All Wiring Diagrams for Ford Pickup F250 1998 model

AIR CONDITIONING

A/C Wiring Diagram for Ford Pickup F250 1998

List of elements for A/C Wiring Diagram for Ford Pickup F250 1998:

(engine control sensor harness, near breakout to mega fuse (pdb)) s126
(heater blower motor feed harness, in breakout to blower motor resistor)
(lower right kick panel inner) g203
(main harness, in breakout to blower/flasher relay block) s202
(main harness, near breakout to in-line connector behind right side of dash) s200
(main harness, near breakout to instrument cluster) s222
(rear of right fender apron) g105
0.6 ohms
2.7 ohms
3.8 ohms
87a
A/c
A/c clutch cycling pressure switch (right rear corner of engine compartment)
A/c clutch diode (taped in harness, near a/c compressor)
A/c compressor clutch solenoid (left side of engine compartment)
A/c pressure cut off switch (right side of engine compartment)
Blend door actuator (behind center of dash)
Blend door potentiometer
Blower motor (right side of engine compartment)
Blower motor resistor (right side of engine compartment, near blower motor)
Blower motor switch
Blower relay
Blower/flasher relay block (behind center of dash)
C217
C218
C219
C220
C242
C243
Cold
Def
Defrost
Floor
Flr & def
Flr/def
Function selector switch
Fuse 10a
Fuse 15a
Fuse 40a
G203 (lower right kick panel inner)
Hot at all times
Hot in run
Illumi- nation
Interior lights system
Junction box fuse/relay panel
Max a/c
Med hi
Med lo
Mode selector switch
Near breakout to in-line connector, right rear of engine compartment) s103
Off panel/floor
Panel
Panel & off floor
Power distribution box
Powertrain control module (pcm) (right side of engine compartment)
S125
S203 (main harness, near breakout to passenger's air bag)
Warm

Heater Wiring Diagram for Ford Pickup F250 1998

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List of elements for Heater Wiring Diagram for Ford Pickup F250 1998:

(heater blower motor feed harness, in breakout to blower motor resistor)
(lower right kick panel inner) g203
(main harness, near breakout to in-line connector behind right side of dash)
0.6 ohms
2.7 ohms
3.8 ohms
87a
Blend door actuator (behind center of dash)
Blend door potentiometer
Blower motor
Blower motor resistor (right side of engine compartment, near blower motor)
Blower motor switch
Blower relay
Blower/flasher relay block (behind center of dash)
C217
C218
C219
C220
C242
C243
Cold
Def
Floor
Flr & def
Function selector switch
Fuse 10a
Fuse 15a
Fuse 40a
G203 (lower right kick panel inner)
Hot at all times
Hot in run
Illumi- nation
Interior lights system
Junction box fuse/ relay box
Med hi
Med lo
Mode selector switch
Off
Panel
Panel &
Power distribution box
S125
S200
S201 (main harness, near breakout to transfer case shift relay)
S202 (main harness, in breakout to blower/flasher relay block)
S203 (main harness, near breakout to passenger's air bag)
S222 (main harness, near breakout to inst- rument cluster)
Warm

ANTI-LOCK BRAKES

All-Wheel ABS Wiring Diagram for Ford Pickup F250 1998

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List of elements for All-Wheel ABS Wiring Diagram for Ford Pickup F250 1998:

(engine control sensor harn, near breakout to 4wabs module)
(main harness near breakout to radio)
4 wheel anti-lock brakes system (4wabs) module (left side of engine compt)
4 wheel drive input
4wabs ind ctrl
Anti-lock brake ind
Brake fluid level switch (on brake fluid reservoir)
Brake fluid lvl
Brake on/off switch
Brake pedal position switch (behind left side of dash)
C146
C147
C236
C238
C242
C243
Data link connector (left side of dash)
Diagnostic trigger
Differential speed sensor (on rear axle)
Fuse 15a
Fuse 5a
Fuse 60a
G108 (left front radiator support)
Ground
Hot at all times
Hot in run
Hot in run or start
Ignition feed
Instrument cluster
Instrument cluster system
Junction box fuse/relay panel
Left front sensor (high)
Left front sensor (low)
Left front wheel speed sensor (at wheel)
Power (b+)
Power distribution box
Rear sensor (high)
Rear sensor (low)
Red brake ind
Red brake lamp relay ctrl
Red brake warning relay
Red lamp input
Red/pnk
Right front sensor (high)
Right front sensor (low)
Right front wheel speed sensor (at wheel)
S106 (engine control sensor harness, near breakout to g108)
S121
S124 (engine control sensor harn, near breakout to 4wabs module)
S144
S225 (main harn, near breakout to cluster)
S229
Tan/red

Rear Wheel ABS Wiring Diagram for Ford Pickup F250 1998

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List of elements for Rear Wheel ABS Wiring Diagram for Ford Pickup F250 1998:

4x4 input sig
Acc
Anti-lock brake ind
Boo sw input
Brake fluid level indicator switch (on brake fluid reservoir)
Brake fluid lvl sens (lo)
Brake pedal position switch (under left side of dash)
Brake warning diode 1 (in pdc)
Brake warning resistor assembly (in pdc)
Breakout to cluster)
C242
C243
Diag test/keep alive input
Diff spd sens (hi)
Diff spd sens (lo)
Differential speed sensor (on rear axle)
Differential speed sensor datalink connector (left side of dash)
Dump sol output
Dump solenoid
Fuse 13 15a
Fuse 29 5a
G108 (left front radiator support)
G200 (lower left kick panel)
G203 (lower right kick panel)
Ground
Hot at all times
Hot in start or run
Ignition switch
Instrument cluster
Instrument cluster system
Iso sol output
Isolation solenoid
Junction box fuse/relay panel
Lock
Nca
Off
Power input
Rabs valve assembly (on frame rail, near front of transmission)
Rear anti-lock brake (rabs) module (behind right side of dash, behind glove compartment)
Red
Red/pnk
Run
S106
S204
S208
S217
S221
S225
S287 (main harn, behind left side of dash)
S288 (main harn, behind left side of dash)
S291 (main harn, near breakout to rabs module)
Start
Transmissions system
Valve reset switch
Vlv reset input
Warn lp output

ANTI-THEFT

Anti-theft Wiring Diagram for Ford Pickup F250 1998

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List of elements for Anti-theft Wiring Diagram for Ford Pickup F250 1998:

87a
All lock
All unlock
Antenna
Anti-theft indicator
Boo switch
Brake on/off switch (behind left side of dash)
C236
C242
C243
C256
C257
Data link connector (behind center of dash)
Datalink
Disarm in
Door ajar
Door ajar out
Door locks
Driver's unlock relay (behind right side of dash)
Drvr unlock
Electronic suspension system
Ext lights
Exterior lights
Exterior lights (backup lamps)
Fuse 15a
Fuse 5a
G200 (lower left kick panel)
G203 (lower right kick panel)
Generic electronic module (gem) (behind left side of dash)
Ground
Horn
Horns system
Hot at all times
Hot in run ar acc
Hot in start
Ignition
Ignition cylinder tamper switch (inside column)
Illum entry in
Indicator
Instrument cluster
Int lights
Interrupt relay
Junction box fuse/ relay panel
Left door anti-theft switch (in left door)
Nca
Power
Power distribution box (left side of engine compt)
Remote anti-theft personality (rap) module (behind left side of dash)
Reverse in
Right door anti-theft switch (in right door)
Rpo relay block (right side of dash)
S204
S208
S216
S220
S221
S223
S226
S229 (main harn, near breakout to evo module)
S231 (main harn, near breakout to inst cluster)
S268 (main harn, near breakout to gem)
S501
S600
Start intrpt
Starter
Starting/ charging
Tamper sw

BODY COMPUTER

Body Computer Wiring Diagrams (1 of 2) for Ford Pickup F250 1998

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List of elements for Body Computer Wiring Diagrams (1 of 2) for Ford Pickup F250 1998:

(not used)
87a
Accessory delay relay
Accessory delay relay ctrl
Battery saver relay
Battery saver relay ctrl
C242
C243
C267
Electronic suspension system
Engine controls system
Fuse 15a
Fuse 30a
Fuse 5a
G200 (lower left kick panel)
G203 (lower right kick panel)
Gem only *
Generic electronic module (gem)/ central timer module (ctm)
Ground
Hot at all times
Hot in
Hot in run
Hot in run or acc
Ign (start) gnd (park/neutral)
Ignition (acc/run)
Ignition (run)
Instrument cluster system
Interior lamp relay
Interior lamp relay ctrl
Interior lights system
Junction box fuse/ relay panel (under left side of dash)
Lf window motor sense (high) *
Lf window motor sense (low) *
Lf window switch in (down) *
Lf window switch in (up) *
One touch down relay
One touch down relay ctrl *
One touch down switch in *
Power (b+)
Power distribution box (left side of engine compt)
Power windows system
S205
S207
Start
Vehicle speed (+)

Body Computer Wiring Diagrams (2 of 2) for Ford Pickup F250 1998

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List of elements for Body Computer Wiring Diagrams (2 of 2) for Ford Pickup F250 1998:

(behind center of dash) ctm diagnostic connector
(lower right kick panel) g203
(near 4wd mode switch) s238
(park/headlamps on) in
4 high to 4 low relay ctrl
4 low to 4 high relay ctrl
4x2 center axle solenoid ctrl
4x4 center axle solenoid ctrl
4x4 high range ind ctrl
4x4 low range in
4x4 low range ind control
4x4 mode switch in
4x4 switch in
Anti-theft system (rap module)
Brake on/off 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
Ctm diagnostic in
Diagnostic link
Door ajar indicator ctrl
Door ajar out
Exterior lights system (brake on/off switch)
G200 (lower left kick panel)
Gem only * ctm only **
Generic electronic module (gem)/ central timer module (ctm) (behind center of dash)
Ground
Ignition key warning switch in
Illuminated entry request in
Instrument cluster system (i/c c236 pin 3)
Instrument cluster system (i/c c236 pin 4)
Instrument cluster system (i/c c238 pin 11)
Instrument cluster system (i/c c238 pin 9)
Interval delay/wash in
Lf door ajar switch in
Red
Rf door ajar switch in
S203
S208
Seat belt indicator ctrl
Seat belt warning switch in
Signal return
Tan/red
Trans in neutral in
Transfer case return
Transmission controls system (4 wheel drive mode switch)
Transmission controls system (4wd mode switch)
Transmission controls system (4x2 axle disconnect solenoid)
Transmission controls system (4x4 axle disconnect solenoid)
Transmission controls system (4x4 low indicator switch)
Transmission controls system (electric clutch relay)
Transmission controls system (transfer case assembly)
Transmission controls system (transfer case shift relays)
Transmission controls system (transmission range sensor)
Trnsfer case clutch relay out
Warning systems (ignition key warning switch)
Warning systems (lf door ajar switch)
Warning systems (main light switch)
Warning systems (rf door ajar switch)
Warning systems (seat belt switch)
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 (run/park relay)
Wiper/washer system (washer pump relay)

COMPUTER DATA LINES

Computer Data Lines for Ford Pickup F250 1998

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List of elements for Computer Data Lines for Ford Pickup F250 1998:

(main harn, near breakout to radio) s229
(under center of dash) data link connector (dlc)
4 wheel anti-lock brake system (4wabs) control module (on left side of engine compt)
Air bag diagnostic monitor (behind right side of dash)
C208
C239
C242
C256
Dlc
Dlc bus (+)
Dlc bus (-)
Fuse 12 5a
G123 (rear of engine compt)
G203 (lower right kick panel)
Generic electronic module (gem) (behind left side of dash)
Hot at all times
Junction box fuse/ relay panel (under left side of dash)
Powertrain control module (pcm) (on right side of engine compt)
Remote anti-theft personality (rap) module (behind left side of dash)
S202

CRUISE CONTROL

Cruise Control Wiring Diagram for Ford Pickup F250 1998

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List of elements for Cruise Control Wiring Diagram for Ford Pickup F250 1998:

(main harn, near breakout to instrument cluster) s231
15a
20a
A/t
Accel
Brake pedal position (bpp) switch (under left side of dash)
Brake press in
Brake pressure switch (left rear corner of engine compt)
C233
C234
C239
C242
C257
Clock- spring assembly (top of steering column)
Clutch pedal position (ccp) switch (on clutch pedal arm)
Clutch pedal position (ccp) switch jumper (left side of dash)
Coast
Control sw gnd
Control sw in
Driver's airbag
Fuse 13
Fuse 5
G105 (rear of right fender apron)
G200 (lower left kick panel)
G203 (lower right kick panel)
Generic electronic module (gem)/ central timer module (ctm) (behind left side of dash)
Ground
Horn relay (in power distribution box)
Horn switches
Hot at all times
Hot in run
Hrn rly
Ign
Ignition key warning switch
Interior lights system
Junction box fuse/relay panel
M/t
Nca
Off
Ohms
Power distri- bution box
Remote anti-theft personality (rap) module (behind left side of dash)
Resume
S102
S107
S112
S143 (engine sensor harn, near breakout to vapor management valve)
S221
Set/
Speed control servo/ amplifier assembly (in left side of engine compt)
Speed control switch assembly
Steering column assembly
Steering column ground
Vehicle speed input
Vehicle speed sensor (vss) (left rear of trans)

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram for Ford Pickup F250 1998

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List of elements for Electronic Suspension Wiring Diagram for Ford Pickup F250 1998:

Air suspension switch (behind right side of dash)
Body computer
C237
C242
C276
C277
Check suspension indicator
Comp relay ctrl
Connector (behind right side of dash)
Datalink
Engine compartment fuse/relay box
Engine controls
Fuse 15a
Fuse 50a
Fuse 5a
G108 (left front radiator support)
G109 (right front radiator support
G200 (lower left kick panel)
G203 (lower right kick panel)
Ground
Hot at all times
Hot in run
Instrument cluster
Junction box fuse/ relay panel
Left air spring solenoid (left rear of vehicle, on air spring)
Left rear height sensor (left rear wheelwell)
Lft height in (high)
Lft height in (low)
Lft spring ctrl
Nca
Not used
Pnk
Power (bat)
Power (run)
Power distribution box
Rear air suspension (ras) module (behind center of dash)
Rear air suspension compressor motor and vent soenoid (right front of engine compt)
Rear air suspension compressor relay
Rear air suspension data link
Red
Rht height in (high)
Rht height in (low)
Rht spring ctrl
Right air spring solenoid (right rear of vehicle, on air spring)
Right rear height sensor (right rear wheelwell)
S105
S152
S203
S207
S294 (main harn, near breakout to airbag diag monitor)
S409 (rear lamp harn, near breakout to fuel pump module)
S410 (rear lamp harn, near breakout to fuel pump module)
S411
Sensor ground
Sensor power
Service sw in
Vent solenoid ctrl
Warning lamp

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagrams (1 of 4) for Ford Pickup F250 1998

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List of elements for 4.2L, Engine Performance Wiring Diagrams (1 of 4) for Ford Pickup F250 1998:

(engine control harn, near breakout to pcm)
(engine control sensor harn, near breakout to ground g123)
(engine control sensor harn, near breakout to vapor management valve)
(fuel charge harn, in breakout to intake runner control monitor)
(fuel charge harn, near breakout to radio noise capacitor)
(left radiator support) g108
(lower left kick panel) g200
(partial: 16-pin connector)
(rear of engine compt) g123
4x4 hi/low indicator switch & generic electronic module
4x4 low ind sw
820 ohms
Accs
Air conditioning system
C243
Case gnd
Ckp(+)
Ckp(-)
Data link (+)
Data link (-)
Data link connector (below center of dash)
Digital transmission range sensor (dtr sensor) (left side of transmission)
Ect
Engine fuse module (left side of engine compt)
Evr ctrl
Feps (eprom)
Fp sending unit
Fuel pump mon
Fuse 30a
Fuse 5a
G105 (rear of right fender apron)
Hot at all times
Hot in run or start
Iat
Ign coil 1
Ign coil 2
Ignition coil (top of engine)
Imrc 1
Imrc 2
Instrument cluster system
Intake manifold runner control (left side of engine compt)
Intake manifold runner position (imrp) #1 (left side of engine)
Intake manifold runner position (imrp) #2 (rear of engine)
Junction box fuse/relay panel (under left side of dash)
Maf
Mil
Nca
O/d off
Octane adjust
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Pwr gnd
R n
Radio noise capacitor
Red
Red/ s225
Rr ho2s sig (12)
S100
S103
S106
S107
S116 (engine control sensor harn, near breakout to engine fuse module)
S117
S127
S128
S130
S132
S133
Shift sol 1 (a/t)
Shift sol 2 (a/t)
Spark plugs
Tach out
Tcs (a/t)
Tft
To dtr sensor (diagram 4 of 4)
Tr1
Tr2a
Tr4a
Transmission control indicator lamp
Transmission control switch (a/t)
Tuning valve
Vss (-)

4.2L, Engine Performance Wiring Diagrams (2 of 4) for Ford Pickup F250 1998

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List of elements for 4.2L, Engine Performance Wiring Diagrams (2 of 4) for Ford Pickup F250 1998:

(engine control sensor harn, near breakout to 35-pin conn in left rear of engine compt) s139
(engine control sensor harn, near breakout to 38-pin conn in right rear of engine compt)
(not used)
(speedometer/ odometer) vehicle speed input
(under left side of dash) junction box fuse/relay panel
C120
C236
C237
C243
C267
Crankshaft position sensor (lower front of engine)
Crankshaft position sensor shield
Differential pressure feedback egr sensor (right side of engine)
Electronic suspension system
Engine coolant temperature sensor (front of engine)
Fuel pump relay
Fuel reset switch indicator
Fuel tank pressure sensor (at fuel tank)
Fuse 20a
G123 (rear of engine compt)
Generic electronic module/ central timer module
Hot at all times
Instrument cluster
Intake air temperature sensor (on intake manifold)
Malfunction indicator
Nca
Octane adjust shorting bar (right rear corner of engine compt)
Power distribution box (left side of engine compt)
Red
Red/pnk
S101 (engine control harn, in breakout to pcm)
S135 (fuel charge harn, near breakout to radio noise capacitor)
S136 (fuel charge harn, near breakout to fuel injector 3)
S137 (fuel charge harn, near breakout to starter motor relay)
S138
Tachometer
Throttle position sensor (attached to throttle body)
Vss input

4.2L, Engine Performance Wiring Diagrams (3 of 4) for Ford Pickup F250 1998

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List of elements for 4.2L, Engine Performance Wiring Diagrams (3 of 4) for Ford Pickup F250 1998:

(backup lamp sw to rear lamp feed harn, at breakout to 38-pin conn in right rear of engine compt)
(fuel charge harn, near breakout to 42-pin conn (c120) in right rear of engine compt)
(fuel tank) fuel pump module
(left rear corner of engine compt)
(right side of dash) inertia fuel shut-off switch
4r70w transmission 4r70w transmission
Egr vacuum regulator solenoid (right front of engine)
Electronic pressure control solenoid
Fuel injectors
G108 (left front radiator support)
Idle air control valve (on left side of intake manifold)
Instrument cluster system
Nca
Output shaft speed sensor (left side of transmission)
Red
Red/pnk
S129
S131 (fuel charge harn, near breakout to radio noise capacitor)
S140
S141 (backup lamp sw to rear lamp feed harn, in breakout to 38-pin conn in right rear engine compt)
S400
Shift solenoids
Ss1
Ss2
Tan
Torque converter clutch solenoid
Transmission fluid temperature sensor
Vapor management valve

4.2L, Engine Performance Wiring Diagrams (4 of 4) for Ford Pickup F250 1998

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List of elements for 4.2L, Engine Performance Wiring Diagrams (4 of 4) for Ford Pickup F250 1998:

(left rear of engine compt) speed control servo/amplifier assembly
(left rear of transmission) vehicle speed sensor
(main harn, near breakout to instrument cluster)
(near fuel tank) canister vent solenoid
(not used)
(right side of engine) knock sensor
240 ohms
5v ref volt
A/t
Brake on/off
Brake on/off switch
C120
C242
Cam pos in
Camshaft position sensor (left front of engine)
Camshaft position sensor shield
Canister vent
Ccp/dtr
Digital transmission range sensor (dtr sensor-a/t) (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 pump ctrl
Fuel tank press
Fuse 15a
G123 (rear of engine compt)
G200 (lower left kick panel)
Heater ctrl
Hot at all times
Iac sol
Ign coil 3
Junction box fuse/relay panel (under left side of dash)
Kap b(+)
Knock sensor
Left front heated oxygen sensor (ho2s 21) (on engine exhaust pipe)
Left rear heated oxygen sensor (ho2s 22) (on engine exhaust pipe)
Lf ho2s
Lf ho2s sig (21)
Lr ho2s
Lr ho2s sig (22)
M/t
Maf sens in
Mass air flow sensor (right side of engine compt, in air cleaner assembly)
Nca
Not used
Oss (+) (a/t)
Powertrain control module (right side of engine compt)
Pwr gnd
Red
Red/pnk
Rf ho2s
Rf ho2s sig (11)
Right front heated oxygen sensor (ho2s 11) (on engine exhaust pipe)
Right rear heated oxygen sensor (ho2s 12) (on engine exhaust pipe)
Rr ho2s
S100
S101
S107
S143 (engine control sensor harn, near breakout to vapor management valve)
S221
S231
Sig rtn
Starting/charging system
Tan
Tan/red
Tcc sol
Tp sens in
Trans ctrl ind
Vapor valve
Vpwr
Vss (+)
Vss input

4.6L

4.6L, Engine Performance Wiring Diagrams (1 of 4) for Ford Pickup F250 1998

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List of elements for 4.6L, Engine Performance Wiring Diagrams (1 of 4) for Ford Pickup F250 1998:

(engine control harn, near breakout to pcm)
(engine control sensor harn, in breakout to 42-pin conn, right rear of eng compt)
(engine control sensor harn, near breakout to vapor management valve)
(fuel charge harn, near breakout of 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 radiator support) g108
(lower left kick panel) g200
(rear of engine compt) g123
* expedition
** f150/f250 light duty
4x4 low ind sw
820 ohms
Accel sig
Accs
Air conditioning system
Body computer system
C243
Case gnd
Ckp(+)
Ckp(-)
Data link (+)
Data link (-)
Data link connector (partial) (center of dash)
Digital transmission range sensor (dtr sensor) (left side of transmission)
Ect
Ect gauge
Electronic suspension system
Engine fuse module (left side of engine compt)
Evr ctrl
Feps (eprom)
Fp sending unit
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 communicator control (right side of engine)
Junction box fuse/relay panel (under left side of dash)
Maf
Mil
Nca
Not used
O/d off
Octane adjust
Otc module
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Pwr gnd
R n
Radio noise capacitor 1
Radio noise capacitor 2
Red
Rr ho2s sig (12)
S100
S106
S107
S116 (engine control sensor harn, near breakout to engine fuse module)
S117
S127
S128
S130
S225
S277
Shift sol 1 (a/t)
Shift sol 2 (a/t)
Spark plugs
Tach out
Tcs (a/t)
Tft
To dtr sensor (diagram 4 of 4)
Tr1
Tr2a
Tr4a
Transmission control indicator lamp
Transmission control switch (a/t)
Vss (-)

4.6L, Engine Performance Wiring Diagrams (2 of 4) for Ford Pickup F250 1998

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List of elements for 4.6L, Engine Performance Wiring Diagrams (2 of 4) for Ford Pickup F250 1998:

(engine control sensor harn, near breakout to 35-pin conn in left rear of engine compt)
(engine control sensor harn, near breakout to 38-pin conn in right rear of engine compt)
(fuel charge harn, near breakout to starter motor relay) s137
(lower left kick panel)
(speedometer/ odometer) vehicle speed input
(under left side of dash) junction box fuse/relay panel
C236
C237
C243
C267
Crankshaft position sensor (lower front of engine)
Crankshaft position sensor shield
Differential pressure feedback egr sensor (left side of engine)
Electronic suspension system
Engine coolant temperature gauge
Engine coolant temperature sender (left front corner of engine)
Engine coolant temperature sensor (front of engine)
Fuel pump relay
Fuel reset switch indicator
Fuel tank pressure sensor (at fuel tank)
Fuse 20a
G123 (rear of engine compt)
G200
Generic electronic module/ central timer module
Hot at all times
Instrument cluster
Intake air temperature sensor (on intake manifold)
Malfunction indicator
Nca
Octane adjust shorting bar (right rear corner of engine compt)
Power distribution box (left side of engine compt)
Red
Red/pnk
S101 (engine control harn, in breakout to pcm)
S123 (engine control harn, near breakout to starter motor relay)
S135 (fuel charge harn, near breakout to radio noise capacitor)
S136 (fuel charge harn, near breakout to fuel injector 3)
S138
S139
S207
Tachometer
Throttle position sensor (attached to throttle body)
Vss input

4.6L, Engine Performance Wiring Diagrams (3 of 4) for Ford Pickup F250 1998

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List of elements for 4.6L, Engine Performance Wiring Diagrams (3 of 4) for Ford Pickup F250 1998:

(backup lamp sw to rear lamp feed harn, at breakout to 38-pin conn in right rear of engine compt)
(fuel charge harn, near breakout to 42-pin conn in right rear of engine compt)
(fuel tank) fuel pump module
(right side of dash) inertia fuel shut-off switch
4r70w transmission
Egr vacuum regulator solenoid (left side of engine)
Electronic pressure control solenoid
Evap canister purge
Fuel injectors
G108 (left front radiator support)
Idle air control valve (on left side of intake manifold)
Instrument cluster system
Nca
Output shaft speed sensor (left side of transmission)
Red
Red/pnk
S129
S131 (fuel charge harn, near breakout to radio noise capacitor)
S140
S141 (backup lamp sw to rear lamp feed harn, in breakout to 38-pin conn in right rear engine compt)
S400
Shift solenoids
Ss1
Ss2
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 Pickup F250 1998

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List of elements for 4.6L, Engine Performance Wiring Diagrams (4 of 4) for Ford Pickup F250 1998:

(engine ctrl sensor harn, near breakout c165, windshield wiper motor) s143
(front of left head) cylinder head temperature sensor
(left rear of engine compt) speed control servo/amplifier assembly
(left rear of transmission) vehicle speed sensor
(main harn, near breakout to instrument cluster)
(near fuel tank) canister vent solenoid
(right side of engine) knock sensor
5v ref volt
A/t
Brake on/off
Brake on/off switch
C242
Cam pos in
Camshaft position sensor (left front of engine)
Camshaft position sensor shield
Canister vent
Cyl head temp
Digital transmission range sensor (dtr sensor-a/t) (left side of transmission)
Dpfe sens
Dtr 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 (m/t only) 5a
Fuse 15a
G123 (rear of engine compt)
G123 (rear of engine compt)
G200 (lower left kick panel)
Heated oxygen sensor (ho2s 11) (lower right rear of engine)
Heated oxygen sensor (ho2s 12) (right rear of transmission)
Heated oxygen sensor (ho2s 21) (lower left rear of engine)
Heated oxygen sensor (ho2s 22) (left rear of transmission)
Heater ctrl
Hot at all times
Hot in start, with clutch disengaged
Iac sol
Ign coil 3
Ign coil 4
Junction box fuse/ relay panel (under left side of dash)
Kap b(+)
Knock sensor
Lf ho2s
Lf ho2s sig (21)
Lr ho2s
Lr ho2s sig (22)
M/t
Maf sens in
Mass air flow sensor (right side of engine compt, in air cleaner assembly)
Nca
Oss (+) (a/t)
Powertrain control module (right side of engine compt)
Pwr gnd
Red
Red/pnk
Rf ho2s
Rf ho2s sig (11)
Rr ho2s
S100
S101
S107
S231
Sig rtn
Tan
Tan/red
Tcc sol
Tp sens in
Trans ctrl ind
Vapor valve
Vpwr
Vss (+)
Vss input

5.4L

5.4L CNG, Engine Performance Wiring Diagrams (1 of 5) for Ford Pickup F250 1998

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List of elements for 5.4L CNG, Engine Performance Wiring Diagrams (1 of 5) for Ford Pickup F250 1998:

(center of dash) (partial) data link connector
(left radiator support) g108
(lower left kick panel) g200
A/c on sig
Air conditioning system
Case gnd
Ckp (+)
Ckp (-)
Data link (+)
Data link (-)
Digital transmission range sensor (dtr sensor) (left side of transmission)
Dlc
Dtr-tr1
Dtr-tr2
Dtr-tr4
E4od ccs
E4od ss1
E4od ss2
Ect
Fuel pump mon
Fuse 30a
Fuse 5a
G123 (rear of engine compt)
G200 (lower left kick panel)
Hot at all times
Hot in run or start
Iat
Ign coil 1
Ign coil 3
Ign coil 5
Ign coil 6
Imcc
Junction box fuse/relay panel (under left side of dash)
Maf
Mil
Nca
Ngv timer (left rear of engine compt)
Not used
O/d off
Ohms
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Pwr gnd
R n
Red
S100
S106
S116
S156
S157 (eng ctrl sensor harn, near breakout to vapor management valve)
S207
S225
Starting/ charging system
Tach
Tan/red
Tcil ind
Tcs
Tft
To dtr sensor (diagram 4 of 4)
Transmission control indicator lamp
Transmission control switch
Vss (-)

5.4L CNG, Engine Performance Wiring Diagrams (2 of 5) for Ford Pickup F250 1998

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List of elements for 5.4L CNG, Engine Performance Wiring Diagrams (2 of 5) for Ford Pickup F250 1998:

(engine control sensor harn, near breakout to 35-pin conn in left rear of engine compt)
(engine ctrl harn, near breakout to starter motor relay) s123
(fuel charge harn, near breakout to radio noise cap)
(fuel tank harn, near breakout to tank valve 2) s302
(left front corner of engine) engine coolant temperature sender
(right side of dash) inertia fuel shut-off switch
(speedo/ odometer) vehicle speed input
(under left side of dash) junction box fuse/relay panel
C236
C237
C243
C267
Crankshaft position sensor (lower front of engine)
Crankshaft position sensor shield
Electronic suspension system
Engine coolant temp gauge
Engine fuse module (left side of engine compt)
Forward in-bed fuel tank valve (at fuel tanks)
Fuel gauge
Fuel rail cutoff valve (on fuel rail)
Fuel reset switch indicator
Fuse 5a
G105 (rear of right fender apron)
G108 (left radiator support)
G123 (rear of engine compt)
G200 (lower left kick panel)
Generic electronic module/ central timer module
Injection pressure sensor (on top of engine)
Instrument cluster
Intake air temperature sensor (on intake manifold)
Midship fuel tank valve (at fuel tanks)
Mil
Nca
Rear in-bed fuel tank valve (at fuel tanks)
Red
Red/pnk
S101
S103
S135
S136 (fuel charge harn, near breakout to fuel injector 3)
S139
S159 (engine ctrl sensor harn, left side of eng compt)
S199
S207
S301
Tach
Throttle position sensor (attached to throttle body)
Vss input

5.4L CNG, Engine Performance Wiring Diagrams (3 of 5) for Ford Pickup F250 1998

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List of elements for 5.4L CNG, Engine Performance Wiring Diagrams (3 of 5) for Ford Pickup F250 1998:

Coast clutch solenoid
E4od transmission
Electronic pressure control solenoid
Fuel pump relay
Fuse 20a
Hot at all times
Ignition coils
Nca
Power distribution box (left side of engine compt)
Radio noise capacitor
Red
Red red
Red/pnk
S117 (fuel charge harn, near breakout to 42-pin inline conn in right rear of engine compt)
S161 (fuel charge harn, in breakout to injector 3)
S162 (fuel charge harn, in breakout to injector 7)
Shift solenoid
Torque converter clutch solenoid
Transmission fluid temperature sensor

5.4L CNG, Engine Performance Wiring Diagrams (4 of 5) for Ford Pickup F250 1998

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List of elements for 5.4L CNG, Engine Performance Wiring Diagrams (4 of 5) for Ford Pickup F250 1998:

(backup lamp harn, at breakout to 38-pin conn in right rear of engine compt)
(eng ctrl sensor harn, left side of eng compt)
(engine control sensor harn, near breakout to vapor management valve)
Data (+)
Data (-)
Fuel gauge
Fuel injectors
Fuel press
Fuel temp
Ground
Ignition
Inj #1 input
Inj #1 out
Inj #2 input
Inj #2 out
Inj #3 input
Inj #3 out
Inj #4 input
Inj #4 out
Inj #5 input
Inj #5 out
Inj #6 input
Inj #6 out
Inj #7 input
Inj #7 out
Inj #8 input
Inj #8 out
Intake manifold communicator control (right side of engine)
Natural gas vehicle (ngv) module (front of engine compartment)
Ngv fuel tank pressure sensor (at fuel tank)
Ngv fuel tank temperature sensor (at fuel tank)
Power
Red
Red/pnk
S127
S129 (fuel charge harn, near breakout to 42-pin conn in right rear of engine compt)
S131 (fuel charge harn, near breakout to radio noise capacitor)
S140
S158
S303 (fuel tank harn, near fuel tank)
Sig return
Tan
Tan/ red
Tan/red
Timer

5.4L CNG, Engine Performance Wiring Diagrams (5 of 5) for Ford Pickup F250 1998

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List of elements for 5.4L CNG, Engine Performance Wiring Diagrams (5 of 5) for Ford Pickup F250 1998:

(backup lamp harn, in breakout to 38-pin conn in right rear eng compt)
(eng control harn, near breakout to pcm)
(engine control sensor harn, near breakout to vapor management valve)
(engine control sensor harn, right rear of engine compt)
(front of left head) cylinder head temperature sensor
(left rear of engine compt) speed control servo/amplifier assembly
(left rear of transmission) vehicle speed sensor
(main harn, near breakout to 16-pin inline conn behind left side of dash)
270 ohms
5v ref
Brake on/off
Brake on/off switch
C242
Camshaft position sensor (left front of engine)
Camshaft position sensor shield
Cmp sensor
Cyl head temp
Digital transmission range sensor (dtr sensor-a/t) (left side of transmission)
Dtr-tr3a
Eft sensor
Engine fuel temperature sensor (on top of engine)
Epc sol
From dtr sensor (diagram 1 of 4)
Fuel ctrl
Fuse 15a
G123 (rear of engine compt)
G123 (rear of engine compt) right
G200 (lower left kick panel)
Ho2s (#11)
Ho2s (#21)
Ho2s sig (#11)
Ho2s sig (#21)
Hot at all times
Idle air control valve (on left side of intake manifold)
Idle air ctrl
Ign coil 2
Ign coil 4
Ign coil 7
Ign coil 8
Inj pressure
Junction box fuse/relay panel (under left side of dash)
Kap b(+)
Left front heated oxygen sensor (ho2s 21) (on engine exhaust pipe)
Maf sens in
Mass air flow sensor (right side of engine compt, in air cleaner assembly)
Nca
Ngv module
Not used
Powertrain control module (right side of engine compt)
Pwr gnd
Red
Red/pnk
Right front heated oxygen sensor (ho2s 11) (on engine exhaust pipe)
S100
S101
S107
S128
S138
S141
S143
S199
S231
Sig rtn
Tcc sol
Tp sens in
Vpwr
Vss (+)
Vss input

5.4L, Engine Performance Wiring Diagrams (1 of 4) for Ford Pickup F250 1998

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List of elements for 5.4L, Engine Performance Wiring Diagrams (1 of 4) for Ford Pickup F250 1998:

(engine control harn, near breakout to pcm)
(engine control sensor harn, near breakout to vapor management valve)
(expedition)
(fuel charge harn, in breakout to fuel injector 3)
(fuel charge harn, in breakout to fuel injector 7)
(fuel charge harn, near breakout to 42-pin inline conn in right rear of engine compt)
(left radiator support) g108
(lower left cowl panel) g201
(overhead console)
(rear of engine compt)
4x4 low ind sw
A/c on sig
Air conditioning system
Air suspn vss
Body computer system
C243
Case gnd
Ckp (+)
Ckp (-)
Data link (+)
Data link (-)
Data link connector (partial) (center of dash)
Digital transmission range sensor (dtr sensor) (left side of transmission)
Dtr-tr1
Dtr-tr2
Dtr-tr4
E4od ccs
E4od ss1
E4od ss2
Ect
Electronic suspension system
Engine fuse module (left side of engine compt)
Evr sol
Feps (eprom)
Fp sending unit
Fuel pump mon
Fuse 30a
Fuse 5a
G123
Hot at all times
Hot in run or start
Iat
Ign coil 1
Ign coil 3
Ign coil 5
Ign coil 6
Ignition coils
Instrument cluster system
Intake tune vlv
Junction box fuse/relay panel (under left side of dash)
Maf
Mil
Nca
O/d off
Octane adjust
Od off ind
Ohms
Otc module
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Pwr gnd
R n
Radio noise capacitor
Red
Rr ho2s (12)
S100
S106
S107
S116
S117
S127
S128
S161
S162
S225
Tach
Tcs
Tft
To dtr sensor (diagram 4 of 4)
Transmission control indicator lamp
Transmission control switch
Vss (-)

5.4L, Engine Performance Wiring Diagrams (2 of 4) for Ford Pickup F250 1998

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List of elements for 5.4L, Engine Performance Wiring Diagrams (2 of 4) for Ford Pickup F250 1998:

(engine control sensor harn, near breakout to 35-pin conn in left rear of engine compt) s139
(engine control sensor harn, near breakout to 38-pin conn in right rear of engine compt)
(lower left kick panel)
(speedometer/ odometer) vehicle speed input
(under left side of dash) junction box fuse/relay panel
C236
C237
C243
C267
Crankshaft position sensor (lower front of engine)
Crankshaft position sensor shield
Differential pressure feedback egr sensor (left side of engine)
Electronic suspension system
Engine coolant temperature gauge
Engine coolant temperature sender (left front corner of engine)
Fuel pump relay
Fuel reset switch indicator
Fuel tank pressure sensor (at fuel tank)
Fuse 20a
G123 (rear of engine compt)
G200
Generic electronic module/ central timer module
Hot at all times
Instrument cluster
Intake air temperature sensor (on intake manifold)
Knock sensor (top right rear side of engine)
Knock sensor shield
Malfunction indicator
Nca
Octane adjust shorting bar (right rear corner of engine compt)
Power distribution box (left side of engine compt)
Red
Red/pnk
S101 nca
S123 (engine control harn, near breakout to starter motor relay)
S135 (fuel charge harn, near breakout to radio noise capacitor)
S136 (fuel charge harn, near breakout to fuel injector 3)
S137 (fuel charge harn, near breakout to starter motor relay)
S138
S199 nca
S207
Tachometer
Throttle position sensor (attached to throttle body)
Vss input

5.4L, Engine Performance Wiring Diagrams (3 of 4) for Ford Pickup F250 1998

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List of elements for 5.4L, Engine Performance Wiring Diagrams (3 of 4) for Ford Pickup F250 1998:

(backup lamp sw to rear lamp feed harn, at breakout to 38-pin conn in right rear of engine compt)
(backup lamp sw to rear lamp feed harn, in breakout to 38-pin conn in right rear engine compt)
(fuel charge harn, near breakout to 42-pin conn in right rear of engine compt)
(fuel tank) fuel pump module
(right side of dash) inertia fuel shut-off switch
Coast clutch solenoid
E4od transmission
Egr vacuum regulator solenoid (left side of engine)
Electronic pressure control solenoid
Fuel injectors
G108 (left front radiator support)
Idle air control valve (on left side of intake manifold)
Instrument cluster system
Intake manifold tuning valve (on left side of engine)
Nca
Red
Red/pnk
S129
S131 (fuel charge harn, near breakout to radio noise capacitor)
S140
S141
S400
Shift solenoid
Tan
Tan/ red
Tan/red
Torque converter clutch solenoid
Transmission fluid temperature sensor
Vapor management valve (vmv) (left rear corner of engine compt)

5.4L, Engine Performance Wiring Diagrams (4 of 4) for Ford Pickup F250 1998

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List of elements for 5.4L, Engine Performance Wiring Diagrams (4 of 4) for Ford Pickup F250 1998:

(engine control sensor harn, near breakout to c165, windshield wiper motor)
(front of left head) cylinder head temperature sensor
(left rear of engine compt) speed control servo/amplifier assembly
(left rear of transmission) vehicle speed sensor
(main harn, near breakout to 16-pin inline conn behind left side of dash)
(near fuel tank) canister vent solenoid
270 ohms
5v ref
Brake on/off
Brake on/off switch
C242
Camshaft position sensor (left front of engine)
Camshaft position sensor shield
Canister vent
Cmp sensor
Cyl head temp
Digital transmission range sensor (dtr sensor-a/t) (left side of transmission)
Dpfe sens
Dtr-tr3a
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 15a
G123 (rear of engine compt)
G200 (lower left kick panel)
Heater ctrl
Hot at all times
Idle air ctrl
Ign coil 2
Ign coil 4
Ign coil 7
Ign coil 8
Junction box fuse/relay panel (under left side of dash)
Kap b(+)
Knock sensor
Left front heated oxygen sensor (ho2s 21) (lower left rear of engine)
Left rear heated oxygen sensor (ho2s 22) (left rear of transmission)
Lf ho2s
Lf ho2s sig (21)
Lr ho2s
Maf sens in
Mass air flow sensor (right side of engine compt, in air cleaner assembly)
Nca
Powertrain control module (right side of engine compt)
Pwr gnd
Red
Red/pnk
Rf ho2s
Rf ho2s sig (11)
Rf ho2s sig (22)
Right front heated oxygen sensor (ho2s 11) (lower right rear of engine)
Right rear heated oxygen sensor (ho2s 12) (right rear of transmission)
Rr ho2s
S100
S101
S107
S143
S199
S231
Sig rtn
Tan
Tan/red
Tcc sol
Tp sens in
Vapor valve
Vpwr
Vss (+)
Vss input

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for Ford Pickup F250 1998

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List of elements for Backup Lamps Wiring Diagram for Ford Pickup F250 1998:

A/t
Anti-theft system (rap module)
Backup
Backup lamp switch (on left side of transmission)
C242
Digital transmission range (dtr) sensor (left side of transmission)
Exterior lamps (trailer tow circuit)
Fuse 5 15a
G108 (left front radiator support)
Hot in run
Junction box fuse/relay panel (under left side of dash)
Lamp
Left
M/t
Right backup lamp
S112
S130 (eng control sens harn, right rear of engine compt)
S401
S405 (rear lamp conn harn, in left stop/park/turn lamp breakout)

Exterior Lamps Wiring Diagram for Ford Pickup F250 1998

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List of elements for Exterior Lamps Wiring Diagram for Ford Pickup F250 1998:

(lower right kick panel) g203
(main harn, behind left side of dash) s246
(main harn, behind left side of dash) s247
(rear lamp conn harn, left rear of vehicle) s403
Autolamp module (behind center of dash)
Blower/ flasher relay block (behind center of dash)
Brake pedal position switch (under left side of dash)
Breakout)
C216
C237
C242
C243
Center high mount stop lamp
Eng compt)
Exterior lights system (trailer tow circuit)
Flasher relay
Fuse 10a
Fuse 15a
Fuse 5a
G108 (left front radiator support)
G109 (right front
G203 (lower right kick panel)
Hazard
Head
Hot at all times
Hot in run
Instrument cluster
Junction box fuse/relay panel (under left side of dash)
Left
Left front park/ turn lamp
Left power/ signal mirror
Left stop/ park/ turn lamp
Left tail/ side marker lamp
Left turn indicator
License lamp
Main light switch
Multi-function switch
Normal
Off
Park
Park lamp relay (w/ auto lamps)
Power distribution
Power distribution box (left side of engine compt)
Radiator support)
Right
Right front park/ turn lamp
Right power/ signal mirror
Right stop/ park/ turn lamp
Right tail/ side marker lamp
Right turn indicator
Rpo relay box (behind right side of dash)
S104
S148
S202
S219
S221 (rabs only)
S228
S245 (main harn, near breakout to rpo relay box)
S304
S401
S501
S600
W/ flare side only
W/ rear bumper only

Trailer Tow Wiring Diagram for Ford Pickup F250 1998

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List of elements for Trailer Tow Wiring Diagram for Ford Pickup F250 1998:

(engine cntrl sensor harn, left side of eng compt)
(engine cntrl sensor harn, left side of eng compt) s148
(engine cntrl sensor harn, left side of eng compt) s149
(left front radiator support) g108
Brake pedal position switch (under left side of dash)
C242
Engine fuse module
Exterior lights (back-up lamps circuit)
Exterior lights (exterior lights circuit)
Fuse 1 20a
Fuse 10a
Fuse 15a
Fuse 16 40a
Fuse 20a
Fuse 28 30a
G203 (lower right kick panel)
G416 (left rear of frame)
Head
Hot at all times
Hot in run
Instrument cluster breakout)
Junction box fuse/relay panel (under left side of dash)
Left turn signal output
Main light switch
Multi- function switch (in engine compt, near power distribution box)
Off
Park
Power distribution box
Power distribution center (left side of engine compt)
Red
Right turn signal output
S105
S108
S110
S111
S115
S201
S221 (w/ rabs only)
S224 (main harn, in main light switch breakout)
S228
Trailer electronic brake control
Trailer tow backup lamp relay
Trailer tow battery charge relay
Trailer tow connector
Trailer tow connector (trailer backup lamps)
Trailer tow connector (trailer battery)
Trailer tow connector (trailer left turn lamps)
Trailer tow connector (trailer right turn lamps)
Trailer tow connector (trailer running lamps)
Trailer tow left turn relay
Trailer tow right turn relay
Trailer tow running lamp relay

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Ford Pickup F250 1998

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List of elements for Ground Distribution Wiring Diagram (1 of 3) for Ford Pickup F250 1998:

(main harn, near breakout to rpo relay box)
(premium sound)
(w/ rabs only) ignition switch
4 wheel drive mode switch
48 (bare)
A/c clutch diode
A/c compressor clutch solenoid
Ashtray illumination
Battery
Blend door actuator
Blower motor resistor
Blower relay
Blower/ flasher relay block
C174 48 (bare)
Camshaft position sensor
Camshaft position sensor shield
Central timer module diagnostic connector
Clock spring assembly
Crankshaft position sensor shield
Datalink connector
Digital transmission range sensor
Engine compartment lamp
Flasher relay
Fuel rail cut-off valve
Function selector switch
G105 (rear of right fender apron)
G123 (rear of engine compartment)
G133 (on engine)
G203 (lower right kick panel)
Glove compartment lamp
Instrument cluster
Intake manifold runner control motor 1 (4.2l)
Intake manifold runner control motor 2 (4.2l)
Knock position sensor shield (5.4l)
Left door ajar switch
Main light switch
Mass air flow sensor
Ngv timer
Passive de-activation module
Powertrain control module
Radio
Rear air suspension module
Right door ajar switch
S100 (engine compt harn, in breakout to pcm)
S101 (engine compt harn, in breakout to pcm)
S102 (engine compt harn, near breakout to starter motor)
S103 (engine compt harn, right rear of engine compt)
S199 (engine compt harn, right rear of engine compt)
S200 (main harn, behind right side of dash)
S201 (main harn, near breakout to evo module)
S202 (main harn, in breakout to blower/flasher relay block)
S204 (main harn, near breakout to instrument cluster)
Shift lock actuator
Speed control/ servo amplifier assembly
Trailer adapter (electronic brake control)
Transfer case shift relay
Windshield wiper motor

Ground Distribution Wiring Diagram (2 of 3) for Ford Pickup F250 1998

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List of elements for Ground Distribution Wiring Diagram (2 of 3) for Ford Pickup F250 1998:

(rear lamp harn, near breakout to fuel pump assembly) s400
4 wheel anti-lock brake system module
87a
All lock relay
All unlock relay
Auxiliary power socket
Brake fluid level indicator switch
Center high mount stop lamp
Cigar lighter
Forward in-bed fuel tank valve
Fuel pump assembly
G108 (left front radiator support)
G203 (lower right kick panel)
Junction box fuse/relay panel
Left backup lamp
Left cargo lamp
Left door anti-theft switch
Left front door ajar switch
Left front door courtesy lamp
Left front power window switch
Left headlamp
Left power door lock switch (w/ anti-theft)
Left power door lock switch (w/o anti-theft)
Left power/ signal mirror
Left stop/ park/ turn lamp
Left tail/side marker lamp (flare side)
License lamp
Midship fuel tank valve
Natural gas vehicle only
One touch down relay
Pcm power relay
Power distribution box
Power distribution relay box
Power mirror switch
Power seat control switch
Rear air suspension compressor relay
Rear in-bed fuel tank valve
Rear wheel anti-lock brake system proportioning valve
Red brake lamp warning relay
Right backup lamp
Right cargo lamp
Right door anti-theft switch
Right front door ajar switch
Right front door courtesy lamp
Right front power door lock switch
Right stop/ park/ turn lamp
Right tail/side marker lamp (flare side)
S105 (engine compt harn, in breakout to pdc)
S106 (engine compt harn, near breakout to ground g108)
S205 (main harn, near breakout to evo module)
S206 (seatbelt harn, in breakout to right rear speaker)
S301 (fuel tank sender harn, near breakout to fuel tank solenoid valve 2)
S401 (rear lamp harn, near breakout to backup lamps)
S402 (license lamp harness)
S500 (body harn, near breakout to left power mirror switch)
S501 (body harn, near breakout to left power mirror switch)
S600 (body harn, near breakout to right door courtesy lamp)
S911 (high mount stoplamp harness)
Seatbelt warning switch
Trailer tow backup lamp relay
Trailer tow battery charge relay
Trailer tow left turn relay
Trailer tow right turn relay
Trailer tow running lamp relay
W/ cargo lamp
W/o cargo lamp

Ground Distribution Wiring Diagram (3 of 3) for Ford Pickup F250 1998

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List of elements for Ground Distribution Wiring Diagram (3 of 3) for Ford Pickup F250 1998:

Airbag diagnostic monitor
C242
C277
Cd changer
Engine coolant temperature sensor
Fuel pump assembly
G109 (late prod) (right front radiator support)
G109 (right front radiator support)
G200 (lower left kick panel)
G202 (upper left kick panel)
G416 (left rear of frame)
Generic electronic module
Ground g202)
Ignition cylinder tamper switch
Instrument cluster
Junction box fuse/relay panel
Left fog lamp
Left front park/turn lamp
Ngv timer
Powertrain control module
Radio (am/fm w/ cassette)
Radio (premium sound)
Radio amplifier
Rear air suspension compressor motor and vent solenoid
Rear air suspension compressor motor and vent solenoid (late production)
Rear air suspension module
Rear wheel anti-lock brake module
Remote anti-theft personality module
Right fog lamp
Right front park/turn lamp
Right headlamp
S104 (engine compt harn, near breakout to ground g109)
S107 (engine compt harn, near starter motor relay)
Trailer/ tow connector
Vehicle speed sensor
Washer pump assembly

HEADLIGHTS

Autolamps/Fog Lamps Wiring Diagram, with DRL for Ford Pickup F250 1998

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List of elements for Autolamps/Fog Lamps Wiring Diagram, with DRL for Ford Pickup F250 1998:

(eng control sensor harn, near breakout to left headlamp)
(main harn, in main light switch breakout)
(main harn, in pass air bag breakout)
Auto- lamp on
Auto- lamp on ind
Autolamp module (behind center of dash)
Battery
Brake ind out
C236
C237
C242
C243
C244
C245
C246
C259
Ctrl sw output
Daytime running lamps (drl) module (on left front of engine compartment)
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
Headlamp)
Headlamps
Headlmps
Hi-beam indicator
Hot at all times
Hot in run
Hot in start or run
Ignition
Ind feed
Instrument cluster
Instrument cluster system (brake ind)
Junction box fuse/relay panel
Left fog lamp
Left headlamp
Main light
Main light switch
Multi- function switch
Off
Park
Park brake input
Park brake switch (in right side of parking brake lever)
Park lamp relay
Pass
Power distribution box
Relay output
Rheostat output
Right fog lamp
Right headlamp
Rpo relay box (behind right side of dash)
S104
S106
S109
S112
S114
S147 (eng control sensor harn, in left fog lamp breakout)
S204
S211
S212
S219
S224
S225
S245
Switch

Autolamps/Fog Lamps Wiring Diagram, without DRL for Ford Pickup F250 1998

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List of elements for Autolamps/Fog Lamps Wiring Diagram, without DRL for Ford Pickup F250 1998:

(eng control sensor harn, near breakout to left headlamp)
(main harn, in main light switch breakout)
(main harn, in pass air bag breakout)
Auto- lamp on
Auto- lamp on ind
Autolamp module (behind center of dash)
Battery
C236
C237
C242
C243
C244
C245
C246
C259
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
Power distribution box
Relay output
Right fog lamp
Right headlamp
Rpo relay box (behind right side of dash)
S104
S106
S109
S114
S147 (eng control sensor harn, in left fog lamp breakout)
S204
S211
S212
S219
S224
S225
S245
Switch

Headlamps/Fog Lamps Wiring Diagram, with DRL for Ford Pickup F250 1998

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List of elements for Headlamps/Fog Lamps Wiring Diagram, with DRL for Ford Pickup F250 1998:

(eng control sensor harn, 215 mm from breakout to right headlamp)
(eng control sensor harn, near breakout to left headlamp)
Battery
Brake ind out
C236
C237
C242
C243
C244
C246
C259
Daytime running lamps (drl) module (on left front of engine compartment)
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
Headlamps
Headlmps
Hi-beam indicator
Hot at all times
Hot in run
Ignition
Ind feed
Instrument cluster
Instrument cluster system (brake ind)
Junction box fuse/relay panel
Left fog lamp
Left headlamp
Main light
Main light switch
Multi- function switch
Off
Park
Park brake input
Park brake switch (in right side of parking brake lever)
Pass
Power distribution box
Right fog lamp
Right headlamp
S104
S106
S109
S112
S114
S122
S147 (eng control sensor harn, in left fog lamp breakout)
S204
S212
Switch

Headlamps/Fog Lamps Wiring Diagram, without DRL for Ford Pickup F250 1998

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List of elements for Headlamps/Fog Lamps Wiring Diagram, without DRL for Ford Pickup F250 1998:

(eng control sensor harn, near breakout to left headlamp)
C236
C237
C242
C243
C244
C246
C259
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
Junction box fuse/relay panel
Left fog lamp
Left headlamp
Main light
Main light switch
Multi- function switch
Off
Park
Pass
Power distribution box
Right fog lamp
Right headlamp
S104
S106
S109
S114
S147 (eng control sensor harn, in left fog lamp breakout)
S204
S212
Switch

HORN

Horn Wiring Diagram for Ford Pickup F250 1998

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List of elements for Horn Wiring Diagram for Ford Pickup F250 1998:

87a
C234
C257
Clock- spring assembly
Fuse 5 20a
High pitch horn (right front engine compt)
Horn relay
Horn switches
Hot at all times
In breakout to horns) s145
Low pitch horn (right front engine compt)
Nca
Power distribution box (left side of engine compt)
Remote anti-theft personality (rap) module (behind left side of dash)
Steering assembly
Steering column ground

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Ford Pickup F250 1998

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List of elements for Instrument Cluster Wiring Diagram for Ford Pickup F250 1998:

(behind center of dash) rear air suspension module
(behind left side of dash) generic electronic module (gem)
(behind right side of dash) rear anti-lock brake system module
(conn a)
(conn b)
(conn c)
(lower left kick panel)
(main harn, near airbag diagnostic monitor)
(on right side of engine compt) powertrain control module
(under right side of dash) rear air suspension datalink
4 wheel anti-lock
4 wheel anti-lock brake system module (on left side of engine compartment)
4x4 high ind
4x4 low ind
A11
A12
Air suspension ind
Airbag diagnostic monitor (behind right side of dash)
Airbag ind
Anti- lock brakes system
Anti-lock ind
Anti-theft ind
B10
B11
B12
B14
B15
B16
Brake ind
Brake warning diode 1 (power dist- ribution box)
C10
C11
C12
C174
C236
C237
C238
C239
C241
C242
C243
Charge ind
Coolant temperature
Daytime running lamps jumper (in left front of engine compt)
Daytime running lamps module (in left front of engine compt)
Door ajar ind
Ect
Engine controls system
Engine coolant temperature sender (on top front of engine)
Engine oil pressure
Engine oil pressure switch (on left front of engine)
Exterior lights system
Fuel
Fuel gauge
Fuel pump assembly (at fuel tank)
Fuel reset ind
Fuse 10a
Fuse 5a
G200 (lower left kick panel)
G200 g108 (left front radiator support)
G203 (lower right kick panel)
Generic electronic module
Headlights system
Hi beam ind
Hot at all times
Hot in run or start
Illumination
Inertia fuel shutoff (under right side of dash)
Instrument cluster
Interior lights system
Junction box fuse/relay panel (under left side of dash)
Left turn ind
Low fuel ind
Low oil/ high coolant ind
Main harn, near instr cluster)
Malfunction indicator
Mil
Nca
Park brake switch (on park brake lever)
Rear wheel anti-lock
Remote anti-theft personality module (behind left side of dash)
Right turn ind
S107
S123 (engine compt harn, near starter mtr relay)
S124 (left side of engine compt)
S151 (engine compt harn, near breakout to washer motor)
S201
S204
S207
S208
S225
S232
S289
S294
S400
Seatbelt ind
Solid state
Speed control servo/ amplifier (in left side of engine compt)
Speedo
Speedometer/ odometer
Starting/ charging
Tach
Tachometer
Vehicle speed sensor (on left rear of trans- mission)
Voltmeter
W/ all wheel abs
W/ drl
W/ rear wheel abs
W/o drl

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram for Ford Pickup F250 1998

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List of elements for Courtesy Lamps Wiring Diagram for Ford Pickup F250 1998:

g105 (rear of right fender apron)
s240 (main harn, near ashtray illum breakout)
(body main harn, behind right side of dash) s239
Battery saver input
Battery saver relay
C239
C242
C243
C245
C246
C267
Dome lamp
Dome lamp switch
Dome/ map lamp
Door ajar input
Engine compartment lamp
Fuse 15a
G203 (lower right kick panel)
Generic electronic module (gem)/ central timer module (ctm)
Glove compartment lamp
Hot at all times
Interior lamp relay
Interior lamp relay input
Junction box fuse/ relay panel
Left cargo lamp
Left door ajar switch
Left door courtesy lamp
Main light switch
Map lamps
Map lamps with xl & xlt only)
Off
Right cargo lamp
Right door ajar switch
Right door courtesy lamp
S102
S200
S201
S203
S204
S206
S300 (right seat belt retractor switch harn, in dome lamp breakout)
S501
S911
W/ cargo lamps

Instrument Illumination Wiring Diagram for Ford Pickup F250 1998

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List of elements for Instrument Illumination Wiring Diagram for Ford Pickup F250 1998:

(main harn, behind left side of dash) s242
(premium sound)
(standard)
4wheel drive mode switch
Ashtray illumination
C219
C230
C236
C237
C242
C245
C246
C255
C262
C508
C510
C608
C609
Clock- spring assembly
Dimmer module
Function selector switch
Fuse 15a
Fuse 5a
G203 (lower right kick panel)
Head
Hot at all times
Instrument cluster (6 bulbs)
Junction box fuse/relay panel
Left power door lock switch
Left power window switch
Main light switch
Nca
Off
Park
Power distribution box
Radio
Right power door lock switch
Right power window switch
S201
S202
S203
S204
S211
S224 (main harn, near main light switch breakout) c243
S243 (body main harn, near left door grommet)
S500
S502
Steering assembly
Trailer electronic brake control

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Ford Pickup F250 1998

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List of elements for Power Distribution Wiring Diagram (1 of 4) for Ford Pickup F250 1998:

(body harn, near breakout to rap module) s216
(engine compt harn, near breakout to speed control servo) s152
(main harn, in breakout to engine fuse module) s110
(main harn, near breakout to main light switch) s212
(rabs) (4wabs)
(radio harn, harn breakout to radio) s210
4 wheel abs
4 wheel anti-lock brake system module
Air bag diagnostic monitor
All lock relay
All unlock relay
Auxiliary a/c relay
Auxiliary power socket
Battery
C142
C147
C209
C277
Cd changer
Daytime running lamps module
Driver's unlock relay
Engine fuse module (near pdc)
Fog lamp relay
From a fuse 3 (diagram 1 of 4)
Fuse 10a
Fuse 15a
Fuse 15a (late prod)
Fuse 20a
Fuse 20a 60a
Fuse 25a
Fuse 30a
Fuse 40a
Fuse 50a
Generator
Headlamp relay
Horn relay
Ignition switch
Inline mini fuse 20a (near generator)
Left power door lock switch
Left rear air spring solenoid
Main light switch
Mega fuse 175a (generator) (right rear of engine compartment)
Mega fuse 175a (pdb) (right rear of engine compartment)
Multi- function switch
Park lamp relay
Power distribution box
Power distribution box (left side of engine compartment)
Power distribution relay box
Premium sound amplifier
Radio (am/fm cassette)
Radio (premium sound)
Radio/ cassette
Rear abs
Rear air suspension compressor motor/ vent solenoid
Rear air suspension compressor relay
Rear air suspension module
Red
Right power door lock switch
Right rear air spring solenoid
Rpo relay box
S108 (engine compt harn, in breakout to pdb)
S109 (engine compt harn left side of engine compt)
S216 (body harn, near breakout to rap module)
Starter motor
Starter relay
To fuse 14 (diagram 2 of 4)
To fuse 9 (diagram 1 of 4)
Trailer tow backup lamp relay
Trailer tow battery charge relay
Trailer tow left turn relay
Trailer tow right turn relay
Trailer tow running lamp relay
W/ rap
W/o rap
With auto lamps

Power Distribution Wiring Diagram (2 of 4) for Ford Pickup F250 1998

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List of elements for Power Distribution Wiring Diagram (2 of 4) for Ford Pickup F250 1998:

(engine compt harn, left rear of engine compt) s112
(engine compt harn, near breakout to pdc) s113
(main harn, in breakout to fuse relay panel) s265
(main harn, near breakout to instrument cluster) s222
(main harn, near breakout to instrument cluster) s223
(main harn, near breakout to rwabs module) s217
A/t
Acc
Acc delay relay
Backup lamp switch
Blend door actuator
Blower relay
Blower/ flasher relay box
C142
C174
C222
C242
C243
C256
C267
C277
Daytime running lamps module
Digital trans- mission range sensor
Electric clutch relay
Eng ctrl sensor harn, left side of engine compt) s158
Engine fuse module (near pdc)
From b fuse 16 (diagram 1 of 4)
Fuel pump relay
Function selector switch
Fuse 15a
Fuse 20a
Fuse 20a (rwabs)
Fuse 30a
Fuse 40a
Fuse 50a
Fuse 5a
Generic electronic module
Ignition switch
Junction box fuse/ relay panel
Junction box fuse/ relay panel (under left side of dash)
Lock
M/t
Ngv module
Off
Pcm power relay
Power distribution box
Power distribution box (left side of engine compartment)
Power seat control switch
Powertrain control module
Radio
Rear air suspension module
Rear wheel anti-lock brakes system module
Red
Remote anti-theft personality module
Rpo relay box
Run
S214 (main harn, near steering wheel rotation sensor)
S215 (main harn, in breakout to ignition switch)
Shift lock actuator
Shift on the fly relay
Speed control servo/ amplifier assembly
Start
Starting system
To fuse 1 (diagram 3 of 4)
To fuse 19 (diagram 3 of 4)
To fuse 22 (diagram 4 of 4)
Trailer adapter (electronic brake control)
Transfer case shift module
Washer pump relay
Windshield wiper motor
Wiper hi/lo relay
Wiper run/park relay

Power Distribution Wiring Diagram (3 of 4) for Ford Pickup F250 1998

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List of elements for Power Distribution Wiring Diagram (3 of 4) for Ford Pickup F250 1998:

(engine compt harn, near breakout to g108) s114
(engine harn, in breakout to fuel injector 3) s161
(engine harn, in breakout to fuel injector 7) s162
(engine harn, in breakout to noise capacitor 1) s118
(engine harn, in breakout to noise capacitor 2) s119
(engine harn, right rear of engine compt) s117
(main harn, near breakout to instrument cluster) s225
(main harn, near breakout to transfer case relay) s219
(main harn, right side of dash) s221
(w/ rap) (body harn, near breakout to park brake switch) s220
4.2l
4.6l
5.4l
Airbag diagnostic monitor
Autolamp module
Battery saver relay
Blower/ flasher relay box
Brake pedal position switch
Brake pressure switch
Brake warning resistor assembly
C142
C174
C216
C222
C242
C243
C257
C267
Cigar lighter
Data link connector
Daytime running lamps module
Flasher relay
From fuse 22 (diagram 2 of 4) c
From ignition switch (diagram 2 of 4)
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 25a
Fuse 30a
Fuse 5a
G203 (right kick panel)
Generic electronic module
Headlamp relay
Ignition coil
Ignition coils 1 & 2
Ignition coils 3 & 4
Instrument cluster
Interior lamp relay
Junction box fuse/ relay panel (under left side of dash)
Left headlamp
Multi- function switch
Nca
Not used
Park lamp relay
Pcm power diode
Pcm power relay
Power distribution box
Power mirror switch
Powertrain control module (m/t)
Radio noise capacitor
Rear wheel anti-lock brakes system module
Red
Remote anti- theft personality module (if equipped)
Right headlamp
Rpo relay box
S116 (engine harn, near breakout to engine fuse module)
S117 (engine compt harn, right rear of engine compt)
S205
Starting system
Transmission control switch
W/ drl
W/ rabs
W/o drl

Power Distribution Wiring Diagram (4 of 4) for Ford Pickup F250 1998

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List of elements for Power Distribution Wiring Diagram (4 of 4) for Ford Pickup F250 1998:

(engine compt harn, in breakout to 4wabs module) s121
(engine compt harn, left rear of engine compt) s120
(engine compt harn, near breakout to ambient temp sensor) s122
(main harn, in breakout to fuse/ relay panel) s228
4 wheel anti-lock brake system module
4wabs relay
4x2 center axle disconnect solenoid
4x4 center axle disconnect solenoid
Airbag diagnostic monitor
Blower/ flasher relay box
C142
C146
C243
C243 tan/red
Daytime running lamps module
Electric clutch relay (a/t) shift on the fly relay (m/t)
Exterior lights
Flasher relay
Fog lamp relay
From ignition switch (diagram 2 of 4)
Function selector switch
Fuse 10a
Fuse 5a
Junction box fuse/ relay panel (under left side of dash)
Left headlamp
Main light switch
Multi- function switch
Passive restraints de-activation module
Power distribution box
Right headlamp
Rpo relay box
Tan/red
Trailer tow battery charge relay

POWER DOOR LOCKS

Door Lock Wiring Diagram for Ford Pickup F250 1998

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List of elements for Door Lock Wiring Diagram for Ford Pickup F250 1998:

(body harn near break- out to right power win- dow switch) s601
Fuse 3 15a
G203 (lower right kick panel)
Hot at all times
Interior lights system
Left door lock motor
Left power door lock switch
Power distribution box
Right door lock motor
Right power door lock switch
S216
S500
S600
S602 (body harn near break- out to right power win- dow switch)

Keyless Entry Wiring Diagram for Ford Pickup F250 1998

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List of elements for Keyless Entry Wiring Diagram for Ford Pickup F250 1998:

(body harn, near breakout to remote anti-theft person- ality module) s234
(body harn, near breakout to right power window switch) s601
87a
All lock relay
All unlock relay
C256
C257
Driver's unlock relay
Fuse 3 15a
G203 (lower right kick panel)
Hot at all times
Interior lights system
Left door lock motor
Left power door lock switch
Lock
Lock relay (behind right side of dash)
Power distribution box
Remote anti-theft personality module (behind left side of dash)
Right door lock motor
Right power door lock switch
S216
S235 (body harn, near break- out to remote anti-theft personality module)
S500
S501
S600
S602 (body harn, near breakout to right power window switch)
Unlock

POWER MIRRORS

Power Mirror Wiring Diagram for Ford Pickup F250 1998

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List of elements for Power Mirror Wiring Diagram for Ford Pickup F250 1998:

C242
Direct- ional control switch
Fuse 15a
G203 (lower right kick panel)
Hot at all times
Junction box fuse/relay panel (under left side of dash)
L/r motor
Left power mirror
Left/ right switch
Nca
Power mirror switch
Red
Right power mirror
S220
S501
S503 (body main harness, near break out to left power window motor)
Up/dn motor

POWER SEATS

Power Seat Wiring Diagram for Ford Pickup F250 1998

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List of elements for Power Seat Wiring Diagram for Ford Pickup F250 1998:

Entire seat
Forward/reverse motor
Front height motor
Front of seat
Fuse 18 30a
Fwd
G203 (lower right kick panel)
Hot at all times
Nca
Power distribution box (in left side of eng compt)
Power seat control switch
Power seat motor assembly
Rear height motor
Rear of seat
Rwd
S204

POWER WINDOWS

Power Window Wiring Diagram for Ford Pickup F250 1998

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List of elements for Power Window Wiring Diagram for Ford Pickup F250 1998:

87a
Acc delay relay
Batt saver
Battery saver relay
C242
C243
C267
C509
C510
Down sw input
Fuse 15a
Fuse 30a
Fuse 50a
G203 (lower right kick panel)
Generic electronic module
Ground
Hot at all times
Interior lights system
Junction box fuse/ relay panel (under left side of dash)
Left power window motor
Left power window switch
Left switch
One tch dn hi
One tch dn lo
One touch down
One touch down relay
Otd sw input
Power distribution box (left side of engine compt)
Right power window motor
Right power window switch
Right switch
S205
S248 (body main harn, near breakout to park brake switch)
S500
S502 (body main harn, near breakout to left power window motor)
S600
Shunt (0.015 +/- 0.001 ohm)
Up sw input

RADIO

Base Radio for Ford Pickup F250 1998

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List of elements for Base Radio for Ford Pickup F250 1998:

Antenna
C224
C225
C242
Fuse 15a
Fuse 5a
Fused ignition
G202 (upper left kick panel)
G203 (lower right kick panel)
Ground
Hot at all times
Hot in run or acc
Illuminaton
Interior lights system
Junction box fuse/relay panel (under left side of dash)
L front spkr (+)
L front spkr (-)
L rear spkr (+)
L rear spkr (-)
Left door speaker
Left rear speaker
Nca
Power (b+)
Power distribution box (left side of engine compt)
R front spkr (+)
R front spkr (-)
R rear spkr (+)
R rear spkr (-)
Radio
Right door speaker
Right rear speaker
S203
S223
W/ super cab
W/o super cab

Premium Sound Radio Wiring Diagram for Ford Pickup F250 1998

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List of elements for Premium Sound Radio Wiring Diagram for Ford Pickup F250 1998:

(upper left kick panel) g202
Antenna
Audio on
C242
C261
C262
C263
C264
Cd changer
Cd left (+)
Cd left (-)
Cd right (+)
Cd right (-)
Fuse 5a
Fuse fuse 15a
Fused ignition
G202 (upper left kick panel)
G203 (lower right kick panel)
Ground
Hot at all times
Hot in run or acc
Illulminaton
Interior lights system
Junction box fuse/relay panel) (under left side of dash)
L front (+)
L front (-)
L front sig (+)
L front sig (-)
L rear (+)
L rear (-)
L rear sig (+)
L rear sig (-)
Left door speaker
Left rear speaker
Left sig (+)
Left sig (-)
Logic mute
Nca
Power
Power (b+)
Power distribution box (left side of engine compt)
Premium sound amplifier (behind center of dash)
Protocal b
Protocol a
Protocol b
R front (+)
R front (-)
R front sig (+)
R front sig (-)
R rear (+)
R rear (-)
R rear sig (+)
R rear sig (-)
Radio
Right door speaker
Right rear speaker
Right sig (+)
Right sig (-)
S203
S206 (radio harn, behind center of dash)
S209
S210
S223
Shield
Tan
W/ super cab
W/o super cab

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Ford Pickup F250 1998

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List of elements for Shift Interlock Wiring Diagram for Ford Pickup F250 1998:

Brake pedal position (bpp) switch (under left side of dash)
C242
Exterior lights system
Fuse 13 15a
Fuse 6 5a
G203 (lower right kick panel)
Hot at all times
Hot in run
Junction box fuse/ relay panel (under left side of dash)
S204
S221
S231 (main harn, near breakout to instrument cluster)
S265
Shift lock actuator (in steering column)
Solid state

STARTING/CHARGING

Charging Wiring Diagram for Ford Pickup F250 1998

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List of elements for Charging Wiring Diagram for Ford Pickup F250 1998:

175a
20a
Battery
C166
C176
C177
C178
C238
C243
Charge indicator
Fuse 10a
G123 (rear of engine compt)
G133 (on engine)
Generator/ voltage regulator
Hot in start or run
Inline mini fuse (near gener- ator)
Instru- ment cluster
Junction box fuse/ relay panel
Mega fuse (gener- ator) (right rear of engine compt)
Ohms
Power distribution system
Red
Starter motor
Starter motor relay (right rear of engine compt)

Starting Wiring Diagram, A/T for Ford Pickup F250 1998

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List of elements for Starting Wiring Diagram, A/T for Ford Pickup F250 1998:

(engine harn, near breakout to mega fuse)
(left side of trans)
(main harness, in breakout to clutch pedal position sw) s227
175a
87a
Acc
Battery
C166
C167
C192
C243
C257
Charging circuit
Clutch pedal position (ccp) switch jumper (under left side of dash)
Digital transmission range (dtr) sensor
Engine controls system (5.4l cng)
Fuse 15a
Fuse 50a
G123 (rear of engine compt)
G133 (on engine)
Ignition switch
Junction box fuse/ relay panel
Lock
Mega fuse (pdb) (right rear of engine compt)
Off
Power distribution box
Red
Remote anti-theft personality (rap) module (left side of dash)
Rpo relay block (right side of dash)
Run
S142
S214
S226 (main harn, in breakout to passngr's airbag)
Sta
Start
Start inter- rupt relay
Starter motor (lower right side of engine)
Starter relay (right rear of engine compt)
Tan/ red
W/ rap module
W/o rap module

Starting Wiring Diagram, M/T for Ford Pickup F250 1998

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List of elements for Starting Wiring Diagram, M/T for Ford Pickup F250 1998:

(main harness, in breakout to clutch pedal position sw) s227
175a
87a
Acc
Battery
C166
C167
C243
C257
Charging circuit
Clutch pedal position (ccp) switch (on clutch pedal arm)
Fuse 15a
Fuse 50a
Fuse 5a
G123 (rear of engine compt)
G133 (on engine)
Ignition switch
Junction box fuse/ relay panel
Lock
Mega fuse (pdb) (right rear of engine compt)
Off
Power distribution box
Powertrain control module (pcm) (right side of engine compt)
Red
Remote anti-theft personality (rap) module (left side of dash)
Rpo relay block (right side of dash)
Run
S214
S226 (main harn, in breakout to passngr's airbag)
Sta
Start
Start inter- rupt relay
Starter motor (lower right side of engine)
Starter relay (right rear of engine compt)
Tan/ red
W/ rap module
W/o rap module

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Ford Pickup F250 1998

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List of elements for Supplemental Restraint Wiring Diagram for Ford Pickup F250 1998:

(behind right side of dash)
(main harn, near radio breakout)
(main harness, near breakout to rpo relay box)
(main harness, near ground g202)
(under center of dash) data link connector (dlc)
* c213
* c214
* pin shorting bar is engaged when module connector is disconnected
Air bag diagnostic monitor (behind right side of dash)
Air bag ind
Air bag indicator
C208
C209
C213
C214
C238
C242
C243
Clock- spring assembly
Data link con
Driver's air bag
Drvr air bag
Fuse 19 10a
Fuse 2 10a
Fuse 22 10a
G200 (lower left kick panel)
G203 (lower right kick panel)
Ground
Hot at all times
Hot in run
Hot in run or start
Instrument cluster
Junction box fuse/relay panel (under left side of dash)
L crash sens
Left primary crash sensor (in left front of eng compt)
Nca
Off
Pad feed
Pad return
Passenger's air bag
Passive deactivation (pad) module
Power (bat)
Power (run)
Power distribution box (in left side of engine compt)
R crash sens
Right primary crash sensor (in right front of eng compt)
S203
S208
S229
Shorting bar

TRANSMISSION

4.2L

4.2L, Transmission Wiring Diagram, 4R70W for Ford Pickup F250 1998

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List of elements for 4.2L, Transmission Wiring Diagram, 4R70W for Ford Pickup F250 1998:

(backup lamp sw to rear lamp harn, right rear of engine compt)
(bare)
(engine ctrl harn, near breakout to starter motor relay)
(engine ctrl harn, near breakout to vapor mgt valve) s143
(engine ctrl harn, right rear of engine compt) s138
(fuel charge harn, near breakout to fuel inj 4)
(left side of engine compt) power distribution box
4r70w transmission (mounted under center of vehicle)
Autolamp module, instr cluster, brake warning resistor assy
Boo
Brake pedal position switch (under left side of dash)
Brake pressure switch
Breakout to pdb)
C174
C236
Case gnd
Data
Data link connector (dlc) (partial) (under center of dash)
Digital transmission range sensor (left side of transmission)
Dlc (+)
Dlc (-)
Ect
Electronic pressure control (epc) solenoid
Engine controls system
Engine coolant temperature (ect) sensor (top front of engine)
Engine fuse module (in engine compt, near pdb)
Epc
Fuse 13 15a
Fuse 24 30a
Fuse 29 5a
Fuse 30 30a
Fuse 5a
G108 (left front radiator support)
G123 (rear of engine compartment)
G200 (lower left kick panel)
Hot at all times
Hot in run
Hot in start or run
Iat
Ignition coils, radio noise capacitor
Instrument cluster
Intake air temperature sensor (on intake manifold)
Junction box fuse/ relay panel (under left side of dash)
Kapwr
Malfunction indicator lamp (mil) (check engine)
Mil
O/d off ind
Oss
Output shaft speed sensor (left side of transmission)
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
R p
Rear abs control module
Red
S100
S101
S106
S107
S116
S127 (engine ctrl harn, near breakout to vapor mgt valve)
S128 (engine ctrl harn, near breakout to pcm)
S135
S137
S140 (backup lamp sw to rear lamp harn, right rear of engine compt)
S141
S144
S221
S225
Shift solenoids (ss)
Sig rtn
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
Vehicle speed sensor (vss) (left rear of transmission)
Vpwr
Vref
Vss

Transfer Case Wiring Diagram, Electronic for Ford Pickup F250 1998

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List of elements for Transfer Case Wiring Diagram, Electronic for Ford Pickup F250 1998:

(engine ctrl harn, near breakout to vapor mgt valve) s143
(lower right kick panel) g203
(main harn, near breakout to gem)
(right side of engine compt) 4x2 center axle disconnect solenoid
(right side of engine compt) 4x4 center axle disconnect solenoid
(under left side of dash) junction box fuse/ relay panel
1.1k ohms
3.9k ohms
4 wheel drive mode switch
4wd low out
4wd output
4x2 sol
4x4 high ind
4x4 high range indicator
4x4 low ind
4x4 low range indicator
4x4 mode sw
4x4 sol
Anti-lock brake module
Apron) g105
Autolamp mod, tcs switch, brake warning resistor assy
Bpp sw input
Brake pedal position switch (under left side of dash)
Brake pressure switch
C174
C236
C238
C239
C241
C242
C243
Digital transmission range (dtr) sensor (all others) (left side of transmission)
Early 1997 all others
Flasher relay
Fuse 13 15a
Fuse 17 30a
Fuse 23 10a
Fuse 29 5a
G108 (top front radiator support)
G200 (lower left kick panel)
Generic electronic module (gem) (behind left side of dash)
H2l
H2l rly ctrl
Hot at all times
Hot in run or start
Illumination
Instrument cluster
Interior lights (instrument illumination)
Junction box fuse/ relay panel (under left side of dash)
L2h
L2h rly ctrl
Magnetic clutch
Neutral sw in
Not used
Ohms
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Rear abs control module
Red
S102
S120
S142 (engine ctrl harn, near breakout to pwr dist box)
S201
S202
S213
S221
S225
S228
S231 (main harn, near breakout to instr cluster)
S232 (main harn, near breakout to instrument cluster)
S238
Shift motor
Sig return
Sw a input
Sw b input
Sw c input
Sw d input
Tcec rly ctrl
Trailer tow battery relay
Transfer case assembly (below vehicle, behind transmission)
Transfer case electric clutch relay (in rpo relay block)
Transfer case shift relay module (behind center of dash)
Transmission range (tr) sensor (early 1997) (left side of transmission)
Vehicle speed sensor (vss) (left rear of transmission)
Vss (+)
Vss (-)
Wiper/washer (multi-function switch)

Transfer Case Wiring Diagram, Mechanical for Ford Pickup F250 1998

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List of elements for Transfer Case Wiring Diagram, Mechanical for Ford Pickup F250 1998:

(behind left side of dash) generic electronic module (gem)
(engine ctrl harn, near breakout to pwr dist box)
(right side of engine compt) 4x2 center axle disconnect solenoid
(right side of engine compt) 4x4 center axle disconnect solenoid
4wd low out
4x2
4x2 sol
4x4 high ind
4x4 high range indicator
4x4 low ind
4x4 low indicator switch (left side of transmission)
4x4 low range indicator
4x4 sol
4x4 sw in
Anti-lock brake module
Autolamp mod, tcs switch, brake warning resistor assy
C174
C236
C238
C239
C241
Flasher relay
Fuse 17 30a
Fuse 23 10a
Fuse 29 5a
Hot at all times
Hot in run or start
Instrument cluster
Junction box fuse/ relay panel (under left side of dash)
Magnetic clutch
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Red
S120
S142
S225
S228
S232 (main harn, near breakout to instrument cluster)
Sotf rly ctrl
Trailer tow battery relay
Transfer case assembly
Transfer case electric clutch relay (in rpo relay block)

4.6L

4.6L, Transmission Wiring Diagram, 4R70W for Ford Pickup F250 1998

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List of elements for 4.6L, Transmission Wiring Diagram, 4R70W for Ford Pickup F250 1998:

(backup lamp sw to rear lamp harn, right rear of engine compt)
(bare)
(engine ctrl harn, near breakout to starter motor relay)
(engine ctrl harn, near breakout to vapor mgt valve) s143
(engine ctrl harn, right rear of engine compt) s138
(fuel charge harn, near breakout to fuel inj 4)
(left side of engine compt) power distribution box
4r70w transmission (mounted under center of vehicle)
Autolamp module, instr cluster, brake warning resistor assy
Boo
Brake pedal position switch (under left side of dash)
Brake pressure switch
Breakout to pdb)
C174
C236
Case gnd
Data
Data link connector (dlc) (partial) (under center of dash)
Digital transmission range sensor (left side of transmission)
Dlc (+)
Dlc (-)
Ect
Electronic pressure control (epc) solenoid
Engine controls system
Engine coolant temperature (ect) sensor (top front of engine)
Engine fuse module (in engine compt, near pdb)
Epc
Fuse 13 15a
Fuse 24 30a
Fuse 29 5a
Fuse 30 30a
Fuse 5a
G108 (left front radiator support)
G123 (rear of engine compartment)
G200 (lower left kick panel)
Hot at all times
Hot in run
Hot in start or run
Iat
Ignition coils, radio noise capacitor
Instrument cluster
Intake air temperature sensor (on intake manifold)
Junction box fuse/ relay panel (under left side of dash)
Kapwr
Malfunction indicator lamp (mil) (check engine)
Mil
O/d off ind
Oss
Output shaft speed sensor (left side of transmission)
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
R p
Rear abs control module
Red
S100
S101
S106
S107
S116
S127 (engine ctrl harn, near breakout to vapor mgt valve)
S128 (engine ctrl harn, near breakout to pcm)
S135
S137
S140 (backup lamp sw to rear lamp harn, right rear of engine compt)
S141
S144
S221
S225
Shift solenoids (ss)
Sig rtn
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
Vehicle speed sensor (vss) (left rear of transmission)
Vpwr
Vref
Vss

Transfer Case Wiring Diagram, Electronic for Ford Pickup F250 1998

Get access to all wiring diagrams of the car

List of elements for Transfer Case Wiring Diagram, Electronic for Ford Pickup F250 1998:

(engine ctrl harn, near breakout to vapor mgt valve) s143
(lower right kick panel) g203
(main harn, near breakout to gem)
(right side of engine compt) 4x2 center axle disconnect solenoid
(right side of engine compt) 4x4 center axle disconnect solenoid
(under left side of dash) junction box fuse/ relay panel
1.1k ohms
3.9k ohms
4 wheel drive mode switch
4wd low out
4wd output
4x2 sol
4x4 high ind
4x4 high range indicator
4x4 low ind
4x4 low range indicator
4x4 mode sw
4x4 sol
Anti-lock brake module
Apron) g105
Autolamp mod, tcs switch, brake warning resistor assy
Bpp sw input
Brake pedal position switch (under left side of dash)
Brake pressure switch
C174
C236
C238
C239
C241
C242
C243
Digital transmission range (dtr) sensor (all others) (left side of transmission)
Early 1997 all others
Flasher relay
Fuse 13 15a
Fuse 17 30a
Fuse 23 10a
Fuse 29 5a
G108 (top front radiator support)
G200 (lower left kick panel)
Generic electronic module (gem) (behind left side of dash)
H2l
H2l rly ctrl
Hot at all times
Hot in run or start
Illumination
Instrument cluster
Interior lights (instrument illumination)
Junction box fuse/ relay panel (under left side of dash)
L2h
L2h rly ctrl
Magnetic clutch
Neutral sw in
Not used
Ohms
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Rear abs control module
Red
S102
S120
S142 (engine ctrl harn, near breakout to pwr dist box)
S201
S202
S213
S221
S225
S228
S231 (main harn, near breakout to instr cluster)
S232 (main harn, near breakout to instrument cluster)
S238
Shift motor
Sig return
Sw a input
Sw b input
Sw c input
Sw d input
Tcec rly ctrl
Trailer tow battery relay
Transfer case assembly (below vehicle, behind transmission)
Transfer case electric clutch relay (in rpo relay block)
Transfer case shift relay module (behind center of dash)
Transmission range (tr) sensor (early 1997) (left side of transmission)
Vehicle speed sensor (vss) (left rear of transmission)
Vss (+)
Vss (-)
Wiper/washer (multi-function switch)

Transfer Case Wiring Diagram, Mechanical for Ford Pickup F250 1998

Get access to all wiring diagrams of the car

List of elements for Transfer Case Wiring Diagram, Mechanical for Ford Pickup F250 1998:

(behind left side of dash) generic electronic module (gem)
(engine ctrl harn, near breakout to pwr dist box)
(right side of engine compt) 4x2 center axle disconnect solenoid
(right side of engine compt) 4x4 center axle disconnect solenoid
4wd low out
4x2
4x2 sol
4x4 high ind
4x4 high range indicator
4x4 low ind
4x4 low indicator switch (left side of transmission)
4x4 low range indicator
4x4 sol
4x4 sw in
Anti-lock brake module
Autolamp mod, tcs switch, brake warning resistor assy
C174
C236
C238
C239
C241
Flasher relay
Fuse 17 30a
Fuse 23 10a
Fuse 29 5a
Hot at all times
Hot in run or start
Instrument cluster
Junction box fuse/ relay panel (under left side of dash)
Magnetic clutch
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Red
S120
S142
S225
S228
S232 (main harn, near breakout to instrument cluster)
Sotf rly ctrl
Trailer tow battery relay
Transfer case assembly
Transfer case electric clutch relay (in rpo relay block)

5.4L

5.4L CNG, Transmission Wiring Diagram, E4OD for Ford Pickup F250 1998

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List of elements for 5.4L CNG, Transmission Wiring Diagram, E4OD for Ford Pickup F250 1998:

(backup lamp sw to rear lamp harn, right rear of eng compt)
(bare)
(engine ctrl harn, left rear of engine compt) ngv only
(engine ctrl harn, near breakout to starter motor relay)
(engine ctrl harn, near breakout to vapor mgt valve)
(engine ctrl harn, near breakout to vapor mgt valve) s143
(engine ctrl harn, right rear of engine compt)
(fuel charge harn, near breakout to fuel inj 4)
(left side of engine compt) power distribution box
(under center of dash) (partial)
Autolamp module, instr cluster, brake warning resistor assy
Boo
Brake pedal position switch (under left side of dash)
Brake pressure switch
Breakout to pdb)
C174
C237
Case gnd
Ccs
Coast clutch solenoid
Data
Data link connector (dlc)
Digital transmission range sensor (left side of transmission)
Dlc (+)
Dlc (-)
E4od transmission
Ect
Electronic pressure control (epc) solenoid
Eng coolant temp gauge
Engine controls system
Engine coolant temperature (ect) sensor (top front of engine)
Engine fuse module (in engine compt, near pdb)
Epc
Fuse 13 15a
Fuse 24 30a
Fuse 29 5a
Fuse 30 30a
Fuse 5a
G108 (left front radiator support)
G123 (rear of engine compartment)
G200 (lower left kick panel)
Hot at all times
Hot in run
Hot in start or run
Iat
Ignition coils, radio noise capacitor
Instrument cluster
Intake air temperature sensor (on intake manifold)
Junction box fuse/ relay panel (under left side of dash)
Kapwr
Malfunction indicator lamp (mil) (check engine)
Mil
Ngv module (on front of engine)
O/d off ind
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
R p
Rear abs control module
Red
S100
S101
S106
S107
S116
S123
S127
S128 (engine ctrl harn, near breakout to pcm)
S135
S137
S138
S140
S141
S156
S157
S158
S207
S221
S225
Shift solenoid
Sig rtn
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
Vehicle speed sensor (vss) (left rear of transmission)
Vpwr
Vref
Vss

5.4L, Transmission Wiring Diagram, E4OD for Ford Pickup F250 1998

Get access to all wiring diagrams of the car

List of elements for 5.4L, Transmission Wiring Diagram, E4OD for Ford Pickup F250 1998:

(backup lamp sw to rear lamp harn, right rear of eng compt)
(bare)
(engine ctrl harn, left rear of engine compt) ngv only
(engine ctrl harn, near breakout to starter motor relay)
(engine ctrl harn, near breakout to vapor mgt valve)
(engine ctrl harn, near breakout to vapor mgt valve) s143
(engine ctrl harn, right rear of engine compt)
(fuel charge harn, near breakout to fuel inj 4)
(left side of engine compt) power distribution box
(under center of dash) (partial)
Autolamp module, instr cluster, brake warning resistor assy
Boo
Brake pedal position switch (under left side of dash)
Brake pressure switch
Breakout to pdb)
C174
C237
Case gnd
Ccs
Coast clutch solenoid
Data
Data link connector (dlc)
Digital transmission range sensor (left side of transmission)
Dlc (+)
Dlc (-)
E4od transmission
Ect
Electronic pressure control (epc) solenoid
Eng coolant temp gauge
Engine controls system
Engine coolant temperature (ect) sensor (top front of engine)
Engine fuse module (in engine compt, near pdb)
Epc
Fuse 13 15a
Fuse 24 30a
Fuse 29 5a
Fuse 30 30a
Fuse 5a
G108 (left front radiator support)
G123 (rear of engine compartment)
G200 (lower left kick panel)
Hot at all times
Hot in run
Hot in start or run
Iat
Ignition coils, radio noise capacitor
Instrument cluster
Intake air temperature sensor (on intake manifold)
Junction box fuse/ relay panel (under left side of dash)
Kapwr
Malfunction indicator lamp (mil) (check engine)
Mil
Ngv module (on front of engine)
O/d off ind
Pcm power diode
Pcm power relay
Power distribution box (left side of engine compt)
Powertrain control module (pcm) (right side of engine compt)
Pwr gnd
R p
Rear abs control module
Red
S100
S101
S106
S107
S116
S123
S127
S128 (engine ctrl harn, near breakout to pcm)
S135
S137
S138
S140
S141
S156
S157
S158
S207
S221
S225
Shift solenoid
Sig rtn
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
Vehicle speed sensor (vss) (left rear of transmission)
Vpwr
Vref
Vss

Transfer Case Wiring Diagram, Electronic for Ford Pickup F250 1998

Get access to all wiring diagrams of the car

List of elements for Transfer Case Wiring Diagram, Electronic for Ford Pickup F250 1998:

(engine ctrl harn, near breakout to vapor mgt valve) s143
(lower right kick panel) g203
(main harn, near breakout to gem)
(right side of engine compt) 4x2 center axle disconnect solenoid
(right side of engine compt) 4x4 center axle disconnect solenoid
(under left side of dash) junction box fuse/ relay panel
1.1k ohms
3.9k ohms
4 wheel drive mode switch
4wd low out
4wd output
4x2 sol
4x4 high ind
4x4 high range indicator
4x4 low ind
4x4 low range indicator
4x4 mode sw
4x4 sol
Anti-lock brake module
Apron) g105
Autolamp mod, tcs switch, brake warning resistor assy
Bpp sw input
Brake pedal position switch (under left side of dash)
Brake pressure switch
C174
C236
C238
C239
C241
C242
C243
Digital transmission range (dtr) sensor (all others) (left side of transmission)
Early 1997 all others
Flasher relay
Fuse 13 15a
Fuse 17 30a
Fuse 23 10a
Fuse 29 5a
G108 (top front radiator support)
G200 (lower left kick panel)
Generic electronic module (gem) (behind left side of dash)
H2l
H2l rly ctrl
Hot at all times
Hot in run or start
Illumination
Instrument cluster
Interior lights (instrument illumination)
Junction box fuse/ relay panel (under left side of dash)
L2h
L2h rly ctrl
Magnetic clutch
Neutral sw in
Not used
Ohms
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Rear abs control module
Red
S102
S120
S142 (engine ctrl harn, near breakout to pwr dist box)
S201
S202
S213
S221
S225
S228
S231 (main harn, near breakout to instr cluster)
S232 (main harn, near breakout to instrument cluster)
S238
Shift motor
Sig return
Sw a input
Sw b input
Sw c input
Sw d input
Tcec rly ctrl
Trailer tow battery relay
Transfer case assembly (below vehicle, behind transmission)
Transfer case electric clutch relay (in rpo relay block)
Transfer case shift relay module (behind center of dash)
Transmission range (tr) sensor (early 1997) (left side of transmission)
Vehicle speed sensor (vss) (left rear of transmission)
Vss (+)
Vss (-)
Wiper/washer (multi-function switch)

Transfer Case Wiring Diagram, Mechanical for Ford Pickup F250 1998

Get access to all wiring diagrams of the car

List of elements for Transfer Case Wiring Diagram, Mechanical for Ford Pickup F250 1998:

(behind left side of dash) generic electronic module (gem)
(engine ctrl harn, near breakout to pwr dist box)
(right side of engine compt) 4x2 center axle disconnect solenoid
(right side of engine compt) 4x4 center axle disconnect solenoid
4wd low out
4x2
4x2 sol
4x4 high ind
4x4 high range indicator
4x4 low ind
4x4 low indicator switch (left side of transmission)
4x4 low range indicator
4x4 sol
4x4 sw in
Anti-lock brake module
Autolamp mod, tcs switch, brake warning resistor assy
C174
C236
C238
C239
C241
Flasher relay
Fuse 17 30a
Fuse 23 10a
Fuse 29 5a
Hot at all times
Hot in run or start
Instrument cluster
Junction box fuse/ relay panel (under left side of dash)
Magnetic clutch
Power distribution box (left side of engine compt)
Powertrain control module (right side of engine compt)
Red
S120
S142
S225
S228
S232 (main harn, near breakout to instrument cluster)
Sotf rly ctrl
Trailer tow battery relay
Transfer case assembly
Transfer case electric clutch relay (in rpo relay block)

WARNING SYSTEMS

Warning System Wiring Diagrams for Ford Pickup F250 1998

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List of elements for Warning System Wiring Diagrams for Ford Pickup F250 1998:

(lower right kick panel) g203
Bat
C237
C238
C239
C242
C245
C267
Fasten belts indi- cator
Fuse 5a
G200 (lower left kick panel)
Generic electronic module (gem)/ central timer module (ctm) (behind center of dash)
Ground
Head
Headlamp switch
Hot at all times
Hot in run
Hot in run or acc
Hot in run or start
Hot in start
Ign
Ignition key warning switch (inside steering assembly)
Instrument cluster
Junction box fuse/relay panel (under left side of dash)
Key in ignition
Left door ajar
Left door ajar switch
Nca
Off
Park
Park/head input
Right door ajar
Right door ajar switch
S201
S203
S204
S206
S207
S225
Seat belt buckle
Seat belt ind
Seat belt warning switch (in seat belt buckle)
Steering column ground

WIPER/WASHER

Wiper/Washer Wiring Diagram for Ford Pickup F250 1998

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List of elements for Wiper/Washer Wiring Diagram for Ford Pickup F250 1998:

(1998) (1997)
(engine harn, left rear corner of engine compt) s146
(left side of engine compt) power distribution box
(rear of right fender apron) g105
103k ohms
11.3k
3.3k ohms
4 wheel drive mode switch
4.08k
Brake/run relay
C239
C243
C259
Fuse 30a
G109 (right front radiator support)
Generic electronic module/central timer module (behind left side of dash)
Hot in acc or run
Int max
Int min
Interval delay/wash
Junction box/fuse/ relay panel (under left side of dash)
Multi- function switch
Off
Off 47.6k ohms
Ohms
Park
Park sense
Red
Run
S102
S104
S113
S238 (main harn, in breakout to 4wd mode sw; 1997) (main harn, in breakout to gem; 1998)
Signal return
Tan/ red
Tan/red
Washer pump
Washer pump assembly
Washer pump relay
Washer switch
Windshield wiper motor
Wiper hi/lo relay
Wiper mode select
Wiper run/park relay
Wiper speed
Wiper switch