All Wiring Diagrams for Ford Expedition 1999

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Ford Expedition 1999

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Ford Expedition 1999:

(not used)
87a
Amb temp sens input
Ambient temperature sensor (left front of engine compartment)
Audio/climate control switch assembly
Aux rly ctrl
Battery
Battery junction box
Blend door (wiper)
Blend door 5v+
Blend door actuator
Blend door actuator (behind center of dash)
Blend door gnd
Blower ctrl out
Blower motor (right side of engine compartment)
Blower motor speed controller (behind right side of dash)
Blower relay
Blower/flasher relay block (behind center of dash)
C205
C242
C243
C280
C281
C282
Central junction box
Clockspring assembly (base of steering column)
Data (+)
Data (-)
Eatc clutch rly out
Electronic automatic temperature control (eatc) module (center of dash)
Front panel illum
Fuse 10a
Fuse 5a
Fuse 105 40a
G200 (lower right kick panel)
Ground
Hot at all times
Hot in run
In-car temp sens
In-car temperature sensor (behind dash)
Inst panel lp feed
Interior lights system
Nca
Power
S200 (main body harness, near breakout to redundant steering control module)
S203 (main body harness, near breakout to passenger airbag)
S292 (main body harness, near breakout to electronic automatic temperature (eatc) module)
S293 (main body harness, near breakout to electronic automatic temperature (eatc) module)
Sensor ground
Steering whl sw
Sunload sens input
Sunload sensor (top right side of dash)

Automatic A/C Wiring Diagram (2 of 3) for Ford Expedition 1999

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List of elements for Automatic A/C Wiring Diagram (2 of 3) for Ford Expedition 1999:

(interior lamp feed harness, near breakout to in-line connector, left front of left rear wheelwell)
(interior lamp feed harness, near breakout to left side rail lamp)
(near fuel tank) g402
(not used)
(seat belt retractor harness, near breakout to rpo relay block 2) s424
Auxiliary a/c blend actuator (behind left rear side panel)
Auxiliary a/c control module (behind left rear side panel)
Auxiliary a/c mode actuator (behind left rear side panel)
Battery junction box (left side of engine compartment)
C242
C243
Central junction box
Connector (dlc) (behind center of dash)
Console blower relay
Control sensor harness, near breakout to power distribution box)
Data link
Engine control system
Front blend potentiometer (in center of headliner)
Front mode potentiometer (in center of headliner)
Fuse 10a
Fuse 15a
Fuse 5a
Hot in run
Instrument cluster system
Powertrain control module (pcm) (right side of engine compartment)
Rear blend potentiometer (center of headliner)
Red
Relay block 2)
Rpo relay block 1 (in dash, above passenger air bag)
S2007 (main body harness, near breakout to central junction box)
S2008 (main body harness, near breakout to instrument cluster)
S228 (main body harness, in breakout to junction box fuse/ relay panel)
S295 (main body harness, near breakout to electronic automatic temperature control (eatc) module)
S422
S918
S919
S920
S921
Seat belt retractor harness, near breakout to auxiliary a/c mode actuator)
Solid state
Wide open throttle relay

Automatic A/C Wiring Diagram (3 of 3) for Ford Expedition 1999

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List of elements for Automatic A/C Wiring Diagram (3 of 3) for Ford Expedition 1999:

(interior lamp feed harness, near breakout to in-line connector in center of headliner) s926
(lower right kick panel) g200
(near fuel tank) g402
0.6 ohms
0ff
2.7 ohms
3.8 ohms
87a
A/c clutch cycling pressure switch (right rear corner of engine compartment)
A/c clutch diode (taped in harness, near a/c compressor clutch)
A/c compressor clutch solenoid (left side of engine compartment)
A/c pressure cutoff switch (right side of engine compartment)
Auxiliary a/c blower motor resistor (behind left rear side panel)
Auxiliary a/c relay
Auxiliary blower motor (behind left rear side panel)
Console blend door actuator (left center of floor console)
Console blower motor (inside center of floor console)
Console blower motor resistor (inside center of floor console)
Front blower motor switch
Fuse 30a
G102 (rear of right fender apron)
Hot at all times
Low
Low med
Med
Off
Ohms
Power distribution box
Rear
Rear blower motor switch
Rear integrated control panel (ricp) (rear blower switch)
Rear mode potentiometer (center of headliner)
Red/ pnk
Red/pnk
Rpo relay block no.2 (behind left side rear panel)
S102 (engine control sensor harness, near breakout to starter motor relay)
S322 (console panel harness, near breakout to console blower motor)
S423 (seat belt retractor harness, near breakout to auxiliary a/c mode blower motor resistor)
S916 (interior lamp feed harness, near breakout to left side rail lamp)

Manual A/C Wiring Diagram (1 of 2) for Ford Expedition 1999

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List of elements for Manual A/C Wiring Diagram (1 of 2) for Ford Expedition 1999:

(heater blower motor feed harness, in breakout to blower motor resistor) s125
(interior lamp feed harness, near breakout to in-line connector, left front of left rear wheelwell)
(interior lamp feed harness, near breakout to left side rail lamp) s918
(lower right kick panel) g200
(main harness in breakout to fuse/relay panel)
(main harness, near breakout to in-line connector) s279
(main harness, near breakout to instrument cluster) s222
(main harness, near breakout to rpo relay block)
(near fuel tank) g403
87a
Auxiliary a/c blend actuator (behind left rear side panel)
Auxiliary a/c control module (behind left rear side panel)
Auxiliary a/c mode actuator (behind left rear side panel)
Battery junction box
Blend door actuator (behind center of dash)
Blend door pot
Blower motor (right side of engine compartment)
Blower motor switch
Blower relay
Blower/flasher relay block (behind center of dash)
C217
C218
C219
C220
C242
C243
Central junction box
Cold
Def
Def/flr
Floor
Flr & def
Front blend potentiometer (in center of headliner)
Front mode potentiometer (in center of headliner)
Function selector switch
Fuse 10a
Fuse 15a
Fuse 40a
Fuse 5a
Hot at all times
Hot in run
Illumination
Interior lights system
Max a/c
Med hi
Med lo
Mode selector switch
Norm a/c
Off
Pan & flr
Pan/flr
Panel
Pnk
Rear blend potentiometer (in center of headliner)
Rear mode potentiometer
Red
S112 (engine sensor harness, left rear of engine compartment)
S202 (main harness, in breakout to blower/ flasher relay block)
S203
S228
S422 (seat belt retractor harness, near breakout to auxiliary a/c mode switch)
S424 (seat belt retractor harness, near breakout to rpo relay box)
S919
S920 (interior lamp feed harness, near breakout to in-line connector, left front of left rear wheelwell)
S921 (interior lamp feed harness, near breakout to in-line connector, left front of left rear wheelwell)
Solid state
Warm

Manual A/C Wiring Diagram (2 of 2) for Ford Expedition 1999

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List of elements for Manual A/C Wiring Diagram (2 of 2) for Ford Expedition 1999:

(lower right kick panel inner) g200
(lower right kick panel) g200
(near fuel tank) g402
.6 ohms
0.6 ohms
0ff
2.7 ohms
3.8 ohms
87a
A/c clutch cycling pressure switch (right rear corner of engine compartment)
A/c clutch diode (taped in harness, near a/c compressor clutch)
A/c compressor clutch solenoid (right side of engine compartment)
A/c pressure cut off switch (right side of engine compartment)
Accs
Auxiliary a/c blower motor (rear floor panel)
Auxiliary a/c blower motor resistor (behind left rear side panel)
Auxiliary a/c relay
Battery junction box
Blower motor resistor (near blower motor)
Console blend door actuator (left center of floor console)
Console blower motor (inside center of floor console)
Console blower motor resistor (inside center of floor console)
Engine controls system
Front blower motor switch
Fuse 30a
G102 (rear of right fender apron)
Hot at all times
Med
Nca
Off
Ohms
Powertrain control module (pcm) (right side of engine compartment)
Rear
Rear blower motor switch
Rear integrated control panel (ricp) (rear blower switch)
Red/pnk
Rpo relay box 2 (in dash, above passenger airbag)
S202 (main harness, near breakout to blower/flasher relay block)
S204 (main harness near breakout to instrument cluster)
S322 (console panel harness, near breakout to console blower motor)
S423 (seat belt retractor harness, near breakout to auxiliary a/c mode blower resistor assembly)
S916 (interior lamp feed harness, near breakout to left side rail lamp)
Wide open throttle relay

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams for Ford Expedition 1999

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List of elements for Anti-lock Brake Wiring Diagrams for Ford Expedition 1999:

(engine sensor harn, left rear of engine compartment)
(under center of dash) data link connector
4-wheel anti-lock brakes system (4wabs) module (left side of engine compt)
4wabs ind ctrl
Abs active
Abs active input
Active 4wl input
Anti-lock indicator
Battery junction box (on left side of engine compartment)
Bias ckt
Bpp switch feed
Brake fluid level indicator switch (on brake fluid reservoir)
Brake fluid level sw
Brake pedal position (bpp) switch (under left side of dash)
C146
C147
C242
C243
Central junction box (under left side of dash)
Computer data lines system
Diagnostic circuit
Differential speed sensor (dss) (on rear axle)
Fuse 50a
Fuse 5a
G108 (left front radiator support)
G200 (lower left kick panel)
Generic electronic module (gem) (behind left side of dash)
Ground
Hot at all times
Hot in run
Ignition feed
Instrument cluster
Left front 4wabs wheel sensor (at wheel)
Left front sensor (high)
Left front sensor (low)
Low
Micro- processor
Ohm
Power (b+)
Rear sensor (high)
Rear sensor (low)
Red/pnk
Right front 4wabs wheel sensor (at wheel)
Right front sensor (high)
Right front sensor (low)
S106
S130
S156 (engine sensor harn, near breakout to 4wabs module)
S208
S229
S265
Tan/red
Washer fluid lamp

ANTI-THEFT

Forced Entry Wiring Diagram for Ford Expedition 1999

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List of elements for Forced Entry Wiring Diagram for Ford Expedition 1999:

(behind left side of dash) generic electronic module (gem)
(body harn, near breakout to in-line conn, right side of dash)
(body harn, near breakout to rap module) s234
(lower right kick panel) g203
(main harn, near breakout to evo module) s229
1/2 input
3/4 input
5/6 input
7/8 input
9/0 input
All lock
All unlock
Antenna
Battery junction box (on left side of engine compt)
Bpp switch
Brake pedal position switch (under left side of dash)
C242
C243
C256
C257
Central junction box (under left side of dash)
Common
Data link connector (under center of dash)
Datalink
Digital transmission range sensor (on left side of automatic transmission)
Disable
Door ajar
Door ajar out
Door locks system
Driver's unlock relay (behind right side of dash, in lock relay block)
Drvr unlock
Electronic suspension system
Ext lights
Exterior lights system
Fuse 15a
Fuse 30a
Fuse 5a
G200 (lower left kick panel)
G203 (lower right kick panel)
Ground
Horn
Horns system
Hot at all times
Hot in run
Hot in run or acc
Ignition
Illum
Illum entry in
Illumination
Int lights
Interior lights system
Keyless entry switch assembly
Left front power door lock switch
Lock
Mem seat
Memory systems
Nca
Power
Red
Remote anti-theft personality (rap) module (behind left side of dash)
Right front power door lock switch
S112
S2003 (main harn, near instrument cluster breakout)
S216
S219
S223
S235 (body harn, near breakout to rap module)
S250
S254
S263 (main harn, near left kick panel)
S268 (main harn, near breakout to evo module)
S500
S501
S600
Trans in
Unlock

Passive Anti-theft Wiring Diagram for Ford Expedition 1999

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List of elements for Passive Anti-theft Wiring Diagram for Ford Expedition 1999:

Anti-theft indicator
C237
C238
C242
C243
C297
Central junction box (under left side of dash)
Computer data lines system
Fuse 30a
Fuse 5a
G200 (lower left kick panel)
Hot in run
Hot in run or start
Instrument cluster
Passive anti- theft system (pats) trans- ceiver module (behind center of dash)
S2002
S208
S265

BODY COMPUTER

Body Computer Wiring Diagrams (1 of 2) for Ford Expedition 1999

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List of elements for Body Computer Wiring Diagrams (1 of 2) for Ford Expedition 1999:

87a
Accessory delay relay
Accessory delay relay ctrl
Battery junction box (left side of engine compt)
Battery saver relay
Battery saver relay ctrl
C242
C243
C267
Central junction box (under left side of dash)
Circuit breaker 30a
Electronic suspension system
Engine controls system
Fuse 15a
Fuse 5a
G203 (lower right kick panel)
Generic electronic module (gem)
Heated grid relay
Heated grid relay ctrl
Hot at all times
Hot in
Hot in run
Hot in run or acc
Ign (start) gnd (park/neutral)
Ignition (acc/run)
Ignition (run)
Interior lamp relay
Interior lamp relay ctrl
Interior lights system
Lf window motor sense (high)
Lf window motor sense (low)
Lf window switch in (down)
One touch down relay
One touch down relay ctrl
One touch down switch in
Power (b+)
Power windows system
S205
Sound systems
Start
Tps input
Transmissions system
Vehicle speed (+)

Body Computer Wiring Diagrams (2 of 2) for Ford Expedition 1999

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List of elements for Body Computer Wiring Diagrams (2 of 2) for Ford Expedition 1999:

(park/headlamps on) in
4 high to 4 low relay ctrl
4 low to 4 high relay ctrl
4x4 high range ind ctrl
4x4 mode switch in
A4wd indicator ctrl
Abs active in
Air suspension out
Anti-lock brakes system (abs control module)
Anti-theft system (rap module)
Antilock brakes sytem (4wabs module)
Brake pedal position switch
C239
C240
C241
Computer data lines system (datalink pin 7)
Contact plate a in
Contact plate b in
Contact plate c in
Contact plate d in
Defogger system (rear defogger switch)
Diagnostic link
Door ajar indicator ctrl
Door ajar out
Electronic suspension system
Exterior lights system (bpp switch)
Front shaft speed sensor in
G200 (lower left kick panel)
Generic electronic module (gem) (behind left side of dash)
Ground
Hall effect speed sensor out
Ignition key warning switch in
Illuminated entry request in
Instrument cluster system
Instrument cluster system (washer fluid level switch)
Interval delay/wash in
Lf door ajar switch in
Liftgate and glass ajar in
Low washer fluid out
Lr door ajar switch in
Rear shaft speed sensor in
Rear washer pump relay out
Rear window defrost switch in
Rear wiper relay ctrl (down)
Rear wiper relay ctrl (up)
Rear wiper sense (hi/low/park)
Rear wiper switch in
Rf door ajar switch in
Rr door ajar switch in
S208
Seat belt indicator ctrl
Seat belt warning switch in
Signal return
Tan
Tan/red
Tone request
Torque on demand relay out
Trans in neutral in
Trans low range out
Transfer case return
Transmission controls system (4 wheel drive mode switch)
Transmission controls system (4wd mode switch)
Transmission controls system (powertrain control module)
Transmission controls system (torque on demand relay)
Transmission controls system (transfer case assembly)
Transmission controls system (transfer case shift relays)
Transmission controls system (transmission range sensor)
Warning systems (ignition key warning switch)
Warning systems (lf door ajar switch)
Warning systems (liftgate & glass ajar switches)
Warning systems (lr door ajar switch)
Warning systems (main light switch)
Warning systems (rf door ajar switch)
Warning systems (rr door ajar switch)
Warning systems (seat belt switch)
Washer fluid level switch in
Washer pump ctrl
Wiper hi/lo relay ctrl
Wiper mode select switch in
Wiper motor park sense
Wiper run/park relay ctrl
Wiper/washer system (hi/lo relay)
Wiper/washer system (multi-function switch)
Wiper/washer system (rear washer pump relay)
Wiper/washer system (rear wiper down relay)
Wiper/washer system (rear wiper motor)
Wiper/washer system (rear wiper up relay)
Wiper/washer system (run/park relay)
Wiper/washer system (washer pump relay)

COMPUTER DATA LINES

Computer Data Lines for Ford Expedition 1999

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List of elements for Computer Data Lines for Ford Expedition 1999:

(main harn, near breakout to evo module) s229
(main harness near instrument cluster)
(under center of dash) data link connector (dlc)
4 wheel air suspension (4was) module (behind center of dash)
4 wheel anti-lock brake system (4wabs) control module (on left side of engine compt)
C2005
C237
C239
C242
C243
C256
C280
C296
Central junction box
Dlc
Dlc bus (+)
Dlc bus (-)
Driver seat module (under driver seat)
Electronic automatic temp. control module (eatc)
Fuse 5a
Fuse 20a
G123 (rear of engine compt)
G203 (lower right kick panel)
Generic electronic module (gem) (behind left side of dash)
Hot at all times
Instrument cluster
Junction box fuse/ relay panel (under left side of dash)
Powertrain control module (pcm) (right side of engine compt)
Remote anti-theft personality (rap) module (behind left side of dash)
Restraints control module (rcm) (behind right side of dash)
S2007
S2007 main harn. near cent. j/b
S202

CRUISE CONTROL

Cruise Control Wiring Diagram for Ford Expedition 1999

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List of elements for Cruise Control Wiring Diagram for Ford Expedition 1999:

(not used)
Accel
Air bag sliding contact (top of steering column)
Battery junc- tion box
Brake pedal position (bpp) switch (under left side of dash)
Brake press in
Brake pressure switch (left rear corner of engine compt)
C234
C242
C243
C257
Central junction box
Coast
Control sw gnd
Control sw in
Fuse 15a
Fuse 20a
Fuse 5a
G105 (rear of right fender apron)
G200 (lower left kick panel)
G203 (lower right kick panel)
Ground
Harn, near breakout to instrument cluster)
Horn relay (in battery junction box)
Horn switches
Hot at all times
Hot in run
Ign
Interior lights system
Nca
Off
Ohms
Oss sensor
Output shaft speed (oss) sensor (on left side of transmission)
Powertrain control module (on right side of engine compartment)
Remote anti-theft personality (rap) module (behind left side of dash)
Resume
S102
S112
S138 (engine sensor harn, right rear of engine compt)
S143 (engine sensor harn, near breakout to windshield wiper motor)
S202
Set/
Signal return
Speed control servo (in left side of engine compt)
Speed control switch assembly
Steering column assembly
Vehicle speed input
Vehicle speed out

DEFOGGERS

Defogger Wiring Diagram for Ford Expedition 1999

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List of elements for Defogger Wiring Diagram for Ford Expedition 1999:

(main harn, right side of dash) s259
87a
Battery junction box (on left side of eng compt)
C239
C242
C243
C267
Central junction box (under left side of dash)
Defrost relay control
Defrost switch input
Fuse 116 40a
Fuse 17 10a
Fuse 6 5a
G203 (lower right kick panel)
G402 (left rear wheelwell)
Generic electronic module (under left side of dash)
Heated grid relay
Hot at all times
Hot in run
Interior lights system
Left power/ heated mirror
Nca
On indicator
On/off switch
Rear heated window switch
Rear window defrost grid
Right power/ heated mirror
S204
S402
S427 (rear window regulator harn, near breakout to rear window defrost grid)
S500
S501
S600
Switch illum

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram, with Air Suspension for Ford Expedition 1999

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List of elements for Electronic Power Steering Wiring Diagram, with Air Suspension for Ford Expedition 1999:

(eng control sensor harn, near breakout to wiper motor)
(main harn, near breakout to evo module) (expedition only)
(main harn, near breakout to evo module) (expediton only)
(not used)
Air suspension/ evo steering module (behind center of dash)
C242
C243
Central junction box (under left side of dash)
Engine control system
Evo act output
Evo actuator (left side of engine compt)
Fuse 5a
G105 (rear of right fender apron)
G200 (lower left kick panel)
G203 (lower right kick panel)
Generic electronic module
Ground
Hot in run
Ignition
Nca
Red
Rotation rate input
S102
S143
S203
S208
S265
S267 (main harn, near breakout to evo module)
S269
S270
S271
S273
Speed control servo (left side of engine compartment)
Steering wheel rotation sensor (behind steering wheel, in dash)
Vehicle signal input

Electronic Power Steering Wiring Diagram, without Air Suspension for Ford Expedition 1999

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List of elements for Electronic Power Steering Wiring Diagram, without Air Suspension for Ford Expedition 1999:

(eng control sensor harn, near breakout to wiper motor)
(left side of dash)
(main harn, near breakout to evo module)
(not used)
C242
C243
Central junction box (under left side of dash)
Diagnostic input
Electronic variable orifice (evo) module (behind center of dash)
Engine control system
Evo act output
Evo actuator (left side of of engine compartment)
Evo diagnostic connector
Fuse 15a
Fuse 5a
G105 (rear of right fender apron)
G200 (lower left kick panel)
G203 (lower right kick panel)
Generic electronic module
Ground
Hot in run
Ignition
Nca
Red
Rotation rate input
S102
S143
S203
S207
S208
S222
S265
S267 (main harn, near breakout to evo module)
S269
S270
S271 s271
S273
Speed control servo (left side of engine compartment)
Steering wheel rotation sensor (behind steering wheel, in dash)
Vss gnd
Vss input

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram (1 of 2) for Ford Expedition 1999

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List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Ford Expedition 1999:

(main harn, near breakout to air susp/evo mod) s272
1999 only
Air suspension compressor motor and vent solenoid (right radiator support)
Air suspension compressor relay (near right headlamp)
Air suspension indicator
Air suspension service switch (under right side of dash)
Air suspension/ evo steering module (behind center of dash)
All wheel drv
Battery junction box (left side of engine compt)
Bpp switch
C238
C242
C243
C295
C296
Central junction box (under left side of dash)
Comp mtr vent sol
Compressor relay
Computer data lines system
Data link conn
Data link connector (under center of dash)
Evo module
Front air fill solenoid (near trans cooler)
Front fill sol
Front gate sol
Front gate solenoid (front of a/c condenser)
Front height sen
Fuse 15a
Fuse 50a
Fuse 5a
G108 (left front radiator suport)
G109 (right front radiator suport)
G109 (right front radiator support)
G200 (lower left kick panel)
G203 (lower right kick panel)
Gem input
Ground
Height sen power
Hot at all times
Hot in run
Hot in start
Instrument cluster
Left rear air spring solenoid (in front of left rear wheel)
Lr spring sol
Memory systems
Pcm
Pnk
Power (hot in run)
Power (start)
Rear air fill solenoid (in front of left rear wheel)
Rear fill sol
Rear height sen
Red
Right rear air spring solenoid (in front of right rear wheel)
Rr spring sol
S104
S155
S177
S2009
S219
S265
S289
S400
Service switch
Solid state
Steering sensor
Tan
Transmission controls
Vehicl speed (+)
Warning indicator

Electronic Suspension Wiring Diagram (2 of 2) for Ford Expedition 1999

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List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Ford Expedition 1999:

(lower left kick panel)
(lower left kick panel) g200
(main harn, near breakout to air susp/evo mod) s270
(main harn, near breakout to air susp/evo module) s267
(main harn, near breakout to evo module)
(not used)
(rear lamp harn, near breakout to front height sensor)
(rear lamp harn, near breakout to front height sensor) s410
Brake pedal position (bpp) switch (under left side of dash)
Breakout to inst cluster)
C174
C240
C241
C256
Central junction box (under left side of dash)
Electronic variable orifice (evo) actuator (left side of engine compt)
Electronic variable orifice (evo) diagnostic connector (under left side of dash)
Expedition only
Front height sensor (behind left running board)
Fuse 5a
G105 (rear of right fender apron)
G200
Generic electronic (gem) module (behind left side of dash)
Generic electronic module (gem)
Hot at all times
Instrument cluster
Nca
Powertrain control module (pcm) (right side of engine compt)
Rear height sensor (rear floor panel)
Red
Remote anti-theft personality (rap) module (behind left side of dash)
S102
S208
S268 (main harn, near breakout to evo module)
S269
S271 (main harn, near breakout to evo module)
S273
S409
Speed control servo (left side of engine compt)
Steering wheel rotation sensor (behind steering wheel, in dash)
Tan

ENGINE PERFORMANCE

4.6L

4.6L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999

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List of elements for 4.6L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999:

(engine control sensor harn, near breakout to 40-pin connector, left rear left rear corner of eng compt)
(fuel charge harn, near breakout to 42-pin conn in right rear of engine compt)
(fuel charge harn, near breakout to radio noise cap 1) s118
(fuel charge harn, near breakout to radio noise cap 2) s119
(left front radiator support) g108
(main harn, near breakout to central junction box)
(right rear of engine compt) g123
4x4 low ind sw
820 ohms
Accel sig
Accs
Air conditioning system
Battery junction box (left side of engine compt)
Body computer system
C243
Case gnd
Central junction box (under left side of dash)
Ckp(+)
Ckp(-)
Data link (+)
Data link (-)
Data link connector (partial) (under left side of dash)
Digital transmission range sensor (dtr sensor) (left side of transmission)
Dlc
Electronic suspension system
Evr ctrl
Fuel pump mon
Fuse 30a
Fuse 5a
Hot at all times
Hot in run or start
Iat
Ign coil 1
Ign coil 2
Ignition coils 1 & 2
Ignition coils 3 & 4
Instrument cluster system
Intake manifold
Intake manifold tunning valve (top front of engine)
Ks sensor
Maf
Nca
O/d off
Pcm data out
Pcm power diode
Pcm power relay
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
R n
Radio noise capacitor 1 (in right front of engine compt)
Radio noise capacitor 2 (in left front of engine compt)
Rr ho2s sig (12)
S100
S106
S116
S117
S2002
S2007
S2008
S225
Shift sol a
Shift sol b
Spark plugs
Tcs
Tft
To dtr sensor (diagram 4 of 4)
Tp out
Tr1
Tr2
Tr4
Transmission control indicator lamp
Transmission control switch (a/t)

4.6L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999

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List of elements for 4.6L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999:

(eng control sens harn, near breakout to starter mtr relay) s137
(engine control sensor harn, near breakout to 38-pin conn in right rear of engine compt)
(engine control sensor harn, near breakout to 40-pin conn in left rear of engine compt)
(engine control sensor harn, near breakout to windshield wiper motor)
(under left side of dash) central junction box
Battery junction box (left side of engine compt)
Breakout to 40-pin conn, left rear of engine compt) s160
C238
C267
Crankshaft position (ckp) sensor (lower front of engine)
Crankshaft position sensor shield
Differential pressure feedback egr (dpfe) sensor (left side of engine)
Electronic suspension system
Fuel pump relay
Fuel reset switch indicator
Fuel tank pressure sensor (in fuel tank)
Fuse 15a
Fuse 20a
G123 (rear of engine compt)
Generic electronic module/ central timer module
Hot at all times
Instrument cluster
Intake air temperature (iat) sensor (on intake manifold)
Nca
Power distribution box (left side of engine compt)
Red
Red/pnk
S101
S127
S135 (fuel charge harn, near breakout to ho2s 21)
S136 (fuel charge harn, near breakout to knock sensor)
S138
S139
Throttle position (tp) sensor (on throttle body)
Vss input

4.6L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999

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List of elements for 4.6L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999:

(backup lamp sw to rear lamp feed harn, at breakout to 38-pin conn in right rear of engine compt)
(engine control
(fuel charge harn, near breakout to ignition coil 3)
(fuel charge harn, near breakout to knock sensor)
(fuel tank) fuel pump module
(under right side of dash) inertia fuel shut-off switch
4r70w transmission
Central junction box (under left side of dash)
Egr vacuum regulator solenoid (left side of engine)
Electronic pressure control solenoid
Eng compt)
Evap canister purge
Fuel injectors
Fuse 5a
G108 (left front radiator support)
Hot at all times
Idle air control valve (on left side of intake manifold)
Instrument cluster system
Nca
Near breakout to 40-pin conn, left
Output shaft speed (oss) sensor (left side of transmission)
Rear corner of
Rear lamp feed harn, in breakout to 38-pin conn in right rear engine compt)
Red
Red/pnk
S129
S131 (fuel charge harn, near breakout to ign coil 7)
S140
S198
S400
Sensor harn,
Shift solenoids
Ssa
Ssb
Tan
Tan/ red
Tan/red
Torque converter clutch solenoid
Transmission fluid temperature sensor
Valve (left rear corner of engine compt)

4.6L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999

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List of elements for 4.6L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999:

(engine cntrl sens harn, near breakout to 40-pin conn, left rear of eng compt)
(engine ctrl sensor harn, near breakout to windsheild wiper motor) s143
(in left side of engine compt) speed control servo
(near fuel tank) canister vent solenoid
(not used)
(on left side of engine compartment)
(right side of engine) knock sensor (ks)
(top front of engine) cylinder head temperature (cht) sensor
5v ref volt
Battery junction box
Bpp sw
Brake pedal position (bpp) switch
C243
Cam pos in
Camshaft position (cmp) sensor (on front of engine)
Camshaft position sensor shield
Canister vent
Central junction box (under left side of dash)
Cyl head temp
Digital transmission range sensor (dtr sensor) (left side of transmission)
Dpfe sens
Epc sol
From dtr sensor (diagram 1 of 4)
Fuel inj 1
Fuel inj 2
Fuel inj 3
Fuel inj 4
Fuel inj 5
Fuel inj 6
Fuel inj 7
Fuel inj 8
Fuel pump ctrl
Fuel tank press
Fuse 5a
G123 (right rear of engine compt)
G123 (right rear of engine compt)
G200 (left kick panel)
Heated oxygen sensor (ho2s) 11 (on engine exhaust pipe)
Heated oxygen sensor (ho2s) 12 (on engine exhaust pipe)
Heated oxygen sensor (ho2s) 21 (on engine exhaust pipe)
Heated oxygen sensor (ho2s) 22 (on engine exhaust pipe)
Heater ctrl
Hot at all times
Iac sol
Ign coil 3
Ign coil 4
Kap b(+)
Knock sensor
Lf ho2s
Lf ho2s sig (21)
Lr ho2s
Lr ho2s sig (22)
Maf sens in
Mass air flow (maf) sensor (in air cleaner assembly)
Nca
Not used
Oss (+)
Pnk
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
Red
Red/pnk
Ref voltage
Rf ho2s
Rf ho2s sig (11)
Rr ho2s
S100
S101
S130
S208
Tan
Tan/red
Tcc sol
Tp sens in
Tr3a
Trans ctrl ind
Vapor valve
Vpwr
Vss (+)
Vss input
Wot relay

5.4L

5.4L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999

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List of elements for 5.4L, Engine Performance Wiring Diagrams (1 of 4) for Ford Expedition 1999:

(engine control sensor harn, near breakout to 40-pin connector, left rear left rear corner of eng compt)
(left front radiator support) g108
(main harn, near breakout to central junction box)
(right rear of engine compt) g123
4x4 low ind sw
820 ohms
Accel sig
Accs
Air conditioning system
Battery junction box (left side of engine compt)
Body computer system
C243
Case gnd
Ccs
Central junction box (under left side of dash)
Ckp(+)
Ckp(-)
Data link (+)
Data link (-)
Data link connector (partial) (under left side of dash)
Digital transmission range sensor (dtr sensor) (left side of transmission)
Dlc
Electronic suspension system
Evr ctrl
Fuel pump mon
Fuse 30a
Fuse 5a
Hot at all times
Hot in run or start
Iat
Ign coil 1
Ign coil 3
Ign coil 5
Ign coil 6
Instrument cluster system
Intake manifold
Intake manifold tunning valve (top front of engine)
Ks sensor
Maf
Nca
O/d off
Pcm data out
Pcm power diode
Pcm power relay
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
R n
Radio noise capacitor (on top right side of engine)
Radio noise capacitor 2 (on top left side of engine)
Rr ho2s sig (12)
S100
S106
S116
S117 (fuel charge harn, near breakout to 42-pin conn in right rear of engine compt)
S161
S2002
S2007
S2008
S225
Shift sol 1
Shift sol 2
Tcil
Tcs
Tft
To dtr sensor (diagram 4 of 4)
Tp out
Tr1
Tr2
Tr4
Transmission control indicator lamp
Transmission control switch (a/t)

5.4L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999

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List of elements for 5.4L, Engine Performance Wiring Diagrams (2 of 4) for Ford Expedition 1999:

(eng control sens harn, near breakout to starter mtr relay) s137
(engine control sensor harn, near breakout to 38-pin conn in right rear of engine compt)
(engine control sensor harn, near breakout to 40-pin conn in left rear of engine compt)
(engine control sensor harn, near breakout to windshield wiper motor)
(under left side of dash) central junction box
Battery junction box (left side of engine compt)
C238
C243
C267
Crankshaft position (ckp) sensor (lower front of engine)
Crankshaft position sensor shield
Differential pressure feedback egr (dpfe) sensor (left side of engine)
Electronic suspension system
Fuel pump relay
Fuel reset switch indicator
Fuel tank pressure sensor (in fuel tank)
Fuse 15a
Fuse 20a
G123 (rear of engine compt)
Generic electronic module/ central timer module
Hot at all times
Instrument cluster
Intake air temperature (iat) sensor (on intake manifold)
Nca
Power distribution box (left side of engine compt)
Red
Red/pnk
S101
S127
S135 (fuel charge harn, near breakout to ho2s 21)
S136 (fuel charge harn, near breakout to knock sensor)
S138
S139
Throttle position (tp) sensor (on throttle body)
Vss input

5.4L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999

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List of elements for 5.4L, Engine Performance Wiring Diagrams (3 of 4) for Ford Expedition 1999:

(backup lamp sw to rear lamp feed harn, at breakout to 38-pin conn in right rear of engine compt)
(engine control
(fuel charge harn, near breakout to ignition coil 3)
(fuel charge harn, near breakout to knock sensor)
(fuel tank) fuel pump module
(under right side of dash) inertia fuel shut-off switch
4r100 transmission
Central junction box (under left side of dash)
Coast clutch solenoid
Egr vacuum regulator solenoid (left side of engine)
Electronic pressure control solenoid
Eng compt)
Evap canister purge
Fuel injectors
Fuse 5a
G108 (left front radiator support)
Hot at all times
Idle air control (iac) valve (on left side of intake manifold)
Instrument cluster system
Nca
Near breakout to 40-pin conn, left
Output shaft speed (oss) sensor (left side of transmission)
Rear corner of
Red
Red/pnk
S129
S131 (fuel charge harn, near breakout to ign coil 7)
S140
S141 (backup lamp sw to rear lamp feed harn, in breakout to 38-pin conn in right rear engine compt)
S178
S198
S400
Sensor harn,
Shift solenoid
Tan
Tan/ red
Tan/red
Torque converter clutch solenoid
Transmission fluid temperature sensor
Valve (left rear corner of engine compt)

5.4L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999

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List of elements for 5.4L, Engine Performance Wiring Diagrams (4 of 4) for Ford Expedition 1999:

(engine cntrl sens harn, near breakout to 40-pin conn, left rear of eng compt)
(engine ctrl sensor harn, near breakout to windsheild wiper motor)
(front of left head) cylinder head temperature (cht) sensor
(in left side of engine compt) speed control servo
(near fuel tank) canister vent solenoid
(on left side of engine compartment)
(on left side of transmission) turbine shaft speed (tss) sensor
(right side of engine) knock sensor (ks)
5.4l 2v only
5v ref volt
Battery junction box
Bpp sw
Brake pedal position (bpp) switch
C243
Cam pos in
Camshaft position (cmp) sensor (on front of engine)
Camshaft position sensor shield
Canister vent
Central junction box (under left side of dash)
Cyl head temp
Digital transmission range sensor (dtr sensor) (left side of transmission)
Dpfe sens
Epc sol
From dtr sensor (diagram 1 of 4)
Fuel inj 1
Fuel inj 2
Fuel inj 3
Fuel inj 4
Fuel inj 5
Fuel inj 6
Fuel inj 7
Fuel inj 8
Fuel pump ctrl
Fuel tank press
Fuse 5a
G123 (right rear of engine compt)
G123 (right rear of engine compt)
G200 (left kick panel)
Heated oxygen sensor (ho2s) 11 (on engine exhaust pipe)
Heated oxygen sensor (ho2s) 12 (on engine exhaust pipe)
Heated oxygen sensor (ho2s) 21 (on engine exhaust pipe)
Heated oxygen sensor (ho2s) 22 (on engine exhaust pipe)
Heater ctrl
Hot at all times
Iac sol
Ign coil 2
Ign coil 4
Ign coil 7
Ign coil 8
Kap b(+)
Knock sensor
Lf ho2s
Lf ho2s sig (21)
Lr ho2s
Lr ho2s sig (22)
Maf sens in
Mass air flow (maf) sensor (in air cleaner assembly)
Nca
Oss (+)
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
Red
Red/pnk
Rf ho2s
Rf ho2s sig (11)
Rr ho2s
S100
S101
S130
S143
S208
Sig rtn
Tan
Tan/red
Tcc sol
Tp sens in
Tr3a
Tss
Vapor valve
Vpwr
Vss (+)
Vss input
Wot relay

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Ford Expedition 1999

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List of elements for Back-up Lamps Wiring Diagram for Ford Expedition 1999:

C242
C256
Central junction box (under left side of dash)
Digital transmission range sensor (on left side of automatic transmission)
Exterior lamps (trailer tow backup lamp relay)
Fuse 5 15a
G402 (left rear wheelwell)
Hot in run
Left reversing lamp
Mirrors system (w electro- chromic rear view only)
Remote anti-theft personality module (behind left side of dash)
Right reversing lamp
S112
S150 (engine control sensor harn, left rear of engine compartment)
S263 (main harn, near left kick panel)
S414 (expedition) s404 (navigator)
S417 (expedition) s415 (navigator)
S421 (seat belt retractor harn, near seat belt warning switch breakout)

Exterior Lamps Wiring Diagram for Ford Expedition 1999

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List of elements for Exterior Lamps Wiring Diagram for Ford Expedition 1999:

(engine ctrl sensor harn, near breakout to brake pressure switch) s115
(main harn, near breakout to cooling fan) s260
(main harn, near breakout to steering wheel rotation sensor) s246
(main harn, near breakout to steering wheel rotation sensor) s247
(main harn, near breakout to steering wheel rotation sensor) s261
(main harn, near passenger's air bag) s2013
(seat belt harn, near breakout to right license lamp) s416
(seat belt harn, near breakout to seat belt switch) s403
Autolamp module (behind center of dash)
Battery junction box (on left side of engine compartment)
Blower/ flasher relay block (behind center of dash)
Brake pedal position switch (under left side of dash)
C216
C238
C243
Central junction box (under left side of dash)
Flasher relay
Fuse 10a
Fuse 15a
G109 (right front radiator support)
G203 (lower right kick panel)
G402 (left rear wheelwell)
Hazard
Head
High mount stop lamp 1
High mount stop lamp 2
High mount stop lamp 3
Hot at all times
Hot in run
Instrument cluster
Lamp harn, in breakout to hi mount stop lamp) s911
Left
Left exterior rear view mirror
Left front park/ turn lamp
Left license lamp
Left stop/ park/ turn lamp
Left turn indicator
Main light switch
Multi-function switch
Nca
Normal
Off
Park
Park lamp relay (w/ auto lamps)
Right
Right exterior rear view mirror
Right front park/ turn lamp
Right license lamp
Right stop/ park/ turn lamp
Right turn indicator
Rpo relay block 1 (behind right side of dash, above passenger air bag)
S104
S202
S204
S224 (main harn, near breakout to main light sw)
S228
S231 (main harn, near breakout to instrument cluster)
S245 (main harn, near breakout to rpo relay block 1)
S414
S415
S417
S501
S600
S909
Trailer/ camper adapter circuit

Trailer/Camper Adapter Wiring Diagram for Ford Expedition 1999

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List of elements for Trailer/Camper Adapter Wiring Diagram for Ford Expedition 1999:

(1999)
(2000)
(engine cntrl sensor harn, left side of eng compt) s115
(left front radiator support) g108
(left side of engine compt) battery junction box
(main harn, left rear of eng compt) s260
(main harn, near breakout to steering wheel rotation sensor) s261
(trailer backup lamps)
(trailer battery)
(trailer left turn lamps)
(trailer right turn lamps)
(trailer running lamps)
Battery junction box (left side of engine compt)
Brake pedal position switch (under left side of dash)
Breakout to inst cluster)
C242
C243
Central junction box (under left side of dash)
Exterior lights (back-up lamps circuit)
Exterior lights (exterior lights circuit)
Fuse 10a
Fuse 20a
Fuse 30a
G203 (lower right kick panel)
G416 (left rear of frame)
Head
Hot at all times
Hot in run
Left turn signal output
Main light switch
Multi- function switch
Off
Park
Red
Right turn signal output
S108
S152
S2001
S201
S224 (main harn, in breakout to main light sw)
S228
Trailer electronic brake control
Trailer tow battery charge relay
Trailer tow reversing lamp relay
Trailer tow running lamp relay
Trailer/ camper adapter

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Ford Expedition 1999

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List of elements for Ground Distribution Wiring Diagram (1 of 4) for Ford Expedition 1999:

4 wheel drive mode switch
4.6l
5.4l
A/c clutch diode
A/c compressor clutch solenoid
Adjustable pedal switch
Air suspension/ evo steering module
Airbag sliding contact
Ashtray illumination
Auxiliary a/c relay
Bare
Battery
Battery junction box
Battery junction relay box
Blend door actuator
Blower motor resistor
Blower motor speed controller
Blower relay
Blower/flasher relay block
C174
Camshaft position sensor shield
Cd changer
Cellular phone support electronics
Clock
Crankshaft position sensor shield
Data link connector
Daytime running lamps relay 1
Daytime running lamps relay 2
Daytime running lamps relay block
Digital transmission range sensor
Electronic automatic temperature control module
Electronic variable orifice module
Engine compartment lamp
Flasher relay
Function selector switch assembly
G101 (right side of engine compt, near battery)
G105 (rear of right fender apron)
G123 (right side of firewall)
G202 (upper left kick panel)
G203 (lower right kick panel)
G411 (left rear of vehicle)
Glove compartment lamp
Harn, near breakout to console blower motor)
Instrument cluster
Main light switch
Mass air flow sensor
Powertrain control module
Radio
Rear integrated control panel
Rear window defrost switch
Rear wiper down relay
Rear wiper up relay
Rpo relay block 2
S102 (engine control sensor harn, near breakout to starter motor relay)
S199 (fuel charge harn, right rear of engine compt)
S201 (main body harn, near breakout to air suspension/ evo steering module)
S202 (main body harn, (near breakout to blower/ flasher relay box)
S203 (main body harn, near breakout to rpo relay block)
S204 (main body harn, near breakout to instrument cluster)
Shift lock actuator
Speed control servo
Subwoofer amplifier
Torque on demand relay
Trailer tow
Trailer tow brake control
Transfer case shift relay
W/o memory
Windshield wiper motor

Ground Distribution Wiring Diagram (2 of 4) for Ford Expedition 1999

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List of elements for Ground Distribution Wiring Diagram (2 of 4) for Ford Expedition 1999:

4 wheel anti-lock brake system module
Air suspension compressor motor and vent solenoid assembly
Air suspension compressor relay
Auxiliary a/c blend actuator
Auxiliary a/c control module
Auxiliary a/c mode actuator
Battery junction box
Brake fluid level indicator switch
Breakout to left running board lamp)
Front air fill solenoid
Front blower illumination switch
Front blower motor switch
Front gate solenoid
Front interior/ map lamp assembly
Front washer pump relay
Fuel pump assembly
Full console only
G108 (left front radiator support)
G109 (right front radiator suppurt)
G402 (left rear wheelwell)
Left air spring solenoid
Left fog lamp
Left front park/ turn lamp
Left front side marker lamp
Left headlamp
Left interior/ map lamp
Left rear vent window switch
Left running board lamp
Left side rail lamp
Left vanity lamp
Mini console only
Near breakout to rpo relay box 2)
Overhead trip computer module
Pcm power relay
Rear air fill solenoid
Rear blower illumination switch
Rear washer pump relay
Right air spring solenoid
Right fog lamp
Right front park/ turn lamp
Right front side marker lamp
Right headlamp
Right interior/ map lamp
Right rear vent window switch
Right running board lamp
Roof opening panel assembly
Roof opening panel switch
Rpo relay block 2
S103 (engine control sensor harn, near breakout to ground g109)
S106 (engine control sensor harn, in breakout to g108)
S155 (engine control sensor harn, in breakout to compressor motor/ vent solenoid assy)
S177 (air spring suspension harn, near battery)
S913 (interior lamp feed harn, near breakout to left rail lamp)
S923 (interior lamp feed harn, in center of headliner)
Sensor harn, near breakout to ground g109)
Trailer tow battery charge relay
Trailer tow reversing lamp relay
Trailer tow running lamp relay
Vent window/ roof opening panel relay
W/ aux a/c
W/ side marker lamps
W/ vent
W/o aux a/c
W/o side marker lamps
W/o vent
Washer fluid level switch

Ground Distribution Wiring Diagram (3 of 4) for Ford Expedition 1999

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List of elements for Ground Distribution Wiring Diagram (3 of 4) for Ford Expedition 1999:

87a
Adjustable pedal switch
Air suspension/ evo steering module
All lock relay
All unlock relay
Auxiliary power socket
Brake pedal position switch
Central junction box
Cigar lighter
Compass sensor
Console auxiliary power socket
Driver seat module
Driver's power seat control switch
Electronic variable orifice module
Expedition
Exterior rear view mirror switch
Front height sensor
Fuel pump assembly
G200 (lower left kick panel)
G203 (lower right kick panel)
Generic electronic module
Instrument cluster
Keypad switch assembly
Left exterior rear view mirror
Left front door ajar switch
Left front door courtesy lamp
Left front power door lock switch
Left front power window switch
Left rear door ajar switch
Left rear power window switch
Lock relay block
Memory set switch
Navigator
Near breakout to remote anti-theft personality module)
One touch down relay
Overhead trip computer module
Passive anti-theft system transceiver module
Rear height sensor
Rear integrated control panel (audio)
Rear integrated control panel (blower)
Remote anti-theft personality module
Remote anti-theft personality module)
Restraint control module
Retractor harn, near breakout to overhead console)
Right exterior rear view mirror
Right front door ajar switch
Right front door courtesy lamp
Right front power door lock switch
Right front power window switch
Right rear door ajar switch
Right rear power window switch
S205 (main body harn, near breakout to evo steering module)
S258 (main body harn, right side of dash)
S308 (safety belt retractor harn, under passenger seat)
S322 (console panel harn, near breakout to console blower motor)
S410 (rear lamp harn, near breakout to front height sensor)
S500 (main body harn, near breakout to parking brake switch)
S501 (main body harn, near breakout to left window switch)
S600 (main body harn, near breakout to right door courtesy lamp)
S701 (main body harn, near breakout to left rear gromet)
Steering wheel rotation sensor
To right rear gromet)

Ground Distribution Wiring Diagram (4 of 4) for Ford Expedition 1999

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List of elements for Ground Distribution Wiring Diagram (4 of 4) for Ford Expedition 1999:

(expedition) left license lamp
(expedition) left reversing lamp
(expedition) right license lamp
(expedition) right reversing lamp
(rear window regulator harn, near breakout to rear window defroster grid)
(w/ memory) safety belt switch
(w/o memory) safety belt switch
Driver heated seat module
Driver heated seat switch)
Driver power seat control switch
Driver seat module
Electronic day/night mirror
Expedition
G402 (expedition) (left rear wheelwell)
G402 (left rear wheelwell)
G402 (navigator) (left rear wheelwell)
Glass ajar switch
High mount stop light)
High mounted stop lamp
High mounted stop lamp 1
High mounted stop lamp 2
High mounted stop lamp 3
Left license lamp
Left rear tail lamp
Left reversing lamp
Liftgate ajar switch
Navigator
Near breakout to ground g402)
Passenger heated seat module
Passenger power seat control switch
Rear cargo lamp
Rear interior/ map lamp assembly
Rear window defrost grid
Rear wiper motor
Right license lamp
Right license lamp)
Right rear tail lamp
Right reversing lamp
Right side rail lamp
Right stop/ park/ turn lamp
S329 (seat back pad harn, near breakout to passenger heated seat module)
S402
S402 (rear window regulator harn, near breakout to rear window defroster grid)
S404 (rear window regulator harn, near breakout to rear window defroster grid)
S415 (rear license lamp harn, near breakout to right license plate lamp)
S417 (safety belt retractor harn, near breakout right stop/park/ turn lamp)

HEADLIGHTS

Autolamps & Fog Lamps Wiring Diagram, with DRL for Ford Expedition 1999

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List of elements for Autolamps & Fog Lamps Wiring Diagram, with DRL for Ford Expedition 1999:

(engine control sensor harness, near breakout at left front radiator support) s114
(engine control sensor harness, near breakout to left fog lamp) s147
(lower right kick panel) g203
(main harness, near breakout to central junction box) s2000 s218
(main harness, near breakout to passenger airbag)
(main harness, near breakout to rpo relay block) s245
A expedition/ navigator
Auto- lamp on
Auto-lamp on ind
Autolamp module (behind center of dash)
B pickup f150/ pickup f250 light duty
Battery
Battery junction box
C236
C238
C242
C243
C244
C245
C246
C257
C259
Central junction box
Cntrl sw out
Daytime running lamps relay 1
Daytime running lamps relay 2
Daytime running lamps relay block (behind right side of dash)
Daytime running lamps resistor (in left front of engine compt)
Exterior lights system, trailer/ camper adapter
Fog lamp relay
Fog lamp sw
Fog on ind
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 30a
Fuse 5a
G108 (left front radiator support)
G109 (right front radiator support)
G203 (lower right kick panel)
Head
Headlamp relay
Hi-beam indicator
Hot at all times
Hot in run
Hot in start or run
Ignition
Instrument cluster
Left fog lamp
Left headlamp
Main light switch
Multi- function switch
Off
Park
Park lamp relay
Pass
Relay output
Remote anti-theft personality module (behind left side of dash)
Rheostat out
Right fog lamp
Right headlamp
Rpo relay box (behind right side of dash)
S104
S106
S109
S2013
S203
S204
S212
S219
S222
S225
S241
S244 (main harness, left side of dash)

Autolamps & Fog Lamps Wiring Diagram, without DRL for Ford Expedition 1999

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List of elements for Autolamps & Fog Lamps Wiring Diagram, without DRL for Ford Expedition 1999:

(main harness, near breakout to central junction box) s2000 s218
(main harness, near breakout to passenger airbag)
(main harness, near breakout to rpo relay block) s245
A b
A expedition/ navigator
Auto- lamp on
Auto- lamp on ind
Autolamp module (behind center of dash)
B a
B pickup f150/ pickup f250 light duty
Battery
Battery junction box
C236 c238
C238 c236
C242
C243
C244
C245
C246
C257
C259
Central junction box
Cntrl sw out
Exterior lights system, trailer/ camper adapter
Fog lamp relay
Fog lamp sw
Fog on ind
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 30a
Fuse 5a
G108 (left front radiator support)
G109 (right front radiator support)
G203 (lower right kick panel)
Head
Headlamp relay
Hi-beam indicator
Hot at all times
Hot in start or run
Ignition
Instrument cluster
Junction box fuse/relay panel
Left fog lamp
Left headlamp
Main light
Main light switch
Multi- function switch
Off
Park
Park lamp relay
Pass
Relay output
Remote anti-theft personality module (behind left side of dash)
Rheostat out
Right fog lamp
Right headlamp
Rpo relay box (behind right side of dash)
S104
S106
S109
S147 (engine control sensor harness, near breakout to left fog lamp)
S204
S212
S219
S224
S225
S241 s2013
S244 (main harn, near left side of dash)
Switch

Headlamps & Fog Lamps Wiring Diagram, with DRL for Ford Expedition 1999

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List of elements for Headlamps & Fog Lamps Wiring Diagram, with DRL for Ford Expedition 1999:

A expedition/ navigator
Battery junction box
C236
C238
C242
C243
C244
C246
C259
Central junction box
Daytime running lamps relay 1
Daytime running lamps relay 2
Daytime running lamps relay block (behind right side of dash)
Daytime running lamps resistor (in left front of engine compt)
Fog lamp relay
Fog lamp sw
Fog on ind
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 30a
Fuse 5a
G108 (left front radiator support)
G109 (right front radiator support)
G203 (lower right kick panel)
Head
Hi-beam indicator
Hot at all times
Hot in run
Instrument cluster
Left fog lamp
Left headlamp
Left side of dash)
Main light
Main light switch
Multi- function switch
Off
Park
Pass
Pickup f150/ b
Pickup f250 light duty
Right fog lamp
Right headlamp
S104
S106
S109
S147 (engine control sensor harness, near breakout to left fog lamp)
S203
S204
S212
S218 s2000 (main harness, near breakout to central junction box)
S222
Switch

Headlamps & Fog Lamps Wiring Diagram, without DRL for Ford Expedition 1999

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List of elements for Headlamps & Fog Lamps Wiring Diagram, without DRL for Ford Expedition 1999:

A expedition/ navigator pickup f150/ b pickup f250 light duty
Battery junction box
C236 c238
C238 c236
C242
C243
C244
C246
C259
Central junction box
Fog lamp relay
Fog lamp sw
Fog on ind
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 30a
Fuse 5a
G108 (left front radiator support)
G109 (right front radiator support)
G203 (lower right kick panel)
Head
Hi-beam indicator
Hot at all times
Instrument cluster
Left fog lamp
Left headlamp
Main light
Main light switch
Multi- function switch
Off
Park
Pass
Right fog lamp
Right headlamp
S104
S106
S109
S147 (engine control sensor harness, near breakout to left fog lamp)
S204
S212
S218 s2000 (main harness, near breakout to central junction box)
S244 (main harness, left side of dash)
Switch

HORN

Horn Wiring Diagram for Ford Expedition 1999

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List of elements for Horn Wiring Diagram for Ford Expedition 1999:

20a
Airbag sliding contact
Battery junction box (left side of engine compartment)
C257
Climate control system
Cruise control system
Fuse 7
High pitch horn (left front of engine compt)
Horn relay
Horn switch
Hot at all times
Low pitch horn (right front of engine compt)
Nca
Remote anti-theft personality module (behind left side of dash)
S145 (engine control sensor harness, in breakout to low pitch horn)
Speed control servo (left side of engine compt)
Steering column assembly

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Ford Expedition 1999

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List of elements for Instrument Cluster Wiring Diagram for Ford Expedition 1999:

(conn a)
(conn b)
(lower right kick panel) g203
4 wheel anti- lock brake system module (on left side of engine compt)
4x4 high ind
4x4 low ind
820 ohms
A10
A14
A15
A17
A22
Air suspension/ evo steering module (behind center of dash)
Airbag ind
Anti-lock ind
B10
B11
B12
B13
B14
B16
B17
B18
B19
B20
Bias ckt
Brake fluid level indicator switch (on brake fluid reservoir)
Brake ind
C146
C2005
C237
C238
C239
C240
C241
C242
C243
C296
Central junction box
Charge ind
Charging system
Check suspension ind
Computer data lines system
Door ajar ind
Engine oil pressure switch (on left front of engine, next to p/s pump)
Exterior lights system
Fasten safety belt ind
Fuel pump assembly (under vehicle, at fuel tank)
Fuel pump module
Fuel reset ind
Fuse 30a
Fuse 5a
G108 (left front radiator support)
G200 (lower left kick panel)
Generic electronic module (behind left side of dash)
Headlights system
Hi beam ind
Hot at all times
Hot in run
Hot in start or run
Illumination
Inertia fuel shutoff switch (under right (behind right side of dash)
Instrument cluster
Interior lights system
Left turn ind
Low fuel ind
Low oil/high coolant ind
Low washer fluid ind
Malfunction indicator
Micro- processor
Microprocessor
Nca
Overhead trip computer module (in front of overhead console)
Parking brake switch (on right side of park brake lever)
Passive anti-theft system transceiver module (behind center of dash)
Restraints control module (behind right side of dash)
Right turn ind
Rx input
S106
S2002
S204
S207
S265
S289
S298 (main harn, near breakout to insrument cluster)
Theft indicator micro cluster
Tx input

Overhead Console Wiring Diagram for Ford Expedition 1999

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List of elements for Overhead Console Wiring Diagram for Ford Expedition 1999:

(left rear wheelwell)
(lower left kick panel) g200
Air suspension/ evo steering module (behind center of dash)
Awd low
Batt sav lmp
C237
C242
Central junction box
Compass +
Compass -
Compass sensor (in overhead console)
Data out
Electronic suspension system
Fuel pump assembly
Fuel sender
Fuse 5a
G108 (left front
G402
Ground
Hot at all times
Hot in run
Instrument cluster
Interior lights system
Left interior/ map lamp
Left map lt
Main light
Near breakout to instrument cluster)
Overhead trip computer module (in front of overhead console)
Pnk
Power
Powertrain control module (on right side of engine compt)
Radiator support)
Right interior/ map lamp
Right map lt
S267 (main harn, near breakout to evo module)
S289
S400
S425
S426
S900 s923 (2001) (1999-00)
Speed sens
Transmissions system (all wheel drive)

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram for Ford Expedition 1999

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List of elements for Courtesy Lamps Wiring Diagram for Ford Expedition 1999:

g105 (rear of right fender apron)
(body main harn, behind right side of dash) s239
(int lp feed harn, near left side rail lamp breakout) s917
(left rear wheelwell) g402
(rear lamp extension harn, near right side running board) s434
(seat belt ret harn, near torque on demand breakout)
Battery junction box
Battery saver input
Battery saver relay
C242
C243
C245
C246
C267
C928
Central junction box
Door
Engine compartment lamp
Front interior/ map lamp assembly
Fuse 10a
Fuse 15a
G108 (left front radiator support)
G203 (lower right kick panel)
G402 (left rear wheelwell)
Generic electronic module (gem)
Glove compartment lamp
Hot at all times
Interior lamp
Interior lamp relay
Interior lamp relay input
Interior lamp switch
Left door courtesy lamp
Left interior/ map lamp
Left running board lamp
Left side rail lamp
Left vanity lamp
Main light switch
Map lamps
Nca
Off
Off
Overhead trip computer (w/ mini console)
Pnk
Rear cargo lamp
Rear interior/ map lamp assembly
Right side rail lamp
Right door courtesy lamp
Right interior/ map lamp
Right running board lamp
Right vanity lamp
S102
S164 (eng cntrl sens harn, left rear of eng compt)
S200
S203
S204
S240 (main harn, near ashtray illum breakout)
S400
S404
S408 (rear lamp harn, in left side running board)
S417
S419
S420 (seat belt ret harn, near right kick panel)
S428
S429
S430 (rear lamp extension harn, in left side running board)
S500
S501
S600
S900
S912 (int lamp feed harn, near rear blower switch breakout)
S913
S923
Universal garage door opener
W/ aux a/c
W/ aux a/c only
W/ mini console only
W/o aux a/c
W/o aux a/c or w/ mini console
Wiper/ washer system

Instrument Illumination Wiring Diagram for Ford Expedition 1999

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List of elements for Instrument Illumination Wiring Diagram for Ford Expedition 1999:

(interior lamp feed harn, near rear blower switch breakout) s915
(main harn, behind left side of dash) s242
4 wheel drive mode switch
Adjust- able pedal switch
Airbag slidilng contact
Airbag sliding contact
Ashtray illumination
Battery junction box
C219
C230
C237
C238
C242
C243
C245
C246
C262
C280
C281
C283
C298
C314
C508
C510
C608
C609
C709
C809
C915
C928
C929
C930
Central junction box
Cigar lighter
Clock
Dimmer module
Electronic automatic temperature control module
Exterior lights circuit
Exterior rear view mirror switch
Front blower illumi- nation switch
Function selector switch
Fuse 5a
Fuse 6 15a
G200 (lower left kick panel)
G203 (lower right kick panel)
G402 (left rear wheelwell)
Head
Hot at all times
Instrument cluster (6 bulbs)
Left front power door lock switch
Left front power window switch
Left rear vent window switch
Left rear window switch
Main light switch
Nca
Off
Overhead console
Park
Park lamp relay
Radio
Rear blower illumi- nation switch
Rear integrated control panel
Rear window defogger switch
Right front power door lock switch
Right front power window switch
Right rear vent window switch
Right rear window switch
Roof opening panel switch
S201
S202
S203
S204
S205
S224 (main harn, near near instrument cluster breakout)
S250
S253 (body main harn, behind right side of dash)
S256 (body main harn, near lock relay box breakout)
S258
S286 (main harn, near breakout to relay block)
S500
S600
S701
S801
S913
S923
Steering column assembly
W/ full overhead console

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Ford Expedition 1999

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List of elements for Power Distribution Wiring Diagram (1 of 4) for Ford Expedition 1999:

(body harn, near breakout to lock relay block) s216
(cable assembly harness, near battery) red s1001
(console panel harn, near console blower motor) s305
(main harn, near breakout to main light switch) s212
(main harn, near passenger's air bag) s2013
Air suspension compressor relay
All lock relay
All unlock relay
Anti-lock brake system module (4wabs)
Auxiliary a/c relay
Auxiliary power socket
Battery
Battery junction box
Battery junction box (left side of engine compartment)
Battery junction relay box
C113
C147
Cd changer
Cellular telephone suport electronics
Central junction box (under left side of dash)
Console auxiliary power socket
Daytime running lamps resistor
Driver's unlock relay
Fog lamp relay
From a fuse 8 (diagram 1 of 4)
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 25a
Fuse 30a
Fuse 50a
Generator
Headlamp relay
Horn relay
Lock relay block
Main light switch
Multi- function switch
Nca
Park lamp relay
Passenger's power seat control switch
Radio
Rear integrated control panel
Rear wiper down relay
Rear wiper up relay
Red
Rpo relay block 1
Rpo relay block 2
S1002 (cable assembly harness, near battery)
S108 (engine compt harn, in breakout to bjb)
S109 (engine harness, left side of engine compt)
S2012 (main harn, near radio)
Starter motor
Starter motor relay
Subwoofer amplifier
To fuse (diagram 2 of 4)
To fuse 103 (diagram 1 of 4)
Trailer tow backup lamp relay
Trailer tow battery charge relay
Trailer tow running lamp relay

Power Distribution Wiring Diagram (2 of 4) for Ford Expedition 1999

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List of elements for Power Distribution Wiring Diagram (2 of 4) for Ford Expedition 1999:

(diagram 3 of 4)
(engine compt harn, left rear of engine compt) s112
(engine compt harn, left rear of engine compt) s113
(main harn, in breakout to fuse relay panel) s265
(main harn, in breakout to transfer case) s213
(main harn, left rear of engine compt)
(main harn, near blower motor speed controller) s2014
(main harn, near breakout to instrument cluster) s222
(main harn, near breakout to instrument cluster) s223
Acc
Acc delay relay
Adjustable pedal switch
Air suspension/ evo steering module
Battery junction box
Battery junction box (left side of engine compt)
Blend door actuator
Blower relay
Blower/ flasher relay block
C142
C242
C243
C256
C267
C295
C928
Cellular phone support electronics
Central junction box
Central junction box (under left side of dash)
Circuit breaker 30a
Clock
Compass sensor
Daytime running lamps relay 2
Digital trans- mission range sensor
Driver's heated seat module
Driver's power seat control switch
Driver's seat module
Electronic variable orifice module
From b fuse 101 (diagram 1 of 4)
Front washer pump relay
Fuel pump relay
Function selector switch assembly
Fuse 15a
Fuse 20a
Fuse 30a
Fuse 40a
Fuse 50a
Fuse 5a
Generic electronic module
Heated grid relay
Ignition switch
Instrument cluster
Lock
Nca
Off
Overhead trip computer module
Passenger's heated seat module
Pcm power relay
Radio
Rear washer pump relay
Red
Remote anti-theft personality module
Rpo relay block 2
Run
S214 (main harn, near steering wheel rotation sensor)
S215 (main harn, in breakout to ignition switch)
S297
S426 (safety belt harn, overhead console)
S426 (seat belt harn, over- head console)
Shift lock actuator
Speed control servo
Start
Steering wheel rotation sensor
To fuse 2
To fuse 20
To fuse 22 (diagram 4 of 4)
To fuse 29 (diagram 3 of 4)
Torque on demand relay
Trailer adapter (electronic brake control)
Transfer case shift relays
Vent window/ moonroof relay
W/ memory
W/o memory
Windshield wiper motor
Wiper hi/lo relay
Wiper run/park relay
Wot relay

Power Distribution Wiring Diagram (3 of 4) for Ford Expedition 1999

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List of elements for Power Distribution Wiring Diagram (3 of 4) for Ford Expedition 1999:

(body harn, near breakout to park brake switch) s220
(diagram 2 of 4) c
(engine harn, in breakout to fuel injector 7) s162
(fuel charge harn, right rear of engine compt) s117
(fuel charge harness, near breakout to noise cap 2) s119
(fuel charge harness, right rear of engine compt) s117
(main harn, near breakout to evo module)
(main harn, near breakout to instrument cluster) s225
(main harn, near breakout to instrument cluster) s289
(seat belt retractor harn, near breakout to transfer case) s307
5.4l
Air suspension service switch
Air suspension/ evo steering module
Autolamp module
Battery junction box
Battery saver relay
C216
C243
C257
C267
C268
C295
C356
Central junction box (under left side of dash)
Clock
Coil on plug 1
Coil on plug 2
Coil on plug 3
Coil on plug 4
Coil on plug 5
Coil on plug 6
Coil on plug 7
Coil on plug 8
Digital transmission range sensor
Driver's power seat control switch
Driver's seat module
Electronic automatic temperature control module
Expedition w/ 4.6l engine only
From fuse 103
From fuse 21 (diagram 2 of 4)
From ignition switch (diagram 2 of 4)
Fuse 15a
Fuse 30a
Fuse 5a
Generic electronic module
Headlamp relay
Ignition coils 1 & 2
Ignition coils 3 & 4
Instrument cluster
Interior lamp relay
Memory set switch
Nca
Overhead trip computer module
Park lamp relay
Passive anti-theft system control module
Pcm power diode
Pcm power relay
Power mirror switch
Powertrain control module
Radio
Radio noise capacitor 1
Radio noise capacitor 2
Remote anti- theft personality module
Rpo relay block 1
S116 (engine harn, left rear of engine compt)
S161 (engine harn, in breakout to fuel injector 3)
S2002 (main harn, near breakout to cental junction box)
S210 (main body harn, near breakout to central junction box)
S219
To fuse 3 (diagram 4 of 4)
Transmission control switch

Power Distribution Wiring Diagram (4 of 4) for Ford Expedition 1999

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List of elements for Power Distribution Wiring Diagram (4 of 4) for Ford Expedition 1999:

(front seat- back pad harness, near passenger's heated seat switch) s328
(main body harn, near breakout to eatc module) s292
(main harn, in breakout to central junction box) s228
(main harn, near breakout to 4wd mode switch) s2005
(main harn, near breakout to central junction box) s2001
(navigator only)
4 wheel anti-lock brake system module
Auxiliary a/c blend actautor
Auxiliary a/c control module
Auxiliary a/c mode actuator
Auxiliary a/c relay
Battery junction box
Blower relay
Blower/ flasher relay block
Brake pedal position switch
Brake pressure switch
C146
C242
C243
C267
C436
Central junction box (under left side of dash)
Cigar lighter
Console blower relay
Data link connector
Driver's heated seat module
Driver's heated seat switch
Electronic automatic temperature control
Electronic day/ night mirror
Flasher relay
From fuse 4 (diagram 3 of 4)
From ignition switch (diagram 2 of 4)
Function selector switch assembly
Fuse 10a
Fuse 20a
Fuse 5a
Fuse 5a (navigator only)
G203 (right kick panel)
Generic electronic module
Nca
Passenger's heated seat module
Passenger's heated seat switch
Rear integrated control panel
Restraints control module
Rpo relay block 1
Rpo relay block 2
S205
S325 (seatbelt harn, near driver's heated seat switch)
S422 (seatbelt harn, near breakout to a/c mode switch)
Tan/red
Trailer tow battery charge relay
W/ aux a/c
W/o aux a/c

POWER DOOR LOCKS

Power Door Lock Wiring Diagram for Ford Expedition 1999

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List of elements for Power Door Lock Wiring Diagram for Ford Expedition 1999:

(body harn, near breakout to in-line conn, near right side of dash) s254
(body harn, near breakout to remote anti-theft person- ality module) s234
(body main harn, near parking brake switch breakout) s603
(body main harn, near right door courtesy lamp breakout) s504
87a
All lock relay
All unlock relay
Battery junction box (on left side of engine compt)
C256
C257
Driver's unlock relay
Fuse 30a
G203 (lower right kick panel)
Hot at all times
Interior lights system
Left front door lock actuator
Left front power door lock switch
Left rear door lock actuator
Lifgate door lock actuator
Lock
Lock relay block (behind right side of dash)
Remote anti-theft personality module (behind left side of dash)
Right front door lock actuator
Right front power door lock switch
Right rear door lock actuator
S216
S235 (body harn, near breakout to remote anti-theft personality module)
S255 (body harn, near break- out to lock relay block)
S258
S500
S501
S600
S604 (body harn, near breakout to right door courtesy lamp)
Unlock

POWER MIRRORS

Power Mirror Wiring Diagram for Ford Expedition 1999

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List of elements for Power Mirror Wiring Diagram for Ford Expedition 1999:

(1999) (2000-
(lower right kick panel) g203
01)
Central junction box (under left side of dash)
Direc- tional control switch
Down
Exterior lights
Exterior rear view mirror switch
Fuse 15a 7.5a
G203 (lower right kick panel)
Hot at all times
Illum
L/r
Left
Left exterior rear view mirror
Nca
Red
Right
Right exterior rear view mirror
S220
S501
S503 (body harn, near left front grommet)
S600
U/d

POWER SEATS

6-Way Power Seat Wiring Diagram for Ford Expedition 1999

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List of elements for 6-Way Power Seat Wiring Diagram for Ford Expedition 1999:

Battery junction box
Driver power seat control switch
Driver seat motor assembly
Entire seat
Front height motor
Front of seat
Fuse 30a
Fwd/rwd motor
G402 (left rear wheelwell)
Hot at all times
Nca
Passenger power seat control switch
Passenger seat motor assembly
Rear height motor
Rear of seat
Rwd fwd
S326
S329
S414

Adjustable Pedal Wiring Diagram for Ford Expedition 1999

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List of elements for Adjustable Pedal Wiring Diagram for Ford Expedition 1999:

Adjustable pedal motor (behind left side of dash)
Adjustable pedal switch
Battery junction box (on left side of engine compartment)
Fuse 30a
G203 (lower left kick panel)
Hot at all times
Interior lights circuit
Nca
Red
S204

Heated Seats Wiring Diagram for Ford Expedition 1999

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List of elements for Heated Seats Wiring Diagram for Ford Expedition 1999:

Battery junction box
C243
Central junction box
Driver heated seat module (under left front seat)
Driver heated seat switch
Driver seat back heater
Driver seat heater/ temperature sensor
Fuse 10a
Fuse 30a
G402 (left rear wheelwell)
Ground
Heat feed
Heat return
Hot at all times
Hot in run
Illum sw
Nca
Off
Passenger heated seat module (under right front seat)
Passenger heated seat switch
Passenger seat back heater
Passenger seat heater/ temperature sensor
Power
S2014
S325
S326
S328
S329
S414
S422
S426
Snsr feed
Snsr return
Switch

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for Ford Expedition 1999

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List of elements for Power Top/Sunroof Wiring Diagrams for Ford Expedition 1999:

(interior lamp harn, near breakout to roof opening panel assembly)
(main harn, near breakout to left kick panel ground) s299
Accessory delay relay
Audio system
Batt saver
Battery junction box (on left side of engine compartment)
Battery saver relay
C242
C243
C918
C919
Central junction box (under left side of dash)
Circuit breaker 30a
Close
Close/up
Expedition
Flush
Fuse 10a
Fuse 15a
Fuse 30a
Fuse 50a
G402 (left rear wheelwell)
G908 (near roof opening panel motor assy)
Generic electronic module
Ground
Hot at all times
Interior lights system
Left rear vent window switch
Left vent window motor
Ls common
Motor out 1
Motor out 2
Navigator
Nca
One tch dn hi
Open
Open/dn
Pnk
Pnk b
Power
Power windows system
Range
Red
Right rear vent window switch
Right vent window motor
Roof opening panel assembly (center of headliner)
Roof opening panel motor assembly (center of headliner)
Roof opening panel switch
Rpo relay block 2 (front of left rear wheelwell)
S2006 (main harn, near central junction box)
S424
S426
S901 (interior lamp harn, near breakout to right rear vent window switch)
S913
S914
S923
Soft stop
Sw 1
Sw 2
Sw 3
Sw common
Tan/ red
Tan/red
Vent window/ roof opening panel relay
W/ roof opening panel
W/o roof opening panel

POWER WINDOWS

Power Window Wiring Diagram for Ford Expedition 1999

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List of elements for Power Window Wiring Diagram for Ford Expedition 1999:

(body harn, near breakout to 16 pin conn, behind right side of dash)
87a
Acc delay relay
Batt saver
Battery junction box
Battery saver relay
C242
C243
C267
C509
C510
Central junction box
Circuit breaker 30a
Down sw input
Fuse 15a
Fuse 50a
G203 (lower right kick panel)
Generic elec- tronic module
Ground
Hot at all times
Interior lights system
Left front power window motor
Left front power window switch
Left rear power window motor
Left rear power window switch
Left rear switch
Left switch
Lock out
One tch dn hi
One tch dn lo
One touch down relay
Otd sw input
Otd switch
Power tops system
Right front power window motor
Right front power window switch
Right rear power window motor
Right rear power window switch
Right rear switch
Right switch
S205
S252 (body harn, near breakout to park brake switch)
S257
S299 (except 1997) (main harn, near breakout to g200, left kick panel)
S500
S600
S701
S801
Shunt (0.015 +/- 0.001 ohm)

RADIO

Radio Wiring Diagrams, with Amplifier for Ford Expedition 1999

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List of elements for Radio Wiring Diagrams, with Amplifier for Ford Expedition 1999:

(dash harn, near break- out to console blower motor)
(dash harn, near break- out to torque on demand switch) s303
(lower right kick panel) g203
(main harn, behind left side of dash)
Air bag sliding contact
Amp l rear (+)
Amp r rear (+)
Audio network
Audio on
Audio shield
Audio system on
Audio sytem on
Audio/ climate control switch assembly
Band
Bare
Body computer
C2007
C261
C262
C281
C314
C442
Cd changer
Cd left sig in
Cd left sig out
Cd player shield
Cd right sig in
Cd right sig out
Cell phone
Cell phone (+)
Cell phone (-)
Cell phone shield
Cellular phone wiring
Central junction box (under left side of dash)
Delayed acc power
Dwn
Electronic automatic temperature control module (behind center of dash)
Fuse 10a
Fuse 25a
Fuse 5a
Fused ignition
G202 (upper left kick panel)
G203 (lower right kick panel)
Generic electronic module
Ground
High audio mute
Hot at all times
Hot in start
Illum
Interior lights
L front spkr feed
L rear sig (+)
L rear sig (-)
L rear spkr feed
Left front speaker
Left rear speaker
Left sig (+)
Left sig (-)
Mem
Nca
Power
Protocol a
Protocol b
R front spkr feed
R rear sig (+)
R rear sig (-)
R rear spkr feed
Radio
Radio control
Rear integrated control panel
Right front speaker
Right rear speaker
Right sig (+)
Right sig (-)
S201
S2010
S2011
S2012
S203
S304
S305
S306
S322
S323
Shield
Sub speaker
Subwoofer
Subwoofer (+)
Subwoofer (-)
Subwoofer amplifier
Tan
Vehicle speed sig
Vss

Radio Wiring Diagrams, without Amplifier for Ford Expedition 1999

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List of elements for Radio Wiring Diagrams, without Amplifier for Ford Expedition 1999:

(dash harn, near breakout to console blower motor)
(dash harn, near breakout to torque on demand switch) s303
(lower right kick panel) g203
(main harn, behind left side of dash)
Amp l rear (+)
Amp r rear (+)
Antenna
Audio network
Audio on
Audio system on
Audio sytem on
Bare
C261
C262
C314
Cd changer
Cd left sig in
Cd left sig out
Cd player shield
Cd right sig in
Cd right sig out
Cell phone
Cell phone (+)
Cell phone (-)
Cell phone shield
Cellular phone wiring
Central junction box (under left side of dash)
Fuse 10a
Fuse 25a
Fuse 5a
Fused ignition
G202 (upper left kick panel)
Generic electronic module
Ground
Hot at all times
Hot in run or acc
Hot in start
Illum
Interior lights
L front spkr feed
L rear sig (+)
L rear sig (-)
L rear spkr feed
Left front speaker
Left rear speaker
Left sig (+)
Left sig (-)
Nca
Power
Protocol a
Protocol b
R front spkr feed
R rear sig (+)
R rear sig (-)
R rear spkr feed
Radio
Rear integrated control panel
Right front speaker
Right rear speaker
Right sig (+)
Right sig (-)
S201
S2010
S2011
S2012
S203
S223
S304
S305
S306
S322
S323
Shield
Tan
Vehicle speed sig
Vss

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Ford Expedition 1999

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List of elements for Shift Interlock Wiring Diagram for Ford Expedition 1999:

Brake pedal position (bpp) switch (under left side of dash)
C242
C243
Central junction box (under left side of dash)
Fuse 15 5a
Fuse 6 5a
G200 (lower left kick panel)
G203 (lower right kick panel)
Hot at all times
Hot in run
S204
S208
S265
Shift lock actuator (in steering column)
Solid state

STARTING/CHARGING

Charging Wiring Diagram for Ford Expedition 1999

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List of elements for Charging Wiring Diagram for Ford Expedition 1999:

(1999) (2000-01)
0hms
Acc
Battery
Battery junction box (left side of engine compt)
C176
C177
C178
C238
C243
Central junction box (under left side of dash)
Charge indicator
Fuse 2oa
Fuse 30a
Fuse 50a 40a
Fuse link a (12 ga- gray) (near battery)
Fuse link b (12 ga- gray) (near battery)
G101 (right side of eng compt, near battery)
G123 (right side of firewall)
Generator
Ignition switch
Instrument cluster
Lock
Off
Red
Run
S1002 (cable harn, near battery)
S2002 (main harn, near central junction box)
S214
Start
Starter motor
Starter motor relay (right rear of engine compt)

Starting Wiring Diagram for Ford Expedition 1999

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List of elements for Starting Wiring Diagram for Ford Expedition 1999:

(1999) (2000-01)
Acc
Battery
Battery junction box (left side of engine compt)
C243
Central junction box (under left side of dash)
Charging circuit
Digital transmission range (dtr) sensor (left side of transmission)
Fuse 15a
Fuse 50a 40a
Fuse link a (12 ga- gray) (near battery)
Fuse link b (12 ga- gray) (near battery)
G101 (right side of engine compt, near battery)
G123 (right side of firewall)
Ignition switch
Lock
Near battery)
Off
Power distribution
Red
Run
S1002 (cable harn, near battery)
S214
Sta
Start
Starter motor (lower right side of engine)
Starter motor relay (right rear of engine compt)
Tan/ red

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Ford Expedition 1999

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List of elements for Supplemental Restraint Wiring Diagram for Ford Expedition 1999:

(engine harn, on left radiator support)
(under center of dash)
Air bag indicator
Air bag sliding contact
C2005
C228
C238
C239
C242
C243
Central junction box (under left side of dash)
Computer data lines system
Connector (dlc)
Cr5ash sensor
Data link
Data link (dlc)
Driver air bag
Drvr air bag feed
Drvr air bag return
Fuse 30a
Fused ignition
G200 (lower left kick panel)
Generic electronic module (gem) (behind left side of dash)
Ground
Hot in run
Hot in run or start
Indicator driver
Instrument cluster
Left primary crash sensor (left front of engine compt)
Nca
Pass air bag feed
Pass air bag return
Passenger air bag
Pin shorting bar is engaged when module connector is disconnected (shorting bar is connected between the following pins: 3-4, 6-7, 20-21)
Restraints control module (behind right side of dash)
Right primary crash sensor (right front of engine compt)
S157
S2002
S208
S229 (main harn, near breakout to instrument cluster)
Shorting bar
Tone in
Tone request

TRANSMISSION

4.6L

4.6L, A/T Wiring Diagram, 4R70W for Ford Expedition 1999

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List of elements for 4.6L, A/T Wiring Diagram, 4R70W for Ford Expedition 1999:

(dash harn, near breakout to cluster)
(engine ctrl harn, near breakout to starter relay)
(engine ctrl harn, right rear of engine compt)
(fuel charge harn, near breakout to h2os 21)
(in reversing lamp harn)
(rear of engine compartment) g123
(under center
4r70w transmission (mounted under center of vehicle)
Air conditioning system
Autolamp module, instrument cluster
Battery junction box (left side of engine compt)
Boo
Brake pedal position switch (under left side of dash)
C174
Central junction box (under left side of dash)
Cht
Cylinder head temperature (cht) sensor (top front of engine)
Data
Digital transmission range sensor (left side of transmission)
Dlc (+)
Dlc (-)
Electronic pressure control solenoid
Engine controls system
Epc
Fuse 15a
Fuse 30a
Fuse 5a
G108 (left front radiator support)
Gem, anti- theft module, shift lock actuator
Hot at all times
Hot in run or start
Iat
Ignition coils, radio noise capacitor
Instrument cluster, anti- theft system
Intake air temperature sensor (on intake manifold)
Of dash) data link connector
Oss
Output shaft speed sensor (left side of transmission)
Pcm power diode
Pcm power relay
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
R p
Red
S100
S106
S116
S127 (eng ctrl harn, near breakout to wiper motor)
S130 (engine ctrl harn, left rear of eng compt)
S135
S136
S137
S138
S140
S141
S2002
S2003 (main harn, near breakout to cluster)
S2007
S2008
S225
Shift solenoids (ss)
Sig rtn
Speed control servo, 4wabs module
Ss1
Ss2
Tcc
Tcil
Tcs
Tft
Throttle position (tp) sensor (on throttle body)
Torque converter clutch (tcc) solenoid
Tr1
Tr2
Tr3
Tr4
Transmission control switch (tcs) (end of transmission selector lever)
Transmission fluid temperature sensor
Vpwr
Vref

4WD Wiring Diagram for Ford Expedition 1999

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List of elements for 4WD Wiring Diagram for Ford Expedition 1999:

(4h) ohms
(4l) ohms
(4wd) 1.5k ohms
(behind center of dash)
(left front radiator support) g108
(lower right kick panel) g203
(main harn, near breakout to airbag diagn monitor) s278
(main harn, near breakout to transfer case)
(right side of engine compt)
(seatbelt harn, near breakout to transfer case)
(under left side of dash) central junction box
4 wheel drive mode switch
4wd low out
4wd output
4x4 "high range" indicator
4x4 "low range" indicator
4x4 high ind
4x4 mode sw
A4wd out
Abs input
Air suspension/ evo steering module
Anti-lock brake system
Apron) g105
Battery junction box (left side of engine compt)
Bpp sw input
Brake pedal position switch (under left side of dash)
C174
C236
C238
C239
C240
C241
C243
C267
C296
Central junction box (under left side of dash)
Digital transmission range (dtr) sensor (left side of transmission)
Exterior lights
Frnt spd sens
Front speed sensor
Fuse 10a
Fuse 30a
Fuse 5a
G108 (left front radiator support)
Generic electronic module (gem) (behind left side of dash)
H2l
H2l rly ctrl
Hall effect
Hot at all times
Hot in run
Illumination
Instrument cluster
Interior lights (instrument illumination)
L2h
L2h rly ctrl
Magnetic clutch
Neutral sw in
Powertrain control module
Rear spd sens
Rear speed sensor
S102
S201
S202
S213
S228
S231 (main harn, near breakout to instr cluster)
S233
S233 (main harn, near breakout to gem)
S265
S301
S302
Shift lock, steering wheel rotation sensor, compass sensor, overhead trip computer
Shift motor
Sig return
Sw a input
Sw b input
Sw c input
Sw d input
Tod relay
Torque on demand (tod) relay (behind center of dash)
Trailer tow battery charge relay, flasher relay, rear blower switch, a/c mode actuator, a/c blend actuator, electronic day/night mirror, driver heated seat switch & module, passenger heated seat switch & module
Transfer case assembly
Transfer case shift relays (behind center of dash)
Vss (+)
Wiper/washer (multi-function switch)

5.4L

4WD Wiring Diagram for Ford Expedition 1999

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List of elements for 4WD Wiring Diagram for Ford Expedition 1999:

(4h) ohms
(4l) ohms
(4wd) 1.5k ohms
(behind center of dash)
(left front radiator support) g108
(lower right kick panel) g203
(main harn, near breakout to airbag diagn monitor) s278
(main harn, near breakout to transfer case)
(right side of engine compt)
(seatbelt harn, near breakout to transfer case)
(under left side of dash) central junction box
4 wheel drive mode switch
4wd low out
4wd output
4x4 "high range" indicator
4x4 "low range" indicator
4x4 high ind
4x4 mode sw
A4wd out
Abs input
Air suspension/ evo steering module
Anti-lock brake system
Apron) g105
Battery junction box (left side of engine compt)
Bpp sw input
Brake pedal position switch (under left side of dash)
C174
C236
C238
C239
C240
C241
C243
C267
C296
Central junction box (under left side of dash)
Digital transmission range (dtr) sensor (left side of transmission)
Exterior lights
Frnt spd sens
Front speed sensor
Fuse 10a
Fuse 30a
Fuse 5a
G108 (left front radiator support)
Generic electronic module (gem) (behind left side of dash)
H2l
H2l rly ctrl
Hall effect
Hot at all times
Hot in run
Illumination
Instrument cluster
Interior lights (instrument illumination)
L2h
L2h rly ctrl
Magnetic clutch
Neutral sw in
Powertrain control module
Rear spd sens
Rear speed sensor
S102
S201
S202
S213
S228
S231 (main harn, near breakout to instr cluster)
S233
S233 (main harn, near breakout to gem)
S265
S301
S302
Shift lock, steering wheel rotation sensor, compass sensor, overhead trip computer
Shift motor
Sig return
Sw a input
Sw b input
Sw c input
Sw d input
Tod relay
Torque on demand (tod) relay (behind center of dash)
Trailer tow battery charge relay, flasher relay, rear blower switch, a/c mode actuator, a/c blend actuator, electronic day/night mirror, driver heated seat switch & module, passenger heated seat switch & module
Transfer case assembly
Transfer case shift relays (behind center of dash)
Vss (+)
Wiper/washer (multi-function switch)