How quickly will I get access to the wiring diagrams after payment?

Access is activated instantly after a successful payment. A payment receipt and an activation email with a link to the wiring diagrams will be sent to your email.

How long will my access be valid?

Access is activated permanently and is not limited in time, just like if you purchased a physical book.

Where can I find the wiring diagrams I purchased?

In your personal account. To access it, click the user icon in the upper right corner of the website.

What if the wiring diagrams do not match my car model?

This is very rare, but if the diagrams do not match your vehicle, contact us at support@portal-diagnostov.com and attach a few photos of the connector or wiring that does not match. We will issue a refund.

All Wiring Diagrams for Ford F550 Super Duty 2008

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Ford F550 Super Duty 2008

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Ford F550 Super Duty 2008:

100

(at top left of hvac module) electric heater
(crew cab & regular cab: in left "a" pillar) (super cab: behind left side of dash)
(in extension assembly-a/c blower motor feed harness, near top of hvac housing) s250
(in extension assembly-a/c blower motor feed harness, near top of hvac housing) s251
150a
Ambient
Battery
Battery junction box (bjb) (at left rear of engine compt)
Blower command
Blower motor relay
C2280a
C2280b
C2280e
C228a
C2357b
C2463a
C2463b
C2463c
Cable pro
Cbp37
Ch122
Ch123
Ch207
Ch208
Ch211
Ch213
Ch228
Ch229
Ch237
Ch239
Chs29
Chs30
Computer data lines system
Driver temperature blend door actuator (at bottom of hvac assembly)
Drv htd seat sw
Drv sun load
Drv temp a+
Drv temp b+
Drv temp feedback
Front blower rly
Fuse 10a
Fuse 40a
Fuse 5a
G300
Gd133
Gnd
Heated mirror relay
Hot at all times
Hot in run or acc
Hot in run or start
Hscan+
Hscan-
Hvac-eatc
Incar temp sn
Lh111
Mode actr a+
Mode actr b+
Mode actr feedback
Mscan+
Mscan-
Nca
Panel/defrost mode actuator (at left side of hvac assembly)
Pass htd seat sw
Pass sun load
Pass temp a+
Pass temp b+
Pass temp feedback
Passenger temperature blend door actuator (at top middle of hvac assembly)
Rear def htd mirror
Recirc door a+
Recirc door b+
Recirculation door actuator (at right side of hvac case)
Red
Rh111
S104
S143
S144
S145
S206
S224
Sbp15
Smart junction box (on passenger side kick panel)
Steering wheel sw in
Vbat
Vdb06
Vdb07
Vh101
Vh407
Vh414
Vh416
Vh417
Vh436
Vh440
Vh441
Vh444
Vign
Vref actr
Vref rtn
W/ electric heater
W/o electric heater

Automatic A/C Wiring Diagram (2 of 3) for Ford F550 Super Duty 2008

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Ford F550 Super Duty 2008:

26

(at right side of hvac assembly) blower motor control module
(behind center of dash) autolamp/sunload sensor
(below driver seat) driver side front heated seat relay
(below passenger seat) passenger side front heated seat relay
(in extension
Assembly-a/c blower motor feed harness, at right side of hvac case)
Blower motor
C218a
C218b
Ch218
Ch402
Clock spring (in steering column)
Fan down
Fan up
G203 (behind center of dash, behind audio control module)
G300 (crew cab & regular cab: in left "a" pillar) (super cab: behind left side of dash)
Gd115
Headlights system
In vehicle temperature sensor (behind left side of dash)
Outside air temperature sensor (at right front of engine compt)
S210 (in main harness, near breakout behind audio control module)
S225
S257
Solid state control
Steering wheel/speed control switch
Vh101

Automatic A/C Wiring Diagram (3 of 3) for Ford F550 Super Duty 2008

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Ford F550 Super Duty 2008:

83

(at front of engine) (diesel) engine coolant temperature (ect) sensor
(diesel)
(diesel) (gas)
(gas)
(in engine control sensor & fuel charge harness, near breakout to front right side of engine, on top) s133
(in engine control sensor harness, near breakout to front center of engine compt)
(in engine control sensor harness, near breakout to front right side of engine, on top) s1013
A/c clutch diode
A/c clutch relay
A/c clutch solenoid
A/c cycling switch
A/c cycling switch (gas)
A/c high pressure switch (at right side of engine compt)
Accr
Accs
Acpsw
Audio/climate control switch
Battery junction box (bjb) (at left rear of engine compt)
Brake pressure switch (at bottom of master cylinder)
C1232b
C1232e
C175b
C175e
Ce237
Cec11
Ch302
Ch421
Ch425
Cht
Control
Cylinder head temperature sensor (6.8l: on right cylinder head) (5.4l: at rear of block, under intake)
Diesel
Dual pressure switch (diesel) (at right front of engine)
Ect
Electric fan clutch (at front of engine)
Engine controls system
Fuse 10a
Fuse 20a
Fuse 50 (gas) 30a fuse 39 (diesel) 50a
G103 (at right rear of engine compt)
G108 (at left rear of engine compt)
Gas
Gd119
Gnd
Hot at all times
Interior lights system
Kapwr
Media
Mpr (pcm-rc)
Nca control
Nca gnd
Nca sig
Nca vbpwr
Nca vpwr
Near breakout to left front of frame)
Pcm power relay
Powertrain control module (pcm) (at left side of firewall)
Re405
S1008 (in engine control sensor harness, near breakout to right rear of engine compt)
S1009 (in engine control sensor harness, near breakout to front right side of engine, on top)
S1010 (in engine control sensor harness, near breakout to front right side of engine, on top)
S114
S115
S117 (diesel)
S120
S128
S154 (gas)
S158 (gas)
Sbb36
Seek +
Seek -
Sig
Sig rtn
Sound systems
Temp +
Temp -
Vbpwr
Ve712
Ve716
Vec03
Vec10
Vol +
Vol -

Manual A/C Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008

List of elements for Manual A/C Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008:

93

(at top left of hvac module) electric heater
(behind center of dash, behind audio control module) g203
(in extension assembly-a/c blower motor feed harness, at right side of hvac case) s256
(in extension assembly-a/c blower motor feed harness, near top of hvac housing) s251
150a
Battery
Battery junction box (bjb) (at left rear of engine compt)
Blower motor
Blower motor relay
C2280a
C2280b
C2280e
C2357a
C2357b
C2463a
C2463b
C2463c
Cable pro
Cbp37
Ch122
Ch123
Ch202
Ch203
Ch207
Ch208
Ch233
Ch234
Ch428
Ch429
Ch430
Chs29
Chs30
Computer data lines system
Driver side front heated seat relay (below driver seat)
Drv htd seat sw
Drv temp a+
Drv temp b+
Drv temp feedback
Front blower motor resistor assembly (at right side of hvac assembly)
Front blower rly
Fuse 10a
Fuse 40a
Fuse 5a
G203 (behind center of dash, behind audio control module)
G300 (crew cab & regular cab: in left "a" pillar) (super cab: behind left side of dash)
Gd115
Gd133
Gnd
Heated mirror relay
Hot at all times
Hot in run or acc
Hot in run or start
Hscan+
Hscan-
Hvac-emtc
Lh111
Med hi
Med lo
Mode actr a+
Mode actr b-
Mscan+
Mscan-
Nca
Panel/defrost feedback
Panel/defrost mode actuator (at left side of hvac assembly)
Pass htd seat sw
Passenger side front heated seat relay (below passenger seat)
Rear def htd mirror
Recirc door a+
Recirc door b+
Red
Rh111
S104
S143
S144
S145
S206
S224
S225
S250 (in extension assembly-a/c blower motor feed harness, near top of hvac housing)
Sbp15
Smart junction box (on passenger side kick panel)
Temperature blend door actuator (behind right side of dash)
Vbat
Vdb06
Vdb07
Vh437
Vh439
Vign
Vref actr
Vref return
W/ electric heater
W/o electric heater

Manual A/C Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008

List of elements for Manual A/C Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008:

71

(at front of engine) (diesel) engine coolant temperature (ect) sensor
(diesel)
(diesel) (gas)
(gas)
(in engine control sensor & fuel charge harness, near breakout to front right side of engine, on top) s133
(in engine control sensor harness, near breakout to front center of engine compt)
(in engine control sensor harness, near breakout to front right side of engine, on top) s1013
A/c clutch diode
A/c clutch relay
A/c clutch solenoid
A/c cycling switch
A/c cycling switch (gas)
A/c high pressure switch (at right side of engine compt)
Accr
Accs
Acpsw
Battery junction box (bjb) (at left rear of engine compt)
Brake pressure switch (at bottom of master cylinder)
C1232b
C1232e
C175b
C175e
Ce237
Cec11
Ch302
Ch421
Ch425
Cht
Control
Cylinder head temperature sensor (6.8l: on right cylinder head) (5.4l: at rear of block, under intake)
Diesel
Dual pressure switch (diesel) (at right front of engine)
Ect
Electric fan clutch (at front of engine)
Engine controls system
Fuse 10a
Fuse 20a
Fuse 50 (gas) 30a fuse 39 (diesel) 50a
G103 (at right rear of engine compt)
G108 (at left rear of engine compt)
Gas
Gd119
Gnd
Hot at all times
Kapwr
Mpr (pcm-rc)
Nca control
Nca gnd
Nca sig
Nca vbpwr
Nca vpwr
Near breakout to left front of frame)
Pcm power relay
Powertrain control module (pcm) (at left side of firewall)
Re405
Recirculation door actuator (at right side of hvac case)
S1008 (in engine control sensor harness, near breakout to right rear of engine compt)
S114
S115
S120
S128
S154 s117 (diesel)
S158 (gas)
Sbb36
Sig
Sig rtn
Vbpwr
Ve712
Ve716
Vec03
Vec10

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Anti-lock Brakes Wiring Diagram for Ford F550 Super Duty 2008:

75

(at left front of frame) g135
(in engine control sensor harness, near breakout to left front of frame) s106
(or le111)
Abs control module (diesel: at left side of engine compt) (except diesel: at left rear of engine compt)
Battery junction box (bjb) (at left rear of engine compt)
Bpp
Bps
Brake pedal position switch (behind left side of dash, above brake pedal)
Brake pressure switch (at bottom of master cylinder)
C1232b
C1232e
C175b
C175e
C175t
C2280b
Cbb77
Cca10
Cca15
Ccb08
Cec11
Ces09
Computer data lines system
Cooling fans & transmissions systems
Diesel
Diff sen+
Diff sen-
Exterior lights system
Fl gnd
Fr gnd
Fuse 10a
Fuse 40a
Fuse 5a
G135 (at left front of frame)
Gas
Gd163
Gnd
Hot at all times
Hot in run or start
Hs can +
Hs can -
Ign
Interior lights system
Kl30 p
Kl30 v
Left front wheel speed sensor (at left front wheel assembly)
Lf whl spd+
Powertrain control module (pcm) (at left side of firewall)
Rca17
Rca19
Rca21
Rear axle speed sensor (on differential)
Red
Rf whl spd+
Right front wheel speed sensor (at right front wheel assembly)
S1009 (diesel) s196 (gas) (diesel: in engine control sensor harness, near breakout to front right side of engine, on top) (gas: in backup lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top)
S130 (in engine control sensor harness, near breakout to master cylinder)
S211 (in main harness, near breakout behind audio control module)
S227
S404 (in tail lamps harness, in breakout to left rear of frame)
S405 (in tail lamps harness, in breakout to left rear of frame)
Sbb06
Sbb09
Smart junction box (on passenger side kick panel)
Tracs
Tracsil
Traction control switch
Vbpwrt (or vbpwr)
Vca03
Vca05
Vca07
Vdb04
Vdb05
Ve822
Vss
Wiper/ washer system

ANTI-THEFT

Forced Entry Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008

List of elements for Forced Entry Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008:

28

(crew cab: in body main harness, near breakout to right "a" pillar) (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat)
(super cab: in body main harness, near breakout under passenger seat) (except super cab: in body main harness, near breakout to right "b" pillar)
All lock relay
Antenna
C2280c
C2280d
Control
Driver side door lock switch
Driver unlock relay
Fuse 15a
Fuse 20a
G302 (in right "a" pillar)
Hot at all times
Hot w/ accessory delay relay energized
Hsd
Lock
Logic
Passenger side door lock switch
Rke receiver internal antenna
S301
S305
S306
S308
S501
S639
Sense
Smart junction box (sjb) (on passenger side kick panel)
Un lock

Forced Entry Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008

List of elements for Forced Entry Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008:

26

(in driver door) driver side front door ajar switch
(in front passenger door) passenger side front door ajar switch
(in left front door) left front door lock actuator
(in left rear door harness, in breakout to left "b" pillar) s800
(in left rear door) driver side rear door ajar switch
(in right rear door harness, in breakout to left "b" pillar) s700
(in right rear door) passenger side rear door ajar switch
1/2
3/4
5/6
7/8
9/0
Ajar
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
G302 (in right "a" pillar)
Keypad switch assembly
Left rear door lock actuator (in left rear door)
Passenger side door lock actuator (in passenger door)
Right rear door lock actuator (in right rear door)
S302 (crew cab: in body main harness, near breakout across floor) (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat)
S308
S323
S326
S333 (in body main harness, near breakout under passenger seat)
S501
S639

Passive Anti-theft Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Passive Anti-theft Wiring Diagram for Ford F550 Super Duty 2008:

23

Anti-theft transceiver module (in steering column, near ignition cylinder)
C2280b
Cbp36
Computer data lines system
Epats rx
Epats tx
Fuse 5a
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
Gd133
Hot in run or start
Hs can+
Hs can-
Instrument cluster (ic)
Rf ground
Rf power
Run/start
Rx signal
S224
S226
Smart junction box (sjb) (on passenger side kick panel)
Tx signal
Vrt23
Vrt24

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Computer Data Lines Wiring Diagram for Ford F550 Super Duty 2008:

87

(at rear of transfer case) (6.4l) transmission control module (tcm)
(behind center of dash, behind audio control module) g203
(in main harness, near breakout behind left side of dash, left of radio opening)
(near breakout behind audio control module) s212
(near breakout behind audio control module) s214
(near breakout behind audio control module) s218
(near breakout behind left side of dash) s234
(near breakout behind left side of dash) s238
(near breakout behind left side of dash) s241
(near breakout to front left side of transmission, near top)
(near breakout to master cylinder) s129
(near breakout to right side of hvac housing) s208
(near breakout under driver seat) s319
(near breakout under driver seat) s320
(near right "c" pillar) s902
(near right "c" pillar) s903
(super cab: in body main harness, near breakout under breakout under passenger seat) (regular cab:in body main harness, near breakout to center of cab floor, near rear of cab) (crew cab: in body main harness, near breakout under center console) (others: in body main harness, near breakout to front of right running board) s312
(super cab: in body main harness, near breakout under breakout under passenger seat) (regular cab:in body main harness, near breakout to center of cab floor, near rear of cab) (crew cab: in body main harness, near breakout under center console) (others: near front of right running board)
4x4 control module
6.4l
Abs control module (except 6.4l: at left rear of engine compt) (6.4l: at left side of engine compt)
Audio control module (acm)
C1232b
C175b
C2280a
C2280b
C228a
C2357a
C240c
C240d
C2463c
C2500
C281a
C310b
C341c
C341d
Cdb08
Circuit deactivation ignition (cdim) module (behind left side of dash)
Control module)
Data link connector (dlc) (behind left side of dash)
Driver seat module (dsm) (under driver seat)
Dvd player (on center of inner roof)
Early production
Electric heater (6.4l) (at top left of hvac module)
Except 6.4l
Feps
Fuse 15a
G103 (6.4l) (at right rear of engine compt)
Gd113
Gd115
Hot at all times
Hs can+
Hs can-
Hvac-eatc
Hvac-emtc
Instrument cluster (ic)
Iso
Late production
Ms can+
Ms can-
Not used
Parking aid module (at right kick panel)
Powertrain control module (pcm) (at left side of firewall)
Restraints control module (rcm) (behind center of dash)
S1019
S131 (near breakout to master cylinder)
S162
S193
S215
S221 (near breakout behind audio control module)
S222
S223
S228
S230 (near breakout behind audio control module)
S235
S236 (near breakout behind left side of dash)
S313
Satellite digital audio receiver system (sdars) module (behind glove box)
Sbp20
Smart junction box (sjb) (on passenger side kick panel)
Trailer brake control (tbc) module (behind center of dash)
Turbocharger actuator (6.4l) (at top left side of engine)
Vdb04
Vdb05
Vdb06
Vdb07
Vdb10

COOLING FAN

Cooling Fan Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Cooling Fan Wiring Diagram for Ford F550 Super Duty 2008:

47

(diesel)
(diesel) (gas)
(gas)
(in engine control sensor & fuel charge harness, near breakout to front right side of engine, on top) s133
(in engine control sensor harness, near breakout to front right side of engine, on top)
(in engine control sensor harness, near breakout to right rear of engine compt) s1008
Battery junction box (bjb) (at left rear of engine compt)
Brake pressure switch (at bottom of master cylinder)
C1232b
C1232e
C175b
C175e
Ce237
Cec11
Cht
Control
Cylinder head temperature sensor (6.8l: on right cylinder head) (5.4l: at rear of block, under intake)
Diesel
Electric fan clutch (at front of engine)
Engine controls system
Engine coolant temperature (ect) sensor (diesel) (at front of engine)
Fuse 10a
Fuse 20a
Fuse 50 (gas) 30a fuse 39 (diesel) 50a
Gas
Gd119
Gnd
Hot at all times
Kapwr
Mpr (pcm-rc)
Nca
Pcm power relay
Powertrain control module (pcm) (at left side of firewall)
Re405
S1009 (in engine control sensor harness, near breakout to front right side of engine, on top)
S1013 (in engine control sensor harness, near breakout to front right side of engine, on top)
S154 s117 (diesel)
S158 (gas)
Sbb36
Sig
Sig rtn
Vbpwr
Ve712
Ve716
Vec03
Vec10
Vpwr

CRUISE CONTROL

6.4L DIESEL

6.4L Diesel, Cruise Control Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Cruise Control Wiring Diagram for Ford F550 Super Duty 2008:

92

(in backup lamp switch to rear lamp feed harness, near breakout to top of transmission, near left side of transmission)
(in engine control sensor harness, near breakout to front right side of engine, on top)
(in engine control sensor harness, near breakout to left front corner of vehicle) s116
(in engine control sensor harness, near breakout to master cylinder) s130
4x4 control module
Abs control module (at left rear of engine compt)
Accelerator pedal position sensor (on accelerator pedal support)
Air conditioning system
App1
App2
Audio/ climate control switch
Battery junction box (bjb) (at left rear of engine compt)
Bpp
Bps
Brake pedal position switch (behind left side of dash, above brake pedal)
Brake pressure switch (at bottom of master cylinder)
C1232b
C1232e
C218a
C218b
C281a
Cbb71
Ccb08
Ce904
Cec11
Ces09
Clock spring (in steering column)
Clutch pedal position switch (m/t) (behind left side of dash, above clutch pedal)
Computer data lines system
Cooling fans system
Cpp tt
Engine controls system
Etcref 2
Etcref 3
Etcrtn 2
Etcrtn 3
Exterior lights system
Fan down
Fan up
Fuse 10a
Fuse 5a
G202 (behind center of dash, behind audio control module)
Hot at all times
Hot in run or start
Hot w/ pcm power relay energized
Hs acn-
Hs can+
Interior lights system
Iss
Keypwr (r/s) vss
Le111
Le136
Le137
Off
Oss
Output shaft speed (oss) sensor (at top of transmission extension housing)
Powertrain control module (pcm) (at left side of firewall)
Re136
Re137
Res08
Resume
Ret04
Ret24
S1009 (in engine control sensor harness, near breakout to front right side of engine, on top)
S101 (in engine control sensor harness, near breakout to left front of frame)
S106 (in engine control sensor harness, near breakout to left front of frame)
S114
S123
S196
S198 (in backup lamp switch to rear lamp feed harness, near breakout to top of transmission, near tail shaft housing)
S211 (in main harness, near breakout behind audio control module)
S239
Sccs
Sccs rtn
Set+
Set-
Speed sensor assembly (at top left side of transmission)
Steering wheel/speed control switch
Transmission control module (at rear of transfer case)
Transmissions system
Trgnd
Tss
Vbpwr
Vdb04
Vdb05
Ve701
Ve702
Ve744
Ve822
Ves10
Vet33
Windshield wiper motor (at left side of firewall)

6.8L

6.8L, Cruise Control Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 6.8L, Cruise Control Wiring Diagram for Ford F550 Super Duty 2008:

100

(at bottom of master cylinder) brake pressure switch
(at top of transmission extension housing) output shaft speed (oss) sensor
(in backup lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top)
(in engine control sensor harness, near breakout to master cylinder) s130
4x4 control module
Abs control module (at left rear of engine compt)
Accelerator pedal position sensor (on accelerator pedal support)
Air conditioning system
App1
App2
App3
Audio/ climate control switch
Battery junction box (bjb) (at left rear of engine compt)
Bpp
Bps
Brake pedal position switch (behind left side of dash, above brake pedal)
C175b
C175e
C175t
C218a
C218b
C281a
Cbb71
Ccb08
Ce412
Ce426
Ce904
Ces09
Clock spring (in steering column)
Clutch pedal position switch (m/t) (behind left side of dash, above clutch pedal)
Computer data lines system
Cpp tt
Electronic throttle control (etc) motor (on throttle body)
Etcref
Etcref1
Etcrtn
Etcrtn1
Exterior lights system
Fan down
Fan up
Fuse 5a
G103 (at right rear of engine compt)
G202 (behind center of dash, behind audio control module)
Hot at all times
Hot in run or start
Hs can+
Hs can-
Interior lights system
Isp r
Iss
Le111
Le136
Le137
Le428
Off
Oss
Powertrain control module (pcm) (at left side of firewall)
Re136
Re137
Re406
Re427
Res08
Resume
Ret04
S106 (in engine control sensor harness, near breakout to left front of frame)
S123
S162
S183
S196 (in backup lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top)
S211 (in main harness, near breakout behind audio control module)
S239
Sccs
Sccs rtn
Set+
Set-
Solid state
Speed sensor assembly (at top left side of transmission)
Steering wheel/speed control switch
T sigrtn
Tacm n
Tacm p
Throttle position sensor (tps) (5.4l: on throttle body) (6.8l: at top center of engine)
Tp1 ns
Tp2 ps
Transmissions system
Tss
Vbpwr
Vdb04
Vdb05
Ve701
Ve702
Ve703
Ve744
Ve818
Ve819
Ve822
Ves10
Vet33
Vss
Windshield wiper motor (at left side of firewall)

DEFOGGERS

Defoggers Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Defoggers Wiring Diagram for Ford F550 Super Duty 2008:

25

(in body main harness, under driver seat) s329
Automatic a/c
Battery junction box (bjb) (at left rear of engine compt)
C2280b
C228b
C2357a
Driver side exterior rear view mirror
Fuse 10a
Fuse 15a
Fuse 20a
G302 (in right "a" pillar)
Heated mirror relay
Hot at all times
Hot in run
Hvac- eatc
Hvac- emtc
Manual a/c
Nca
Passenger side exterior rear view mirror
Rear def htd mirror
S201
S308
S501
S639
Smart junction box (sjb) (on passenger side kick panel)

ENGINE PERFORMANCE

6.4L DIESEL

6.4L Diesel, Engine Performance Wiring Diagram (1 of 6) for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Engine Performance Wiring Diagram (1 of 6) for Ford F550 Super Duty 2008:

119

(at right rear of engine compt) g103
(in engine control sensor harness, near breakout to left front of frame) s101
(in engine control sensor harness, near breakout to right rear of engine compt) s102
Accr
Air conditioning system
Anti-lock brakes system
App 1
App 1 rtn
App 1 vref
App 2
App 2 rtn
App 2 vref
Battery junction box (bjb) (at left rear of engine compt)
Bcp il
Bcp sw
Bpp
Bps
C1232b
Case gnd
Cbb71
Cbb76
Cca10
Cca15
Ccb06
Cdc12
Cdc35
Cdc38
Cdc46
Cdc47
Ce140
Ce237
Ce326
Ce904
Ce911
Ce912
Ce913
Ce914
Ce925
Ces09
Cet21
Ch302
Clutch pedal position switch (m/t) (behind left side of dash, above clutch pedal)
Cmc25
Computer data lines system
Cpp bt
Cpp tt
Crank
Cruise control system
Cto
Doct
Dpfdp
Dpft 1 in
Dpft out
Fpm
Fuse 10a
Fuse 20a
Fuse 50a
Fuse 5a
G103 (at right rear of engine compt)
G106 (at right rear of engine compt)
Gd113
Gd164
Gencom
Genmon
Hot at all times
Hot in run or start
Hs can +
Hs can -
Kapwr
Keypwr (r/s)
Le136
Le137
Le434
Not used
Pbpp
Pcm power relay
Pcmrc
Powertrain control module (pcm) (at left side of firewall)
Pto
Pto gnd
Pto ind
Pto rpm
Pto vref
Pwrgnd
Re136
Re137
Re327
Res08
Reversing lamp relay
S117
S123
S162
S208 (in main harness, near breakout to right side of hvac housing)
Sbb36
Sccs
Sccs rtn
Smc
Smr/start
Starting/charging system
Tracs
Tracsil
Transmissions system
Vdb04
Vdb05
Ve225
Ve701
Ve702
Ve746
Ve747
Ve748
Ve749
Ve822
Ve823
Ves10
Vmv05
Vpwr
Vso
Vss
Wfs

6.4L Diesel, Engine Performance Wiring Diagram (2 of 6) for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Engine Performance Wiring Diagram (2 of 6) for Ford F550 Super Duty 2008:

39

(behind left side of dash, above brake pedal) brake pedal position switch
(behind left side of dash, on park brake assembly) parking brake switch
(in main harness, behind right side of dash, right of radio opening)
(inside of left frame rail) water in fuel sensor
(super cab: in body main harness, near breakout under passenger seat) (regular cab: in body main harness, near breakout to right "b" pillar) s304
C2280a
C2280b
C2280c
Computer data lines system
Exterior lights system
Fuel sender 1
Fuel sender 2
Fuel sender rtn 2
Fuel tank select
Fuel tank selector switch (w/ duel fuel tank)
Fuel tank selector valve (at left rear of cab)
Fuel tank sensor
Fuse 10a
G203 (behind center of dash, behind audio control module)
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
Hot at all times
Hot in run or acc
Instrument cluster (ic)
Micro
Ms can +
Ms can -
Primary
Primary fuel tank sensor (w/ dual fuel tank)
S106 (in engine control sensor harness, near breakout to left front of frame)
S116 (in engine control sensor harness, near breakout to left front corner of vehicle)
S225
S2439
S245
S246 (in main harness, behind right side of dash, right of radio opening)
S326
Secondary
Secondary fuel tank sensor (w/ dual fuel tank)
Sense
Smart junction box (on passenger side kick panel)

6.4L Diesel, Engine Performance Wiring Diagram (3 of 6) for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Engine Performance Wiring Diagram (3 of 6) for Ford F550 Super Duty 2008:

43

(at right kick panel) inertia fuel shutoff (ifs) switch
(in engine control sensor harness, near breakout to front right side of engine, on top) s1010
(in engine control sensor harness, near breakout to right rear of engine compartment) s107
(near left side of transmission) fuel pump
Battery junction box (bjb) (at left rear of engine compt)
Brake pressure switch (at bottom of master cylinder)
C1273a
C1273b
Cbb12
Ce243
Ce244
Ce245
Ce246
Ce247
Ce248
Ce251
Ce252
Ce513
Ce514
Cooling fans system
Fuel cooler (at left front of engine)
Fuel pump diode
Fuel pump relay
Fuse 20a
Fuse 50a
Fuse 5a
G104 (at left rear of engine compt)
Glow plug control module (gpcm) (at top right front of engine)
Gpd
Gpe
Hot at all times
Kapwr
Left glow plug bank (at lower left side of engine)
Right glow plug bank (at right side of engine)
S1000
S1003
S1009 (in engine control sensor harness, near breakout to front right side of engine, on top)
S103
S113
S124
Sbb27
Sbb47
Vpwr

6.4L Diesel, Engine Performance Wiring Diagram (4 of 6) for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Engine Performance Wiring Diagram (4 of 6) for Ford F550 Super Duty 2008:

49

(in engine control sensor harness, near breakout to front right side of engine, on top) s114
(in right side of exhaust) exhaust gas temperature sensor 1
(in right side of exhaust) exhaust gas temperature sensor 2
(in right side of exhaust) exhaust gas temperature sensor 3
(not used)
(on accelerator pedal support) accelerator pedal position sensor
(on right side frame rail) diesel particulate filter pressure sensor
Acp sw
Air conditioning system
C1232e
Ce250
Ce315
Ce514
Cec11
Ch425
Ckp +
Ckp -
Cooling fans system
Crankshaft position sensor
Ctrl
Egrvp
Egt 1
Fcc
Fuel injector 2 (at top left of engine)
Fuel injector 3 (at top right of engine)
Fuel injector 5 (at right rear of engine)
Fuel injector 8 (at left rear of engine)
Gpd
Iat 2
Inj 2 -
Inj 3 -
Inj 5 -
Inj 8 -
Powertrain control module (pcm) (at left side of firewall)
Re135
Re206
Re207
Re209
Re212
Red
S408 (in tail lamps harness, near breakout to left middle of frame)
Sig
Vbpwr
Ve711
Ve721
Ve722
Ve740
Vec03
Vec10

6.4L Diesel, Engine Performance Wiring Diagram (5 of 6) for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Engine Performance Wiring Diagram (5 of 6) for Ford F550 Super Duty 2008:

22

(at intake tube) intake air temperature sensor 2 (iat2) sensor
(at right side of engine) manifold absolute pressure (map) sensor
(at top front of engine) egr valve actuator
(in engine control sensor harness, near breakout to right rear of engine compt)
(in engine control sensor harness, near breakout to right rear of engine compt) s1007
C1906a
C1906b
Computer data lines system
Egr temperature sensor 1 (at top front of engine)
Egr throttle plate valve (at front of engine, on top)
Engine oil temperature (eot) sensor (at top right of engine)
G103 (at right rear of engine compt)
High pressure fuel pump (at rear of intake manifold)
Pressure
Red
S1002 (in engine control sensor harness, near breakout to right rear of engine compt)
S1005
S1006 (in engine control sensor harness, near breakout to right rear of engine compt)
S1013 (in engine control sensor harness, near breakout to front right side of engine, on top)
S114
Turbo charger actuator (at top left side of engine)
Volume

6.4L Diesel, Engine Performance Wiring Diagram (6 of 6) for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Engine Performance Wiring Diagram (6 of 6) for Ford F550 Super Duty 2008:

93

(at lower front left of engine) camshaft position sensor
(at top left rear of engine) fuel injector 6
(at top left side of engine) fuel injector 4
(at top right rear of engine) fuel injector 7
(at top right side of engine) fuel injector 1
(in engine control sensor harness, near breakout to front right side of engine, on top) s1012
Accs
Air conditioning system
C1232e
Cdc10
Cdc15
Ce205
Ce206
Ce207
Ce208
Ce209
Ce210
Ce211
Ce212
Ce316
Ce321
Ce328
Ch421
Cmp +
Cmp -
Cooling fans system
Ebp
Ect
Egr temperature sensor 2 (at top front of engine)
Egt 2
Engine coolant temperature (ect) sensor (at front of engine)
Eot
Exhaust pressure (ep) sensor (at left rear of engine)
Frpi
Frt
Fuel rail pressure sensor (at top right of right valve cover)
Fuel rail temperature sensor (at top right of right valve cover)
Gd119
Ge513
Gencom
Genmon
Gnd
Gpe
Iat 1
Inj 1 +
Inj 1 -
Inj 2 +
Inj 3 +
Inj 4 +
Inj 4 -
Inj 5 +
Inj 6 +
Inj 6 -
Inj 7 +
Inj 7 -
Inj 8 +
Le139
Le423
Lr139
Maf
Maf rtn
Map
Mass air flow (maf) sensor (at left front of engine compt)
Powertrain control module (pcm) (at left side of firewall)
Pp pressure
Pp volume
Re139
Re205
Re208
Re210
Re211
Re230
Re405
Re406
Re429
Red
Ref
Rtn
Sig
Sig rtn
Sigrtn
Starting/ charging system
Ve607
Ve706
Ve716
Ve717
Ve726
Ve727
Ve728
Ve740
Ve803
Ve921
Vref

6.8L

6.8L, Engine Performance Wiring Diagram (1 of 6) for Ford F550 Super Duty 2008

List of elements for 6.8L, Engine Performance Wiring Diagram (1 of 6) for Ford F550 Super Duty 2008:

109

Anti-lock brakes system
App1
App2
App3
Battery junction box (bjb) (at left rear of engine compt)
Boo
C175b
C2280b
Canvnt
Cat15
Cbb71
Cbb76
Ccb08
Cdb08
Cdc12
Ce114
Ce237
Ce239
Ce326
Ce903
Ce904
Ce912
Ce913
Ce914
Ce924
Cet21
Cls05
Cls28
Clutch pedal position switch (m/t) (behind left side of dash, above clutch pedal)
Computer data lines system
Cpp bt
Cpp tt
Cruise control system
Cto
Etcref
Etcrtn
Evap canister vent control solenoid (at left rear side of frame)
Fpc
Fpm
Ftpt
Ftptref
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 30a
Fuse 5a
G103 (at right rear of engine compt)
G106 (at right rear of engine compt)
Gd113
Gd164
Gnd
Heated oxygen sensor (ho2s) 13 (under left front of vehicle)
Ho2s 13
Hot at all times
Hot in run or start
Hs can +
Hs can -
Htr 13
Isp r
Kapwr
Le136
Le137
Le230
Nca
Neutral
Park
Pcm power relay
Pcmrc
Peps
Powertrain control module (pcm) (at left side of firewall)
Pto engage
Pto okay
Pto req
Pto rpm
Re136
Re137
Re407
Res08
Reversing lamp relay
Rlc
S102 (in engine control sensor harness, near breakout to right rear of engine compt)
S154
S158 (in engine control sensor harness, near breakout to left front corner of vehicle)
S162
S227
Sbb36
Sccs
Sccsrtn
Se/smc
Sigrtnc
Smart junction box (on passenger side kick panel)
Tcs
Tow haul switch (at top of steering column)
Vdb04
Vdb05
Ve225
Ve518
Ve701
Ve702
Ve703
Ve745
Ve822
Ve922
Ves10
Vmc05
Vpwr1-a
Vpwr1-b
Vsout
Vss

6.8L, Engine Performance Wiring Diagram (2 of 6) for Ford F550 Super Duty 2008

List of elements for 6.8L, Engine Performance Wiring Diagram (2 of 6) for Ford F550 Super Duty 2008:

50

(in engine control sensor harness, near battery junction box) s156
(in engine control sensor harness, near breakout to left front of frame) s101
(in tail lamps harness, near breakout to cross brace)
(on accelerator pedal support) accelerator pedal position sensor
A/c clutch relay
A/c compressor cycling switch (at right rear of engine compt, on a/c accumulator)
A/c high pressure switch (at right side of engine compt)
Batt
Battery junction box (bjb) (at left rear of engine compt)
Ce515
Ce911
Computer data lines system
Fp pwr
Fpc
Fpm
Fpm rtn
Fuel pump diode
Fuel pump driver module (at left rear frame rail)
Fuel pump module
Fuel pump relay
Fuel tank pressure (ftp) sensor (above left side of rear axle)
Fuse 20a
Fuse 5a
G108 (at left rear of engine compt)
G400 (at left rear of frame)
Gd117
Hot at all times
Hot in run or start
Hs can +
Hs can -
Inertia fuel shutoff (ifs) switch (at right kick panel)
Instrument cluster (ic)
Le230
Md grd
Narrow frame
Nca
Re407
Re515
Rmc32
S115
S123
S401
S406
Sender 1
Sender rtn 2
Ve225
Ve518
Ve922
Vmc11
Wide frame

6.8L, Engine Performance Wiring Diagram (3 of 6) for Ford F550 Super Duty 2008

List of elements for 6.8L, Engine Performance Wiring Diagram (3 of 6) for Ford F550 Super Duty 2008:

66

(in back up lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top) s194
Anti-lock brakes system
C175t
Cca10
Cca15
Cdc35
Cdc38
Ce233
Ce234
Cet05
Cet06
Cet07
Cet08
Cet09
Cet22
Cet25
Cet49
Cet50
Crank
Heated oxygen sensor (ho2s) 22 (at left side of transmission)
Ho2s 12
Ho2s 22
Htr 12
Htr 22
Ignition transformer capacitor 1 (at top right front of engine)
Iss
Le111
Oss
Output shaft speed (oss) sensor (at top of transmission extension housing)
Pc-a
Pca
Powertrain control module (pcm) (at left side of firewall)
Re406
Ret04
Ret24
S196
Sig rtn
Sigrtnt
Smr/start
Speed sensor assembly (at top left side of transmission)
Sspc a
Sspc b
Sspc c
Sspc d
Sspc e
Sspc-a
Sspc-b
Sspc-c
Sspc-d
Sspc-e
Starting/ charging system
Tcc
Tft
Torqshift transmission
Tr p
Tr-p
Tracs
Tracsil
Tss
Vbpwr
Ve730
Ve733
Ve744
Vet27
Vet33
Vpwr

6.8L, Engine Performance Wiring Diagram (4 of 6) for Ford F550 Super Duty 2008

List of elements for 6.8L, Engine Performance Wiring Diagram (4 of 6) for Ford F550 Super Duty 2008:

15

(at top of left valve cover) coil on plugs (cop) 6, 7, 8 & 9
(at top of right side valve cover) coil on plugs (cop) 1, 2, 3 & 4
(in backup lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top) s183
(in engine control sensor & fuel charge harness, near breakout to front left side of engine, on top)
(in engine control sensor & fuel charge harness, near breakout to rear left side of engine, on top) s136
Fuel injectors 1,2,3,4 & 5 (1,2 & 5: at top right side of engine) (3 & 4: at top right rear of engine)
Fuel injectors 6,7,8 & 10 (6 & 7: at top left side of engine) (8: at top left rear of engine) (10: at top left of engine)
Heated oxygen sensor (ho2s) 12 (at rear of catalytic converter)
Nca
Plug spark
S127 (in engine control sensor & fuel charge harness, near rear right side of engine, on top)
S132 (in engine control sensor & fuel charge harness, near breakout to front right side of engine, on top)
S135
S181
Spark plug

6.8L, Engine Performance Wiring Diagram (5 of 6) for Ford F550 Super Duty 2008

List of elements for 6.8L, Engine Performance Wiring Diagram (5 of 6) for Ford F550 Super Duty 2008:

13

(at front of right cylinder bank) camshaft position sensor 1
(at right rear of cylinder head) dual knock sensor
(at top of left valve cover) coil on plugs (cop) 10
(at top of right valve cover) coil on plugs (cop) 5
Crankshaft position sensor (on lower front center of engine)
Cylinder head temperature sensor (on right cylinder head)
Fuel injector (at top left of engine)
Fuel rail pressure/ temperature sensor (at top left of intake manifold)
Ignition transformer capacitor 2 (at top front of left cylinder head)
Nca
S133 (in engine control sensor & fuel charge harness, near breakout to front right side of engine, on top)
S134 (in engine control sensor & fuel charge harness, near breakout to front right side of engine, on top)
Spark plug

6.8L, Engine Performance Wiring Diagram (6 of 6) for Ford F550 Super Duty 2008

List of elements for 6.8L, Engine Performance Wiring Diagram (6 of 6) for Ford F550 Super Duty 2008:

125

(in engine control sensor & fuel charge harness, near breakout to rear left side of engine, on top)
Accr
Accs
Bps
Brake pressure switch (at bottom of master cylinder)
C175e
Cac09
Cd 1
Cd 10
Cd 2
Cd 3
Cd 4
Cd 5
Cd 6
Cd 7
Cd 8
Cd 9
Ce132
Ce205
Ce206
Ce207
Ce208
Ce209
Ce210
Ce211
Ce212
Ce213
Ce214
Ce235
Ce236
Ce303
Ce304
Ce305
Ce306
Ce307
Ce308
Ce309
Ce310
Ce311
Ce312
Ce316
Ce412
Ce426
Ce608
Ces09
Ch302
Ch421
Cht
Ckpn
Ckpp
Cmp 1
De706
Drain
Etcref1
Etcrtn1
Evap canister purge valve (at right rear of engine compt)
Evmv
Frp
Frt
G103 (at right rear of engine compt)
Gnd
Heated oxygen sensor (ho2s) 11 (on right exhaust manifold)
Heated oxygen sensor (ho2s) 21 (on left exhaust manifold)
Ho2s 11
Ho2s 21
Htr 11
Htr 21
Iat
Ilc
Imtv
Inj 1
Inj 10
Inj 2
Inj 3
Inj 4
Inj 5
Inj 6
Inj 7
Inj 8
Inj 9
Injpwrm
Intake manifold tuning valve (imtv) (at top right of engine)
Ks 1+
Ks 1-
Ks 2+
Ks 2-
Le423
Le428
Maf
Mafrtn
Mass air flow (maf) sensor (at left front of engine compt)
Nca
Powertrain control module (pcm) (at left side of firewall)
Re135
Re320
Re323
Re324
Re405
Re427
S107
S114
S155
Sigtne
Solid state
Starting/ charging system
Tacm n
Tacm p
Throttle position (tps) sensor (at top center of engine)
Tp 1 ns
Tp 2 ps
Ve706
Ve711
Ve712
Ve727
Ve728
Ve735
Ve737
Ve740
Ve801
Ve802
Ve807
Ve818
Ve819
Vpwr
Vrefe

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Backup Lamps Wiring Diagram for Ford F550 Super Duty 2008:

41

(at left rear of engine compt) g104
(at left rear of frame) g400
(at left side of firewall) (gas) powertrain control module (pcm)
(at rear of transfer case) (diesel) transmisson control module (tcm)
(in engine control sensor harness, near breakout to master cylinder) s109
(in engine control sensor harness, near breakout to right rear of engine compt) s1777
(in main harness, near breakout behind left side of dash) s237
(in tail lamps harness, near breakout to left rear of vehicle) (late production) s414 (in tail lamps harness, in breakout to left rear of frame) (early production) s403
(in tail lamps harness, near breakout to left rear of vehicle) s414
A/t
Battery junction box (at left rear of engine compt)
C175b
Cls10
Cls28
Early production
Electrochromatic inside mirror unit (at center of front windshield)
Fuse 15a
Fuse 20a
Fuse 5a
G400 (at left rear of frame)
Hot at all times
Hot w/ pcm relay energized
Late production
Left rear lamp
Left reversing lamp
M/t
Parking aid module (pam) (at right kick panel)
Powertrain control module (pcm) (gas) (at left side of firewall)
Red
Reversing lamp relay
Reversing lamps switch (on top left side of transmission)
Right rear lamp
Right reversing lamp
Rlc
S113
S400
S411
S413
Trailer tow connector (at left side of rear bumper)
W/ box
W/o box

Exterior Lamps Wiring Diagram, with Box (1 of 2) for Ford F550 Super Duty 2008

List of elements for Exterior Lamps Wiring Diagram, with Box (1 of 2) for Ford F550 Super Duty 2008:

63

(at left rear of engine compt) g104
(behind center of dash, behind audio control module) g203
1) full left 2) lane change 3) neutral 4) lane change 5) full right
Battery junction box (bjb) (at left rear of engine compt)
Boo
Brake pedal position switch (behind left side of dash, above brake pedal)
C1232b
C175b
C2280b
C2280d
C2280f
C281b
Ccb08
Cls43
Diesel
Driver side exterior rear view mirror
Four-wheel drive control module (behind right side of dash)
Fuse 15a
Fuse 20a
Fuse 5a
G104 (at left rear of engine compt)
G108 (at left rear of engine compt)
G302 (in right "a" pillar)
Gas
Haz
Hazard
High mounted stoplamp
Hot at all times
Interior lights system
Left front park/turn lamp
Left turn trailer tow relay
Lf turn lp
Lp/lh mir
Lp/rh mir
Lr stop turn lp
Lts
Micro
Multi-function switch
Parking lamp trailer tow relay
Passenger side exterior rear view mirror
Powertrain control module (pcm) (at left side of firewall)
Rf turn lp
Right front park/turn lamp
Right turn trailer tow relay
Rr stop turn lp
Rts
S106 (in engine control sensor harness, near breakout to left front of frame)
S110 (in engine control sensor harness, near breakout to left front corner of vehicle)
S111 (in engine control sensor harness, near breakout to left front corner of vehicle)
S112 (in engine control sensor harness, near breakout to master cylinder)
S113
S115
S211 (in main harness, near breakout behind audio control module)
S229 (in main harness, near breakout behind audio control module)
S235
S323
S329 (in body main harness, under driver seat)
S501
S639
Smart junction box (sjb) (behind passenger side kick panel)
Stop lamp relay
Trailer brake control (tbc) module (behind center of dash)
Turn signal

Exterior Lamps Wiring Diagram, with Box (2 of 2) for Ford F550 Super Duty 2008

List of elements for Exterior Lamps Wiring Diagram, with Box (2 of 2) for Ford F550 Super Duty 2008:

50

(at left rear of frame) g400
(in engine control sensor harness, near breakout to left rear of engine compt) s121
(in left marker lamp (pia) harness, in breakout to left rear of vehicle) s423
(in marker lamp-to-switch harness, near front of roof) s906
1) auto 2) off 3) park 4) head 5) fog
Autolamp on
C2280b
C2280d
C2280e
Center roof marker lamp
Fog lamp
Fuse 15a
G104 (at right rear of engine compt)
G108 (at left rear of engine compt)
G203 (behind center of dash, behind audio control module)
G400 (at left rear of frame)
Headlamp
Headlamp off
Hot at all times
Left center roof marker lamp
Left license plate lamp
Left rear park/stop turn lamp
Left rear side lamp 1 (w/ dual rear wheels)
Left rear side lamp 2 (w/ dual rear wheels)
Left roof marker lamp
Left side marker lamp
Main light switch
Micro
Park lamp relay
Parklamp on
Rear marker lamp assemblly (w/ dual rear wheels)
Right center roof marker lamp
Right license plate lamp
Right rear park/stop turn lamp
Right rear side lamp 1 (w/ dual rear wheels)
Right rear side lamp 2 (w/ dual rear wheels)
Right roof marker lamp
Right side marker lamp
S113
S128
S235
S402 (in tail lamps harness, in breakout to left rear of frame)
S411
S412 (in backup alarm jumper harness, in breakout to left rear of vehicle)
S413
S424 (in right marker lamp (pia) harness, in breakout to left rear of frame)
S426
S905
S906 (in marker lamp-to-switch harness, near front of roof)
Smart junction box (sjb) (on passenger side kick panel)

Exterior Lamps Wiring Diagram, without Box (1 of 2) for Ford F550 Super Duty 2008

List of elements for Exterior Lamps Wiring Diagram, without Box (1 of 2) for Ford F550 Super Duty 2008:

61

(at left rear of engine compt) g104
(behind center of dash, behind audio control module) g203
1) full left 2) lane change 3) neutral 4) lane change 5) full right
Battery junction box (bjb) (at left rear of engine compt)
Boo
Brake pedal position switch (behind left side of dash, above brake pedal)
C1232b
C175b
C2280b
C2280d
C2280f
C281b
Ccb08
Cls43
Diesel
Driver side exterior rear view mirror
Four-wheel drive control module (behind right side of dash)
Fuse 15a
Fuse 20a
Fuse 5a
G104 (at left rear of engine compt)
G108 (at left rear of engine compt)
G302 (in right "a" pillar)
Gas
Haz
High mounted stoplamp
Hot at all times
Interior lights system
Left front park/turn lamp
Left turn trailer tow relay
Lf turn lp
Lp/lh mir
Lp/rh mir
Lr stop turn lp
Lts
Micro
Multi-function switch
Parking lamp trailer tow relay
Passenger side exterior rear view mirror
Powertrain control module (pcm) (at left side of firewall)
Rf turn lp
Right front park/turn lamp
Right turn trailer tow relay
Rr stop turn lp
Rts
S106 (in engine control sensor harness, near breakout to left front of frame)
S110 (in engine control sensor harness, near breakout to left front corner of vehicle)
S111 (in engine control sensor harness, near breakout to left front corner of vehicle)
S112 (in engine control sensor harness, near breakout to master cylinder)
S113
S115
S211 (in main harness, near breakout behind audio control module)
S229 (in main harness, near breakout behind audio control module)
S235
S323
S329 (in body main harness, under driver seat)
S501
S639
Smart junction box (sjb) (on passenger side kick panel)
Stop lamp relay
Trailer brake control (tbc) module (behind center of dash)

Exterior Lamps Wiring Diagram, without Box (2 of 2) for Ford F550 Super Duty 2008

List of elements for Exterior Lamps Wiring Diagram, without Box (2 of 2) for Ford F550 Super Duty 2008:

39

(early production)
(in engine control sensor harness, near breakout to left rear of engine compt) s121
(in marker lamp-to-switch harness, near front of roof) s906
(late production)
(late production) s413
Autolamp on
Backup lamps circuit
C2280b
C2280d
C2280e
Center roof marker lamp
Fog lamp
Fuse 15a
G104 (at right rear of engine compt)
G108 (at left rear of engine compt)
G203
G203 (behind center of dash, behind audio control module)
G400 (at left rear of frame)
Headlamp
Headlamp off
Hot at all times
Left center roof marker lamp
Left rear lamp
Left roof marker lamp
Left side marker lamp
Main light switch 1) auto 2) off 3) park 4) head 5) fog
Micro
Park lamp relay
Parklamp on
Right center roof marker lamp
Right rear lamp
Right roof marker lamp
Right side marker lamp
S113
S128
S235
S400 (early production)
S403 (in tail lamps harness, in breakout to left rear of frame) s412 (in backup alarm jumper harness, in breakout to left rear of vehicle)
Smart junction box (on passenger side kick panel)

Trailer/Camper Adapter Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Trailer/Camper Adapter Wiring Diagram for Ford F550 Super Duty 2008:

59

(at left rear of frame) g400
(behind center of dash, behind audio control module)
(not used)
(not used) c2142
B+brake
Backup lamps circuit
Battery charge trailer tow relay
Battery junction box (bjb) (at left rear of engine compt)
Boo
Bpt sens
Bpt+
Bpt-
Brake control module
Brake pressure transducer (at left rear of engine compt)
C2142
C2280b
Cat19
Cbp33
Cls43
Computer data lines system
Control module
Exterior lights circuit
Fuse 10a
Fuse 25a
Fuse 30a
G104 (at left rear of engine compt)
G203
G400 (at left rear of frame)
Gd115
Gnd
Hot at all times
Hot in on or start
Hs can+
Hs can-
Lca16
Left turn trailer tow relay
Parking lamp trailer tow relay
R/s
Rca16
Red
Right turn trailer tow relay
S113
S203 (behind center of dash, behind
S225
S400
Sbb05
Smart junction box (sjb) (on passenger side kick panel)
Tbc out
Trailer brake control (tbc) module (behind center of dash)
Trailer tow connector
Vca13
Vdb04
Vdb05
W/ narrow frame
W/ trailer
W/ trailer brake
W/ trailer brake control module
W/ wide frame
W/o trailer brake control module

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Ford F550 Super Duty 2008

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Ford F550 Super Duty 2008:

43

(5.4l) charge motion control valve
(6.8l) intake manifold tuning valve (imtv)
(at left rear of engine compt) battery junction box (bjb)
(diesel) battery
(diesel) transmission control module (tcm)
(gasoline) battery
Battery ii
C1232b
C175b
Clutch pedal position switch
Data link connector (dlc)
Diesel
Driver safety belt buckle switch
Dual pressure switch
Dvd player
Egr throttle plate valve
G100 (at right front inner fender, near battery)
G100 (on right front inner fender, near battery)
G101 (5.4l: at rear left side of engine, on bottom) (6.8l: at rear right side of engine, on bottom)
G101 (on right front side of engine)
G102 (5.4l: at front right side of engine, on bottom) (6.8l: at right front of engine compt, under battery)
G102 (on right front inner fender, under battery)
G103 (at right rear of engine compt)
G106 (at right rear of engine compt)
G107 (on left side frame rail, near middle of transmission)
G109 (on frame, at left front of engine compt)
G116 (on left side frame rail, near middle of transmission)
G301 (regular cab: in left rear "b" pillar) (super cab: in left "b" pillar) (crew cab: in left "c" pillar)
G303 (at center of cab floor)
Gasoline
Mass air flow/intake air temperature (maf/iat) sensor
Nca
Passenger air bag deactivation (pad) switch
Powertrain control module (pcm)
Run/start relay
S114 (5.4l: in engine control sensor & fuel charge harness, near breakout to rear right side of engine, on top) (6.8l: in engine control sensor & fuel charge harness, near breakout to rear left side of engine, on top)
S114 (in engine control sensor harness, near breakout to front right side of engine, on top)
S162 (in engine control sensor harness, near breakout to right rear of engine compt)
S190 (in backup lamp switch to rear lamp feed harness, near breakout to left side frame rail, near middle of transmission)
S191 (in backup lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top)
S316 (in body main harness, near breakout under driver seat)
Subwoofer amplifier
Turbo charger actuator

Ground Distribution Wiring Diagram (2 of 5) for Ford F550 Super Duty 2008

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Ford F550 Super Duty 2008:

48

(a/t) fuel pump
(at left rear of engine compt) battery junction box (bjb)
(gas w/ m/t) reversing lamp switch
(gasoline) fuel pump relay
87a
A/c clutch diode
A/c clutch solenoid
Air filter sensor
Anti-lock brake system (abs) module
Audio control module (acm)
Brake fluid level switch
C240a
Diesel
Engine compartment lamp
Fuel pump
G104 (at left rear of engine compt)
G108 (at left rear of engine compt)
G111 (5.4l: at rear left side of engine, on top) (6.8l: at engine control fuel charge, near breakout to c115)
G112 (5.4l: at front right side of engine, on top) (6.8l: at right rear of engine compt)
G135 (at left front of frame)
G201 (behind center of dash, behind audio control module)
Hi to low relay
Horn
Left fog lamp
Left front park/turn lamp
Left headlamp
Left side marker lamp
Low to hi relay
Reversing lamps switch
Right fog lamp
Right front park/turn lamp
Right headlamp
Right side marker lamp
S1119 (in fog lamp jumper harness, near left front corner of vehicle)
S113 (in engine control sensor harness, near breakout to left front of frame)
S115 (in engine control sensor harness, near breakout to left front corner of vehicle)
S119 (in engine control sensor harness, near breakout to left front corner of vehicle)
S128 (in engine control sensor harness, in breakout to master cylinder)
S199 (m/t) (in backup lamp switch to rear lamp feed harness, near breakout to left rear of engine compt)
Satellite digital audio receiver (sdars) module
Stoplamp relay
Trailer tow relay battery charge
Trailer tow relay left turn
Trailer tow relay parking lamp
Trailer tow relay right turn
Vacuum pump
Windshield washer pump motor
Windshield wiper motor

Ground Distribution Wiring Diagram (3 of 5) for Ford F550 Super Duty 2008

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Ford F550 Super Duty 2008:

54

(at right side of dash) upfitter relay box
4x4 control module
Adjustable pedal switch
Audio control module (acm)
Audio/climate control switch
Behind left side of dash)
Blower motor control module
Brake shift interlock
C218a
C218b
C2357b
C281b
Cigar lighter
Clockspring (in steering column)
Data link connector
Eatc
Except eatc
Four- wheel driver switch
Front blower motor resister assembly
Fuel tank selector switch
G202 (behind center of dash, behind audio control module)
G203 (behind center of dash, behind audio control module)
G204 (behind center of dash, behind audio control module)
Horn switch
Hvac-emtc
Instrument panel power point
Left center roof marker lamp
Left roof marker lamp
Left vanity mirror lamp
Main light switch
Massage center module switch
Multi-function switch
Parking aid disable switch
Power mirror fold relay
Power sliding rear window switch
Radio opening)
Right center roof marker lamp
Right roof marker lamp
Right vanity mirror lamp
Roof opening panel module
Roof opening panel switch
S235 (in main harness, near breakout behind left side of dash)
S247 (in body main harness, near breakout behind left side of dash)
S249 (in relay feed harness, behind glove box)
S905 (in marker lamp-to-switch harness, near front of roof)
S910 (in interior lamp feed harness, near right "a" pillar)
Steering wheel/ speed control switch
Traction control switch
Trailer brake control (tbc) module
Upfitter relay 1
Upfitter relay 2
Upfitter relay 3
Upfitter relay 4
Upfitter switch

Ground Distribution Wiring Diagram (4 of 5) for Ford F550 Super Duty 2008

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Ford F550 Super Duty 2008:

66

(crew cab)
(early production) electro- chromatic inside mirror unit
(except w/ roof opening panel) front interior/ map lamps assembly
(late production) electro- chromatic inside mirror unit
(on passenger side kick panel) smart junction box (sjb)
(regular & super cab)
Autolamp sensor
Autolamp/ sunload sensor
C2280d
C228a
C2357a
C341a
C341b
C341c
C921b
Circuit deactivation ignition module (cdim)
Compass sensor module
Driver seat module (dsm)
Driver side door lock switch
Driver side exterior rear view mirror
Driver side front door ajar switch
Driver side rear door ajar switch
Driver side seat control switch
Early production
Eatc
Except eatc
Exterior rear view mirror switch
Front console power point
Front passenger side door ajar switch
G300 (crew cab & regular cab: in left "a" pillar) (super cab: behind left side of dash)
G302 (in right "a" pillar)
G304 (in right "a" pillar)
High mounted stoplamp
Hvac- eatc
Hvac- emtc
Instrument cluster (ic)
Keypad switch assembly
Late production
Left front seat back rest heater mat
Master window control switch
Memory seat switch
Park brake switch
Parking aid disable switch
Parking aid module (pam)
Passenger side door lock switch
Passenger side exterior rear view mirror
Passenger side seat control switch
Passive anti-theft transceiver
Rear console power point
Rear interior/ map lamps assembly
Rear passenger side door ajar switch
Right front seat back rest heater mat
Roof opening panel module
S185 (in engine compt harness, in breakout near master cylinder)
S224 (in main harness, near breakout behind left side of dash, left of radio opening)
S308 (regular cab: in body main harness, near breakout to left "b" pillar) (super cab: in body main harness, near breakout to right "a" pillar)
S323 (crew cab: in body main harness, near breakout across floor) (super cab: in body main harness, near breakout to left rear of cab)
S326 (crew cab: in body main harness, near breakout to left "a" pillar) (super cab: in body main harness, near breakout behind left side of dash)
S338 (in driver seat feed jumper harness, under driver seat)
S339 (in passenger seat feed jumper harness, under passenger seat)
S501 (in left front door harness, near breakout to driver door)
S639 (in right front door harness, in breakout to passenger door)
S907 (in interior lamp feed harness, near right "a" pillar)
Telescoping exterior rear view mirror switch
Video camera
Windshield wiper motor

Ground Distribution Wiring Diagram (5 of 5) for Ford F550 Super Duty 2008

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Ford F550 Super Duty 2008:

33

Breakout to left rear of frame)
Breakout under center console) (regular cab: in body main harness, near breakout to center of cab floor, near rear of cab)
Driver fuel pump module
G400 (at left rear of frame)
G401 (at left rear of frame)
Gasoline
Left front running board lamp
Left license plate lamp
Left rear lamp
Left rear running board lamp
Left rear side lamp 1
Left rear side lamp 2
Left reversing lamp
Nca
Rear marker lamp assembly
Right front running board lamp
Right license plate lamp
Right rear lamp
Right rear park/stop/ turn lamp
Right rear running board lamp
Right rear side lamp 1
Right rear side lamp 2
Right reversing lamp
S400 (in tail lamps harness, in breakout to left rear of fram)
S411 (in tail lamps harness, in breakout to rear of vehicle)
S413 (in tail lamps harness, in breakout to left rear of vehicle)
S905 (in marker lamp-to-switch harness, near front of roof)
Shield
Trailer tow connector
W/ box
W/ dual rear wheels
W/ running board light
W/o box

HEADLIGHTS

Headlights Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Headlights Wiring Diagram for Ford F550 Super Duty 2008:

59

(in fog lamp jumper harness, near left front corner of vehicle) s142
Air conditioning system
Autolamp in
Autolamp on
Autolamp sensor
Autolamp/sunload sensor (behind center of dash)
Autolamps w/ automatic climate control
Autolamps w/o automatic climate control
C1232b
C2280a
C2280b
C2280c
C2280e
Computer data lines system
Control solid state
Flash to pass
Fog lamp
Fog lamp ind
Fog lamp relay
Ftp
Fuse 21 15a
Fuse 23 15a
Fuse 7 10a
Fuse 8 10a
G104 (at left rear of engine compt)
G108 (at left rear of engine compt)
G203 (behind center of dash, behind audio control module)
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
Headlamp off
Headlamp on
Hi beam
High beam relay
Hot at all times
Instrument cluster (ic)
Interior lights system
Left fog lamp
Left headlamp
Left low beam (fet)
Main light switch 1) auto 2) off 3) park 4) head 5) fog
Micro
Ms can+
Ms can-
Multi- function switch
Park brake
Parking brake switch (behind left side of dash, on park brake assembly)
Parklamp on
Powertrain control module (pcm) (diesel) (at left side of firewall)
Right fog lamp
Right headlamp
Right low beam (fet)
S113
S119
S122 (in engine control sensor harness, near breakout to right front of engine compt)
S128
S224
S235
S304 (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat)
S326
Smart junction box (sjb) (on passenger side kick panel)

HORN

Horn Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Horn Wiring Diagram for Ford F550 Super Duty 2008:

17

(behind center of dash, behind audio control module) g202
C218a
C218b
C2280b
C2280e
Clockspring (on steering column)
Fuse 20a
G108 (at left rear of engine compt)
Ground distribution system
Horn (at right front of vehicle)
Horn relay
Horn switch
Hot at all times
Micro
S115
S239
Smart junction box (on passenger side kick panel)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008

List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008:

79

(in main harness, behind right side of dash, right of radio opening)
(super cab: behind left side of dash) (except super cab: in left "a" pillar) g300
4x4 high
4x4 low
Air filter minder sw
Anti-theft system
C218a
C2280a
C2280b
Cbp31
Cbp36
Ccf06
Ccf22
Ce927
Ce929
Cet52
Cmc24
Cmc29
Compass mod +
Compass mod -
Compass sensor module (early production) (at top center of front windshield)
Computer data lines system
Electrochromatic inside mirror unit (late production) (at center of front windshield)
Engine controls system
Epats rx
Epats tx
Fuel sender 1
Fuel sender 2
Fuel sender rtn 2
Fuel tank select
Fuel tank selector switch (diesel w/ dual fuel tank)
Fuse 10a
Fuse 5a
G203 (behind center of dash, behind audio control module)
Gd133
Gnd
Hot at all times
Hot in run or start
Hs can +
Hs can -
Info
Instrument cluster (ic)
Interior lights system
Logic gnd
Message center module switch
Ms can +
Ms can -
Msg ctr +
Msg ctr -
Ops
Park detect
Pwr
R/s
Reset
Rmc27
Rmc32
Rmc33
S223
S224
S235
S245
S326
Sbp26
Secondary fuel tank sensor (diesel w/ dual fuel tank)
Setup
Shift interlock system
Smart junction box (on passenger side kick panel)
Vdb04
Vdb05
Vdb06
Vdb07
Vmc11
Vmc23
Vmc30
Vmc31
Vrt23
Vrt24
W/ video camera
W/o video camera

Instrument Cluster Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008

List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008:

50

(in main harness, near breakout behind audio control module) s209
(in right "a" pillar) g302
(super cab: in body main harness, near breakout under passenger seat) (regular cab: in body main harness, near breakout to right "b" pillar) s304
4h lamp
4l lmap
Air filter sensor (diesel) (at left side of engine compt)
Ajar
Brake fluid level switch (on brake fluid reservoir)
C1232b
C2280b
C2280c
C2280f
C281a
Ccf06
Ccf22
Cmc25
Diesel
Driver side front door ajar switch (in driver door)
Driver side rear door ajar switch (in left rear door)
Four-by-four high/low indicator switch (at top of transfer case)
Four-wheel drive control module (behind right side of dash)
Fuel pump module
Fuel tank sensor
G104 (at left rear of engine compt)
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
G302 (in right "a" pillar)
Gas
Med can
Micro
Narrow frame
Nca
Oil pressure switch (diesel: at top center of engine) (5.4l: on left front of engine (6.8l: at lower left side of engine)
Parking brake switch (behind left side of dash, on park brake assembly)
Passenger side front door ajar switch (in front passenger door)
Passenger side rear door ajar switch (in right rear door)
Pbpp
Powertrain control module (pcm) (diesel) (at left side of firewall)
Primary fuel tank sensor (dual fuel tank)
S113
S205 (in main harness, near breakout to right side of hvac housing)
S308
S323
S326
S501
S639
Sense
Smart junction box (sjb) (on passenger side kick panel)
W/ esof
W/o esof
Wide frame

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Courtesy Lamps Wiring Diagram for Ford F550 Super Duty 2008:

65

(in body main harness, near breakout to right "a" pillar) s307
(in interior lamp feed harness, near right "a" pillar) s908
(in interior lamp feed harness, near right "a" pillar) s909
(in main harness, near breakout behind audio control module) s214
(in right "a" pillar) g302
(super cab: in body main harness, near breakout under passenger seat) (regular cab: in body main harness, near breakout to center of cab floor, near rear of cab) (crew cab: in body main harness, near breakout under center console) (in body main harness, near breakout to front of right running board) s312
Ajar
Battery saver relay
C2280a
C2280b
C2280c
C2280d
C921b
Cln03
Cln09
Dim
Dim sw
Dim sw gnd
Dome
Dome lp
Driver side front door ajar switch (in driver door)
Driver side rear door ajar switch (in left rear door)
Engine compartment lamp
Exterior lights system
Front interior/map lamps assembly (w/ crew cab or w/o roof opening panel)
Fuse 10 15a
Fuse 25 10a
Fuse 9 15a
G104 (at left rear of engine compt)
G203 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
G400 (at left rear of frame)
Gd179
High mounted stoplamp
Hot at all times
Instrument panel dimmer switch
Interior lighting (fet)
Left front running board lamp
Left rear running board lamp
Left vanity mirror lamp
Micro
Passenger side front door ajar switch (in front passenger door)
Passenger side rear door ajar switch (in right rear door)
Puddle lamp (fet)
Right front running board lamp
Right rear running board lamp
Right vanity mirror lamp
Roof opening panel module (w/ roof opening panel) (at rear of roof)
S113
S308
S311
S313
S323
S328 (crew cab: in body main harness, near breakout to left "a" pillar) (super cab: in in body main harness, near breakout behind left side of dash)
S3325 (w/ running board lamps) (in body main harness, near breakout to right "a" pillar)
S410 (in tail lamps harness, in breakout to left middle of frame)
S501
S639
S907
S910
Sense
Smart junction box (sjb) (on passenger side kick panel)
W/ crew cab or w/o roof opening panel)
W/ roof opening panel
W/ running board lamps

Instrument Illumination Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Instrument Illumination Wiring Diagram for Ford F550 Super Duty 2008:

61

(at center of front windshield) electrochromatic inside mirror unit
(behind center of dash, behind audio control module) g203
(in main harness, near breakout behind audio control module) s214
(in main harness, near breakout behind audio control module) s220
1) auto 2) off 3) park 4) head 5) fog
Adjustable pedal switch
Audio control module (acm)
Audio/climate control switch
Autolamp on
Backlighting led (fet)
C218b
C2280b
C2280d
C240a
Clockspring (in steering column)
Dim
Dim sw
Dim sw gnd
Dome
Dome lp
Driver side door lock switch
Flash to pass
Fog lamp
Fog lamp ind
Four wheel drive switch
Ftp
Fuse 10 15a
Fuse 41 15a
G202 (behind center of dash, behind audio control module)
G203 (behind center of dash, behind audio control module)
G204 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
Gd115
Headlamp off
Headlamp on
Headlights system
Hi beam
Hot at all times
Hot w/ accessory delay relay energized
Instrument panel dimmer switch
Main light switch
Message center module switch
Micro
Multi-function switch
Parking aid disable switch
Parklamp on
Passenger side door lock switch
Power sliding rear window switch
Roof panel opening switch
S225
S235
S239
S301 (crew cab: in body main harness, near breakout across floor) (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat)
S501
S639
S910
Smart junction box (sjb) (on passenger side kick panel)
Steering wheel/ speed control switch
Traction control switch
Upfitter switch
Vln04

MEMORY SYSTEMS

Adjustable Pedal Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Adjustable Pedal Wiring Diagram for Ford F550 Super Duty 2008:

38

Adjustable pedal assembly (in driver footwell)
Adjustable pedal switch
C2280a
C341c
Cpp01
Cpp02
Cpp09
Cpp10
Cps14
Cps15
Cps16
Cps55
Driver seat module (under driver seat)
Early production
Eff feed
Far
Forward sw
Fuse 15a
G203 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
Hot at all times
Interior lights system
Late production
Mem ind led
Mem recall 1
Mem recall 2
Mem set sw
Memory set switch
Mtr forward
Near
Pedal mtr aft
Rearward sw
Rpp06
S228
S501
Smart junction box (on passenger side kick panel)
Sns ret
Vpp16

Driver"s Memory Seat Wiring Diagram, Early Production for Ford F550 Super Duty 2008

List of elements for Driver"s Memory Seat Wiring Diagram, Early Production for Ford F550 Super Duty 2008:

129

(except super cab: in left "a" pillar) (super cab: behind left side of dash) g300
(in body main harness, near breakout to right "a" pillar) s334
(in right "a" pillar) g302
Adjustable pedal circuit
Battery junction box (bjb) (at left rear of engine compt)
C2280d
C341a
C341b
C341c
C341d
C357
C372
C373
C383
Computer data lines system
Cpm16
Cpm17
Cpm20
Cpm21
Cpm23
Cpm26
Cpm27
Cpm28
Cpm29
Cpm31
Cpm32
Cpm33
Cpm34
Cpp01
Cpp02
Cpp09
Cpp10
Cps01
Cps02
Cps03
Cps04
Cps05
Cps06
Cps14
Cps15
Cps16
Cps23
Cps24
Cps25
Cps26
Cps27
Cps28
Cps55
Driver seat module (under driver seat)
Driver side seat control switch
Drv mirr horz
Drv mirr vert
Eff feed
Eff sns ret
Forward sw
Front up/ down
Front up/down
Frt tilt dn sw
Frt tilt mtr dn
Frt tilt mtr up
Frt tilt up sw
Fuse 30a
Fuse 7.5a
Fwd/ back
G302 (in right "a" pillar)
Gd133
Gd179
Hall eff sn
Horz base aft
Horz base eff
Horz base fore
Horz fwd/ rwd
Hot at all times
Left power seat motor assembly (in driver seat bottom)
Logic
Logic gnd
Lpm30
Mc can+
Mem ind led
Mem recall 1
Mem recall 2
Mem set sw
Memory mirrors circuit
Memory set switch
Mirr com sw
Mirr horz pot
Mirr pot feed
Mirr pot ret
Mirr vert pot
Ms can-
Mtr forward
Mtr horz left
Mtr horz right
Mtr vert dn
Mtr vert up
Pass mirr horz
Pass mirr vert
Pedal mtr aft
Pwr gnd
Rear tilt eff
Rear tilt mtr
Rear up/ down
Rear up/down
Rearward sw
Rpm30
Rpp06
Rps13
Rr tilt dn sw
Rr tilt mtr up
Rr tilt up sw
S317
S326
S338
S501
Sbb45
Sbp12
Seat hall eff
Smart junction box (on passenger side kick panel)
V batt
Vdb06
Vdb07
Vpm35
Vpm36
Vpm37
Vpm38
Vpp16
Vps09
Vps10
Vps11

Driver"s Memory Seat Wiring Diagram, Late Production for Ford F550 Super Duty 2008

List of elements for Driver"s Memory Seat Wiring Diagram, Late Production for Ford F550 Super Duty 2008:

126

(except super cab: in left "a" pillar) (super cab: behind left side of dash)
(in body main harness, near breakout to right "a" pillar) s334
Adjustable pedal circuit
Battery junction box (bjb) (at left rear of engine compt)
C2280d
C341a
C341b
C341c
C341d
C357
C372
C373
C383
Computer data lines system
Cpm03
Cpm06
Cpm16
Cpm17
Cpm20
Cpm21
Cpm23
Cpm28
Cpm29
Cpm33
Cpm34
Cpp01
Cpp02
Cpp09
Cpp10
Cps01
Cps02
Cps03
Cps04
Cps05
Cps06
Cps14
Cps15
Cps16
Cps23
Cps24
Cps25
Cps26
Cps27
Cps28
Cps55
Driver seat module (under driver seat)
Driver side seat control switch
Drv mirr horz
Drv mirr vert
Eff sns ret
Forward sw
Front up/ down
Front up/down
Frt tilt dn sw
Frt tilt eff
Frt tilt mtr dn
Frt tilt mtr up
Frt tilt up sw
Fuse 30a
Fuse 7.5a
Fwd/ back
G300
G302 (in right "a" pillar)
Gd133
Gd179
Hall eff feed
Horz base aft
Horz base eff
Horz base fore
Horz fwd/ rwd
Hot at all times
Left power seat motor assembly (in driver seat bottom)
Logic
Logic gnd
Lpm30
Mem ind led
Mem recall 1
Mem recall 2
Mem set sw
Memory mirrors circuit
Memory set switch
Mirr com sw
Mirr horz pot
Mirr pot feed
Mirr pot ret
Mirr vert pot
Ms can +
Ms can -
Mtr forward
Mtr horz right
Mtr ver up
Mtr vert dn
Pass mirr horz
Pass mirr vert
Pedal mtr aft
Pwr gnd
Rear tilt eff
Rear tilt mtr up
Rear up/ down
Rear up/down
Rearward sw
Rpm30
Rpp06
Rps13
Rr tilt dn sw
Rr tilt mtr dn
Rr tilt up sw
S317
S326
S338
S501
Sbb45
Sbp12
Seat hall eff
Smart junction box (on passenger side kick panel)
V batt
Vdb06
Vdb07
Vpm35
Vpm36
Vpm37
Vpm38
Vpp16
Vps09
Vps10
Vps11

Memory Mirrors Wiring Diagram, Early Production (1 of 2) for Ford F550 Super Duty 2008

List of elements for Memory Mirrors Wiring Diagram, Early Production (1 of 2) for Ford F550 Super Duty 2008:

84

(in body main harness, near breakout under driver seat)
(in right "a" pillar) g302
Battery junction box (bjb) (at left rear of engine compt)
C2280d
C341a
C341c
C341d
Computer data lines system
Cpm16
Cpm17
Cpm20
Cpm21
Cpm23
Cpm26
Cpm27
Cpm28
Cpm29
Cpm31
Cpm32
Cpm33
Cpm34
Cps14
Cps15
Cps16
Cps55
Defogger system
Driver seat module (under driver seat)
Driver side exterior rear view mirror
Drv mirr horz
Drv mirr vert
Exterior lights system
Exterior rear view mirror switch
Fuse 10a
Fuse 15a
Fuse 30a
Fuse 7.5a
G300 (except super cab: in left "a" pillar) (super cab: behind left side of dash)
Gd133
Gd179
Hot at all times
L/r
Logic
Logic gnd
Lpm30
Mc can+
Mem ind led
Mem recall 1
Mem recall 2
Mem set sw
Mirr com sw
Mirr horz pot
Mirr pot feed
Mirr pot ret
Mirr vert pot
Mirror select switch
Ms can-
Mtr hor right
Mtr horz left
Mtr horz right
Mtr vert dn
Mtr vert up
Nca
Pass mirr horz
Pass mirr vert
Pwr gnd
Red
Rpm30
S317
S318
S326
S336
S338
S501
Sbb45
Sbp12
Smart junction box (on passenger side kick panel)
Up/dn
V batt
Vdb06
Vdb07
Vpm35
Vpm36
Vpm37
Vpm38

Memory Mirrors Wiring Diagram, Early Production (2 of 2) for Ford F550 Super Duty 2008

List of elements for Memory Mirrors Wiring Diagram, Early Production (2 of 2) for Ford F550 Super Duty 2008:

18

(super cab: in body main harness, near breakout under driver seat) (except super cab: in body main harness, near breakout across floor)
Defogger system
Dn/up
Exterior lights system
G203 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
L/r
Memory set switch
Nca
Out
Passenger side exterior rear view mirror
Power mirror fold relay (if equipped) (at left side of dash)
Red
S225
S325
S327 (super cab: in body main harness, near breakout behind left side of dash) (except super cab: in body main harness, near breakout to left "a" pillar)
S501
Telescoping exterior rear view mirror switch (if equipped)

Memory Mirrors Wiring Diagram, Late Production (1 of 2) for Ford F550 Super Duty 2008

List of elements for Memory Mirrors Wiring Diagram, Late Production (1 of 2) for Ford F550 Super Duty 2008:

85

(except super cab: in left "a" pillar) (super cab: behind left side of dash)
(in body main harness, near breakout under driver seat) s318
(in right "a" pillar) g302
Battery junction box (bjb) (at left rear of engine compt)
C2280d
C341a
C341b
C341c
C341d
Computer data lines system
Cpm03
Cpm06
Cpm16
Cpm17
Cpm20
Cpm21
Cpm23
Cpm28
Cpm29
Cpm33
Cpm34
Cps14
Cps15
Cps16
Cps55
Defogger system
Driver seat module (under driver seat)
Driver side exterior rear view mirror
Drv mirr horz
Drv mirr vert
Exterior lights system
Exterior rr view mirror switch
Fuse 10a
Fuse 15a
Fuse 30a
Fuse 7.5a
G300
G302 (in right "a" pillar)
Gd133
Gd179
Hot at all times
L/r
Logic
Logic gnd
Lpm30
Mem ind led
Mem recall 1
Mem recall 2
Mem set sw
Mirr com sw
Mirr horz pot
Mirr pot feed
Mirr pot ret
Mirr vert mtr
Mirr vert pot
Mirror select switch
Ms can +
Ms can -
Mtr horz right
Mtr ver up
Mtr vert dn
Nca
Pass mirr horz
Pass mirr vert
Pwr gnd
Red
Rpm30
S317
S326
S336 (in body main harness, near breakout under driver seat)
S338
S501
S513 (in left front door wiring harness, near breakout to driver door)
Sbb45
Sbp12
Smart junction box (on passenger side kick panel)
Up/dn
V batt
Vdb06
Vdb07
Vert mtr dn
Vpm35
Vpm36
Vpm37
Vpm38

Memory Mirrors Wiring Diagram, Late Production (2 of 2) for Ford F550 Super Duty 2008

List of elements for Memory Mirrors Wiring Diagram, Late Production (2 of 2) for Ford F550 Super Duty 2008:

19

(super cab: in body main harness, near breakout under driver seat) (except super cab: in body main harness, near breakout across floor)
Defogger system
Dn/up
Exterior lights system
G203 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
L/r
Memory set switch
Nca
Out
Passenger side exterior rear view mirror
Power mirror fold relay (if equipped) (at left side of dash)
Red
S225
S325
S327 (super cab: in body main harness, near breakout behind left side of dash) (except super cab: in body main harness, near breakout to left "a" pillar)
S501
S609 (in right front door harness, in breakout to passenger door)
Telescoping exterior rear view mirror switch (if equipped)

NAVIGATION

Navigation Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Navigation Wiring Diagram for Ford F550 Super Duty 2008:

20

Amp gnd
Audio control module (acm)
C2280b
C240a
C240c
Cbp28
Computer data lines system
Fuse 5a
G201 (behind center of dash, behind audio control module)
Gd114
Gps ant
Gps antenna
Hot in start
Ms can+
Ms can-
S119
Smart junction box (on passenger side kick panel)
Start
Vdb06
Vdb07

Parking Assistant Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Parking Assistant Wiring Diagram for Ford F550 Super Duty 2008:

51

(behind center of dash, behind audio control module) g203
(in backup alarm jumper harness, near breakout to left rear of vehicle) s416
(super cab: behind left side of dash) (except super cab: in left "a" pillar) g300
C2280b
Cbp35
Cls10
Cmp02
Cmp09
Cmp18
Computer data lines system
Ena/dis
Exterior lights system
Fuse 10a
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
Gd133
Gnd
Hot in run or start
Il sens in
Inner left parking aid sensor (at left side of rear bumper)
Inner right parking aid sensor (at right side of rear bumper)
Interior lights system
Ir sens in
Iso9141
Lmp07
Ol sens in
Or sens in
Outer left parking aid sensor (at left side of rear bumper)
Outer right parking aid sensor (at right side of rear bumper)
Parking aid disable switch
Parking aid module (pam) (at left kick panel, above parking brake mechanism)
Parking aid speaker (at right kick panel)
Reverse in
Rmp09
Rpm07
S224
S225
S227
S415 (in backup alarm jumper harness, near breakout to left rear of vehicle)
Sens gnd
Sens pwr
Smart junction box (on passenger side kick panel)
Sndr gnd
Sndr+
Solid state
Start/run
Status led
Vdb10
Vmp14
Vmp15
Vmp16
Vmp17

Rear Camera Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Rear Camera Wiring Diagram for Ford F550 Super Duty 2008:

30

(at center of front windshield) electrochromatic inside mirror unit
(in engine control harness, in breakout to left front of frame) s165
(in tail lamps harness, near breakout to left nca rear of vehicle)
(in wiring harness, in breakout under right side of dash or in right "a" pillar)
Battery junction box (bjb) (at left rear of engine compt)
Cbb73
Fuse 2a
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
Gd133
Gnd
Hot in run or start
Nca
Pwr
Rmp19
S167 (in tail lamp harness, in breakout to left front of frame)
S185
S291
S292
S4419
S4420 (in video camera harness, near left nca rear of vehicle) s468
S465
S467
S919 (in breakout to right nca "a" pillar)
Shield
Video +
Video -
Video camera (at middle of rear tail gate)
Video+
Video-
Vmp19

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 7) for Ford F550 Super Duty 2008

List of elements for Power Distribution Wiring Diagram (1 of 7) for Ford F550 Super Duty 2008:

35

(diesel: in engine control sensor harness, near right front side of engine) (gas: in engine control sensor harness, near breakout to right front of engine compt) s153
(in alternator rectifier system harness, in breakout to left front of engine compt) red
(in alternator rectifier system harness, in breakout to right front of engine compt) (gas) s137
(in engine control sensor harness, near breakout to right front of engine compt) (diesel) s1014
(in engine control sensor harness, near breakout to right front of engine compt) s160
150a
Battery
Battery ii (diesel)
C197a
C2463a
Cable pro
Diesel
Diesel w/ dual generators
Electric heater
Gas
Generator
Nca
Red
S1015 (diesel) (in engine control sensor harness, near breakout to right front of engine compt)
S1016 (diesel) (in engine control sensor harness, near breakout to right front of engine compt)
S1017 (diesel) (in engine control sensor harness, near breakout to right front of engine compt)
S138 (gas) (in alternator rectifier system harness, in breakout to right front of engine compt)
S139
S139 (gas) (in alternator rectifier system harness, in breakout to right front of engine compt)
S140 (in alternator rectifier system harness, in breakout to left front of engine compt)
S141 (in alternator rectifier system harness, in breakout to left front of engine compt)
S143 (in alternator rectifier system harness, in breakout to right front of engine compt)
S144 (in alternator rectifier system harness, in breakout to right front of engine compt)
S145 (in alternator rectifier system harness, in breakout to right front of engine compt)
S152 (diesel: in engine control sensor harness, near right front side of engine) (gas: in engine control sensor harness, near breakout to right front of engine compt)
S161 (in engine control sensor harness, near breakout to right front of engine compt)
Secondary generator
Starter motor
To fuse 26 (smart junction box (sjb)) (diagram 4 of 7)
To fuse 40 (battery junction box (bjb)) (diagram 2 of 7)

Power Distribution Wiring Diagram (2 of 7) for Ford F550 Super Duty 2008

List of elements for Power Distribution Wiring Diagram (2 of 7) for Ford F550 Super Duty 2008:

37

(at left rear of engine compt) battery junction box (bjb)
(in engine control sensor harness, near breakout to left front corner of vehicle) s158
A/c clutch relay
Anti-lock brake system (abs) module
Battery charge trailer tow relay
Blower motor relay
C1232b
Diesel
Driver side seat control switch
Evaporative emission (evap) canister vent valve
From c fuse 24 (diagram 2 of 7)
From splice s160 (diagram 1 of 7)
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 25a
Fuse 30a
Fuse 40a
Fuse 50a
Gas
Heated mirror relay
Left turn trailer tow relay
Parking lamp trailer tow relay
Passenger side seat control switch
Pcm power relay (diesel)
Pcm power relay (gas)
Powertrain control module (pcm)
Red
Reversing lamp relay
Right turn trailer tow relay
S117 (in engine control sensor harness, near breakout to left rear of engine compt)
S154 (in engine control sensor harness, near battery junction box)
Starter relay
Stop lamp relay
To fuse 28 (diagram 2 of 7)
To fuse 49 (diagram 3 of 7)
Transmission control module (tcm)

Power Distribution Wiring Diagram (3 of 7) for Ford F550 Super Duty 2008

List of elements for Power Distribution Wiring Diagram (3 of 7) for Ford F550 Super Duty 2008:

53

(at left rear of engine compt) battery junction box (bjb)
(in engine control sensor harness, near breakout to right rear of engine compt) s103
Anti-lock brake system (abs) module
Brake pedal position switch
C1232b
C1273a
C1273b
C175b
Cigar lighter
From d fuse 45 (diagram 2 of 7)
From fuse 47 (diagram 3 of 7)
Front console power point
Fuel pump motor diode
Fuel pump relay
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 2a
Fuse 30a
Fuse 40a
Fuse 50a
Fuse 5a
G103 (at right rear of engine compt)
G203 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
Glow plug control module (gpcm)
Hi to low relay
Instrument panel power point
Low to hi relay
Power mirror fold relay
Powertrain control module (pcm) (diesel)
Powertrain control module (pcm) (gas)
Rear console power point
Red
Run/start relay
S1000 (in engine control sensor harness, near breakout to right rear of engine compt)
S1003 (in engine control sensor harness, near breakout to right rear of engine compt)
S118 (in engine control sensor harness, near battery junction box)
S119 (in engine control sensor harness, near breakout to left front corner of vehicle)
S123 (in engine control sensor harness, near battery junction box)
S124 (in engine control sensor harness, near breakout to right rear of engine compt)
S162
S225
S323
To fuse 13 (diagram 3 of 7)
To fuse 33 (smart junction box (sjb)) (diagram 4 of 7)
To splice s233 (diagram 4 of 7)
Trailer brake control (tbc) module
Upfitter relay 1
Upfitter relay 2
Upfitter relay box (at right side of dash)
Video camera
Windshield wiper motor

Power Distribution Wiring Diagram (4 of 7) for Ford F550 Super Duty 2008

List of elements for Power Distribution Wiring Diagram (4 of 7) for Ford F550 Super Duty 2008:

58

(not used)
(on passenger side kick panel) smart junction box (sjb)
4x4 control module
Acc
Battery charge trailer tow relay
Battery junction box (bjb) (at left rear of engine compt)
C2280a
C2280b
C2280d
C2280e
C2280h
C2357a
C2463c
C281b
Compass sensor module (early production)
Electric heater
Electronic shift on the fly (esof) solenoid
From h fuse 35 (diagram 4 of 7)
From run/start relay (diagram 3 of 7)
From splice s119 (diagram 3 of 7)
From splice s152 (diagram 1 of 7)
Fuse 10a
Fuse 20a
Fuse 5a
Fuse 7.5a
Hvac eatc
Hvac emtc
Ignition switch
Instrument cluster (ic)
Key in switch
Logic
Off
Parking aid module (pam)
Passenger air bag deactivation (pad) switch
Passive anti-theft transceiver
Red
Restraints control module (rcm)
Run
S105 (in engine control sensor harness, in breakout to left rear of engine compt)
S206 (in main harness, near breakout to right side of hvac housing)
S216 (in main harness, near breakout behind audio control module)
S223 (in main harness, near breakout behind left side of dash, left of radio opening)
S233 (in main harness, near breakout behind left side of dash)
S240 (in main harness, near breakout on front of steering column, near bottom)
S314 (regular cab: in body main harness, near breakout to center of cab floor, near rear of cab) (super cab: in body main harness, near breakout under passenger seat)
Start
To circuit deactivation ignition module (cdim) (diagram 5 of 7)
To fuse 36 (diagram 4 of 7)
To fuse 38 (diagram 5 of 7)
To fuse 43 (smart junction box (sjb)) (diagram 5 of 7)
To fuse 44 (smart junction box (sjb)) (diagram 5 of 7)
To splice s126 (diagram 5 of 7)
Towl haul switch
Traction control switch
Trailer brake control (tbc) module
Vacuum pump
W/ cdim
W/o cdim

Power Distribution Wiring Diagram (5 of 7) for Ford F550 Super Duty 2008

List of elements for Power Distribution Wiring Diagram (5 of 7) for Ford F550 Super Duty 2008:

55

(diesel)
(except regular cab: in body main harness, near breakout to center console) (regular cab: in body main harness, near breakout to right rear of cab) s310
(gas)
(in engine control sensor harness, near battery junction box) s157
(not used)
(on passenger side kick panel) smart junction box (sjb)
4x4 control module
Audio control module (acm)
Batt
Battery junction box (bjb) (at left rear of engine compt)
Battery junction box (bjb) (diesel early production) (at left rear of engine compt)
Battery junction box (bjb) (gas & late production diesel) (at left rear of engine compt)
Blower motor relay
C1232b
C175t
C2280a
C2280b
C2280d
C2280e
C240a
C281b
Circuit deactivation ignition module (cdim) (behind left side of dash)
Computer data lines system
Diesel early production
Driver side front heated seat relay
From fuse 27 (diagram 4 of 7)
From ignition switch (diagram 4 of 7)
From splice s240 (diagram 4 of 7)
Fuel tank selector switch
Fuse 10a
Fuse 20a
Fuse 5a
G300 (except super cab: in left "a" pillar) (super cab: behind left side of dash)
Gnd
Heated mirror relay
Logic
Ms can+
Ms can-
Otis diode
Passenger side front heated seat relay
Powertrain control module (pcm) (gas & late production diesel)
Run in
S104 (in engine control sensor harness, near battery junction box)
S126 (in engine control harness, near battery junction box)
S201 (in main harness, near breakout behind right side of dash)
S224
S2439 (in main harness, near breakout to right "a" pillar or behind right side of dash)
S321 (regular cab: in body main harness, near breakout to right rear of cab) (super cab: in body main harness, near breakout under driver seat)
Starter relay
Subwoofer amplifier
To fuse 2 (diagram 6 of 7)
Upfitter switch
W/ cdim
W/o cdim
Windshield wiper motor

Power Distribution Wiring Diagram (6 of 7) for Ford F550 Super Duty 2008

List of elements for Power Distribution Wiring Diagram (6 of 7) for Ford F550 Super Duty 2008:

40

(in main harness, in breakout behind right "a" pillar kick panel or behind right side of dash) s204
(not used)
(on passenger side kick panel) smart junction box (sjb)
4x4 control module
All lock/ unlock relay
Backlighting led (fet)
Battery saver relay
Bs1 (fet)
C2280a
C2280d
Driver unlock relay
Fog lamp relay
From fuse 25 r (diagram 6 of 7)
From fuse 39 (diagram 5 of 7)
From fuse 6 (diagram 6 of 7)
Fuse 10a
Fuse 15a
Fuse 20a
High beam relay
Interior lighting (fet)
Keypad illum (fet)
Left low beam (fet)
Lf turn lamp (fet)
Lh corner (fet)
Lift gate (fet)
Lift glass release relay
Logic
Lr stop/ turn lamp (fet)
Park lamp relay
Puddle lamp (fet)
Red
Rf turn lamp (fet)
Rh corner (fet)
Right low beam (fet)
Rr stop/ turn lamp (fet)
Satellite digital audio receiver system (sdars) module
Telescoping exterior rear view mirror switch
To fuse 10 (diagram 6 of 7)
To fuse 11 (diagram 7 of 7)
To fuse 17 (diagram 6 of 7)

Power Distribution Wiring Diagram (7 of 7) for Ford F550 Super Duty 2008

List of elements for Power Distribution Wiring Diagram (7 of 7) for Ford F550 Super Duty 2008:

52

(crew cab: in body main harness, near breakout across floor) (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout to right rear door) s303
(crew cab: in body main harness, near breakout across floor) (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat) s301
(in body main harness, near breakout under driver seat) s317
(in main harness, near breakout to left spoke of steering wheel) s228
(not used)
(on passenger side kick panel) smart junction box (sjb)
(regular cab: in body main harness, near breakout to right rear of cab) (except regular cab: in body main harness, near breakout to center console) s311
Accessory delay relay
Adjustable pedal switch
Audio control module (acm)
C2280a
C2280b
C2280d
C228a
C2357a
C240a
C341b
C341c
C921a
Circuit breaker 30a
Crew cab
Data link connector (dlc)
Driver seat module (dsm)
Driver side door lock switch
Driver side front heated seat relay
Driver side seat control switch
Early production
Electrochromatic inside mirror unit
Exterior rear view mirror switch
From fuse 20 t (diagram 7 of 7)
From fuse 22 s (diagram 6 of 7)
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 25a
Fuse 7.5a
Horn relay
Hvac eatc
Hvac emtc
Late production
Logic
Master window control switch
Passenger side door lock switch
Passenger side front heated seat relay
Passenger side window control switch (regular & super cab)
Power sliding rear window switch
Regular & super cab
Roof opening panel module
To fuse 24 (diagram 7 of 7)
Upfitter relay 3
Upfitter relay 4
Upfitter relay box (at right side of dash)

POWER DOOR LOCKS

Power Door Locks Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008

List of elements for Power Door Locks Wiring Diagram (1 of 2) for Ford F550 Super Duty 2008:

28

(crew cab: in body main harness, near breakout to right "a" pillar) (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat)
(super cab: in body main harness, near breakout under passenger seat) (except super cab: in body main harness, near breakout to right "b" pillar)
All lock relay
Antenna
C2280c
C2280d
Control
Driver side door lock switch
Driver unlock relay
Fuse 15a
Fuse 20a
G302 (in right "a" pillar)
Hot at all times
Hot w/ accessory delay relay energized
Hsd
Lock
Logic
Passenger side door lock switch
Rke receiver internal antenna
S301
S305
S306
S308
S501
S639
Sense
Smart junction box (sjb) (on passenger side kick panel)
Un lock

Power Door Locks Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008

List of elements for Power Door Locks Wiring Diagram (2 of 2) for Ford F550 Super Duty 2008:

26

(in driver door) driver side front door ajar switch
(in front passenger door) passenger side front door ajar switch
(in left front door) left front door lock actuator
(in left rear door harness, in breakout to left "b" pillar) s800
(in left rear door) driver side rear door ajar switch
(in right rear door harness, in breakout to left "b" pillar) s700
(in right rear door) passenger side rear door ajar switch
1/2
3/4
5/6
7/8
9/0
Ajar
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
G302 (in right "a" pillar)
Keypad switch assembly
Left rear door lock actuator (in left rear door)
Passenger side door lock actuator (in passenger door)
Right rear door lock actuator (in right rear door)
S302 (crew cab: in body main harness, near breakout across floor) (regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat)
S308
S323
S326
S333 (in body main harness, near breakout under passenger seat)
S501
S639

POWER MIRRORS

Electrochromic Mirror Wiring Diagram, Early Production for Ford F550 Super Duty 2008

List of elements for Electrochromic Mirror Wiring Diagram, Early Production for Ford F550 Super Duty 2008:

15

(at center of front windshield) electrochromatic inside mirror unit
(in right "a" pillar) g302
C2280d
Cls10
Cmp41
Exterior lights system
Fuse 15a
Gd179
Gnd
Hot w/ accessory delay relay energized
Pwr
Reverse
S301
S907
Smart junction box (on passenger side kick panel)

Electrochromic Mirror Wiring Diagram, Late Production for Ford F550 Super Duty 2008

List of elements for Electrochromic Mirror Wiring Diagram, Late Production for Ford F550 Super Duty 2008:

45

(at middle of rear tail gate) video camera
(in breakout to right nca "a" pillar) s919
(in tail lamp harness, in breakout to left front of frame)
(in video camera harness, near left rear of vehicle)
(in wiring harness, in breakout under right side of dash or in right "a" pillar)
C2280d
Cbp46
Cls10
Compass +
Compass -
Computer data lines system
Electrochromatic inside mirror unit (at center of front windshield)
Exterior lights system
Fuse 15a
G300 (except super cab: in left "a" pillar) (super cab: behind left side of dash)
Gd133
Gnd
Hot w/ accessory delay relay energized
Instrument cluster (ic)
Ms can+
Ms can-
Nca
Pwr
Reverse
Rmp19
S165 (in engine control harness, in breakout to left front of frame)
S167
S291
S292
S301
S326
S4419
S4420
S465
S467 (in tail lamps harness, near breakout to left rear of vehicle)
S468
Shield
Smart junction box (on passenger side kick panel)
Video +
Video -
Vmc30
Vmc31
Vmp19
W/ video camera
W/o video camera

Power Mirrors Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Power Mirrors Wiring Diagram for Ford F550 Super Duty 2008:

32

(in left front door harness, near breakout to driver door) s500
Battery junction box (bjb) (at left rear of engine compt)
C2280d
Defogger
Defogger system
Driver side exterior rear view mirror
Exterior
Exterior lights system
Exterior rear view mirror switch
Fuse 10a
Fuse 15a
Fuse 7.5a
G203 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
Hot at all times
L/r
Lights system
Mirror select switch
Nca
Out
Passenger side exterior rear view mirror
Power mirror fold relay (if equipped) (at left side of dash)
Red
S225
S317
S325 (super cab: in body main harness, near breakout under driver seat) (except super cab: in body main harness, near breakout across floor)
S327 (except super cab: in body main harness, near breakout to left "a" pillar) (super cab: in body main harness, near breakout behind left side of dash)
S501
Smart junction box (on passenger side kick panel)
System
Telescoping exterior rear view mirror switch (if equipped)
Up/dn

POWER SEATS

Adjustable Pedal Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Adjustable Pedal Wiring Diagram for Ford F550 Super Duty 2008:

11

Adjustable pedal assembly (in driver footwell)
Adjustable pedal switch
C2280a
Far
Fuse 15a
G203 (behind center of dash, behind audio control module)
Hot at all times
Interior lights system
Near
S228
Smart junction box (on passenger side kick panel)

Driver Power Seat Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Driver Power Seat Wiring Diagram for Ford F550 Super Duty 2008:

11

Battery junction box (bjb) (at left rear of engine compt)
Driver side seat control switch
Front up/down
Fuse 30a
Fwd/ back
Fwd/back
G302 (in right "a" pillar)
Hot at all times
Left power seat motor assembly (in driver seat bottom)
Rear up/down
S338

Heated Seats Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Heated Seats Wiring Diagram for Ford F550 Super Duty 2008:

26

Automatic a/c
C2280b
C2280d
C228b
C2357a
Driver side front heated seat relay (below driver seat)
Drv seat heater switch
Fuse 10a
Fuse 20a
G302 (in right "a" pillar)
Hot at all times
Hot in run
Hvac-eatc
Hvac-emtc
Left front seat back rest heater mat (in driver seat back)
Left front seat cushion heater mat (in driver seat)
Manual a/c
Pass seat heater switch
Passenger side front heated seat relay (below passenger seat)
Right front seat back rest heater mat (in front passenger seat back)
Right front seat cushion heater mat (in front passenger seat cushion)
S310
S311
S338
S339
Smart junction box (on passenger side kick panel)

Passenger Power Seat Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Passenger Power Seat Wiring Diagram for Ford F550 Super Duty 2008:

11

Battery junction box (bjb) (at left rear of engine compt)
Front up/down
Fuse 30a
Fwd/ back
Fwd/back
G302 (in right "a" pillar)
Hot at all times
Passenger seat control switch
Rear up/down
Right power seat motor assembly (in bottom of passenger seat)
S339

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Power Top/Sunroof Wiring Diagram for Ford F550 Super Duty 2008:

30

(behind center of dash, behind audio control module)
Accessory delay relay
C2280d
C921a
C921b
Cbp47
Circuit breaker 30a
Cln03
Cln09
Close
Control
Cpr31
Cpr39
Cpr40
D/a
Dome lamp
G203
Gd115
Gd179
Gnd
Hot at all times
Interior lights system
Map lamp
Open
Roof opening panel module (at rear of roof)
Roof opening panel switch
S303
S910
Smart junction box (on passenger side kick panel)
Sw common

POWER WINDOWS

Power Windows Wiring Diagram, Crew Cab (1 of 2) for Ford F550 Super Duty 2008

List of elements for Power Windows Wiring Diagram, Crew Cab (1 of 2) for Ford F550 Super Duty 2008:

17

C2280d
C504a
C504b
Circuit breaker 30a
Control
Driver rear
Driver side front power window motor (in driver door)
G302 (in right "a" pillar)
Hot at all times
Lock out
Master window control switch
One touch elect
Passenger front
Passenger rear
S303
S501
Smart junction box (sjb) (on passenger side kick panel)

Power Windows Wiring Diagram, Crew Cab (2 of 2) for Ford F550 Super Duty 2008

List of elements for Power Windows Wiring Diagram, Crew Cab (2 of 2) for Ford F550 Super Duty 2008:

12

(in body main harness, near breakout under driver seat) s335
G203 (behind center of dash, behind audio control module)
Interior lights system
Left rear power window motor (in left rear door)
Left rear window control switch
Passenger side front power window motor (in passenger door)
Passenger side window control switch
Power sliding rear window motor (at center rear of cab)
Power sliding rear window switch
Right rear power window motor (in right rear door)
Right rear window control switch
S225

Power Windows Wiring Diagram, Except Crew Cab for Ford F550 Super Duty 2008

List of elements for Power Windows Wiring Diagram, Except Crew Cab for Ford F550 Super Duty 2008:

31

Ain
Amp
Auto down sw
C2280d
Circuit breaker 30a
Control
Down
Driver side front power window motor (in driver door)
Drv sw
G203 (behind center of dash, behind audio control module)
G302 (in right "a" pillar)
Gnd
Hot at all times
Interior lights system
Master window control switch
Micro
Out
Pass sw
Passenger side front power window motor (in passenger door)
Passenger side window control switch
Power sliding rear window motor (at center rear of cab)
Power sliding rear window switch
Relay contact
Rly coil
S225
S303
S501
Smart junction box (sjb) (on passenger side kick panel)
Vdd
Xin
Xout

RADIO

Audiophile Sound Radio Wiring Diagram, with DVD (1 of 3) for Ford F550 Super Duty 2008

List of elements for Audiophile Sound Radio Wiring Diagram, with DVD (1 of 3) for Ford F550 Super Duty 2008:

104

Accessory delay relay
Antenna
Audio antenna
Audio control module (acm)
Audio input jack
Aux aud shield
Batt
C2280a
C2280b
C2280d
C240a
C240c
C240d
Cbp28
Cbp41
Computer data lines system
Del/acc
Dme22
Dme45
Enable/ clip detect
Enable/clip detect
Front right-
Fuse 15a
Fuse 20a
Fuse 5a
G201 (behind center of dash, behind audio control module)
G202 (behind center of dash, behind audio control module)
G203 (behind center of dash, behind audio control module)
Gd114
Gd115
Gnd
Gps ant
Gps antenna
Hot at all times
Hot in start
Illum+
Illum-
Input left+
Input left-
Input right+
Input right-
Interior lights system
Lf speaker+
Lf speaker-
Lr speaker+
Lr speaker-
Micro
Ms can+
Ms can-
Nca
Pair wires
Pwr
Rf speaker+
Rme07
Rme09
Rme10
Rme12
Rme17
Rme18
Rme22
Rme24
Rme45
Rme46
Rr speaker+
Rr speaker-
S119
S217 (in main harness, near breakout behind audio control module)
S225
S232 (in main harness, near breakout behind left side of dash, below steering column)
S248 (crew cab: in body main harness, near breakout under dash)
S321
S322
Sbp39
Smart junction box (on passenger side kick panel)
Sme23
St input 2l+
St input 2l-
St input 2r+
St input 2r-
Start
Stereo 2l+
Stereo 2l-
Stereo 2r+
Stereo 2r-
Stereo shield
Subwoofer amplifier (at right rear of cab, on floor)
Sw+
Sw-
Swc1+
Swc1-
Twisted
Vdb06
Vdb07
Vln04
Vme07
Vme09
Vme10
Vme12
Vme14
Vme17
Vme18
Vme22
Vme45
Vme46

Audiophile Sound Radio Wiring Diagram, with DVD (2 of 3) for Ford F550 Super Duty 2008

List of elements for Audiophile Sound Radio Wiring Diagram, with DVD (2 of 3) for Ford F550 Super Duty 2008:

34

(in radio speaker extension harness, near breakout to passenger door)
Air conditioning system
Audio/ climate control switch
C218a
C218b
C395a
C395b
C396a
C396b
Clock spring (in steering column)
G202 (behind center of dash, behind audio control module)
Interior lights system
Left front speaker
Left front tweeter
Left rear speaker
Left rear tweeter
Media
Pair wires
Right front speaker
Right front tweeter
Right rear speaker
Right rear tweeter
S239
S502
S503
S602
S603
Seek+
Seek-
Temp+
Temp-
Twisted
Vol+
Vol-

Audiophile Sound Radio Wiring Diagram, with DVD (3 of 3) for Ford F550 Super Duty 2008

List of elements for Audiophile Sound Radio Wiring Diagram, with DVD (3 of 3) for Ford F550 Super Duty 2008:

49

(in main harness, in breakout behind right "a" pillar kick panel or behind right side of dash)
Audio shld
C2280a
C2280d
Computer data lines system
Dme17
Drain wire
Dvd player (on center of inner)
Fuse 15a
Fuse 20a
G201 (behind center of dash, behind audio control module)
G202 (behind center of dash, behind audio control module)
Gd114
Ground
Hot at all times
In spkr l+
In spkr l-
In spkr r+
In spkr r-
Ms can h
Ms can l
Nca
Out spkr l+
Out spkr l-
Out spkr r+
Out spkr r-
Radio l (+)
Radio l (-)
Radio r (+)
Radio r (-)
Rme17
Rme18
S119
S203
S204
S322
S901 (in interior lamp harness, near right "c" pillar)
Satellite antenna
Satellite digital audio receiver system (sdars) module (behind glove box)
Sbp40
Smart junction box (on passenger side kick panel)
Stereo l+
Stereo l-
Stereo r+
Stereo r-
Vdb06
Vdb07
Vme17
Vme18

Audiophile Sound Radio Wiring Diagram, without DVD (1 of 2) for Ford F550 Super Duty 2008

List of elements for Audiophile Sound Radio Wiring Diagram, without DVD (1 of 2) for Ford F550 Super Duty 2008:

111

(behind center of dash, behind audio control module)
(in radio speaker extension harness, near breakout to passenger door)
Accessory delay relay
Antenna
Audio antenna
Audio control module (acm)
Audio input jack
Aux aud shield
Batt
C2280a
C2280b
C2280d
C240a
C240c
C240d
Cbp28
Cbp41
Computer data lines system
Del/acc
Dme22
Dme45
Enable/ clip detect
Enable/clip detect
Front right-
Fuse 15a
Fuse 20a
Fuse 5a
G201
G202 (behind center of dash, behind audio control module)
G203 (behind center of dash, behind audio control module)
Gd114
Gd115
Gnd
Gps ant
Gps antenna
Hot at all times
Hot in start
Illum+
Illum-
Input left+
Input left-
Input right+
Input right-
Interior lights system
Left front speaker
Left front tweeter
Lf speaker+
Lf speaker-
Lr speaker+
Lr speaker-
Micro
Ms can+
Ms can-
Nca
Pair wires
Pwr
Rf speaker+
Rme07
Rme09
Rme10
Rme12
Rme17
Rme18
Rme22
Rme24
Rme45
Rme46
Rr speaker+
Rr speaker-
S119
S204
S217 (in main harness, near breakout behind audio control module)
S225
S232 (in main harness, near breakout behind left side of dash, below steering column)
S248 (crew cab: in body main harness, near breakout under dash)
S321
S322
S502
S503
Sbp39
Smart junction box (on passenger side kick panel)
Sme23
St input 2l+
St input 2l-
St input 2r+
St input 2r-
Start
Stereo 2l+
Stereo 2l-
Stereo 2r+
Stereo 2r-
Stereo shield
Subwoofer amplifier (at right rear of cab, on floor)
Sw+
Sw-
Swc1+
Swc1-
Twisted
Vdb06
Vdb07
Vln04
Vme07
Vme09
Vme10
Vme12
Vme14
Vme17
Vme18
Vme22
Vme45
Vme46

Audiophile Sound Radio Wiring Diagram, without DVD (2 of 2) for Ford F550 Super Duty 2008

List of elements for Audiophile Sound Radio Wiring Diagram, without DVD (2 of 2) for Ford F550 Super Duty 2008:

55

(in main harness, in breakout behind right "a" pillar kick panel or behind right side of dash)
(in radio speaker extension harness, near breakout to passenger door)
Air conditioning system
Audio/ climate control switch
C218a
C218b
C395a
C395b
C396a
C396b
Clock spring (in steering column)
Computer data lines system
Dme17
Drain
G201 (behind center of dash, behind audio control module)
G202 (behind center of dash, behind audio control module)
Gd114
Ground
Interior lights system
Left rear speaker
Left rear tweeter
Media
Ms can h
Ms can l
Nca
Out l+
Out l-
Out r+
Out r-
Pair wires
Right front speaker
Right front tweeter
Right rear speaker
Right rear tweeter
Rme17
Rme18
S119
S239
S352
S602
S603
Satellite antenna
Satellite digital audio receiver system (sdars) module (behind glove box)
Sbp40
Seek+
Seek-
Temp+
Temp-
Twisted
Vdb06
Vdb07
Vme17
Vme18
Vol+
Vol-

Base Radio Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Base Radio Wiring Diagram for Ford F550 Super Duty 2008:

76

Accessory delay relay
Amp gnd
Antenna
Audio antenna
Audio control module (acm)
Audio input jack
Batt
C2280a
C2280b
C240a
C240c
Cbp28
Cbp41
Computer data lines system
Del/acc
Dme45
Fuse 15a
Fuse 20a
Fuse 5a
G201
G203
Gd114
Gd115
Gps ant
Gps antenna
Hot at all times
Hot in start
Illum+
Illum-
Interior lights system
Left front speaker
Left rear speaker
Lf spkr+
Lf spkr-
Lr spkr-
Micro
Ms can+
Ms can-
Nca
Pair wires
Rf spkr+
Rf spkr-
Right front speaker
Right rear speaker
Rme07
Rme09
Rme10
Rme12
Rme45
Rme46
Rr spkr+
Rr spkr-
S119
S217
S225
Sbp39
Smart junction box
St input 2l+
St input 2l-
St input 2r+
St input 2r-
Start
Stereo 2l+
Stereo 2l-
Stereo 2r+
Stereo 2r-
Twisted
Vdb06
Vdb07
Vln04
Vme07
Vme09
Vme10
Vme12
Vme45
Vme46

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Shift Interlock Wiring Diagram for Ford F550 Super Duty 2008:

25

Battery junction box (bjb) (at left rear of engine compt)
Bpp
Brake pedal position switch (behind left side of dash, above brake pedal)
Brake shift interlock (on steering column)
C1232b (diesel)
C175b (gas)
C2280c
Ccb08
Computer data lines system
Fet
Fuse 13 5a
Fuse 5 10a
G203 (behind center of dash, behind audio control module)
Hot at all times
Hs can +
Hs can -
Instrument cluster (ic)
Micro bs1
Powertrain control module (pcm) (at left side of firewall)
Prk det
S106 (near breakout to left front of frame)
S235
Smart junction box (sjb) (on passenger side kick panel)
Vdb04
Vdb05

STARTING/CHARGING

6.4L DIESEL

6.4L Diesel, Charging Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Charging Wiring Diagram for Ford F550 Super Duty 2008:

43

Battery
Battery ii
Battery junction box (bjb) (at left rear of engine compt)
C1104a
C1232b
C1232e
C1251a
Cbb71
Cdc10
Cdc15
Cdc47
Cdc48
Charging indicator
Computer data lines system
Fuse 5a
G100 (at right front inner fender, near battery)
G101 (on right front side of engine)
G102 (on right front inner fender, under battery)
G109 (on frame, at left front of engine compt)
Gencon
Generator
Genmon
Hot in start or run
Hscan +
Hscan+
Hscan-
Keypwr
Power distribution system
Powertrain control module (pcm) (at left side of firewall)
Red
S1014
S1015
S1016
S1017
S123
S139
S140
S141
Secondary generator
Starting circuit
Vdb04
Vdb05
W/ dual generators

6.4L Diesel, Starting Wiring Diagram, Early Production for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Starting Wiring Diagram, Early Production for Ford F550 Super Duty 2008:

46

(at rear of transfer case)
Acc
Battery
Battery ii
Battery junction box (bjb) (at left rear of engine compt)
C1232b
C2280a
C281a
Cdc12
Cet21
Cls05
Clutch pedal position switch (m/t) (behind left side of dash, above clutch pedal)
Computer data lines system
Cpp bt
Four-wheel drive control module (behind right side of dash)
Fuse 27 20a
Fuse 40 30a
G100 (at right front inner fender, near battery)
G101 (on right front side of engine)
G102 (on right front inner fender, under battery)
G103 (at right rear of engine compt)
G109 (on frame, at left front of engine compt)
Hot at all times
Hscan+
Hscan-
Ignition switch
Lock
Neutral
Power distribution system
Powertrain control module (pcm) (at left side of firewall)
Red
Run
S126
S162
S208 (in main harness, near breakout to right side of hvac housing)
S240
Smart junction box (sjb) (on passenger side kick panel)
Smc
Start
Starter motor
Starter relay
Transmission control module (a/t)
Tro n
Tro p
Vdb04
Vdb05

6.4L Diesel, Starting Wiring Diagram, Late Production for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, Starting Wiring Diagram, Late Production for Ford F550 Super Duty 2008:

51

(at left rear of engine compt) battery junction box (bjb)
(at rear of transfer case)
Acc
Batt
Battery
Battery junction box (bjb) (at left rear of engine compt)
C1232b
C2280a
C281a
Cdc12
Cdc35
Cdc38
Cet21
Circuit deactivation ignition module (cdim) (behind left side of dash)
Cls05
Clutch pedal position switch (m/t) (behind left side of dash, above clutch pedal)
Cpp bt
Crank
Four-wheel drive control module (behind right side of dash)
Fuse 27 20a
Fuse 40 30a
G100 (at right front inner fender, near battery)
G101 (on right front side of engine)
G102 (on right front inner fender, under battery)
G103 (at right rear of engine compt)
Hot at all times
Ignition switch
Lock
Neutral
Otis diode
Out
Power distribution system
Powertrain control module (pcm) (at left side of firewall)
Red
Run
S126
S157
S162
S208 (in main harness, near breakout to right side of hvac housing)
S240
Se/smc
Smart junction box (sjb) (on passenger side kick panel)
Smr/ start
Start
Starter motor
Starter relay
Transmission control module (a/t)
Tro n
Tro p
W/ cdim
W/o cdim

6.8L

6.8L, Charging Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 6.8L, Charging Wiring Diagram for Ford F550 Super Duty 2008:

29

Battery
Battery junction box (bjb) (at left rear of engine compt)
C102a
C102b
C175b
C175e
Cbb71
Cdc09
Computer data lines system
Fuse 5a
G100 (on right front inner fender, near battery)
G101 (5.4l: at rear left side of engine, on bottom) (6.8l: at rear right side of engine, on bottom)
G102 (5.4l: at front right side of engine, on bottom) (6.8l: at right front of engine compt, under battery)
Generator
Hot in run or start
Hscan bus+
Hscan bus-
Ilc
Isp-r
Power distribution system
Powertrain control module (pcm) (at left side of firewall)
Red
S123
S137
S138
S139
Starting circuit
Vdbo4
Vdbo5

6.8L, Starting Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 6.8L, Starting Wiring Diagram for Ford F550 Super Duty 2008:

50

(6.8l: at rear right side of engine, on bottom) (5.4l: at rear left side of engine, on bottom) g101
(6.8l: under battery)
(at left rear of engine compt) battery junction box (bjb)
Acc
Batt
Battery
Battery junction box (bjb) (at left rear of engine compt)
C175b
C175t
C281a
Cdc12
Cdc35
Cdc38
Ce903
Ce904
Cet21
Circuit deactivation ignition module (cdim) (behind left side of dash)
Cls05
Clutch pedal position switch (m/t) (behind left side of dash, above clutch pedal)
Cpp bt
Cpp tt
Crank
Early production
Four-wheel drive control module (behind right side of dash)
Fuse 20a
Fuse 40 30a
G100 (on right front inner fender, near battery)
G102 (5.4l: at front right side of engine, on bottom)
Hot at all times
Ignition switch
Late production
Lock
Neutral
Otis diode
Out
Park
Power distribution system
Powertrain control module (pcm) (at left side of firewall)
Red
Run
S126
S157
S162
Se/smc
Smart junction box (sjb) (on passenger side kick panel)
Smr/ start
Start
Starter motor
Starter relay
W/ cdim

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Supplemental Restraints Wiring Diagram for Ford F550 Super Duty 2008:

54

(behind right side of dash) passenger air bag igniter
(in steering wheel) driver air bag
C218a
C2280d
C310a
C310b
Cbp32
Clock- spring (in steering column)
Computer data lines system
Cr101
Cr103
Cr120
Cr122
Cr139
Cr201
Cr224
Cutoff sw
Dr ab feed1
Dr ab rtn1
Dr buckle
Dr pret feed
Dr pret rtn
Driver safety belt buckle switch
Driver safety belt retractor pretensioner (at left "b" pillar)
Engaged when harness connector is disconnected from module
Fr crsh sns
Front impact severity sensor (at right front of vehicle)
Fuse 10a
G303 (at center of cab floor)
Hot in run or start
Hs can +
Hs can -
Pad ind
Passenger air bag deactivation (pad) switch
Passenger safety belt retractor pretensioner (at right "b" pillar)
Pin shorting bars
Ps ab feed1
Ps ab rtn1
Ps pret feed
Ps pret rtn
Red
Restraints control module (under center of front seat)
Rr101
Rr103
Rr116
Rr120
Rr122
Rr139
Run/strt
S316
Shorting bar
Smart junction box (sjb) (on passenger side kick panel)
Vdb04
Vdb05

TRANSMISSION

4WD Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 4WD Wiring Diagram for Ford F550 Super Duty 2008:

89

(in engine control sensor harness, in breakout to left rear of engine compt) s105
2h to 4l
4h lamp
4l lamp
4l to 2h
87a
Anti-lock brakes system
Battery
Battery junction box (bjb) (at left rear of engine compt)
Brake sw
C175b
C2280a
C2280b
C281a
C281b
C350a
C350b
Cbp35
Cbp43
Ccb08
Ccf06
Ccf13
Ccf14
Ccf15
Ccf16
Ccf17
Ccf22
Ccf25
Ccf26
Ccf27
Ccf28
Cet21
Clutch pedal position switch (6.4l) (behind left side of dash, above clutch pedal)
Computer data lines system
Electronic shift on the fly (esof) solenoid (at right side of engine compt)
Encoder a
Encoder b
Encoder c
Encoder p
Encoder pwr
Encoder ref
Exterior lights system
Four-wheel drive control module (behind right side of dash)
Four-wheel drive switch
Fuse 10a
Fuse 20a
Fuse 30a
Fuse 5a
G104 (at left rear of engine compt)
G108 (at left rear of engine compt)
G203 (behind center of dash, behind audio control module)
Gd115
Gnd
High to low relay
Hot at all times
Hot in run or acc
Hot in run or start
Hub lock
Hub unlock
Illum
Instrument cluster system
Interior lights system
Iso9141
Lcf24
Low to high relay
Mod sel
Mod sel ref
Neutral
Off
Powertrain control module (pcm) (at left side of firewall)
R s
Rcf09
Rcf13
Run/acc
S115
S118
S204
S208 (in main harness, near breakout to right side of hvac housing)
S225
S227
S2439
Sbp40
Smart junction box (sjb) (on passenger side kick panel)
Transfer case assembly
Transmission control module (tcm) (6.4l) (at rear of transfer case)
Vacuum pump (6.4l)
Vdb10
Ve822
Vss

6.4L DIESEL

6.4L Diesel, A/T Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 6.4L Diesel, A/T Wiring Diagram for Ford F550 Super Duty 2008:

91

(a/t: in backup lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top) (m/t: in backup lamp switch to rear lamp feed harness, near breakout to right side of transmission, near bottom)
(at left side of firewall) powertrain control module (pcm)
(in backup lamp switch to rear lamp feed harness, near breakout to top of transmission, near left side of transmission) s196
(in backup lamp switch to rear lamp feed harness, near breakout to top of transmission, near tail shaft housing)
(sspc-a) control a pressure solenoid shift
(sspc-b) control b pressure solenoid shift
(sspc-c) control c pressure solenoid shift
(sspc-d) control d pressure solenoid shift
(sspc-e) control e pressure solenoid shift
(tr-p) assembly sensor range transmission
Battery
Battery junction box (bjb) (at left rear of engine compt)
C1232b
C2280b
C281a
Cat15
Cbb72
Cet05
Cet06
Cet07
Cet09
Cet21
Cet22
Cet25
Cet49
Cet50
Cls05
Cls28
Computer data lines system
Exterior lights system
Four-wheel drive control module (behind right side of dash)
Fuse 10a
Fuse 15a
Fuse 50a
G107 (on left side frame rail, near middle of transmission)
G116 (on left side frame rail, near middle of transmission)
Gd120
Gnd
Hot at all times
Hot in run or start
Hs can (+)
Hs can (-)
Instrument cluster (ic)
Iss
Le111
Nca
Oss
Output shaft speed (oss) sensor (at top of transmission extension housing)
Pca
Pcm power relay
Re406
Ret04
Ret24
Rlc
S117
S192
S194
S198
S208 (in main harness, near breakout under left side of dash)
S227
Sbb37
Sensor temperature fluid transmission
Sig rtn
Smart junction box (sjb) (on passenger side kick panel)
Solenoid (pc-a) control pressure
Solenoid clutch converter torque
Speed sensor assembly (at top left side of transmission)
Sspc a
Sspc b
Sspc c
Sspc d
Sspc e
Tcc
Tcs
Tft
Tow haul switch (at top of steering column)
Tow/haul indicator
Transmission control module (at rear of transfer case)
Transmission torqshift
Trgnd
Tro n
Tro p
Trp
Tss
Vbpwr
Vdb04
Vdb05
Ve744
Vet27
Vet33
Vpwr

6.8L

6.8L, A/T Wiring Diagram for Ford F550 Super Duty 2008

List of elements for 6.8L, A/T Wiring Diagram for Ford F550 Super Duty 2008:

69

(in backup lamp switch to rear lamp feed harness, near breakout to front left side of transmission, near top)
(sspc-a) control a pressure solenoid shift
(sspc-b) control b pressure solenoid shift
(sspc-c) control c pressure solenoid shift
(sspc-d) control d pressure solenoid shift
(sspc-e) control e pressure solenoid shift
(tr-p) assembly sensor range transmission
Bps
Brake pressure switch (at bottom of master cylinder)
C175b
C175e
C175t
C2280b
Cat15
Ces09
Cet05
Cet06
Cet07
Cet08
Cet09
Cet22
Cet25
Cet49
Cet50
Computer data lines system
Fuse 10a
Hot in run or start
Hs can (+)
Hs can (-)
Instrument cluster (ic)
Iss
Le111
Nca
O/d off indicator
O/d off switch (at top of steering column)
Oss
Output shaft speed (oss) sensor (at top of transmission extension housing)
Pca
Powertrain control module (pcm) (at left side of firewall)
Re406
Ret04
Ret24
S183
S194
S196
S227
Sensor temperature fluid transmission
Sig rtn
Smart junction box (sjb) (on passenger side kick panel)
Solenoid (pc-a) control pressure
Solenoid clutch converter torque
Speed sensor assembly (at top left side of transmission)
Sspc a
Sspc b
Sspc c
Sspc d
Sspc e
T sig rtn
Tcc
Tcs
Tft
Transmission torqshift
Trp
Tss
Vbpwr
Ve733
Ve744
Vet27
Vpwr

WARNING SYSTEMS

Warning Systems Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Warning Systems Wiring Diagram for Ford F550 Super Duty 2008:

72

(regular cab: in body main harness, near breakout to right "b" pillar) (super cab: in body main harness, near breakout under passenger seat) s304
Auto lp
Autolp on
Brake fluid level switch (on brake fluid reservoir)
C1232b
C2280a
C2280b
C2280c
C2280d
C2280f
C310a
C310b
Cbp32
Cmc25
Computer data lines system
Cr201
Driver safety belt buckle switch (in driver seat belt buckle)
Driver side front door ajar switch (in driver door)
Driver side rear door ajar switch (in left rear door)
Fog lp
Fuse 10a
Fuse 20a
G104 (at left rear of engine compt)
G203 (behind center of dash, behind audio control module)
G300 (super cab: behind left side of dash) (except super cab: in left "a" pillar)
G302 (in right "a" pillar)
G303 (at center of cab floor)
Gnd
Hdlp off
Hdlp on
Headlamp switch
Hot at all times
Hot in run or start
Hs can +
Hs can -
Ignition switch
Input
Instrument cluster (ic)
Key in ignition switch
Left turn
Lh turn
Med can
Micro
Ms can +
Ms can -
Multifunction switch
Nca
Park brk sw
Park lp
Park lp on
Parking brake switch (behind left side of dash, on park brake assembly)
Passenger side front door ajar switch (in front passenger's door)
Passenger side rear door ajar switch (in right rear door)
Powertrain control module (pcm) (diesel) (at left side of firewall)
Restraints control module (rcm) (behind center of dash)
Rh turn
Right turn
Run/start
S113
S235
S240
S308
S314
S316
S323
S326
S501
S639
Sense
Smart junction box (sjb) (on passenger side kick panel)
Vdb04
Vdb05

WIPER/WASHER

Wiper/Washer Wiring Diagram for Ford F550 Super Duty 2008

List of elements for Wiper/Washer Wiring Diagram for Ford F550 Super Duty 2008:

30

4) int 2 5) int 3 6) int 4 7) low 8) high
Battery junction box (bjb) (at left rear of engine compt)
C2280e
Cruise control & anti-lock brakes systems
Electronics
Front wash switch
Front washer relay
Fuse 30a
Fuse 5a
G104 (at left rear of engine compt)
G203 (behind center of dash, behind audio control module)
G300 (except super cab: in left "a" pillar) (super cab: behind left side of dash)
Hall sensor
Hi/lo speed relay
Hot at all times
Hot in run or acc
Multi-function switch 1) off 2) auto 3) int 1
Park
Park sense
Red
Run
Run/ park
Run/ park relay
S104
S113
S185
S235
Smart junction box (on passenger side kick panel)
Windshield washer pump motor (at right front of engine compt)
Windshield wiper motor (except diesel: at top left side of firewall) (diesel: at left side of firewall)