All Wiring Diagrams for Ford Cab & Chassis F350 Super Duty 2003 model

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• (in main harness, near breakout for instrument cluster) s228
• (on vehicle floor, in left front footwell) g300
• A/c demand sig
• Air bag sliding contact
• Ambient air temperature sensor (on left front of engine compt)
• Ambient temp
• Batt
• Blend door actuator
• Blend door monitor
• Blend door sense +
• Blend door signal -
• Blow motor rly control
• Blower motor high
• Blower speed control signal return
• C228a
• C228b
• C270a
• Central junction box (cjb) (behind lower left side of dash)
• Diesel
• Electronic automatic temperature control (eatc) module (behind center of dash)
• Fan speed (+)
• Fan speed (-)
• Fuse 10a
• Gasoline
• Hot at all times
• Hot in run
• Ign
• Illumination
• In car temp sensor
• In-vehicle temperature sensor (behind left side of dash)
• Interior lights system
• Logic gnd
• Nca
• Powertrain control module (pcm) (on left side of firewall)
• Remote solenoid assembly
• Rest
• S114 (in engine control harness, near breakout for g101)
• Sensor return
• Sig rtn
• Solenoid assembly
• Speed control servo (in right side of engine compt)
• Speed controller
• Steering wheel contrlos
• Steering wheel radio switch
• Sunload sensor sig
• Temp (+)
• Temp (-)
• Temperature blend door actuator (behind right side of dash)
• Ubp diag

Automatic A/C Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l)
• (at left rear side of engine compt) g100
• (at left side of eng compt) g101
• (at right side of engine compt) g108
• (exc 6.0l)
• (exc 6.0l) (6.0l)
• (excursion)
• (ford super duty trucks)
• (in engine control harness, at breakout for auxiliary relay box 5) s171
• (in engine control harness, at breakout for front blower motor speed controller)
• (in engine control harness, at breakout for front blower motor speed controller) s158
• (in engine control harness, near breakout for g100) s122
• (in engine control harness, near breakout for g100) s124
• (in engine control harness, near breakout for g100) s173
• (in engine control harness, near breakout for g108) s180 s102 (in engine control harness, near breakout for g101)
• (in engine control harness, near breakout for powertrain control module)
• (on top center of dash)
• 5.4l/6.8l
• 6.0l
• 7.3l
• A/c clutch relay
• A/c clutch solenoid
• A/c compressor clutch diode
• A/c compressor cycling switch (in right rear of engine compartment, on a/c accumulator)
• A/c high pressure switch (in right side of engine compt)
• A/c press switch sig
• Auxiliary air conditioning circuit
• Auxiliary relay box 4 (exc 6.0l) auxiliary relay box 5 (6.0l) (at left rear side of engine compt)
• Blower motor relay
• C1381a
• C175
• C270a
• C270f
• C270g
• C270h
• Central junction box (cjb) (behind lower left side of dash)
• Data link connector (dlc) (behind left side of dash)
• Dual pressure (6.0l) (at front of engine)
• Exc 6.0l
• Except 6.0l
• For g108) s180
• Front blower motor speed controller (at right rear side of engine compt)
• Fuse 10 10a
• Fuse 107 40a
• Fuse 23 20a
• Fuse 27 15a
• G108 (at right side of engine compt)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Heater blower motor (at right rear side of engine compt)
• Hot at all times
• Hot in run
• Hot in start or run
• Instrument cluster)
• Nca
• Powertrain control module (pcm) (on left side of firewall)
• S106
• S116
• S119
• S157
• S162 (in engine control harness, near breakout for g100)
• S191 (in main harness, near breakout for c146)
• S218 (near breakout for instrument cluster)
• S247 (in main harness, near breakout to passenger air bag module)
• Sunload sensor
• Switch
• Vacuum pump motor (6.0l) (in right side of engine compartment)

Heater Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Heater Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control harness, at breakout for front heater blower motor resistor) s152
• (in engine control harness, near breakout for g108) s180
• (in main harness, near breakout sunload sensor) s235
• (in main harness, near breakout to radio) s290
• Blower motor relay
• Blower motor switch
• C270a
• C270g
• C294a
• C294b
• C294c
• C294d
• Central junction box (cjb) (behind lower left side of dash)
• Defrost
• Floor
• Front function selector switch assembly
• Front heater blower motor resistor (at rear of engine compt)
• Fuse 10a
• Fuse 40a
• G201 (behind left side of dash)
• Heater blower motor (at right rear side of engine compt)
• High
• Hot at all times
• Hot in run
• Illumination
• Interior lights system
• Low
• Med
• Mix
• Mode selector switch
• Of engine compartment) g108
• Off
• S257 (in main harness, near breakout to temperature blend door actuator)
• Solid state
• Temperature blend door actuator (behind right side of dash)
• Temperature control potentiometer
• Vent

Manual A/C Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Manual A/C Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l)
• (6.0l: in engine control harness, at breakout for auxiliary relay box 5) s171
• (at left rear side of engine compt) g100
• (at left side of eng compt) g101
• (at right side of engine compt) g108
• (exc 6.0l)
• (exc 6.0l) (6.0l)
• (except 6.0l) (6.0l)
• (in engine control harness, at breakout for front heater blower motor resistor) s152
• (in engine control harness, near breakout for g100) s122
• (in engine control harness, near breakout for g108) s180
• (in engine control harness, near breakout for left headlight) s109
• (in engine control harness, near breakout for powertrain control module)
• (in main harness, near breakout sunload sensor) s235
• (in main harness, near breakout to radio) s290
• 5.4l/6.8l
• 6.0l
• 7.3l
• A/c clutch relay
• A/c clutch solenoid
• A/c compressor clutch diode
• A/c compressor cycling switch (in right rear of engine compartment, on a/c accumulator)
• A/c high pressure switch (in right side of engine compt)
• A/c press sw in
• A/c press switch sig rtn
• Auxiliary relay box 4 auxiliary relay box 5 (at left rear side of engine compt)
• Blower motor relay
• Blower motor switch
• Breakout for g101)
• C1381a
• C1381c
• C175
• C270a
• C270f
• C270g
• C270h
• C294a
• C294b
• C294c
• C294d
• Central junction box (cjb) (behind lower left side of dash)
• Cooling fan speed sig
• Defrost
• Dual pressure (6.0l) (at front of engine)
• Electronic fan clutch (6.0l)
• Electronic fan clutch ctrl
• Exc 6.0l
• Except 6.0l
• Floor
• Front function selector switch assembly
• Front heater blower motor resistor (at rear of engine compt)
• Fuse 10 10a
• Fuse 10a
• Fuse 23 20a
• Fuse 27 15a
• Fuse 40a
• G108 (at right side of engine compt)
• G201 (behind left side of dash)
• Heater blower motor (at right rear side of engine compt)
• High
• Hot at all times
• Hot in run
• Hot in start or run
• Illumination
• Interior lights system
• Low
• Max
• Med
• Mix
• Mode selector switch
• Mode switch
• Nca
• Near breakout for g100)
• Normal
• Normal max
• Of engine compartment) g108
• Off
• Powertrain control module (pcm) (on left side of firewall)
• Rear air conditioning circuit (excursion)
• S106
• S116
• S119
• S162 (in engine control harness, near breakout for g100)
• S173 (in engine control harness, near breakout for g100)
• S180 (in engine control harness, near breakout for g108)
• S257 (in main harness, near breakout to temperature blend door actuator)
• Sig rtn
• Solid state
• Switch
• Temperature blend door actuator (behind right side of dash)
• Temperature control potentiometer
• Vacuum pump motor (diesel) (in right side of engine compt)
• Vent
• Vref

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Anti-lock Brakes Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control harness, near breakout for c144)
• (in engine control harness, near breakout for left headlight) s159
• (in main harness, near breakout to brake pedal position switch)
• 4x4 high/low indicator switch (near digital transmission range sensor)
• 6.0l
• Abs control module (at left side of engine compt)
• Brake fluid level switch (on brake fluid reservoir)
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• C220b
• C220c
• C270a
• C270f
• C270m
• C281b
• Central junction box (cjb) (behind lower left side of dash)
• Computer data lines system
• Cooling fans system
• Engine controls, wiper/washer, instrument cluster, cruise control, sound, transmissions systems
• Four-wheel drive control module (behind right side of dash)
• Fuse 10a
• Fuse 60a
• G100 (at left rear side of engine compt)
• G105 (at left front side of engine compt)
• G300 (on vehicle floor, in left front footwell)
• Ground
• Hot at all times
• Hot in run
• Instrument cluster
• Iso
• Left front wheel speed sensor (at left front wheel)
• Nca
• Rear axle speed sensor (on differential)
• Red/pnk
• Right front wheel speed sensor (at right front wheel)
• S102
• S109
• S111
• S163
• S178 (in engine control harness, near breakout for g101)
• S201
• S228
• S259
• Vbatt
• Vpwr
• With electronic shift on the fly
• With mechanical shift on the fly

ANTI-THEFT

Power Door Locks Wiring Diagram, with Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Door Locks Wiring Diagram, with Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003:

• (behind
• (in body main harness, near breakout for c340)
• (w/ heated seats: near breakout for c3049) (w/0 heated seats: near breakout for c3007) (w/ memory: near breakout for c327)
• Air conditioning system
• Autolamps on
• C2113a
• C2113b
• C2113c
• C270a
• C270b
• C270e
• Central junction box (cjb) (behind lower left side of dash)
• Diagnostic
• Door ajar sw
• Door lock
• Door lock out
• Door unlock
• Dr door relay
• Driver side door lock switch
• Driver side front door ajar switch
• Driver side rear door ajar switch
• Ext lamp pwr
• Exterior lights system
• Fuse 15a
• Fuse 30a
• Fuse 5a
• G201 (behind left side of dash)
• G900 (at left ``c" pillar)
• Ground
• Headlights system
• Headlmp relay
• Horn relay
• Horns system
• Hot at all times
• Interior lights system
• Left front door lock actuator
• Left rear door lock actuator
• Left side of dash) data link connector (dlc)
• Lock
• Pass- enger side door lock switch
• Passenger side door lock actuator
• Passenger side front door ajar switch
• Passenger side rear door ajar switch
• Pnk
• Right rear door lock actuator
• S214
• S233
• S272
• S290
• S300
• S304
• S305
• S307 (in body main harness, near breakout for driver's seat module)
• S318 (in body main harness, near breakout for g300)
• S329 (in body main harness, near breakout for g300)
• S501
• S639
• Sunload sens
• Sunload sensor (on top center of dash)
• Unlock
• Vbatt
• Vehicle security module (vsm) (behind left side of dash)

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Computer Data Lines Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (in main harness, near breakout for instrument cluster) s225
• (near breakout for driver's seat module) s307
• (near breakout for restraints control module)
• (not used)
• 6.0l
• Abs control module (at left side of engine compt)
• Auxiliary powertrain control module (6.0l/7.3l) (behind left center of dash)
• C1318a
• C1381a
• C1381c
• C1388c
• C175
• C2113c
• C220a
• C228b
• C270d
• C281a
• C9013
• C930
• Central junction box (behind lower left side of dash)
• Data link connector (dlc) (behind left side of dash)
• Dvd player
• Electronic automatic temperature control module (behind center of dash)
• Except 6.0l
• Four-wheel drive control module (behind right side of dash)
• Fuse 12 20a
• G101 (at left side of engine compt)
• G202 (behind left side of dash)
• Hot at all times
• Injector driver module (at left side of engine compartment)
• Instrument cluster
• Nca
• Overhead console
• Parking aid module (behind right "c" pillar)
• Powertrain control module (on left side of firewall)
• Radio
• Rear integrated control panel
• Rear seat entertainment module (in center console)
• Restraints control module (behind center of dash)
• S217
• S242
• S245 (in main harness, near breakout for restraints control module)
• S246
• S247 (near breakout to passenger air bag module)
• S284 (near breakout for data link connector)
• S286 (near breakout for data link connector)
• Shield
• Tan
• Vehicle security module (behind left side of dash)
• W/ roof opening panel
• W/0 roof opening panel
• With dvd
• With vcp

COOLING FAN

6.0L

6.0L, Cooling Fan Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L, Cooling Fan Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• C1381c
• C270f
• Central junction box (cjb) (behind lower left side of dash)
• Cooling fan speed sig
• Electronic fan clutch
• Electronic fan clutch control
• Engine coolant temperature (ect) sensor (on top left front of engine)
• Fuse 10a
• Hot in start or run
• Nca
• Powertrain control module (pcm) (on left side of firewall)
• S109
• S192 (near breakout for air charge temperature sensor)
• Sig rtn
• Vref

CRUISE CONTROL

5.4L

5.4L, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 5.4L, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control harness, near breakout for g101) s115
• (w/ steering wheel controls)
• A/t
• Abs control module (at left side of engine compartment)
• Accel
• Air bag sliding contact
• Air bag sliding contact (w/o steering wheel controls)
• Air conditioning system
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• Brake press in
• Brake pressure switch (on left side of engine compt)
• Brake/clutch sw in
• C220c
• C270a
• C270g
• C270h
• Central junction box (cjb) (behind lower left side of dash)
• Clutch pedal position (cpp) switch (behind left side of dash, above clutch pedal)
• Clutch triple function switch jumper (behind left side of dash, above clutch pedal)
• Coast
• Exc excursion
• Excursion
• Exterior lights system
• Fuse 10a
• Fuse 15a
• G108 (at right side of engine compartment)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Ground
• Horn
• Horns system
• Hot at all times
• Hot in run
• Instrument cluster
• Interior lights system
• M/t
• Nca
• Off
• Power
• Rest
• Resume
• S108 (near breakout for g101)
• S124
• S180
• S201
• S205 (in main harness, near breakout to brake pedal position switch)
• S218
• S228
• Set/
• Speed control indicator
• Speed control servo (in right side of engine compt)
• Speed ctrl ind
• Speed ctrl sw in
• Speed ctrl sw rtn
• Steering wheel/ speed control switch
• Vss input
• Vss signal

6.0L DIESEL

6.0L Diesel, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• Abs control module (at left side of eng compt)
• Air bag sliding contact
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• Brake position in
• Brake press in
• Brake pressure switch (on left side of engine compartment)
• C1381a
• C220c
• C270a
• C270h
• Central junction box (cjb) (behind lower left side of dash)
• Clutch pedal position (cpp) switch (behind left side of dash, above clutch pedal)
• Coast
• Fuse 10a
• Fuse 20a
• G300 (on vehicle floor, in left front footwell)
• Horn
• Hot at all times
• Hot in start or run
• Instrument cluster
• Interior lights system
• M/t
• Nca
• Off
• Powertrain control module (pcm) (on left side of firewall)
• Red
• Rest
• Resume
• S108 (in engine control harness, near breakout for g101)
• S112 (in engine control harness, near breakout for powertrain control module)
• S115 (in engine control harness, near breakout for g101)
• S123
• S201
• S228
• S271
• Set/ accelerate
• Speed control indicator
• Speed ctrl ind
• Speed ctrl sw in
• Speed ctrl sw rtn
• Steering wheel/ speed control switch
• Vpwr
• Vss input
• Vss signal

6.8L

6.8L, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.8L, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control harness, near breakout for g101) s115
• (w/ steering wheel controls)
• A/t
• Abs control module (at left side of engine compartment)
• Accel
• Air bag sliding contact
• Air bag sliding contact (w/o steering wheel controls)
• Air conditioning system
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• Brake press in
• Brake pressure switch (on left side of engine compt)
• Brake/clutch sw in
• C220c
• C270a
• C270g
• C270h
• Central junction box (cjb) (behind lower left side of dash)
• Clutch pedal position (cpp) switch (behind left side of dash, above clutch pedal)
• Clutch triple function switch jumper (behind left side of dash, above clutch pedal)
• Coast
• Exc excursion
• Excursion
• Exterior lights system
• Fuse 10a
• Fuse 15a
• G108 (at right side of engine compartment)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Ground
• Horn
• Horns system
• Hot at all times
• Hot in run
• Instrument cluster
• Interior lights system
• M/t
• Nca
• Off
• Power
• Rest
• Resume
• S108 (near breakout for g101)
• S124
• S180
• S201
• S205 (in main harness, near breakout to brake pedal position switch)
• S218
• S228
• Set/
• Speed control indicator
• Speed control servo (in right side of engine compt)
• Speed ctrl ind
• Speed ctrl sw in
• Speed ctrl sw rtn
• Steering wheel/ speed control switch
• Vss input
• Vss signal

7.3L DI TURBO DIESEL

7.3L DI Turbo Diesel, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Cruise Control Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control harness, near breakout for g101) s114
• A/t exc excursion
• Abs control module (at left side of eng compt)
• Air bag sliding contact
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• Brake position in
• Brake press in
• Brake pressure switch (on left side of engine compartment)
• C220c
• C270a
• C270h
• Central junction box (cjb) (behind lower left side of dash)
• Clutch pedal position (cpp) switch (behind left side of dash, above clutch pedal)
• Clutch position in
• Clutch triple function switch jumper (behind left side of dash, above clutch pedal)
• Decel- erate
• Fuse 10a
• Fuse 20a
• G300 (on vehicle floor, in left front footwell)
• Horn
• Horns system
• Hot at all times
• Hot in start or run
• Instrument cluster
• M/t exc excursion
• Nca
• Off
• Powertrain control module (pcm) (on left side of firewall)
• Red
• Resume
• S108 (in engine control harness, near breakout for g101)
• S115 (in engine control harness, near breakout for g101)
• S123
• S201
• S228
• S271
• Set/ acc
• Speed control indicator
• Speed ctrl ind
• Speed ctrl sw in
• Speed ctrl sw rtn
• Steering wheel/ speed control switch
• Vss input
• Vss signal

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Electronic Suspension Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (at left rear side of engine compt) g100
• Air suspension compressor assembly (under driver's seat)
• Air suspension compressor relay (in engine compt, at right fender)
• Air suspension kneeling switch
• Air suspension module (under left rear side of vehicle)
• Air tank moisture removal valve
• Air tank pressure sensor (on air tank)
• Air tank valve
• C1300a
• C1300b
• C220a
• C270a
• Central junction box (behind lower left side of dash)
• Fuse 15a
• G100 (at left rear side of engine compt)
• G202 (behind left side of dash)
• Hot at all times
• Hot in run
• In-line fuse 1 (at right side of engine compt)
• Instrument cluster
• Interior lights system
• Left rear shock absorber solenoid valve (at left rear underside of vehicle)
• Nca
• Right rear shock absorber solenoid valve (at right rear underside of vehicle)
• S102
• S217
• S296
• S380
• Tan
• Vbatt
• Vpwr

ENGINE PERFORMANCE

5.4L

5.4L, Engine Performance Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 5.4L, Engine Performance Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control sensor & fuel charge harn, near break- out for engine left cylinder head)
• (in main harn, near breakout for data link connector)
• (left front g300 footwell)
• (left rear side of engine compt)
• (not used)
• A/c press sw
• A/c system
• Acc
• Anti-theft system
• C270a
• Ccs
• Central junction box (behind lower left side of dash)
• Ckp(+)
• Ckp(-)
• Coil on plug
• Cust access
• Customer access
• Data link (+)
• Data link (-)
• Data link connector (dlc) (behind left side of dash)
• Data output
• Diag grd
• Digital transmission range (dtr) sensor (on left side of transmission)
• Egr sol
• Fuel pump mon
• Fuse 10a
• Fuse 20a
• Fuse 30a
• G100
• G101 (left side of engine compt)
• Hego 12
• Hot at all times
• Hot in run or start
• Iat
• Ign coil 1
• Ign coil 3
• Ign coil 5
• Ign coil 6
• Ignition transformer capacitor
• Ignition transformer capacitor (on rear of right cyl head)
• Knock sensor
• Lock
• Maf
• Nca
• Not used
• O/d off ind
• Off
• Overdrive cancel switch
• Overhead console
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm) (on left side of firewall)
• Pwr gnd
• R n
• Red
• Reprog pwr
• Run
• S106
• S130 (in engine control sensor & fuel charge harn, near break- out for engine right cylinder head)
• S135
• S162
• S201
• S258
• S271
• S284
• S286
• Shift sol 1
• Shift sol 2
• Start
• Tcs
• Tft
• To dtr sensor (diagram 4 of 4)
• To fuel pump relay (diagram 2 of 4)
• Tr1
• Tr2
• Tr4
• Trans ctrl ind
• Transmission control switch
• Vss (-)

5.4L, Engine Performance Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 5.4L, Engine Performance Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (behind right side of dash) inertia fuel shut-off switch
• (engine harness, near breakout for left side of engine compt)
• (part of fuel tank assembly) fuel tank unit
• C2207
• C270a
• C270f
• C270h
• C282
• C4033
• C433
• California
• Central junction box (behind lower left side of dash)
• Crankshaft position (ckp) sensor (on lower front center of engine)
• Crankshaft position sensor shield
• Differential pressure feedback egr (dpfe) sensor (california) (at top of engine)
• Except pickup
• Federal
• From pcm power relay (diagram 1 of 4)
• Fuel pump relay
• Fuel tank unit (california) (at fuel tank)
• Fuse 20a
• G101 (left side of engine compt)
• Hot at all times
• Instrument cluster system
• Nca
• Pickup
• Red
• Red/pnk
• S123
• S133 (california) (in engine control sensor & fuel charge harn, near breakout for engine right cylinder head)
• S145
• S161
• S167
• S401
• Throttle position (tp) sensor (on throttle body)

5.4L, Engine Performance Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 5.4L, Engine Performance Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (engine control harn, near breakout for g100)
• (in back-up light switch to rear light feed harn, near breakout for left side of transmission)
• (in engine control sensor & fuel charge harn, near breakout for engine left cylinder head)
• (in engine control sensor & fuel charge harn, near breakout for engine right cylinder head)
• (on right rear of engine compt)
• 4r100 transmission
• A/c system
• A/t
• Automatic transmission module (on left side of transmission)
• Coast clutch solenoid
• Electronic pressure control solenoid
• Evr solenoid valve (california) (on left side of engine)
• Fuel injectors
• Idle air control (iac) valve (on throttle body assembly)
• M/t
• Output shaft speed (oss) sensor (on top of transmission extension housing)
• Red
• Red/pnk
• S122
• S131
• S136
• S138
• S139
• Shift solenoid 1
• Shift solenoid 2
• Tan
• Tan/ red
• Tan/red
• Torque converter clutch solenoid
• Transmission fluid temperature sensor
• Turbine shaft speed (tss) sensor (on top of transmission, at converter housing)
• Vapor management valve

5.4L, Engine Performance Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 5.4L, Engine Performance Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (a/t)
• (calif)
• (engine control harn, near breakout for g101)
• (in engine control harn, near breakout for g101)
• (in engine control sensor & fuel charge harn, near breakout for front of engine compt)
• (in engine control sensor & fuel charge harn, near breakout for right side ex- haust system)
• (in left rear side of engine compt) (california) evap canister vent control solenoid
• (in tail lamps harn, near breakout for c311)
• (not used)
• (on right cylinder head) cylinder head temperature (cht) sensor
• (right side of engine compt) speed control servo
• 5v ref volt
• A/c cltch rly
• A/c system
• A/t
• Anti-lock brakes system
• Bpp sw
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• C270a
• C270g
• Cam pos in
• Camshaft position (cmp) sensor (on front of left cyl head)
• Canister vent
• Central junction box (behind lower left side of dash)
• Cyl head temp
• Digital transmission range (dtr) sensor (on left side of transmission)
• Dpfe sens
• Epc sol
• From dtr sensor (diagram 1 of 4)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 7
• Fuel inj 8
• Fuel pump ctrl
• Fuel tank press
• Fuse 10a
• G101 (left side of engine compt)
• G300 (left front footwell)
• Heated oxygen sensor (ho2s) 11 (on right exhaust manifold)
• Heated oxygen sensor (ho2s) 12 (california) (rear of catalytic converter)
• Heated oxygen sensor (ho2s) 21 (on left exhaust manifold)
• Heater ctrl
• Hego 11
• Hego 12
• Hego 21
• Hot at all times
• Iac sol
• Ign coil 2
• Ign coil 4
• Ign coil 7
• Ign coil 8
• Kap b(+)
• Knock sensor
• Knock sensor (on left cyl head)
• M/t
• Maf sens in
• Mass airflow (maf) sensor (in left front of engine compt)
• Nca
• Not used
• Oss
• Powertrain control module (pcm) (on left side of firewall)
• Pwr gnd
• Red
• Red/pnk
• S106
• S114
• S115
• S132
• S134
• S228
• S343
• Sig return
• Tan
• Tan/red
• Tcc sol
• Tp sens in
• Tr3a (a/t)
• Tss
• Vapor valve
• Vpwr
• Vss (+)
• Vss input

6.0L DIESEL

6.0L Diesel, Engine Performance Wiring Diagram (1 of 5) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Engine Performance Wiring Diagram (1 of 5) for Ford Cab & Chassis F350 Super Duty 2003:

• (a/t)
• (bap) sens mon
• (in engine control harn, near breakout for c1047)
• (in engine control harn, near breakout for g101)
• (in fog jumper harn, near break- out for c1045)
• (in main harn, near breakout for dlc)
• (in main harn, near breakout to brake pedal support) s224
• (m/t)
• (maf) sens out
• (map) sens mon
• (not used)
• (scp) data -
• (scp) data+
• A/c clutch input
• A/c clutch rly
• A/c system
• A/t
• Abs control module
• Acc
• Apps monitor 1
• Apps monitor 2
• Apps monitor 3
• Apps ref volt 2
• Apps sig rtn 2
• Auxiliary powertrain control module (apcm) (behind left side of dash)
• Auxiliary relay box 5 (at left rear side of engine compt)
• Brake ped pos sw
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• Brake press sw in
• Brake pressure switch
• C135
• C1381a
• C270h red
• Can bus 1h
• Can bus 1l
• Central junction box (behind lower left side of dash)
• Chassis gnd
• Clutch pedal position (cpp) switch (m/t) (above clutch pedal)
• Computer data lines system
• Cruise control system
• Cust acc tp sig
• Cust acc vss out
• Data link connector (dlc) (behind left side of dash)
• Data output link
• Fuel pmp rly
• Fuel pump monitor
• Fuse 10a
• Fuse 20a
• Fuse 2a
• Fuse 30a
• Fuse 50a
• G100
• G101
• G300 (on vehicle floor, in left front footwell)
• Gen/bat ind
• Grade/load switch (a/t)
• Grd/load sw (cpp) sw
• Hot at all times
• Hot in run
• Injector driver module power relay
• Intk air temp sens
• Lock
• M/t
• Maf sens sig rtn
• Mass airflow (maf) sensor
• Mod prog sig
• Nca
• Off
• Overhead console
• Park brake switch (on park brake assembly)
• Park brk sw input
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm) (on left fender, near battery)
• Pto ctrl
• Pwr
• Pwr gnd
• Pwr in
• Red
• Ref volt
• Run
• S101
• S106
• S114
• S120 (in engine control harn, near breakout for auxiliary relay box 5)
• S123
• S174
• S217
• S284
• S286
• Sig rtn
• Sig rtn spd ctrl
• Speed ctrl ind
• Speed ctrl sw in
• Start
• Start rly ctrl
• Starting/ charging system
• Starting/charging system
• Tach output
• To fuel pump relay (diagram 2 of 4)
• Vss input
• Water in fuel sens
• Water in fuel sensor (at top right side of engine)

6.0L Diesel, Engine Performance Wiring Diagram (2 of 5) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Engine Performance Wiring Diagram (2 of 5) for Ford Cab & Chassis F350 Super Duty 2003:

• (at top front of engine) glow plug control module (gpcm)
• (in engine con-
• (in engine control harn, near breakout for left rear side of engine compt)
• (in main harn, near breakout
• Accelerator pedal position sensor (on accelerator pedal support)
• Barometric absolute pressure (bap) sensor (behind left side of dash)
• C1273a
• C1273b
• C220c
• C270a
• C270f
• Central junction box (behind lower left side of dash)
• Ctrl set lamp
• For c212) s223
• From pcm a power relay (diagram 1 of 4)
• Fuel heater
• Fuel heater relay
• Fuel pump (near left side of trans- mission)
• Fuel pump relay
• Fuse 10a
• Fuse 20a
• Fuse 30a
• G100
• Glow plugs
• Glw plg 1
• Glw plg 2
• Glw plg 3
• Glw plg 4
• Glw plg 5
• Glw plg 6
• Glw plg 7
• Glw plg 8
• Hot at all times
• Hot in run or start
• Inertia fuel shut off switch (behind right side of dash)
• Instrument cluster
• Left valve cover assembly
• Manifold absolute pressure (map) sensor (at right side of firewall)
• Nca
• Pcm
• Power in
• Red
• Right valve cover assembly
• S147
• S162
• S170
• S193
• S213
• S250
• S271
• Speed
• Trol sensor & fuel charge harn, at break- out for top left side of engine)

6.0L Diesel, Engine Performance Wiring Diagram (3 of 5) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Engine Performance Wiring Diagram (3 of 5) for Ford Cab & Chassis F350 Super Duty 2003:

• (mounted on rear of left valve cover) injector driver module (idm)
• C1388a
• C1388b
• C270g
• Central junction box (behind lower left side
• Fuel inj 1 gnd
• Fuel inj 1 pwr
• Fuel inj 2 gnd
• Fuel inj 2 pwr
• Fuel inj 3 gnd
• Fuel inj 3 pwr
• Fuel inj 4 gnd
• Fuel inj 4 pwr
• Fuel inj 5 gnd
• Fuel inj 5 pwr
• Fuel inj 6 gnd
• Fuel inj 6 pwr
• Fuel inj 7 gnd
• Fuel inj 7 pwr
• Fuel inj 8 gnd
• Fuel inj 8 pwr
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• Fuse 10a
• G110 (at top left side of engine)
• Hot at all times
• Nca
• Red red
• S194

6.0L Diesel, Engine Performance Wiring Diagram (4 of 5) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Engine Performance Wiring Diagram (4 of 5) for Ford Cab & Chassis F350 Super Duty 2003:

• (a/t)
• (at left side of engine compt) g101
• (epc) sol 1 ctrl
• (epc) sol 2 ctrl
• (epc) sol 3 ctrl
• (epc) sol 4 ctrl
• (epc) sol 5 ctrl
• (epc) sol common
• (idm) pwr rly ctrl
• (in backup light switch to rear light feed harness, in breakout to transmission)
• (in engine control sensor & fuel charge harn, near breakout for left side of engine compt) s196
• (iss) sens in
• (on left fender, near battery)
• (oss) sens in
• (tcc) sol ctrl
• (tcil) ctrl
• (tft) sens
• (tft) sens in
• (tss) sens in
• (w/ elec- tronic shift on the fly)
• Automatic transmission 5r110
• Auxiliary relay box 5 (at left rear side of engine compt)
• C1381b
• C1388c
• Can bus 2h
• Can bus 2l
• Commumincation
• Cylinder id
• Drain wire
• Exterior lights system
• Fuel del com
• Fuse 15a
• Injector driver module (idm) (mounted on rear of left valve cover)
• Line press sol
• Logic pwr
• Neutral sw sen
• Powertrain control module (pcm)
• Pressure control solenoid
• Pressure sw 1 in
• Pressure sw 2 in
• Pressure sw 3 in
• Pressure sw 4 in
• Pressure sw 5 in
• Pwr gnd
• Pwr in
• Red
• Red red
• Ref volt
• Rev lmp rly ctrl
• Rly ctrl bat feed
• S129
• S195
• Sig rtn
• Tran range sens
• Transmission fluid temperature sensor
• Transmission range sensor (trs)

6.0L Diesel, Engine Performance Wiring Diagram (5 of 5) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Engine Performance Wiring Diagram (5 of 5) for Ford Cab & Chassis F350 Super Duty 2003:

• (act) sens in
• (ckp) sens +
• (ckp) sens -
• (cmp) sens +
• (cmp) sens -
• (ebp) sens sig
• (eot) sens in
• (icp) sens sig
• (idm) comm
• (idm) cyl id
• (idm) fuel del
• (in engine con- trol sensor & fuel charge harn, at break- out for intake system)
• (in engine control sensor & fuel charge harn, at breakout for left side of engine compt)
• (ipr) ctrl
• (on throttle body) electronic throttle control motor
• (on top of transmission extension housing) output shaft speed (oss) sensor
• Air charge temperature (act) sensor (center front of engine, in intake system)
• C1381c
• C281b
• Camshaft position (cmp) sensor
• Can bus 2h
• Can bus 2l
• Charge monitor
• Cool temp sens
• Cooling fans system
• Crankshaft position (ckp) sensor
• Egr thrtl act
• Egr thrtl pos
• Egr val pos sen
• Egr valve act
• Egr valve actuator (at top of engine)
• Elec fan cltch
• Engine coolant temperature (ect) sensor
• Engine oil temperature (eot) sensor
• Exhaust back pressure sensor
• Fan sig rtn
• Fan spd sig
• Four- wheel drive control module (behind right side of dash)
• Glow plug sys
• Gnd drain wire
• Injection control pressure (icp) sensor
• Injection pressure regulator
• Intermediate shaft
• Nca
• Powertrain control module (pcm) (on left fender, near battery)
• Red
• Ref volt
• S127 (in back-up light switch to rear light feed harn, near breakout for vehicle underbody)
• S128
• S190
• S192
• S197
• Sig rtn
• Speed sensor
• Speed sensor assembly
• Starting/ charging system
• Throttle position (tps) sensor
• Turbine shaft speed sensor
• Turbo vane ctrl
• Variable geometric turbo actuator

6.8L

6.8L, Engine Performance Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.8L, Engine Performance Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (at left rear side of engine compt)
• (in engine control sensor & fuel charge harn, near breakout for right cylinder head)
• (in left front footwell)
• (in main harn, near breakout for data link connector)
• (on rear of right cyl head) ignition transformer capacitor 2
• A/c press sw
• A/c system
• Acc
• Anti-theft system
• C270a
• Case gnd
• Ccs
• Central junction box (behind lower left side of dash)
• Ckp(+)
• Ckp(-)
• Coil on plug
• Cust acc 1
• Customer access
• Data link (+)
• Data link (-)
• Data link connector (dlc) (behind left side of dash)
• Data output
• Digital transmission range (dtr) sensor (on left side of transmission)
• Egr sol
• Eprom pwr
• Fuel inj 10
• Fuel pump mon
• Fuse 10a
• Fuse 20a
• Fuse 30a
• G100
• G101 (left side of eng compt)
• G300
• Hego 12
• Hot at all times
• Hot in run or start
• Iat
• Ign coil 1
• Ign coil 10
• Ign coil 5
• Ign coil 6
• Ignition transformer capacitor 1
• Knock sensor
• Lock
• Maf
• Nca
• Not used
• O/d off ind
• Off
• Overdrive cancel switch (a/t)
• Overhead console
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm) (on left side of firewall)
• Pwr gnd
• R n
• Red
• Run
• S106
• S130 (in engine control sensor & fuel charge harn, near breakout for left cylinder head)
• S135
• S162
• S172
• S258
• S271
• S284
• S286
• Shift sol 1
• Shift sol 2
• Start
• Tcs
• Tft
• To dtr sensor (diagram 4 of 4)
• To fuel pump relay (diagram 2 of 4)
• Tr1
• Tr2
• Tr4
• Trans ctrl ind
• Transmission control switch
• Vss (-)

6.8L, Engine Performance Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.8L, Engine Performance Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (at vehicle under body, chassis left side member) g400
• (behind right kick panel) inertia fuel shut-off switch
• (in engine control harn, near breakout for left side of engine compt)
• (part of fuel tank assembly) fuel tank unit
• C2207
• C270a
• C270f
• C270h
• C282
• C4033
• C433
• California
• Central junction box (behind lower left side of dash)
• Crankshaft position (ckp) sensor (on lower front center of engine)
• Crankshaft position sensor shield
• Except pickup
• Federal
• From pcm power relay (diagram 1 of 4)
• Fuel pump relay
• Fuel tank unit (california) (at fuel tank)
• Fuse 20a
• G101 (at left side of engine compt)
• Hot at all times
• Instrument cluster system
• Nca
• Pickup
• Red
• Red/pnk
• S123
• S145
• S161
• S167
• S170 (california) (in engine control harn, near break- out for left rear side of engine compt)
• S401
• Throttle position (tp) sensor (on throttle body)

6.8L, Engine Performance Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.8L, Engine Performance Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (in back-up light switch to rear light feed harn, near breakout for left side of transmission)
• (in engine control harn, near breakout for g100)
• (on right rear of engine compt)
• A/c system
• A/t
• Automatic transmission control module (on left side of transmission)
• Coast clutch solenoid
• Electronic pressure controller
• Fuel injectors
• Idle air control (iac) valve (on throttle body assembly)
• M/t
• Output shaft speed (oss) sensor (on top of transmission extension housing)
• Red
• Red/pnk
• S122
• S131 (in engine control sensor & fuel charge harn, near breakout for engine right cylinder head)
• S136 (in engine control sensor & fuel charge harn, near breakout for engine right cylinder head)
• S138
• S139
• Shift solenoid 1
• Shift solenoid 2
• Tan
• Tan/ red
• Tan/red
• Torque converter clutch solenoid
• Transmission fluid temperature sensor
• Turbine shaft speed (tss) sensor (on top of transmission, at converter housing)
• Vapor management valve

6.8L, Engine Performance Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.8L, Engine Performance Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (a/t)
• (calif)
• (engine harn, near breakout at left side of engine compt, near brake pressure switch)
• (in engine control harn, near break- out for g101)
• (in engine control harn, near breakout for g101)
• (in engine control sensor & fuel charge harn, near breakout for front of engine compt)
• (in left rear side of engine compt) (california) evap canister vent control solenoid
• (in tail lamps harn, near breakout for c311)
• (on right cylinder head) cylinder head temperature (cht) sensor
• (on right exhaust manifold)
• (right side of engine compt) speed control servo
• 5v ref volt
• A/c cltch rly
• A/c system
• A/t
• Anti-lock brakes system
• Bpp sw
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• C270a
• C270g
• Cam pos in
• Camshaft position (cmp) sensor (on front of left cyl head)
• Canister vent
• Central junction box (behind lower left side of dash)
• Cyl head temp
• Digital transmission range (dtr) sensor (on left side of transmission)
• Dpfe sens
• Epc sol
• Evap purge
• From dtr sensor (diagram 1 of 4)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 8
• Fuel inj 9
• Fuel pump ctrl
• Fuel tank press
• Fuse 10a
• G101 (left side of engine compt)
• G300 (in left front footwell)
• Heated oxygen sensor (ho2s) 11
• Heated oxygen sensor (ho2s) 12 (california) (rear of catalytic converter)
• Heated oxygen sensor (ho2s) 21 (on left exhaust manifold)
• Heater ctrl
• Hego 11
• Hego 12
• Hego 21
• Hot at all times
• Iac sol
• Ign coil 3
• Ign coil 4
• Ign coil 7
• Ign coil 8
• Ign coil 9
• Kap b(+)
• Knock sensor
• Knock sensor (on left cyl head)
• M/t
• Maf sens in
• Mass airflow (maf) sensor (in left front of engine compt)
• Nca
• Not used
• Oss
• Powertrain control module (pcm) (on left side of firewall)
• Pwr gnd
• Red
• Red/pnk
• S106
• S114
• S115
• S132
• S134
• S228
• S343
• Side ex- haust system)
• Sig return
• Tan
• Tan/red
• Tcc sol
• Tp sens in
• Tr3a (a/t) cpp (m/t)
• Tss
• Vpwr
• Vss (+)
• Vss input

7.3L DI TURBO DIESEL

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (a/t)
• (behind left side of dash)
• (in engine control harn, near break- out for c144)
• (in engine control harn, near break- out for g100) s123
• (in main harn, near breakout for data link connector)
• (m/t)
• (not used)
• A/c head press
• A/c system
• Acc
• Auxiliary powertrain control module (apcm) (pickup) (behind left side of dash)
• Brake press sw
• Brake pressure switch (on left side of engine compt)
• Brake warning
• Bus (+)
• Bus (-)
• Cam pos sens
• Ccs sol
• Central junction box (behind lower left side of dash)
• Cpp (m/t)
• Customer access
• Dash)
• Data link connector (dlc)
• Data output link
• Diesel fuel pump motor (below vehicle, near fuel tank)
• Digital transmission range (dtr) sensor (on left side of transmission)
• Dsl elect drv
• Dtr-tr1
• Dtr-tr2
• Dtr-tr4
• Ebp sens
• Eot
• Epr
• Excursion
• Exhaust pressure regulator (epr) (on top center of engine)
• Fuel htr
• Fuel pump pwr
• Fuse 20a
• Fuse 30a
• G100 (at left rear side of engine compt)
• G100 (left rear side of engine compt)
• G101 (left side of engine compt)
• Gen pwr sw
• Gen scan tool in
• Gpcm
• Hot at all times
• Iat
• Idle validation
• Ignition switch
• Inertia fuel shutoff (ifs) switch (behind right side of dash)
• Injector driver module power relay
• Lock
• Low current sens
• Nca
• Not used
• Off
• Overhead console system
• Passive anti- theft system transceiver module (excursion) (behind left center of dash)
• Pcm power diode
• Pcm power relay
• Pickup
• Powertrain control module (pcm) (on left side of firewall)
• Pwr gnd
• R n
• Red
• Run
• S106
• S141
• S154
• S162
• S217
• S250
• S258
• S260 (in main harn, near break- out for c264)
• S284
• S286
• Speed ctrl ind
• Speed/tach gnd
• Ss1
• Ss2
• Start
• Starting/charging system (w/ dual generators)
• Tcil
• Tcs (a/t)
• Tft
• To dtr sensor (diagram 4 of 4)
• To fuel pump relay (diagram 2 of 4)
• Tp sens
• Wastegate control solenoid (at top rear of engine compt)
• Water in fuel sensor (at top right side of engine)
• Wcs sol

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (at top front of engine) glow plug control module (gpcm)
• A/t
• C1273a
• C1273b
• C270a
• C270f
• Central junction box (behind lower left side of dash)
• Clutch pedal position (cpp) switch (m/t) (above clutch pedal)
• Cntl out
• Engine coolant temperature (ect) sensor (on front of engine)
• From pcm a power relay (diagram 1 of 4)
• Fuel pump relay
• Fuse 10a
• Fuse 20a
• Glow plugs
• Glw plg 1
• Glw plg 2
• Glw plg 3
• Glw plg 4
• Glw plg 5
• Glw plg 6
• Glw plg 7
• Glw plg 8
• Gpcm
• Hot at all times
• Hot in run or start
• Instrument cluster
• Instrument cluster system
• M/t
• Nca
• O/d off ind
• Overdrive cancel switch
• Park brake switch (on park brake assembly)
• Power in
• Red
• S126
• S147
• S271
• S278 (in main harn, at breakout for instru- ment cluster)
• Speed control set lamp c220c
• Tcs

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (in back-up light switch to rear feed harn, near breakout for left side of transmission)
• (in left side of engine compt) injector driver module (idm)
• Accelerator pedal position sensor (on accelerator pedal support)
• Automatic transmission module
• Cid sig in
• Coast clutch solenoid
• Electronic pressure control solenoid
• Engine oil temperature (eot) sensor (on top front of engine)
• Feedback
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 7
• Fuel inj 8
• Fuel injectors
• Fuel sig
• G101 (left side of engine compt)
• Inj feed
• Intake air temperature sensor (left side of engine compt, behind air cleaner)
• Nca
• Output shaft speed (oss) sensor (on top of transmission extension housing)
• Pwr gnd
• Pwr in
• Red
• S138
• S139
• Shield
• Shift solenoid
• Sig rtn
• Tan
• Tan/red
• Torque converter clutch solenoid
• Transmission fluid temperature sensor
• Turbine shaft speed (tss) sensor (on top of transmission, at converter housing)

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, California (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (at left side of engine compt) anti-lock brake system (abs) module
• (in engine control harn, near breakout for g101)
• (in engine control harn, near breakout for left rear side of engine compt)
• (in engine control sensor & fuel charge harn, near breakout for rear of engine compt)
• (in engine control sensor & fuel charge harn, near breakout for right side of engine) s1001
• (not used)
• Accl pos sens
• Act sens
• Air charge temperature (act) sensor (center front of engine, in intake system)
• Air intake heater
• Bpp sw
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• C270a
• C270g
• Camshaft position (cmp) sensor (on lower front center of engine)
• Central junction box (behind lower left side of dash)
• Charge ind
• Cid sig
• Cmp rtn
• Cruise control system
• Customer access
• Digital transmission range (dtr) sensor (on left side of transmission)
• Dtr-tr3a
• Epc sol
• Exhaust back pressure (ebp) sensor (on right rear of engine)
• From dtr sensor (diagram 1 of 4)
• Fuel deliv sig
• Fuel pump rly
• Fuse 10a
• G102 (at right side of engine)
• G111 (at top of engine
• G300 (left front footwell)
• Gen pwr
• Glow plug ctrl
• Hot at all times
• Icp sens
• Idm enable out
• Injection control pressure (icp) sensor (on top left side of engine, right of alternator)
• Injection pressure (ipr) regulator (on top center of engine)
• Ipr sens
• Manifold absolute pressure (map) sensor (on right side of firewall)
• Manifold intake air heater relay (at top right side of engine)
• Map sens
• Oss sens
• Pcm to relay
• Pickup
• Powertrain control module (pcm) (on left side of firewall)
• Pwr
• Pwr gnd
• Pwr in
• Red
• S106
• S114
• S115 (in engine control harn, near breakout for g101)
• S151
• S153
• S170
• S228
• Sig rtn
• Speed ctrl sw
• Starting/ charging system
• Starting/ charging system (w/ dual generators)
• Take off pwr in
• Tcc
• Tss sens
• Vref
• Vss (+)
• Vss out

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (a/t)
• (behind center of dash)
• (in engine control harn, near break- out for c144)
• (in engine control harn, near break- out for g100) s123
• (in main harn, near breakout for data link connector)
• (m/t)
• A/c head press
• A/c system
• Acc
• Auxiliary powertrain control module (apcm) (pickup) (behind left side of dash)
• Brake press sw
• Brake pressure switch (on left side of engine compt)
• Brake warning
• Bus (+)
• Bus (-)
• Cam pos sens
• Ccs sol
• Central junction box (behind lower left side of dash)
• Cpp (m/t)
• Customer access
• Dash)
• Data link connector (dlc)
• Data output link
• Diesel fuel pump motor (below vehicle, near fuel tank)
• Digital transmission range (dtr) sensor (on left side of transmission)
• Dsl elect drv
• Dtr-tr1
• Dtr-tr2
• Dtr-tr4
• Ebp sens
• Eot
• Epr
• Excursion
• Exhaust pressure regulator (epr) (on top center of engine)
• Fuel htr
• Fuel pump pwr
• Fuse 20a
• Fuse 30a
• G100 (at left rear side of engine compt)
• G100 (left rear side of engine compt)
• G101 (left side of engine compt)
• Gen pwr sw
• Gen scan tool in
• Glow plug mon
• Hot at all times
• Iat
• Idle validation
• Ignition switch
• Inertia fuel shutoff (ifs) switch (behind right side of dash)
• Injector driver module power relay
• Lock
• Low current sens
• Nca
• Not used
• Off
• Overhead console system
• Passive anti- theft system transceiver module (excursion) (behind left center of dash)
• Pcm power diode
• Pcm power relay
• Pickup
• Powertrain control module (pcm) (on left side of firewall)
• Pwr gnd
• R n
• Red
• Run
• S106
• S141
• S154
• S162
• S217
• S250
• S258
• S284
• S286
• Speed ctrl ind
• Speed/tach gnd
• Ss1
• Ss2
• Start
• Starting/charging system (w/ dual generators)
• Tcil
• Tcs (a/t)
• Tft
• To dtr sensor (diagram 4 of 4)
• To fuel pump relay (diagram 2 of 4)
• Tp sens
• Wastegate control solenoid (at top rear of engine compt)
• Water in fuel sensor (at top right side of engine)
• Wcs sol

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control sensor & fuel charge harn, near breakout for right side of engine) s1001
• A/t
• C1279
• C1280
• C270a
• C270f
• Central junction box (behind lower left side of dash)
• Clutch pedal position (cpp) switch (m/t) (above clutch pedal)
• Engine coolant temperature (ect) sensor (on front of engine)
• From pcm a power relay (diagram 1 of 4)
• Fuel pump relay
• Fuse 10a
• Fuse 20a
• G111 (at top of engine)
• Glow plug relay (at top of engine)
• Glow plugs
• Hot at all times
• Hot in run or start
• Injector pressure sensor (on top center of engine)
• Instrument cluster
• Instrument cluster system
• M/t
• Manifold intake air heater 58 amp
• Manifold intake air heater relay (at top right side of engine)
• Nca
• O/d off ind
• Overdrive cancel switch
• Park brake switch (on park brake assembly)
• Red
• S126
• S150
• S271
• S278 (in main harn, at breakout for instru- ment cluster)
• Speed control set lamp c270c
• Tcs

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (in back-up light switch to rear feed harn, near breakout for left side of transmission)
• (in left side of engine compt) injector driver module (idm)
• Accelerator pedal position sensor (on accelerator pedal support)
• Automatic transmission module
• Cid sig in
• Coast clutch solenoid
• Electronic pressure control solenoid
• Engine oil temperature (eot) sensor (on top front of engine)
• Feedback
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Fuel inj 7
• Fuel inj 8
• Fuel injectors
• Fuel sig
• G101 (left side of engine compt)
• Inj feed
• Intake air temperature sensor (left side of engine compt, behind air cleaner)
• Nca
• Output shaft speed (oss) sensor (on top of transmission extension housing)
• Pwr gnd
• Pwr in
• Red
• S138
• S139
• Shield
• Shift solenoid
• Sig rtn
• Tan
• Tan/red
• Torque converter clutch solenoid
• Transmission fluid temperature sensor
• Turbine shaft speed (tss) sensor (on top of transmission, at converter housing)

7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Engine Performance Wiring Diagram, Federal (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine control harn, near breakout for g101)
• (in engine control harn, near breakout for left rear side of engine compt)
• (in engine control sensor & fuel charge harn, near breakout for rear of engine compt)
• (in left front of engine compt) anti-lock brake system (abs) module
• (not used)
• Accl pos sens
• Act sens
• Air charge temperature (act) sensor (center front of engine, in intake system)
• Bpp sw
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• C135
• C270a
• C270g
• Camshaft position (cmp) sensor (on lower front center of engine)
• Central junction box (behind lower left side of dash)
• Charge ind
• Cid sig
• Cmp rtn
• Cruise control system
• Customer access
• Digital transmission range (dtr) sensor (on left side of transmission)
• Dtr-tr3a
• Epc sol
• Exhaust back pressure (ebp) sensor (on right rear of engine)
• From dtr sensor (diagram 1 of 4)
• Fuel deliv sig
• Fuel pump rly
• Fuse 10a
• G102 (at right side of engine)
• G300 (left front footwell)
• Gen pwr
• Glow plug ctrl
• Hot at all times
• Icp sens
• Idm enable out
• Injection control pressure (icp) sensor (on top left side of engine, right of alternator)
• Ipr sens
• Manifold absolute pressure (map) sensor (on right side of firewall)
• Map sens
• Not used
• Oss sens
• Pcm to relay
• Pickup
• Powertrain control module (pcm) (on left side of firewall)
• Pwr
• Pwr gnd
• Pwr in
• Red
• S106
• S114
• S115 (engine harn, near breakout at left side of steering column)
• S151
• S153
• S170
• S228
• Sig rtn
• Speed ctrl sw
• Starting/ charging system (w/ dual generators)
• Take off pwr in
• Tcc
• Tss sens
• Vref
• Vss (+)
• Vss out

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Back-up Lamps Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (w/o dual rear wheels)
• 4 speed a/t
• 5 speed a/t
• C1381b
• C270f
• C270g
• C270h
• C270j
• Central junction box (behind lower left side of dash)
• Chassis cab,
• Digital transmission range (dtr) sensor (on left side of transmission)
• Exterior lamps
• Fuse 15a
• G400 (at vehicle under body, chassis left side member)
• Hot at all times
• Hot in run
• Left reversing lamp
• M/t
• Near breakout for left reversing light) s426
• Parking aid module (at right ``a" pillar)
• Pcm power relay
• Powertrain control module (on left side of firewall)
• Reversing lamp relay
• Reversing lamp switch (on top left side of transmission)
• Reversing lamp trailer tow relay
• Right reversing lamp
• S124
• S319 (near breakout for parking aid module)
• S357 (in body main harness, at breakout for c300)
• S404
• S404 s402 (w/ dual rear wheels)
• W/ box
• W/o box

Exterior Lamps Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l:in main harness near breakout to ignition switch) (except 6.0l: in main harness, near breakout to brake pedal position switch)
• (at left "c" pillar) g900
• (at left rear side of engine compartment) g100
• (crew cab)
• (except 6.0l: near breakout to brake pedal position switch) (6.0l:near breakout to ignition switch)
• (except crew cab)
• (except lariat) s904
• (in roof marker lamp jumper harness, near breakout for center roof marker light) s921
• (near breakout to brake pedal position switch) s240
• (near breakout to ignition switch)
• (not used)
• Auto
• Auxiliary relay box 1 (behind dash panel, to left of glove box near center of dash)
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• C202a
• C202b
• C205a
• C2113b
• C220a
• C220c
• C270a
• C270b
• Center
• Central junction box (behind lower left side of dash)
• Driver side exterior rear view mirror
• Except lariat
• Fuse 15a
• Fuse 20a
• Fuse 30a
• G108 (at right side of engine compt)
• G201 (behind left side of dash)
• G202 (behind left side of dash)
• G400 (at vehicle under body, chassis left side member)
• G900 (at left "c" pillar)
• Hazard switch
• Head
• High mounted stoplamp
• Hot at all times
• Hot in run
• Indicator flasher relay 87a
• Instrument cluster
• Interior lights system
• Lariat
• Late production
• Left
• Left center
• Left front park/turn lamp
• Left front side lamp
• Left rear park/stop/ turn lamp
• Left tail lamps
• Left turn indicator
• Main light switch
• Microprocessor
• Multifunction switch
• Nca
• Off
• Park
• Park lamp relay
• Passenger side exterior rear view mirror
• Right
• Right center
• Right front park/turn lamp
• Right front side lamp
• Right rear park/stop/ turn lamp
• Right tail lamps
• Right turn indicator
• Roof marker lamps
• S102
• S104 (in engine control control harness, near breakout for c192)
• S105 (near breakout for c144)
• S107 (near breakout for c192)
• S180
• S206
• S207
• S211
• S212
• S214
• S215 (near breakout to main light switch)
• S217
• S249
• S272
• S300
• S402
• S404
• S501
• S639
• S920 (lariat)
• Switch)
• Turn switch
• Vehicle security module (behind left side of dash)
• W/ box
• W/o box

Exterior Lamps Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l)
• (at left rear side of engine compartment)
• (at left rear side of engine compt)
• (f450 pickup w/box: near breakout for left license plate light) (except f450 pickup w/box:
• (f450 pickup w/box: near breakout for right rear park/ stop/turn light) (except f450 pickup w/box: near breakout for c438)
• (in trailer lamp feed harness, near breakout for c410)
• (near breakout for c408)
• (near breakout for c410)
• (near breakout for c410) s434
• (near breakout for c465)
• (not used)
• (wire end)
• 6.0l
• Auxiliary relay box 4 (except 6.0l) (at left rear side of engine compartment)
• Auxiliary relay box 5 (at left rear side of engine compt)
• Back-up lamps circuit
• C270b
• C270f
• C270h
• C270j
• C270k
• Center rear marker lamp
• Central junction box (behind lower left side of dash)
• Except 6.0l
• F450 w/ box
• Fuse 20a
• G100
• G400 (at vehicle under body, chassis left side member)
• Hot at all times
• Hot in run
• Left license plate lamp
• Left rear marker lamp
• Left rear park/stop/ turn lamp
• Left rear side lamp 1
• Left rear side lamp 2
• Left tail lamps
• Left turn trailer tow relay
• Nca
• Near breakout for g400) s406
• Pickup w/o box
• Pickups w/o box
• Right license plate lamp
• Right rear marker lamp
• Right rear park/stop/ turn lamp
• Right rear side lamp 1
• Right rear side lamp 2
• Right tail lamps
• Right turn trailer tow relay
• S103
• S103 (at breakout for auxiliary relay box 4)
• S162
• S265 (near breakout for g300)
• S401
• S402
• S404
• S407
• S417
• S417 (near breakout for c408)
• S418 (near breakout for c465)
• S426 (near breakout to emergency flasher relay block)
• S430
• S431
• S432
• S433
• S460 (in rear window defrost harness)
• S461
• S463
• Trailer tow battery charge relay
• Trailer tow connector (4 pin)
• Trailer tow connector (7 pin)
• Trailer tow parking lamp relay
• Trailer tow reversing lamp relay
• W/ dual rear wheels
• W/ rear bumper
• W/o dual rear wheels
• W/o rear bumper

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l)
• (6.0l) a/c clutch solenoid
• (6.0l) dual pressure switch
• (6.0l) fuel heater
• (6.0l) fuel heater relay
• (6.0l) injector driver module (idm)
• (6.0l) powertrain control module (pcm)
• (7.3l) injector driver module (idm)
• (a/t: at breakout for c1010)
• (behind lower left side of dash) central junction box (cjb)
• (diesel) exhaust pressure regulator (epr)
• (exc 6.0l)
• (exc 6.0l) powertrain control module (pcm)
• (exc 7.3l) mass air flow (maf) sensor
• (left rear side of engine compartment) auxiliary relay box 2
• (left rear side of engine compartment) auxiliary relay box 3
• (left rear side of engine compt) (6.0l) auxiliary relay box 5
• (left rear side of engine compt) (except 6.0l) auxiliary relay box 4
• (m/t: at breakout for left auxiliary relay box no.3)
• (near breakout for injector driver module)
• 5.4l, 6.8l
• 5.4l, 6.8l, 7.3l
• 6.0l
• 7.3l
• 87a
• A/c compressor clutch diode
• Abs control module
• Air filter sensor
• Air suspension compressor assembly
• Air suspension module
• Air tank moisture removal valve
• Air tank valve
• Battery
• Battery 2
• Battery charge trailer tow relay
• Brake fluid level switch
• C1381a
• C1388c
• C270f
• C270h
• C290a
• Control harness, near breakout for left headlight)
• Crankshaft position shield
• Data link connector (dlc)
• Daytime running lamps (drl) relay 1
• Daytime running lamps (drl) relay 2
• Engine compartment lamp
• Fuel pump
• G100 (left rear side of engine compt)
• G101 (left side of eng compt)
• G102 (right side of engine)
• G104 (in engine compt, at right fender)
• G105 (left front side of engine compt)
• G106 (right frame rail, in engine compt)
• G109 (left side of engine)
• G200 (behind left side of dash)
• Left front fog lamp
• Left front park/ turn lamp
• Left front side lamp
• Left headlamp
• Left rear shock absorber solenoid valve
• Left turn trailer tow relay
• Nca
• Near breakout for g100)
• Parking lamp trailer tow relay
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm)
• Radio
• Reversing lamp trailer tow relay
• Right front fog lamp
• Right rear shock absorber solenoid valve
• Right turn trailer tow relay
• S102 (in engine control harness, near breakout for g101)
• S106 (in engine control harness, near breakout for powertrain control module)
• S145 (near breakout for c110)
• S161 (near breakout for c110)
• S167
• S195
• S250
• S380 (in air suspension pressure indicator switch harness, near breakout for air tank moisture removal valve)
• Starter relay
• Transfer case high to low
• Transfer case low to high
• Windshield wiper motor

Ground Distribution Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l, 7.3l) auxiliary powertrain control module (apcm)
• (behind dash panel, to left of glove box near center of dash) auxiliary relay box 1
• (behind lower left side of dash) central junction box (cjb)
• (w/ roof opening panel) over head console
• 5.4l, 6.8l
• 6.0l, 7.3l
• A/c clutch solenoid
• Adjustable pedal switch
• Air bag sliding contact
• Air suspension kneeling switch
• Ambient air temperature sensor
• Brake pedal position switch
• Brake shift interlock
• C202b
• C205a
• C205b
• C220c
• C270a
• C281a
• C290a
• C294a
• C294b
• C294c
• Center roof marker lamp
• Data link connector (dlc)
• Except lariat
• Four- wheel drive control module
• Four- wheel drive switch
• Front cigar lighter
• Front function selector switch assembly
• Front heater blower motor resistor
• Fuel tank selector switch
• G108 (right side of engine compt)
• G201 (behind left side of dash)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Glove box lamp
• Harness, near breakout for g108)
• Horn
• Indicator flasher relay
• Instrument cluster
• Instrument panel power point
• Lariat
• Left center roof marker lamp
• Left roof marker lamp
• Left vanity mirror lamp
• Main light switch
• Multi-function switch
• Nca
• Near breakout for instrument cluster)
• Others w/ roof opening panel
• Overhead console
• Parking aid disable switch
• Powertrain control module (pcm)
• Radio
• Rear window defrost relay
• Right center roof marker lamp
• Right front park/ turn lamp
• Right front side lamp
• Right headlamp
• Right roof marker lamp
• Right vanity mirror lamp
• S172 (in engine control harness, near breakout for left front wheel speed sensor)
• S217 (in main harness, near breakout for instrument cluster)
• S218 (in main harness, near breakout for instrument cluster)
• S257 (in main harness, near breakout to temperature blend door actuator)
• S290 (in main harness, near breakout to radio)
• S904
• S920 (in roof marker lamp jumper harness, near breakout for right roof marker light)
• Speed control servo
• Steering wheel/ speed control switch
• Sunload sensor
• Temperature blend door actuator
• Vacuum pump motor
• W/ auxiliary fuel tank
• Windshield washer pump motor
• Windshield wiper motor
• Wire end

Ground Distribution Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (california)
• (federal)
• (in air suspension pressure indicator switch harness, near breakout for air tank moisture removal valve) s380
• (in rear lamp connector harness, near breakout for c408) s404
• (not used)
• (vehicle under body, chassis left side member) g400
• 4-pin trailer tow connector
• 7-pin trailer tow connector
• Center rear marker lamp
• Chassis cab
• Connector harness, near breakout for c408)
• Defrost harness)
• Except chassis cab
• F450 pickup w/ box
• Fuel tank unit
• G203 (uner right side of dash)
• G400 (vehicle under body, chassis left side member)
• Harness, near breakout for c410)
• Left front running board lamp
• Left license plate lamp
• Left rear marker lamp
• Left rear park/ stop/ turn lamp
• Left rear park/stop turn lamp
• Left rear park/stop/ turn lamp
• Left rear running board lamp
• Left rear side lamp 1
• Left rear side lamp 2
• Left reversing lamp
• Left tail lamps
• Nca
• Passenger air bag deactivation (pad) switch
• Pickups w/ box
• Pickups w/o box
• Restraints control module
• Right front running board lamp
• Right license plate lamp
• Right rear marker lamp
• Right rear park/ stop/ turn lamp
• Right rear park/stop turn 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
• Right tail lamps
• S402 (in rear lamp connector harness, near breakout for right rear park/ stop/turn light)
• S461 (in rear window defrost harness)
• S463 (in rear license plate lamp harness, near breakout for c465)
• S463 (near breakout for c465)
• Trailer tow connector truck bed
• W/ dual rear wheels
• W/ rear bumper
• W/o dual rear wheels
• W/o rear bumper

Ground Distribution Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (crew cab) rear interior/ map lamps assembly
• (except super cab)
• (in passenger-driver seat jumper harness, near breakout for passenger side seat heater switch)
• (super cab)
• (w/ power equipment) vehicle security module (vsm)
• (w/ power equipment, except crew cab) driver side front door ajar switch
• (w/memory: near breakout for c327) (w/ heated seats: near breakout for c3049) (w/o heated seats: near breakout for c3007) s306
• C2113a
• C504a
• Crew cab
• Driver side door lock switch
• Driver side exterior rear view mirror
• Driver side front door ajar switch
• Driver side front heated seat module
• Driver side front seat adjust switch
• Driver side rear door ajar switch
• Driver side seat heater switch
• Except crew cab
• Exterior rear view mirror switch
• Front interior/ map lamps assembly
• G900 (left "c" pillar)
• High mounted stoplamp
• Left front door entry lamp
• Master window adjust switch
• Nca
• Parking aid module (pam)
• Passenger side door lock switch
• Passenger side exterior rear view mirror
• Passenger side front door ajar switch
• Passenger side front heated seat module
• Passenger side front seat adjust switch
• Passenger side rear door ajar switch
• Passenger side seat heater switch
• Right front door entry lamp
• S233 (in body main harness, near grommet for right front door)
• S300 (in body main harness, near breakout for g900)
• S332 (in passenger- driver seat jumper harness, near breakout for driver safety belt buckle switch)
• S335 (in passenger-driver seat jumper harness, near breakout for passenger side heated seat switch)
• S501 (in body main harness, at breakout for driver side door lock switch)
• Safety belt buckle switch
• W/ heated seats
• W/ power equipment
• W/ power seats
• W/ remote keyless entry
• W/o heated seats
• W/o power equipment
• W/o power seats
• W/o remote keyless entry
• W/o remote keyless entry, crew cab

HEADLIGHTS

Headlights Wiring Diagram, with DRL for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Headlights Wiring Diagram, with DRL for Ford Cab & Chassis F350 Super Duty 2003:

• (early production) s221
• (except pickup & diesel excursion)
• (excursion) (pickup)
• (in fog jumper harness, near breakout for c1045) s100
• (in main harness, at breakout for foglamp relay diode)
• (in main harness, near breakout for restraints control module) s244
• (late
• (near breakout for g100)
• (on vehicle floor, in left front footwell) g300 g201 (behind left side of dash)
• (pickup & diesel excursion)
• 87a
• Air conditioning system
• Auto
• Auxiliary relay box 2 (at left rear side of engine compt)
• C202a
• C205a
• C2113b
• C220c
• C270a
• C270b
• C270f
• C270g
• C270h
• Central junction box (behind lower left side of dash)
• Central junction box (behind lower left side of dash)
• Daytime running lamps (drl) relay 1
• Daytime running lamps (drl) relay 2
• Daytime running lamps resistor (on left front side of engine compt)
• Diesel
• Engine controls system
• Fog
• Fog lamp illumination
• Fog lamp relay
• Foglamp relay diode (early production) (behind left side of dash)
• For c1047)
• Fuse 10a
• Fuse 15a
• Fuse 30a
• G100 (at left rear side of engine compt)
• G108 (at right side of engine compt)
• G202 (behind left side of dash)
• Head
• Headlamp relay
• Hi-beam indicator
• Hot at all times
• Hot in run
• Hot in start or run
• Hot in start or run
• Instrument cluster
• Instrument cluster system
• Left front fog lamp
• Left headlamp
• Main light switch
• Microprocessor
• Multi- function switch
• Off
• Park
• Park brake relay
• Parking brake switch (behind left side of dash, (on park brake assembly)
• Pass
• Production)
• Right front fog lamp
• Right headlamp
• S101
• S102
• S113
• S124
• S180
• S198
• S201 s290
• S203 (near breakout for instrument cluster)
• S214
• S217
• S220 (early production)
• S271
• Sunload sensor (on top center of dash)
• Tan/
• Transmission system
• Vehicle security module (behind left side of dash)

Headlights Wiring Diagram, without DRL for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Headlights Wiring Diagram, without DRL for Ford Cab & Chassis F350 Super Duty 2003:

• (early production) s221
• (excursion)
• (excursion) (pickup)
• (in fog jumper harness, near breakout for c1045) s100
• (in main harness, at breakout for foglamp relay diode)
• (in main harness, near breakout for restraints control module)
• (late
• (near breakout for g100)
• (pickup)
• Air conditioning system
• Auto
• C202a
• C205a
• C2113b
• C220c
• C270a
• C270b
• C270f
• C270g
• C270h
• Central junction box (behind lower left side of dash)
• Central junction box (behind lower left side of dash)
• Fog
• Fog lamp illumination
• Fog lamp relay
• Foglamp relay diode (early production) (behind left side of dash)
• Fuse 10a
• Fuse 15a
• Fuse 30a
• G100 (at left rear side of engine compt)
• G108 (at right side of engine compt)
• G201 (behind left side of dash)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Head
• Headlamp relay
• Hi-beam indicator
• Hot at all times
• Hot in start or run
• Instrument cluster
• Left front fog lamp
• Left headlamp
• Main light switch
• Microprocessor
• Multi-function switch
• Off
• Park
• Pass
• Production)
• Right front fog lamp
• Right headlamp
• S101
• S102
• S113
• S180
• S201 s290
• S214
• S217
• S220 (early production)
• S244
• S271
• Sunload sensor (on top center of dash)
• Tan/
• Vehicle security module (behind left side of dash)

HORN

Horn Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Horn Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• Air bag sliding contact
• Air conditioning system
• C2113b
• C270a
• C270h
• Central junction box (behind lower left side of dash)
• Diesel
• Fuse 15a
• G108 (at right side of engine compartment)
• Gasoline
• Horn
• Horn relay
• Hot at all times
• Nca
• Powertrain control module (on left side of firewall)
• S114
• S180
• S252 (near breakout for air bag sliding contact)
• Signal return
• Speed control servo (in right side of engine compt)
• Steering wheel/ speed control switch
• Vehicle security module (vsm) (behind left side of dash)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Instrument Cluster Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (behind left side of dash, on park brake assembly) parking brake switch
• (in taillamps harness, near breakout for fuel tank selector valve) s400
• (on left side of firewall) powertrain control module (pcm)
• 6.0l except 6.0l
• Air filter sensor (diesel) (on left side of engine compartment)
• Anti-lock brake system
• Anti-theft system
• Battery saver relay
• Brake fluid level switch (on brake fluid reservoir)
• C1381a
• C175
• C205b
• C220a
• C220b
• C220c
• C270a
• C270b
• California
• Central junction box (cjb) (behind lower left side of dash)
• Computer data lines
• Computer data lines system
• Coolant temperature sensor 2 (diesel) (at top of engine, on water pump)
• Defogger system
• Diesel
• Electronic suspension system
• Except california
• Excursion
• Exterior lights system
• Fuel tank selector switch
• Fuel tank selector valve
• Fuel tank unit
• Fuse 10a
• Fuse 15a
• G100 (at left rear side of engine compartment)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Gasoline
• Headlights system
• Hot at all times
• Hot in run or acc
• Hot in start or run
• Illumination (6 bulbs)
• Instrument cluster
• Interior lamps relay
• Interior lights system
• Interior lights, power windows system
• Keyless entry
• Main light switch
• Microprocessor
• Nca
• Oil pressure switch (5.4l, 6.8l: on left front of engine) (7.3l: on top center rear of engine)
• Overhead console
• Pickup
• Powertrain control module (pcm) (on left side of firewall)
• Primary fuel sender (on fuel tank)
• S102
• S201
• S208 (in main harness, near breakout for c264)
• S217
• S254
• S271
• S278 (in main harness, at breakout for instrument cluster)
• S298 (in main harness, at breakout for instrument cluster)
• Secondary fuel sender (on fuel tank)
• Speed control servo (in right side of engine compt)
• Starting/charging system
• Transmissions system
• Trip computer module (on front center of roof)
• W/ auxiliary fuel tank
• W/ roof opening panel
• W/o auxiliary fuel tank
• W/o remote
• W/o roof opening panel
• Warning system

Overhead Console Wiring Diagram, with Roof Opening Panel for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Overhead Console Wiring Diagram, with Roof Opening Panel for Ford Cab & Chassis F350 Super Duty 2003:

• (in main harness, at breakout for instrument cluster) s253
• (not
• (on vehicle floor, in left front footwell) g300
• 6.0l
• Abs control module (at left side of engine compartment)
• Ambient air temperature sensor (on left front of engine compt)
• C1381a
• C175
• C270a
• California
• Central junction box (cjb) (behind lower left side of dash)
• Computer data lines system
• Except 6.0l
• Except california
• Fuel tank selector valve
• Fuel tank unit
• Fuse 15a
• Hot in run
• Interior lights system
• Nca
• Overhead console
• Powertrain control module (pcm) (on left side of firewall)
• S172
• S201
• S206
• S208 (in main harness, near breakout for c264)
• Used)
• W/ auxiliary fuel tank
• W/o auxiliary fuel tank

Overhead Console Wiring Diagram, without Roof Opening Panel for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Overhead Console Wiring Diagram, without Roof Opening Panel for Ford Cab & Chassis F350 Super Duty 2003:

• (in main harness, at breakout for instrument cluster) s253
• (not
• (on vehicle floor, in left front footwell) g300
• 6.0l
• Abs control module (at left side of engine compartment)
• Ambient air temperature sensor (on left front of engine compt)
• C1381a
• C175
• C270a
• California
• Central junction box (cjb) (behind lower left side of dash)
• Computer data lines system
• Except 6.0l
• Except california
• Fuel tank selector valve
• Fuel tank unit
• Fuse 15a
• Hot in run
• Interior lights system
• Nca
• Overhead console
• Powertrain control module (pcm) (on left side of firewall)
• S172
• S201
• S206
• S208 (in main harness, near breakout for c264)
• Used)
• W/ auxiliary fuel tank
• W/o auxiliary fuel tank

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• Battery saver relay
• C205b
• C220a
• C220c
• C270a
• C270b
• Central junction box (behind lower left side of dash)
• Fuse 35 10a
• Fuse 41 10a
• G201 (behind left side of dash)
• G202 (behind left side of dash)
• Glove box lamp
• Hot at all times
• Instrument cluster
• Interior
• Interior lamps relay
• Left vanity mirror lamp
• Main light switch
• Microprocessor
• Nca
• Overhead console (w/ roof opening panel)
• Right vanity mirror lamp
• S204 (near breakout for c264)
• S218
• S229 (near breakout for instrument cluster)
• S257
• S904
• S937 (near breakout for right vanity mirror light)
• To accessory delay relay (central junction box) (diagram 2 of 2)
• To s905 (diagram 2 of 2)

Courtesy Lamps Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• Accessory delay relay
• C270a
• C270f
• C270j
• Central junction box (behind lower left side of dash)
• Engine compartment lamp
• From s204 (diagram 1 of 2)
• From s229 (diagram 1 of 2)
• Front interior/map lamps assembly
• G100 (at left rear side of engine compt)
• G400 (at vehicle under body, chassis left side member)
• G900 (at left ``c" pillar)
• High mounted stoplamp
• Interior
• Left front door entry lamp
• Left front running board lamp
• Left rear running board lamp
• Map
• Nca
• Rear interior/map lamps assembly (crew cab)
• Right front door entry lamp
• Right front running board lamp (except chassis cab)
• Right rear running board lamp (except chassis cab)
• S162
• S300
• S309 (near breakout for left rear running board light)
• S310 (near breakout for right rear running board light)
• S311 (near breakout for left rear running board light)
• S312 (near breakout for right rear running board light)
• S344 (in taillamps harness, near breakout for c311)
• S401
• S501
• S639
• S905 (at breakout for front interior/map light assembly)
• S906

Instrument Illumination Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• (w/ roof opening panel)
• (w/o rke) s639
• (w/o roof
• Accessory delay relay
• Adjustable pedal switch
• Air bag sliding contact
• Air suspension kneeling switch
• Auto
• Bulbs
• C205a
• C205b
• C220c
• C270b
• C270i
• C270j
• C290a
• C294b
• Central junction box (behind lower left side of dash)
• Circuit breaker 30a
• Driver side door lock switch
• Exterior lights system
• Four-wheel drive switch
• Front function selector switch assembly
• Fuse 17 15a
• Fuse 42 15a
• G201 (behind left side of dash)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• G900 (at left ``c" pillar)
• Head
• Hot at all times
• Instrument cluster
• Main light switch
• Microprocessor
• Nca
• Off
• Opening panel)
• Overhead console
• Park
• Parking aid disable switch
• Passenger side door lock switch
• Pnk
• Radio
• S201
• S215 (near breakout to main light switch)
• S216 (in main harness, near breakout sunload sensor)
• S217
• S218
• S233 (w/ rke)
• S272
• S290
• S297
• S302
• S501
• Steering wheel/speed control switch
• To master window adjust switch (diagram 2 of 2)
• To passenger side window adjust switch (diagram 2 of 2)

Instrument Illumination Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• C504a
• C504b
• Crew cab
• Except crew cab
• From s297 (diagram 1 of 2)
• G900 (at left ``c" pillar)
• Left rear window adjust switch
• Master window adjust switch
• Passenger side window adjust switch
• Right rear window adjust switch
• S328 (near breakout for g300)
• S501

NAVIGATION

Navigation Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Navigation Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (at right ``d" pillar) g403
• (behind left side of dash)
• (excursion)
• (in back-up alarm jumper harness, near breakout for c406)
• (pickup)
• (pickup:at right ``a" pillar)
• (w/o auxiliary a/c) s323
• C270j
• Central junction box (behind lower left side of dash)
• Compuer data lines system
• Excursion
• Exterior lights system
• Fuse 15a
• G201
• G300 (on vehicle floor, in left front footwell)
• G900 (at left ``c" pillar)
• Ground
• Hot in run
• Interior lights system
• Iso
• Left center sensor input
• Left inner parking aid sensor (on rear bumper, left of center)
• Left outer parking aid sensor (on left side of rear bumper)
• Left outer sensor input
• On/off switch
• Parking aid disable switch
• Parking aid module (excursion: behind right ``c" pillar)
• Parking aid speaker
• Pickup
• Power
• Reverse input
• Right center sensor input
• Right inner parking aid sensor (on rear bumper, right of center)
• Right outer parking aid sensor (on right side of rear bumper)
• Right outer sensor input
• S201
• S233
• S290
• S303
• S320
• S450
• S451
• Sensor ground
• Sensor power
• Speaker (+)
• Speaker (-)
• Status led

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Distribution Wiring Diagram (1 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l) (except 6.0l)
• (behind left side of dash) g201
• (breakout for auxiliary relay box 4) s103
• (except 6.0l) (6.0l)
• (in back-up light switch to rear light feed harness, at breakout for auxiliary relay box 3) s199
• (in engine control harness, near breakout for abs control module) s163
• (near breakout for auxiliary relay box 1) s249
• (near breakout for data link connector) s242
• (near breakout for instrument cluster) s228
• (near breakout for instrument cluster) s275
• (near breakout to brake pedal position switch) s214
• (near breakout to main light switch) s272
• 5 speed a/t
• 6.0l
• A/c clutch relay
• Abs control module
• Adjustable pedal switch
• Auxiliary relay box 1 (behind dash panel, to left of glove box near center of dash)
• Auxiliary relay box 3 (left rear side of engine compt)
• Auxiliary relay box 4 (except 6.0l) auxiliary relay box 5 (6.0l) (left rear side of engine compt)
• Auxiliary relay box 4 (or 5) (left rear side of engine compt)
• Auxiliary relay box 5 (left rear side of engine compt)
• Battery
• Battery ii (6.0l/7.3l)
• Brake pedal position switch
• Brake pressure switch (5.4l/6.8l)
• C202a
• C205a
• C2113b
• C270a
• C270b
• C270d
• C270e
• C270f
• C270g
• C270h
• C270i
• C270j
• C270k
• C270m
• C270p
• C281c
• C290a
• Central junction box (cjb) (behind lower left side of dash)
• Clutch pedal position switch
• Data link connector (dlc)
• Daytime running lamps resistor
• Digital transmission range (dtr) sensor
• Except 5 speed a/t
• Except 6.0l
• Exterior rear view mirror switch
• Four- wheel drive control module
• Four-wheel drive control module (w/ electronic shift on the fly)
• From a fuse 602 (diagram 1 of 4)
• From b fuse 13 (diagram 1 of 4)
• From ignition switch (diagram 3 of 4)
• Front cigar lighter
• Fuse 1 15a
• Fuse 10 10a
• Fuse 11 20a
• Fuse 111 30a
• Fuse 114 30a
• Fuse 12 20a
• Fuse 13 10a
• Fuse 14 15a
• Fuse 17 15a
• Fuse 18 20a
• Fuse 19 5a
• Fuse 20 10a
• Fuse 31 15a
• Fuse 34 10a
• Fuse 4 20a
• Fuse 5a
• Fuse 6 20a
• Fuse 602 60a
• Fuse 7 30a
• Indicator flasher relay
• Injector driver module power relay
• Instrument panel power point
• Junction block
• Left turn trailer tow relay
• Main light switch
• Multi- function switch
• Nca
• Passenger side front seat adjust switch
• Radio
• Red
• Right turn trailer tow relay
• S1000 (in battery output harness, at breakout for junction block on left fender)
• S1002 (in battery output harness, near grommet on firewall)
• S257 s290
• S290 s257
• Starter relay
• To fuse (diagram 1 of 4)
• To fuse 35 (diagram 2 of 4)
• Transfer case high to low relay
• Transfer case low to high relay
• Vehicle security module (vsm)

Power Distribution Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Distribution Wiring Diagram (2 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l)
• (in body main harness, near breakout for g300) s289
• (in body main harness, near grommet on left side of vehicle floor) s315
• (in main harness, at breakout for instrument cluster) s254
• (w/ super cab)
• Battery charge trailer tow relay
• C175
• C2113b
• C220c
• C270a
• C270b
• C270c
• C270e
• C270g
• C270i
• C270k
• C270m
• C281c
• C3181a
• Central junction box (cjb) (behind lower left side of dash)
• Driver side door lock switch
• Driver side front heated seat module
• Driver side front seat adjust switch
• Four-wheel drive control module
• From c fuse 111 (diagram 1 of 4)
• From d fuse 112 (diagram 2 of 4)
• From ignition switch (diagram 3 of 4)
• Fuel heater relay (6.0l)
• Fuel pump relay
• Fuel tank selector switch
• Fuse 101 30a
• Fuse 102 30a
• Fuse 104 40a
• Fuse 105 30a
• Fuse 106 30a
• Fuse 109 30a
• Fuse 112 30a
• Fuse 113 30a
• Fuse 115 20a
• Fuse 33 15a
• Fuse 35 10a
• Fuse 36 10a
• Fuse 37 15a
• Fuse 40 20a
• Fuse 41 10a
• Horn relay
• Injector driver module (idm) power relay (7.3l)
• Instrument cluster
• Nca
• Not used
• Passenger side door lock switch
• Passenger side front heated seat module
• Pcm power relay
• Powertrain control module (pcm)
• Rear window defrost relay
• Red
• Starter relay
• To fuse (diagram 2 of 4)
• To fuse (diagram 3 of 4)
• Vehicle security module (vsm)
• W/ remote keyless entry
• W/o remote keyless entry
• Windshield wiper motor

Power Distribution Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Distribution Wiring Diagram (3 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (5.4l: near breakout for fuel injector 3) (6.8l: near breakout for fuel injector 5) s135
• (5.4l: near breakout for fuel injector 6) (6.8l: near breakout for fuel injector 9) s130
• (6.0l/7.3l)
• (a/t)
• (in engine control harness, near breakout for left headlight) (6.0l) s109
• (in engine control sensor & fuel charge harness, near breakout for waste gate solenoid) s154
• (in main harness, near breakout for instrument cluster) s271
• (in main harness, near breakout for restraints control module) s202
• (in main harness, near breakout to ignition switch) s210
• (not used)
• (or
• 4 speed a/t
• 5 speed a/t
• 5.4l
• 5.4l/6.8l
• 6.0l
• 6.0l/7.3l
• 6.8l
• Abs control module
• Acc
• Accelerator pedal position sensor
• Auxiliary powertrain control module (apcm) (6.0l/7.3l)
• Auxiliary relay box 5 (left rear side of engine compt)
• Blower motor relay
• C1388c
• C220c
• C270a
• C270c
• C270e
• C270f
• C281a
• Central junction box (cjb) (behind lower left side of dash)
• Clutch triple function switch jumper clutch pedal position switch (m/t)
• Coil on plug (cop) 1
• Coil on plug (cop) 10
• Coil on plug (cop) 2
• Coil on plug (cop) 3
• Coil on plug (cop) 4
• Coil on plug (cop) 5
• Coil on plug (cop) 6
• Coil on plug (cop) 7
• Coil on plug (cop) 8
• Coil on plug (cop) 9 (6.8l)
• Electronic fan clutch (6.0l)
• Except 6.0l
• Fog lamp relay
• Four- wheel drive control module
• From e fuse 115 (diagram 2 of 4)
• Fuel heater
• Fuel heater relay
• Fuse 103 50a
• Fuse 107 40a
• Fuse 10a
• Fuse 110 50a
• Fuse 116 30a
• Fuse 25 10a
• Fuse 26 10a
• Fuse 38 20a
• Fuse 45 10a
• Fuse 8 15a
• Grade/ load switch
• Ignition switch
• Ignition transformer capacitor 1
• Ignition transformer capacitor 2
• Injector driver module (idm)
• Injector driver module (idm) power relay
• Instrument cluster
• Lock
• Main light switch (w/ fog lamps)
• Nca
• Off
• Overdrive cancel switch
• Parking lamp trailer tow relay
• Passenger air bag deactivation (pad) switch
• Pcm power relay
• Restraints control module
• Reversing lamp trailer tow relay
• Reversing lamps relay
• Run
• S224 (in main harness, near breakout to brake pedal position switch)
• S258 (in main harness, near breakout to brake pedal position switch)
• Sta
• Start
• Tan/red
• To fuse 27 (diagram 4 of 4)
• To fuse 31 (diagram 1 of 4)
• To fuse 33 (diagram 2 of 4)
• Waste gate solenoid

Power Distribution Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Distribution Wiring Diagram (4 of 4) for Ford Cab & Chassis F350 Super Duty 2003:

• (in body main harness, near breakout for c340) s303
• (in daytime running light kit harness, near breakout for c1047) s198
• (in engine control harness, near breakout for g100) s124
• (in main harness, near breakout sunload sensor) s206
• (in main harness, near breakout sunload sensor) s235
• (in main harness, near breakout to air suspension kneeling switch) s296
• (not used)
• 5.4l/6.8l
• 6.0l/7.3l
• A/t
• Air suspension kneeling switch
• Air suspension module
• Auxiliary relay box 1 (behind dash panel, to left of glove box near center of dash)
• Auxiliary relay box 2 (left rear side of engine compartment)
• Battery charge trailer tow relay
• Blower motor relay
• Brake shift interlock
• C270a
• C270c
• C270h
• C294a
• Central junction box (cjb) (behind lower left side of dash)
• Digital transmission range (dtr) sensor
• Driver side front heated seat module
• Electronic shift on the fly (esof) solenoid
• From fuse 25 (diagram 3 of 4)
• From ignition switch (diagram 3 of 4)
• Front function selector switch assembly
• Fuse 10a
• Fuse 15a
• Fuse 27 15a
• Indicator flasher relay
• M/t
• Nca
• Overhead console
• Park brake relay
• Parking aid module (pam)
• Passenter side front heated seat module
• Rear window defrost relay
• Reversing lamps switch
• Speed control servo
• Temperature blend door actuator
• Vaccum pump motor
• W/ roof opening panel

POWER DOOR LOCKS

Power Door Locks Wiring Diagram, without Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Door Locks Wiring Diagram, without Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003:

• (in body main harness, near breakout for c340) s304
• C270e
• Central junction box (cjb) (behind lower left side of dash)
• Driver side door lock switch
• Fuse 30a
• G900 (at left ``c" pillar)
• Hot at all times
• Interior lights system
• Left front door lock actuator
• Left rear door lock actuator (w/ crew cab)
• Lock
• Passenger side door lock actuator
• Passenger side door lock switch
• Pnk
• Right rear door lock actuator (w/ crew cab)
• S289
• S501
• S639
• Unlock

POWER MIRRORS

Power Mirrors Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Mirrors Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (at left "c" pillar) g900
• (crew cab)
• (except crew cab)
• (near breakout for g300) s279
• C270d
• C270j
• Central junction box (cjb) (behind lower left side of dash)
• Down
• Driver side exterior rear view mirror
• Exterior lights system
• Exterior rear view mirror switch
• Fuse 10a
• Fuse 20a
• Fuse 40a
• G301 (at left "c" pillar)
• Hot at all times
• Left
• Left mirror select
• Nca
• Passenger side exterior rear view mirror
• Rear window defrost relay
• Red
• Right
• Right mirror select
• S317 (near grommet on left side of vehicle floor)
• S501
• S639

POWER SEATS

Adjustable Pedal Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Adjustable Pedal Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• 270d
• Adjustable pedal motor (in driver's footwell)
• Adjustable pedal switch
• Central junction box (behind lower left side of dash)
• Fuse 15a
• Fwd
• G201 (behind left side of dash)
• Hot at all times
• Interior lights system
• Nca
• Rwd
• S257

Driver Power Seat Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Driver Power Seat Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (at left "c" pillar) g301
• (excursion)
• (excursion) (pickup)
• (on vehicle floor, in left front footwell) g300
• (pickup)
• (pickup) (excursion)
• C270i
• Central junction box (behind lower left side of dash)
• Driver side front seat adjust switch
• Except super cab
• Forward/rearward
• Front up/down
• Fuse 30a
• Fwd
• G900 (at left "c" pillar)
• Hot at all times
• Left power seat motor assembly
• Nca
• Rear up/down
• Rwd
• S332 s301
• St dn
• St up
• Super cab
• W/ heated seats
• W/o heated seats

Heated Seats Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Heated Seats Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (at left "c" pillar) g900
• Bat
• C270j
• C270k
• Central junction box (behind lower left side of dash)
• Driver side front heated seat module
• Driver side seat heater switch
• Fuse 15a
• Fuse 30a
• Gnd
• Heater feed
• Heater ret
• Hot at all times
• Hot in run
• Ind
• Left front seat back heater
• Left front seat cushion heater
• Passenger side front heated seat module
• Passenger side seat heater switch
• Right front seat back heater
• Right front seat cushion heater
• S303
• S315
• S332
• S333
• S335
• S355
• Sens feed
• Sens ret
• Sw input
• Voltage
• W/ pwr seats
• W/o pwr seats

Passenger Power Seat Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Passenger Power Seat Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (at left "c" pillar) g900
• (excursion)
• (pickup)
• C270i
• Central junction box (behind lower left side of dash)
• Forward/rearward
• Front up/down
• Fuse 30a
• Fwd
• G301 (at left "c" pillar)
• Hot at all times
• Nca
• Passenger side front seat adjust switch
• Rear up/down
• Right power seat motor assembly
• Rwd
• S335
• St dn
• St up

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Top/Sunroof Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (behind left side of dash) g201
• (near breakout for
• Accessory delay relay
• Battery saver relay
• C220b
• C220c
• C270a
• C270b
• C270d
• Central junction box (behind lower left side of dash)
• Circuit breaker 30a
• Fuse 10a
• Hot at all times
• Instrument cluster
• Instrument cluster) s229
• Interior lights system
• Microprocessor
• Nca
• Overhead console
• Roof opening panel module (at rear of roof)
• Roof opening panel motor assembly (at rear of roof)
• S904
• Tan/red

POWER WINDOWS

Power Windows Wiring Diagram, Crew Cab for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Windows Wiring Diagram, Crew Cab for Ford Cab & Chassis F350 Super Duty 2003:

• (in body main harness, near breakout for g300) s328
• (near breakout for instrument cluster)
• Accessory delay relay
• Battery saver relay
• C220b
• C220c
• C270a
• C270b
• C270i
• C270j
• C504a
• C504b
• Central junction box (cjb) (behind lower left side of dash)
• Circuit breaker 601 30a
• Driver
• Driver side front power window motor
• Excursion pickup
• Fuse 35 10a
• Fuse 41 10a
• Fuse 42 15a (excursion)
• G301 g900 (at left ``c" pillar)
• G901 (excursion) (at rear of of vehicle roof)
• G901 (excursion) (at rear of vehicle roof)
• Hot at all times
• Instrument cluster
• Interior lights system
• Left power vent window motor (at left rear of roof)
• Left power vent window switch (excursion)
• Left rear
• Left rear power window motor
• Left rear window adjust switch
• Lock
• Master window adjust switch
• Microprocessor
• One- touch down
• One-touch down relay
• Passenger
• Passenger side front power window motor
• Passenger side window adjust switch
• Pnk
• Right power vent window motor (at right rear of roof)
• Right power vent window switch (excursion)
• Right rear
• Right rear power window motor
• Right rear window adjust switch
• S229
• S501
• S935
• S939
• Vpwr

Power Windows Wiring Diagram, Except Crew Cab for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Power Windows Wiring Diagram, Except Crew Cab for Ford Cab & Chassis F350 Super Duty 2003:

• (near breakout for g300) s297
• Accessory delay relay
• Battery saver relay
• C220b
• C220c
• C270a
• C270b
• C270i
• C504a
• Central junction box (cjb) (behind lower left side of dash)
• Circuit breaker 601 30a
• Driver
• Driver side front power window motor
• Fuse 35 10a
• Fuse 41 10a
• G900 (at left ``c" pillar)
• Hot at all times
• Instrument cluster
• Lock
• Master window adjust switch
• Microprocessor
• One- touch down
• One-touch down relay
• Passenger
• Passenger side front power window motor
• Passenger side window adjust switch
• S229
• S501
• Vpwr

RADIO

Radio Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Radio Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (behind left side of dash) g201
• Antenna
• C270a
• C270d
• C290a
• Central junction box (behind lower left side of dash)
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fused ign
• G200 (behind left side of dash)
• Ground
• Hot at all times
• Hot in start
• Hot with acc delay relay energized
• Ilumination
• Interior lights system
• L f spkr
• L r spkr
• Left front speaker
• Left rear speaker
• Mem power
• Nca
• Pnk
• Power
• R f spkr
• R r spkr
• Radio
• Right front speaker
• Right rear speaker
• S285
• S290

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Shift Interlock Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• Brake pedal position switch (behind left side of dash, above brake pedal)
• Brake shift interlock
• C270a
• Central junction box (behind lower left side of dash)
• Fuse 27 15a
• Fuse 34 10a
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Hot at all times
• Hot in run
• S201
• S205 (near breakout to break pedal position switch)
• S206
• S218
• S228
• Solid state

STARTING/CHARGING

Starting Wiring Diagram, 4 Speed A/T, M/T & 4 Speed A/T for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Starting Wiring Diagram, 4 Speed A/T, M/T & 4 Speed A/T for Ford Cab & Chassis F350 Super Duty 2003:

• 4 speed a/t
• 6.0l
• Acc
• Battery
• Battery (diesel)
• C270a
• C270b
• C270c
• C270f
• C270g
• C270h
• Central junction box (behind lower left side of dash)
• Clutch pedal position switch (behind left side of dash, above clutch pedal)
• Digital transmission range (dtr) sensor (on left side of transmission)
• Exc 6.0l
• Fuse 15a
• Fuse 30a
• Fuse 50a
• G100 (at left rear side of engine compt)
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Ignition switch
• Junction block
• Lock
• M/t
• Nca
• Off
• Power distribution system
• Red
• Run
• S1000
• S162
• S210
• Sta
• Start
• Starter motor
• Starter relay
• Tan/ red
• Tan/red

Starting Wiring Diagram, 5 Speed A/T for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Starting Wiring Diagram, 5 Speed A/T for Ford Cab & Chassis F350 Super Duty 2003:

• (in back-up light switch to rear light feed harn, near breakout for trans)
• 5r100 transmission
• Acc
• Battery
• Battery (diesel)
• C1381a
• C1381b
• C270b
• C270f
• C270g
• C270h
• Central junction box (behind lower left side of dash)
• Fuse 15a
• Fuse 30a
• Fuse 50a
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Ignition switch
• Junction block
• Lock
• Nca
• Off
• Power distribution system
• Powertrain control module (on left side of firewall)
• Red
• Run
• S1000
• S127
• S128
• S210
• Sta
• Start
• Starter motor
• Starter relay
• Transmission range sensor
• Transmissions system

5.4L

5.4L, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 5.4L, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l) (except 6.0l)
• (federal) (california)
• 5.4l, 6.8l
• 5.4l, 6.8l, 7.3l
• 6.0l
• 7.3l
• Acc
• Battery
• Battery (diesel)
• C102a
• C220b
• C220c
• C270a
• C270c
• C270e
• Central junction box (cjb) (behind lower left side of dash)
• Charge
• Fuse 10a
• Fuse 30a
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Generator
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Off
• Power distribution system
• Red
• Run
• S125
• S126
• S149
• S150 s147
• S224 s258
• S271
• Start
• Starter motor

6.0L DIESEL

6.0L Diesel, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l) (except 6.0l)
• (federal) (california)
• 5.4l, 6.8l
• 5.4l, 6.8l, 7.3l
• 6.0l
• 7.3l
• Acc
• Battery
• Battery (diesel)
• C102a
• C220b
• C220c
• C270a
• C270c
• C270e
• Central junction box (cjb) (behind lower left side of dash)
• Charge
• Fuse 10a
• Fuse 30a
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Generator
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Off
• Power distribution system
• Red
• Run
• S125
• S126
• S149
• S150 s147
• S224 s258
• S271
• Start
• Starter motor

6.0L Diesel, Charging Wiring Diagram, with Dual Generators for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, Charging Wiring Diagram, with Dual Generators for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l)
• (6.0l) (7.3l)
• (7.3l)
• (federal) (california)
• 6.0l
• 7.3l
• Acc
• Battery
• Battery (diesel)
• C102a
• C1251a
• C1381a
• C1381c
• C220b
• C220c
• C270a
• C270c
• C270e
• Central junction box (behind lower left side of dash)
• Charge
• Fuse 10a
• Fuse 30a
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Generator
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Off
• Power distribution system
• Powertrain control module (pcm) (on left side of firewall)
• Red
• Run
• S125
• S126
• S143
• S149
• S150 s147
• S165
• S166
• S224 s258
• S271
• Secondary generator
• Start
• Starter motor

6.8L

6.8L, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.8L, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l) (except 6.0l)
• (federal) (california)
• 5.4l, 6.8l
• 5.4l, 6.8l, 7.3l
• 6.0l
• 7.3l
• Acc
• Battery
• Battery (diesel)
• C102a
• C220b
• C220c
• C270a
• C270c
• C270e
• Central junction box (cjb) (behind lower left side of dash)
• Charge
• Fuse 10a
• Fuse 30a
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Generator
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Off
• Power distribution system
• Red
• Run
• S125
• S126
• S149
• S150 s147
• S224 s258
• S271
• Start
• Starter motor

7.3L DI TURBO DIESEL

7.3L DI Turbo Diesel, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Charging Wiring Diagram, without Dual Generators for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l) (except 6.0l)
• (federal) (california)
• 5.4l, 6.8l
• 5.4l, 6.8l, 7.3l
• 6.0l
• 7.3l
• Acc
• Battery
• Battery (diesel)
• C102a
• C220b
• C220c
• C270a
• C270c
• C270e
• Central junction box (cjb) (behind lower left side of dash)
• Charge
• Fuse 10a
• Fuse 30a
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Generator
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Off
• Power distribution system
• Red
• Run
• S125
• S126
• S149
• S150 s147
• S224 s258
• S271
• Start
• Starter motor

7.3L DI Turbo Diesel, Charging Wiring Diagram, with Dual Generators for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L DI Turbo Diesel, Charging Wiring Diagram, with Dual Generators for Ford Cab & Chassis F350 Super Duty 2003:

• (6.0l)
• (6.0l) (7.3l)
• (7.3l)
• (federal) (california)
• 6.0l
• 7.3l
• Acc
• Battery
• Battery (diesel)
• C102a
• C1251a
• C1381a
• C1381c
• C220b
• C220c
• C270a
• C270c
• C270e
• Central junction box (behind lower left side of dash)
• Charge
• Fuse 10a
• Fuse 30a
• G102 (at right side of engine)
• G104 (in engine compartment, at right fender)
• G106 (diesel) (at right frame rail, in engine compartment)
• G109 (at left side of engine)
• Generator
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Off
• Power distribution system
• Powertrain control module (pcm) (on left side of firewall)
• Red
• Run
• S125
• S126
• S143
• S149
• S150 s147
• S165
• S166
• S224 s258
• S271
• Secondary generator
• Start
• Starter motor

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Supplemental Restraints Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (under right side dash panel) g203
• 500,000 (or 500) ohms
• Air bag feed
• Air bag indicator
• Air bag return
• Air bag sliding contact
• C220a
• C220b
• C220c
• C270a
• C270c
• Central junction box (behind lower left side of dash)
• Data link connector (dlc) (partial) (behind center of dash)
• Driver air bag unit
• Driver safety belt retractor pretensioner
• Fuse f2.26 10a
• Fuse f2.33 15a
• Fuse f2.45 10a
• Ground
• Hot in acc or run
• Hot in run
• Hot in run or start
• Ignition
• Indicator ctrl
• Instrument cluster
• Iso bus
• Nca
• Ohms
• Pad ind ctrl
• Pad input
• Passenger air bag deactivation (pad) switch (on right side of dash)
• Passenger air bag module
• Passenger safety belt retractor pretensioner
• Pin shorting bars engaged when module connector is disconnected from harness: (shorting bars connected between pins 3-4, 6-7 & 20-21)
• Preten feed
• Preten return
• Restraints control module (rcm) (behind center of dash)
• S202
• S225 (in main harn, near breakout for instrument cluster)
• S254
• S271
• S299
• Shorting bar
• Tone driver

TRANSMISSION

4WD Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 4WD Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (in backup light switch to rear light feed harn, near breakout to c1220)
• (left side of engine compt) abs control module
• (left side of transmission) digital transmission range sensor
• (pick-up)
• 4wd hi
• 4wd hi ind
• 4wd lo
• 4wd lo ind
• 4wd sw
• 87a
• Auxiliary relay box 3 (left rear side of engine compartment)
• Bpp sw
• Brake pedal position switch (behind left side of dash, above brake pedal)
• C135
• C220b
• C270a
• C270h
• C270m
• C281a
• C281b
• C281c
• C350a
• C350b
• Central junction box (lower left side of dash)
• Clutch pedal position switch
• Computer data lines connector
• Data link connector (behind center of dash)
• Dtr sensor, park brake relay, gas: speed control servo, dsl: vacuum pump motor
• Electronic shift-on-the-fly (esof) solenoid (right side of engine compt)
• Esof sol
• Excursion: pats module, eatc module
• Exterior lights system
• Four-wheel drive control module (behind right side of dash)
• Four-wheel drive switch
• Fuse 10a
• Fuse 15a
• Fuse 30a
• G100 (left rear side of engine compt)
• G201 (behind left side of dash)
• G300 (at floor, in left front footwell)
• Ground
• Hi to lo
• Hot at all times
• Hot in run
• Hot in run or acc
• Hot in run or start
• Hot in start
• Ign (st)
• Ign (st/run)
• Illum
• Instrument cluster
• Instrument cluster, windshield wiper motor, pickup: fuel tank selector switch
• Interior lights system
• Iso bus
• Lo to hi
• Main light switch, accelerator pedal position sensor, main light switch, instrument cluster, auxiliary powertrain control module, grade/load switch, clutch triple function switch jumper, overdrive cancel switch
• Motor 2
• Motor 3
• Motor 4
• Motor 5
• Nuet sens
• Off
• Pickup
• Red
• Ref volt
• Reverse
• S124
• S199
• S201
• S205 (behind left side of dash)
• S225 (behind instrument cluster)
• S228
• S250
• S253 (main harn, at breakout for instrument cluster)
• S254
• S255
• S257
• S271
• S275
• Shift sol
• Transfer case assembly
• Transfer case high to low relay
• Transfer case low to high relay
• Vpwr
• Vss in
• Vss out

5.4L

5.4L, A/T Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 5.4L, A/T Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (5.4l calif) s133
• (backup light sw to rear light feed harn, near breakout for auto trans module)
• (eng cntrl harn, near breakout for brake pressure switch)
• (eng cntrl harn, near breakout for g100 s122
• (in main harn, near breakout to brake pedal position switch)
• (left side of firewall) powertrain control module (pcm)
• 4-wheel drive control module, pats module, eatc module
• 4r100 transmission
• Bpp sw
• Brake pedal position switch
• C175
• C270a
• C270f
• C270h
• Ccs
• Central junction box (lower left side of dash)
• Cht
• Coast clutch
• Computer data lines system
• Control solenoids
• Cylinder head temperature sender (on right cylinder head)
• Data
• Digital transmission range sensor (left side of transmission)
• Electronic pressure
• Engine controls
• Epc
• Exterior lights system
• Fuse 10a
• Fuse 20a
• G100 (left rear of engine compt)
• G101 (left rear of engine compt)
• G300 (at floor, in left front footwell)
• Ground
• Hot at all times
• Hot in run or start
• Iat
• Maf
• Main light switch, accelerator pedal position sensor, main light switch, instrument cluster, overdrive cancel switch
• Mass airflow sensor (left front of engine compt)
• Nca
• Near breakout for g101)
• Oss
• Output shaft speed sensor (top of transmission extension housing)
• Overdrive cancel switch
• Pcm power diode
• Pcm power relay
• R p
• Red
• S106
• S114 (eng cntrl narn near breakout for g101)
• S123 (in eng cntrl harn, near breakout for powertrain control module)
• S132
• S138
• S139
• S162
• S170 (calif)
• S201
• S205
• S228
• S271
• Scp (+)
• Scp (-)
• Shift 1
• Shift 2
• Sig rtn
• Ss1
• Ss2
• Tcc
• Tcil
• Tcs
• Tft
• Throttle position (tp) sensor (on throttle body)
• Tr1
• Tr2
• Tr3
• Tr4
• Transmission converter clutch
• Transmission fluid temperature sensor
• Tss
• Turbine shaft speed sensor (top of transmission at converter housing)
• Vpwr
• Vref

6.0L DIESEL

6.0L Diesel, A/T Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, A/T Wiring Diagram (1 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• (in engine con- trol sensor & fuel charge harn, at break- out for air charge temp sensor)
• (in engine control harn, near breakout for g101)
• (in main harn, near breakout to brake pedal position switch) s224
• (maf) sens out
• Acc
• Brake ped pos sw
• Brake pedal position (bpp) switch (behind left side of dash, above brake pedal)
• Brake pressure switch, egr valve actuator, injection pressure regulator, glow plug control module
• C1381a
• C1381c
• C270a
• C270h red
• Can bus 1h
• Can bus 1l
• Central junction box (behind lower left side of dash)
• Chassis gnd
• Cool temp sens
• Data link connector (dlc) (behind left side of dash)
• Egr thrtl pos
• Engine coolant temperature (ect) sensor
• Fuse 10a
• Fuse 20a
• Fuse 30a
• G100
• G101
• G300 (on vehicle floor, in left front footwell)
• Grade/load switch
• Grd/load sw
• Hot at all times
• Hot in run or start
• Ignition switch
• Injector driver module, fuel heater relay
• Intk air temp sens
• Lock
• Maf sens sig rtn
• Main light switch, accelerator pedal position sensor, main light switch, instrument cluster, auxiliary powertrain control module, clutch triple function switch jumper, grade/load switch
• Mass airflow (maf) sensor
• Nca
• Off
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm) (on left side of firewall)
• Pwr gnd
• Pwr in
• Red
• Ref volt
• Run
• S101
• S106
• S114
• S123
• S162
• S190
• S192
• S271
• Sig rtn
• Start
• Throttle position (tps) sensor
• To fuel pump relay

6.0L Diesel, A/T Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.0L Diesel, A/T Wiring Diagram (2 of 2) for Ford Cab & Chassis F350 Super Duty 2003:

• (epc) sol 1 ctrl
• (epc) sol 2 ctrl
• (epc) sol 3 ctrl
• (epc) sol 4 ctrl
• (epc) sol 5 ctrl
• (epc) sol common
• (in back-up light switch to
• (iss) sens in
• (on left side of firewall)
• (oss) sens in
• (tcc) sol ctrl
• (tcil) ctrl
• (tft) sens
• (tft) sens in
• (tss) sens in
• (w/ elec- tronic shift on the fly)
• Automatic transmission 5r110
• C1381b
• C281b
• Exterior lights system
• Four- wheel drive control module (behind right side of dash)
• In breakout to transmission)
• Intermediate shaft
• Line press sol
• Neutral sw sen
• Output shaft speed (oss) sensor (on top of transmission extension housing)
• Powertrain control module (pcm)
• Pressure control solenoid
• Pressure sw 1 in
• Pressure sw 2 in
• Pressure sw 3 in
• Pressure sw 4 in
• Pressure sw 5 in
• Rear light feed harness,
• Ref volt
• Rev lmp rly ctrl
• S127
• S128 (in back-up light switch to rear light feed harn, near breakout for transmission)
• S129
• Sig rtn
• Speed sensor
• Speed sensor assembly
• Tran range sens
• Transmission fluid temperature sensor
• Transmission range sensor (trs)
• Turbine shaft speed sensor

6.8L

6.8L, A/T Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 6.8L, A/T Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (5.4l calif) s133
• (backup light sw to rear light feed harn, near breakout for auto trans module)
• (eng cntrl harn, near breakout for brake pressure switch)
• (eng cntrl harn, near breakout for g100 s122
• (in main harn, near breakout to brake pedal position switch)
• (left side of firewall) powertrain control module (pcm)
• 4-wheel drive control module, pats module, eatc module
• 4r100 transmission
• Bpp sw
• Brake pedal position switch
• C175
• C270a
• C270f
• C270h
• Ccs
• Central junction box (lower left side of dash)
• Cht
• Coast clutch
• Computer data lines system
• Control solenoids
• Cylinder head temperature sender (on right cylinder head)
• Data
• Digital transmission range sensor (left side of transmission)
• Electronic pressure
• Engine controls
• Epc
• Exterior lights system
• Fuse 10a
• Fuse 20a
• G100 (left rear of engine compt)
• G101 (left rear of engine compt)
• G300 (at floor, in left front footwell)
• Ground
• Hot at all times
• Hot in run or start
• Iat
• Maf
• Main light switch, accelerator pedal position sensor, main light switch, instrument cluster, overdrive cancel switch
• Mass airflow sensor (left front of engine compt)
• Nca
• Near breakout for g101)
• Oss
• Output shaft speed sensor (top of transmission extension housing)
• Overdrive cancel switch
• Pcm power diode
• Pcm power relay
• R p
• Red
• S106
• S114 (eng cntrl narn near breakout for g101)
• S123 (in eng cntrl harn, near breakout for powertrain control module)
• S132
• S138
• S139
• S162
• S170 (calif)
• S201
• S205
• S228
• S271
• Scp (+)
• Scp (-)
• Shift 1
• Shift 2
• Sig rtn
• Ss1
• Ss2
• Tcc
• Tcil
• Tcs
• Tft
• Throttle position (tp) sensor (on throttle body)
• Tr1
• Tr2
• Tr3
• Tr4
• Transmission converter clutch
• Transmission fluid temperature sensor
• Tss
• Turbine shaft speed sensor (top of transmission at converter housing)
• Vpwr
• Vref

7.3L DIESEL

7.3L Diesel, A/T Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for 7.3L Diesel, A/T Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (backup light switch to rear light feed harn, near breakout for auto trans module)
• (eng cntrl harn, near breakout for g100) s122
• (eng cntrl harn, near breakout for g101)
• (left side of engine compt)
• (left side of firewall) powertrain control module (pcm)
• (main harn, near breakout to brake pedal position switch)
• 4-wheel drive control, pats & eatc module
• 4r100 transmission
• Accelerator pedal position sensor (on accelerator pedal support)
• App
• Bpp sw
• Brake pedal position switch
• C175
• C270a
• C270f
• C270g
• C270h
• Ccs
• Central junction box (lower left side of dash)
• Coast clutch
• Computer data lines system
• Control solenoids
• Data
• Digital transmission range sensor (left side of transmission)
• Electronic pressure
• Engine controls
• Epc
• Exterior lights system
• Fuse 10a
• Fuse 20a
• G100 (left rear of engine compt)
• G101
• G300 (at floor, in left front footwell)
• Ground
• Hot at all times
• Hot in run or start
• Iat
• Intake air temperature sensor (left side of engine compt)
• Main light switch, accelerator pedal position sensor, main light switch, instrument cluster, auxiliary powertrain control module, clutch triple function switch jumper, overdrive cancel switch
• Nca
• Near breakout for g101)
• Oss
• Output shaft speed sensor (top of transmission extension housing)
• Overdrive cancel switch
• Pcm power diode
• Pcm power relay
• R p
• Red
• S106
• S114
• S123 (eng cntrl harn, near breakout for g100)
• S138
• S139
• S162
• S170 (eng cntrl harn, near breakout for brake pressure switch)
• S201
• S205
• S228
• S271
• Scp (+)
• Scp (-)
• Shift 1
• Shift 2
• Sig rtn
• Ss1
• Ss2
• Tcc
• Tcil
• Tcs
• Tft
• Tr1
• Tr2
• Tr3
• Tr4
• Transmission converter clutch
• Transmission fluid temperature sensor
• Tss
• Turbine shaft speed sensor (top of transmission, at converter housing)
• Vbatt
• Vpwr
• Vref

WARNING SYSTEMS

Warning Systems Wiring Diagram, with Remote/Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Warning Systems Wiring Diagram, with Remote/Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003:

• (at left ``c" pillar)
• (at left ``c'' pillar)
• (behind left side of dash)
• (excursion)
• (excursion) g301
• (excursion, pickup w/ power equipment except crew cab) (pickup w/o power equipment) (crewcab w/ power equipment)
• (pickup) (at left ``c" pillar)
• (pickup) g900
• Air bag sliding contact
• Auto
• C205a
• C2113a
• C2113b
• C2113c
• C220a
• C220b
• C220c
• C270a
• C270b
• C270e
• Central junction box (behind lower left side of dash)
• Data link connector (dlc)
• Driver side front door ajar switch
• Driver side rear door ajar switch
• Excursion
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 5a
• G300 (on vehicle floor, in left front footwell)
• G301 g900 (pickup) (at left (at left ``c" pillar)
• G900 g301 (excursion) (at left ``c" pillar)
• G901 (at rear of vehicle roof)
• Head
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Instrument cluster
• Key warning switch
• Left liftgate ajar switch
• Main light switch
• Nca
• Off
• Park
• Passenger side front door ajar switch
• Passenger side rear door ajar switch
• Restraints control module (behind center of dash)
• Right liftgate ajar switch
• S201
• S214
• S233
• S247 (near breakout to passenger air bag module)
• S254
• S271
• S300
• S307 (in body main harness, near breakout for driver's seat module)
• S332
• S440
• S501
• S639
• Safety belt buckle switch (in driver's seat belt buckle)
• Vehicle security module (behind left side of dash)
• ``c" pillar)

Warning Systems Wiring Diagram, without Remote/Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Warning Systems Wiring Diagram, without Remote/Keyless Entry for Ford Cab & Chassis F350 Super Duty 2003:

• (at left ``c" pillar) (excursion) g301
• (excursion)
• (w/ pwr equip) w/o pwr equip)
• Air bag sliding contact
• Auto
• C205a
• C2113a
• C2113b
• C2113c
• C220a
• C220b
• C220c
• C270a
• C270b
• C270e
• Central junction box (behind lower left side of dash)
• Data link connector (dlc) (behind left side of dash)
• Driver side front door ajar switch
• Driver side rear door ajar switch
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 5a
• G300 (on vehicle floor, in left front footwell)
• G301 g900 (pickup) (at left (at left ``c" pillar)
• G900 (at left ``c" pillar)
• G900 (pickup) (at left ``c" pillar)
• Head
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Instrument cluster
• Key warning switch
• Main light switch
• Nca
• Off
• Park
• Passenger side front door ajar switch
• Passenger side rear door ajar switch
• Restraints control module (behind center of dash)
• S201
• S214
• S247 (in main harness, near breakout to passenger air bag module)
• S254
• S271
• S300
• S307 (in body main harness, near breakout for driver's seat module)
• S332
• S501 s300
• S639
• Safety belt buckle switch (in driver's seat belt buckle)
• Vehicle security module (behind left side of dash)
• W/ 4 speaker audio system
• W/ crew cab
• W/o 4 speaker audio system
• W/o crew cab
• ``c" pillar)

WIPER/WASHER

Wiper/Washer Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003

List of elements for Wiper/Washer Wiring Diagram for Ford Cab & Chassis F350 Super Duty 2003:

• (on top left side of firewall) windshield wiper motor
• 1. off 2. interval 1 3. interval 2 4. interval 3 5. interval 4 6. interval 5 7. low 8. high
• Abs control module (at left side of engine compartment)
• C202b
• C270a
• C270m
• Central junction box (cjb) (behind lower left side of dash)
• Fuse 106 30a
• Fuse 33 15a
• G100 (at left rear side of engine compt)
• G108 (at right side of engine compt)
• G202 (behind left side of dash)
• G300 (on vehicle floor, in left front footwell)
• Hot at all times
• Hot in run or acc
• Interval switch
• Multi-function switch
• Red
• Rest
• Run
• S115
• S162
• S172
• S180
• S218
• S254
• Solid state
• Washer switch
• Windshield washer pump motor (on right side of engine compt)
• Windshield washer relay
• Wiper high/low relay
• Wiper run/park relay