr (-)
• R rear spkr (+)
• R rear spkr (-)
• Right front speaker
• Right rear speaker
• S229
• S262
• Shield
• Subwoofer
• Subwoofer amplifier (at right rear quarterpanel)
• Subwoofer high +
• Subwoofer high -
• Temp down
• Temp up
• Vbatt
• Vol down
• Vol up
• Vpwr
• Vss
• Windshield wiper motor (at left rear of engine compt)

Radio Wiring Diagram, without Audiophile System for Mercury Mountaineer 2005

List of elements for Radio Wiring Diagram, without Audiophile System for Mercury Mountaineer 2005:

• (at right "a" pillar) g200
• Air bag contact
• Air bag sliding contact (at top of steering column)
• Air conditioning system
• Antenna
• Audio unit
• Audio/ climate control switch
• C175b
• C218a
• C240a
• C240b
• C270d
• C270f
• C270g
• Central junction box (cjb) (behind left side of dash)
• Circuit breaker ptc 1 6a
• Cruise control system
• Fan down
• Fan up
• Fuse 20a
• Fuse 5a
• Fused ignition
• G204 (at right "a" pillar)
• Ground
• Hot at all times
• Hot in start
• Hot with acc delay relay energized
• Illum return
• Interior lights system
• L front spkr (+)
• L front spkr (-)
• L rear spkr (+)
• L rear spkr (-)
• Left front speaker
• Left rear speaker
• Media
• Nca
• Next
• Power
• Powertrain control module (pcm) (at right side engine bulkhead)
• R front spkr (+)
• R front spkr (-)
• R rear spkr (+)
• R rear spkr (-)
• Right front speaker
• Right rear speaker
• S168 (in dash panel to engine harness, near breakout to left horn)
• S215
• S229
• S262
• Temp down
• Temp up
• Vehicle speed
• Vol down
• Vol up
• Vss
• Windshield wiper motor (at left rear of engine compt)

Rear Seat Entertainment Wiring Diagram, with Audiophile System for Mercury Mountaineer 2005

List of elements for Rear Seat Entertainment Wiring Diagram, with Audiophile System for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to left horn) s168
• Air bag contact
• Air bag sliding contact (at top of steering column)
• Air conditioning system
• Antenna
• Asyson
• Audio system on
• Audio unit
• Audio/ climate control switch
• C175b
• C218a
• C270d
• C270f
• C270g
• C290a
• C290b
• C290c
• Central junction box (cjb) (behind left side of dash)
• Circuit breaker ptc 1 6a
• Cruise control system
• Dvd left +
• Dvd left -
• Dvd player
• Dvd right +
• Dvd right -
• Enable
• Fan down
• Fan up
• Fuse 20a
• Fuse 5a
• G200 (at right "a" pillar)
• G204 (at right "a" pillar)
• Gnd
• Ground
• Hot at all times
• Hot in start
• Hot w/ acc delay relay energized
• Illum
• Illum input
• Interior lights system
• L front spkr (+)
• L front spkr (-)
• L rear spkr (+)
• L rear spkr (-)
• Left front speaker
• Left rear speaker
• Media
• Nca
• Next
• Powertrain control module (pcm) (at right side engine bulkhead)
• Protocol a
• Protocol b
• R front spkr (+)
• R front spkr (-)
• R rear spkr (+)
• R rear spkr (-)
• Red
• Right front speaker
• Right rear speaker
• S262
• S265
• S266
• S267
• S268 (near breakout to c2237)
• Shield
• Spkr lf+
• Spkr lf-
• Spkr rt+
• Spkr rt-
• Subwoofer
• Subwoofer amplifier (at right rear quarterpanel)
• Subwoofer high +
• Subwoofer high -
• Tan
• Temp down
• Temp up
• Vbatt
• Vol down
• Vol up
• Vpwr
• Vss
• Windshield wiper motor (at left rear of engine compt)

Rear Seat Entertainment Wiring Diagram, without Audiophile System for Mercury Mountaineer 2005

List of elements for Rear Seat Entertainment Wiring Diagram, without Audiophile System for Mercury Mountaineer 2005:

• (at right "a" pillar) g200
• (in dash panel to engine harness, near breakout to left horn) s168
• Air bag contact
• Air bag sliding contact (at top of steering column)
• Air conditioning system
• Antenna
• Asyson
• Audio system on
• Audio unit
• Audio/ climate control switch
• C175b
• C218a
• C240a
• C240b
• C270d
• C270f
• C270g
• Central junction box (cjb) (behind left side of dash)
• Circuit breaker ptc 1 6a
• Cruise control system
• Dvd left +
• Dvd left -
• Dvd player
• Dvd right +
• Dvd right -
• Fan down
• Fan up
• Fuse 20a
• Fuse 5a
• Fused ignition
• G204 (at right "a" pillar)
• Ground
• Hot at all times
• Hot in start
• Hot with acc delay relay energized
• Illum
• Illum return
• Interior lights system
• L front spkr (+)
• L front spkr (-)
• L rear spkr (+)
• L rear spkr (-)
• Left front speaker
• Left rear speaker
• Medium
• Nca
• Next
• Power
• Powertrain control module (pcm) (at right side engine bulkhead)
• Protocol a
• Protocol b
• R front spkr (+)
• R front spkr (-)
• R rear spkr (+)
• R rear spkr (-)
• Red
• Right front speaker
• Right rear speaker
• S262
• S265
• S266
• S267
• Shield
• Spkr lf+
• Spkr lf-
• Spkr rt+
• Spkr rt-
• Tan
• Temp down
• Temp up
• Vehicle speed
• Vol down
• Vol up
• Vss
• Windshield wiper motor (at left rear of engine compt)

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Mercury Mountaineer 2005

List of elements for Shift Interlock Wiring Diagram for Mercury Mountaineer 2005:

• (on steering column)
• All times
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Brake pedal position switch (above brake pedal)
• Brake shift interlock
• C175b
• C220a
• C220b
• C270e
• C270f
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Fuse 13 5a
• Fuse 15 15a
• Fuse 23 30a
• Fuse 25 15a
• Fuse 26 7.5a
• G200 (at right "a" pillar)
• Hot at
• Hot in start
• Ignition switch
• Instrument cluster
• Key removal inhibit solenoid
• Micro switch
• Microprocessor
• Nca
• O/d off ind
• Or run
• Powertrain control module (pcm) (at right side engine bulkhead)
• Red
• S120 (w/o ivd: in dash panel to engine harness, near breakout to windshield wiper motor) (w/ ivd: in dash panel to engine harness, near breakout to left horn)
• S171 (w/o ivd)
• S173
• S223
• S232 (w/ dual zone eatc) (in main harness, near breakout to central junction box)
• Transmission control switch

STARTING/CHARGING

Charging Wiring Diagram for Mercury Mountaineer 2005

List of elements for Charging Wiring Diagram for Mercury Mountaineer 2005:

• 4.ol
• Battery
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Bus +
• Bus -
• C102c
• C120a
• C175b
• C220a
• C220b
• C270h
• Central junction box (cjb) (behind left side of dash)
• Charge indicator
• Computer data lines system
• Fuse 5a
• G106 (left front of engine compartment)
• G107 (4.6l: lower left side of engine)
• Generator
• Hot in start or run
• Instrument cluster
• Micro- processor
• Powertrain control module (pcm) (at right side engine bulkhead)
• Red
• S143
• S144
• Starter motor

Starting Wiring Diagram for Mercury Mountaineer 2005

List of elements for Starting Wiring Diagram for Mercury Mountaineer 2005:

• Acc
• Battery
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C175b
• C270b
• C270d
• Central junction box (cjb) (behind left side of dash)
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Fuse 10a
• Fuse 30a
• Fuse 50a
• G106 (left front of engine compt)
• G107 (4.6l: lower left side of engine)
• Ignition switch
• Lock
• Off
• Powertrain control module (pcm) (at right side engine bulkhead)
• Red
• Run
• S115
• Start
• Starter motor
• Starter relay

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram (1 of 2) for Mercury Mountaineer 2005

List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Mercury Mountaineer 2005:

• (in main harness, near breakout to audio unit)
• Air bag ind
• Air bag ind ctrl
• Air bag monitor
• Battery
• Battery junction box (bjb) (left side of engine compartment, at fender apron)
• C175b
• C220a
• C220b
• C228b
• C270e
• C310a
• C310b
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Data link connector (dlc) (behind left side of dash)
• Driver 1 side impact sensor (at base of left "b" pillar)
• Driver safety belt buckle pretensioner (under driver seat)
• Driver safety belt buckle switch (under driver seat)
• Dvr air bag stage 2 +
• Dvr air bag stage 2 -
• Electronic automatic temperature control (eatc) module (behind center of dash)
• Fuse 10a
• Fuse 15a
• G205 (under center console)
• G301 (under center console)
• Hot at all times
• Hot in run or start
• Instrument cluster
• Iso
• Logic ground
• Micro- processor
• Nca
• Note: 1: unbuckled 2: buckled
• Pass air bag stage 1 +
• Pass air bag stage 1 -
• Pass air bag stage 2 +
• Pass air bag stage 2 -
• Passenger 1 side impact sensor (at base of right "b" pillar)
• Passenger safety belt buckle pretensioner (under passenger seat)
• Passenger safety belt buckle switch (under passenger seat)
• Pin shorting bars engaged when module connector is disconnected from harness (shorting bars are connected between pins: 1-2, 3-4, 5-6 & 13-14 c310a 3-4 & 5-6 c310b
• Powertrain control module (pcm) (at right side engine bulkhead)
• Red
• Ref/gnd
• Restraints control module (below center console)
• S149
• S228
• S232 (in main harness, near breakout to central junction box)
• S333 (in window regulator jumper assembly, near breakout to restraints control module)
• See note
• Shorting bar
• Signal
• Signal +
• Signal -
• Stage 1 +
• Stage 1 -
• Tone
• Tone driver
• Vbatt
• Vpwr
• W/ dual zone eatc
• W/ right safety canopy

Supplemental Restraints Wiring Diagram (2 of 2) for Mercury Mountaineer 2005

List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Mercury Mountaineer 2005:

• Air bag sliding contact (at top of steering column)
• C216a
• C216b
• C218b
• Driver 2 side impact sensor (w/ right safety canopy) (at left rear wheelwell)
• Driver air bag unit (under horn pad)
• Front impact severity sensor (at front of engine compartment)
• Left safety canopy (at left "c" pillar)
• Left seat track position sensor
• Nca
• Passenger 2 side impact sensor (w/ right safety canopy) (at right "c" pillar)
• Passenger air bag module (behind right side of dash)
• Red
• Resistor "a" (on left "c" pillar)
• Right safety canopy (w/ right safety canopy) (at right "c" pillar)
• Shorting bar
• W/ safety canopy
• W/o safety canopy

TRANSMISSION

4WD Wiring Diagram for Mercury Mountaineer 2005

List of elements for 4WD Wiring Diagram for Mercury Mountaineer 2005:

• (in dash panel to engine harness, near breakout to right side of engine compt)
• (main harness, near breakout to c2126) s263
• 87a
• Battery junction (bjb) box (left side of engine compt, at fender apron)
• Brake pedal position switch (above brake pedal)
• Brk ped pos sw
• C175b
• C175t
• C270f
• Central junction box (cjb) (behind left side of dash)
• Cltch coil pwr
• Cltch coil rtn
• Computer data lines system
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Engine compartment relay box (right side of engine compt)
• Four-wheel drive switch
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse 5a
• G102 (left front of engine compartment)
• G103 (right front of engine compt)
• High
• Hot at all times
• Hot in run or start
• Illum
• Ind cntrl
• Interior lights system
• Low
• Magnetic clutch coil
• N tow sw
• Nca
• Neutral sw
• Neutral tow indicator
• Off
• Other
• Position 1
• Position 2
• Position 3
• Position 4
• Position ind
• Position sw rtn
• Powertrain control module (pcm) (at right side engine bulkhead)
• S114
• S116
• S119
• S120 (w/ivd: in dash panel to engine harness, near breakout to left horn) (w/o ivd: in dash panel to engine harness, near breakout to windshield wiper motor)
• S149
• Sig rtn
• To engine harness, near breakout to g100)
• Transfer case assembly controls (on left side of transfer case)
• Transfer case high to low relay
• Transfer case low to high relay
• Trns shft mot
• Vbatt
• Vref
• W/ 1 speed

A/T Wiring Diagram for Mercury Mountaineer 2005

List of elements for A/T Wiring Diagram for Mercury Mountaineer 2005:

• (4.0l)
• (4.6l)
• (behind left side of dash) data link connector
• (dlc)
• (in dash panel to engine harness, near breakout to a/c clutch cycling pressure switch)
• (in dash panel to engine harness, near breakout to c1168)
• (in engine control sensor & fuel charge harness, near breakout to powertrain control module)
• (in transmission control selector neutral switch harness, near breakout to powertrain control module)
• (main harness, near breakout central to junction box)
• (main harness, near breakout to left side of dash)
• (right rear of engine compt)
• (right side engine bulkhead) powertrain control module (pcm)
• (w/ ivd: in dash panel to engine harness, near breakout to left horn) (w/o ivd: in dash panel to engine harness, near breakout to windshield wiper motor)
• (window regulator jumper harness, near breakout for center of dash)
• Acc
• Battery junction (bjb) box (left engine compt, at fender apron)
• Battery junction (bjb) box (left side of engine compt, at fender apron)
• Brake in
• Brake pedal position switch (above brake pedal)
• C175b
• C175e
• C175t
• C220a
• C220b
• C270f
• Can +
• Can -
• Central junction box (cjb) (behind left side of dash)
• Cht
• Cylinder head temperature sensor (4.6l) (top front of cylinder head)
• Digital transmission range (dtr) sensor (lower left side of automatic transmission)
• Ect
• Engine controls system
• Engine coolant temperature sensor (4.0l) (top right of engine, near injector harness)
• Feps
• Fuse 15a
• Fuse 40a
• Fuse 5a
• G101 (left front engine compt)
• G104
• G105
• Ground
• Hot at all times
• Hot in run or start
• Ignition switch
• Instrument cluster
• Intermediate shaft speed (iss) sensor (top left side of automatic transmission)
• Iss
• Lock
• Microprocessor
• Nca
• O/d off
• Off
• Oss
• Output shaft speed (oss) sensor (left rear of automatic transmission)
• Pcm power diode
• Pcm power relay
• Pcs a
• Pcs b
• Pcs c
• Power
• Pressure control solenoids
• Red
• Return
• S101
• S102
• S120
• S130
• S132
• S148
• S149
• S173
• S207 (in main harness, near breakout to central junction box)
• S209
• S212
• S232
• S301
• S304
• Shift solenoids
• Sig 1
• Sig 2
• Sig rtn
• Ss a
• Ss b
• Ss c
• Ss d
• Start
• Tcc sol
• Tcs
• Tft
• Throttle position (tps) sensor (top of throttle body)
• Torque conv clutch solenoid
• Tr1
• Tr2
• Tr3a
• Tr4
• Trans- mission control switch
• Transmission fluid temperature sensor
• Transmission solenoid body assembly (on lower left of automatic transmission)
• Tss
• Turbine shaft speed (tss) sensor (on top left side of automatic transmission)
• Vbatt
• Vref

WARNING SYSTEMS

Key Reminder & Seat Belt Warning Wiring Diagram for Mercury Mountaineer 2005

List of elements for Key Reminder & Seat Belt Warning Wiring Diagram for Mercury Mountaineer 2005:

• (behind left side of dash) data link connector (dlc)
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• Breakout for center of dash)
• C205a
• C220a
• C220b
• C270a
• C270d
• C270e
• C270h
• C310a
• C310b
• C3203d
• C3203e
• C3203f
• Central junction box (cjb) (behind left side of dash)
• Door ajar ind
• Driver safety belt buckle switch (under driver seat)
• Driver side rear door ajar switch (at rear of left rear door)
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 5a
• G102 (left front of engine compt)
• G205 (under center console)
• G301 (under center console)
• G400 (left rear of vehicle)
• G401 (at right "d" pillar)
• Head
• Hot at all times
• Hot in start or run
• Ignition switch
• Ind
• Ind ctrl
• Instrument cluster
• Key in ignition switch
• Left front door ajar switch (at rear of left front door)
• Liftgate ajar switch (lower center of liftgate)
• Liftgate glass ajar switch (in center of tailgate)
• Main light switch
• Microprocessor
• Nca
• Off
• Park
• Pass- enger safety belt buckle switch (under passenger seat)
• Passenger side rear door ajar switch (at rear of right rear door)
• Restraints control module (below center console)
• Right front door ajar switch (at rear of right front door)
• S125
• S232 (w/ dual zone eatc)
• S246 (in main harness, near breakout to c238)
• S259
• S261
• S307 (in window regulator jumper harness, near
• S333
• S407
• S502
• S602
• Sw sig
• Tan
• Tone drv
• Ubp
• Unbuckled seat belt
• Vbatt
• Vehicle security module (vsm) (above right rear wheelwell)
• Vpwr
• Washer fluid level switch (right front of engine compt)

Tire Pressure Monitoring Wiring Diagram for Mercury Mountaineer 2005

List of elements for Tire Pressure Monitoring Wiring Diagram for Mercury Mountaineer 2005:

• C270a
• Can bus +
• Can bus -
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Fuse 5a
• G401 (at right "d" pillar)
• Gnd
• Horn rly ctrl
• Horns system
• Hot at all times
• Hot in run or start
• Low tire pressure module (at right "c" pillar)
• Vbatt
• Vpwr

WIPER/WASHER

Front Wiper/Washer Wiring Diagram for Mercury Mountaineer 2005

List of elements for Front Wiper/Washer Wiring Diagram for Mercury Mountaineer 2005:

• 1. off 2. interval 1 3. interval 2 4. interval 3 5. interval 4 6. interval 5 7. low 8. high
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C175b
• C202a
• C220a
• C220b
• C270b
• C270e
• Central junction box (cjb) (behind left side of dash)
• Front washer pump relay
• Fuse 15 5a
• Fuse 21 30a
• Fuse 4 5a
• G101 (left front of engine compt)
• G102 (left front of engine compt)
• G300 (at left "a" pillar)
• G403 (left rear of vehicle)
• Hall sensor
• Hot at all times
• Hot in run or acc
• Instrument cluster
• Interval switch
• Low washer fluid ind
• Micro processor
• Microprocessor
• Multi- function switch
• Powertrain control module(pcm) (at right side of engine bulkhead)
• Rear washer pump relay
• Rear wiper motor assembly (at center of liftgate)
• S125
• S168 (near breakout to left horn)
• S219
• S415
• Washer fluid level switch (right front of engine compt)
• Washer switch
• Windshield washer pump motor (in washer reservoir)
• Windshield wiper motor (at left rear of engine compt)
• Wiper high/low relay
• Wiper run/park relay

Rear Washer/Wiper Wiring Diagram for Mercury Mountaineer 2005

List of elements for Rear Washer/Wiper Wiring Diagram for Mercury Mountaineer 2005:

• (at center of liftgate) rear wiper motor assembly
• 1. off 2. variable
• 3. on 4. wash
• Battery junction box (bjb) (left side of engine compt, at fender apron)
• C202a
• C270a
• Central junction box (cjb) (behind left side of dash)
• Front washer pump relay
• Fuse 15 5a
• Fuse 30 20a
• G101 (left front of engine compt)
• G300 (at left "a" pillar)
• G400 (left rear of vehicle)
• G403 (left rear of vehicle)
• Hot at all times
• Hot in run or acc
• Intermittent wipe
• Microprocessor
• Multi- function switch
• Park
• Rear washer pump relay
• Rear wiper relay
• Run
• S219
• S415
• Windshield washer pump motor (in washer reservoir)
• Windshield wiper motor (at left rear of engine compartment)