AIR CONDITIONING – Ford Cab & Chassis F350 Super Duty 2003 – SYSTEM WIRING DIAGRAMS

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