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Protected componentsFuse amp ratingFuse or relay number
Fuel pump.DiodeD2
Air conditioning.DiodeD3
Not used.—R2-1
Powertrain control module vehicle power.30A**J1
Fuel pump.20A**J2
Cigar lighter power point.20A**J3Diagnostic connector.
Blower motor.40A**J4
Headlamps.30A**J5Daytime running lamps on/off relay coil.Headlamp daytime running lamp relayfeed.
Ignition switch feeds (instrument panelfuses #F26).40A**J6
Ignition switch feeds (instrument panel#F21, F26).40A**J7
Instrument panel fuse box F11, F13, F15.50A**J8
Starter relay feed.30A**J9
4–channel anti-lock brake system module(Hydromax).60A**J10
Trailer tow electronic brake.30A**J11
Lighting (instrument panel fuses #F3, F5;power distribution box M1-2).60A**J12
Vehicle power 3.20A**J13
Horn.20A**J14
4–channel anti-lock brake system module.60A**J15
Trailer tow parking lamps.20A**J16
*Mini fuse.**J-case fuse.
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Diode and Relay ModuleLocate the module box with the powerdistribution box in from of the radiator.
Protected componentsRelay location
Not used.1
Not used.2
Not used.3
Daytime running lamps power relay.4
Hydromax – brake on/off signal isolating relay.5
Reverse lamps relay.6
Starter ground relay.7
Trailer tow parking lamps relay.8
Fuse Holder Module
Locate the fuse holder next to the diodeand relay module.
Protected componentsFuse amp ratingFuse number
Hydromax – brake on/off signal.10A1
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F53/F59 Passenger CompartmentFuse Panel
Locate this fuse panel below and to theleft of the steering wheel near the brake
pedal. Remove the panel cover to accessthe fuses.
To remove a fuse, use the fuse panelcover's fuse puller tool.
Protected componentsFuse amp ratingFuse or relay number
Multi function switch.20A1
Not used.—2
Not used.—3
Instrument cluster.10A4
Body builder accessory feed (accessoryand run).10A5
Not used.—6
Blower motor relay coil.15A7
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Protected componentsFuse amp ratingFuse or relay number
Brake lamps feed.10A8
Stop lamps: Vehicle direction indicatorsand stop lamps, Body builder rear directionindicators and stop feeds, Body builderstop lamp feed.
20A9
Instrument cluster memory.10A10
Wiper/washer module.30A11Wiper feed.
Not used.—12
Anti-lock brake system module –Hydromax.10A13
Anti-lock brake system module – Hydro-boost.10A14
Instrument cluster run/start.
Left-hand direction indicator feed.15A15
Body builder battery (+12V) feed.20A16
Body builder radio feed.5A17
Not used.—18
Daytime running lamps relays.5A19
Not used.—20
Right-hand direction indicator feed.15A21
Trailer tow direction indicators.20A22
Cluster run/accessory.10A23
Not used.—24
Body builder right-hand low beam head-lamp feed.10A25
Brake shift interlock diode and solenoid.10A26
Not used.—27
Not used.—28
Not used.—29
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Protected componentsFuse amp ratingFuse or relay number
Not used.—30
Body builder left-hand low beam head-lamp feed.10A31
Not used.—32
Body builder reverse lamp power.10A33
Body builder reverse gear.10A34Trailer tow reverse lamps.
Body builder high beam feed.20A35High beam indicator.
Transmission control switch.10A36
Not used.—37
Body builder run feed.10A38
Not used.—39
Not used.—40
Instrument cluster lighting.10A41
Not used.—42
Not used.—43
Not used.—44
Trailer tow right-hand direction indicator.—Relay 1
Trailer tow left-hand direction indicator.—Relay 2
Right-hand direction indicator.—Relay 3
Left-hand direction indicator.—Relay 4
Not used.—Relay 5
Daytime running lamps.—Relay 6Parking brake.
Daytime running lamps on/off.—Relay 7
Brake transmission shift interlock.—Diode 1
Brake transmission shift interlock.—Diode 2
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Protected componentsFuse amp ratingFuse or relay number
Not used.—F1
Not used.—F2
Not used.—F3
Brake transmission shift interlock.10AF4
Not used.—F5
Not used.—F6
Not used.—F7
Not used.—F8
Not used.—F9
Not used.—F10
Not used.—F11
Not used.—F12
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Protected componentsFuse amp ratingFuse or relay number
Cluster battery (+12V) #1.10AF11
UPS brake transmission shift interlock.5AF12
Cluster battery (+12V) #2.10AF13
Switch illumination.10AF14
Body builder battery (+12V) feed.20AF15
Not used.—F16
Trailer tow run relay feed.20AF17
Body builder run.10AF18
Brake lamp feed.10AF19
Body builder run.10AF20
Run/start.10AF21
Wiper module battery (+12V).30AF22
Reverse lamps.10AF23
Body builder radio.5AF24
Trailer tow reverse lamps.10AF25
Cluster run/start.10AF26
Body builder high beam feed.20AF27
Daytime running lamps.—R1Parking brake.
Daytime running lamps on/off.—R2
Right-hand direction indicator.—R3
Trailer tow right-hand direction indicator.—R4
Left-hand direction indicator.—R5
Trailer tow left-hand direction indicator.—R6
Not used.—R7
Not used.—R8
Not used.—R9
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GENERAL INFORMATION
Have your vehicle serviced regularly to helpmaintain its roadworthiness and resalevalue. There is a large network ofauthorized dealers that are there to helpyou with their professional servicingexpertise. We believe that their speciallytrained technicians are best qualified toservice your vehicle properly and expertly.They are supported by a wide range ofhighly specialized tools developedspecifically for servicing your vehicle.
To help you service your vehicle, weprovide scheduled maintenanceinformation which makes tracking routineservice easy. See ScheduledMaintenance (page 128).
If your vehicle requires professional service,an authorized dealer can provide thenecessary parts and service. Check yourwarranty information to find out whichparts and services are covered.
Use only recommended fuels, lubricants,fluids and service parts conforming tospecifications. Motorcraft® parts aredesigned and built to provide the bestperformance in your vehicle.
Precautions
•Do not work on a hot engine.
•Make sure that nothing gets caught inmoving parts.
•Do not work on a vehicle with theengine running in an enclosed space,unless you are sure you have enoughventilation.
•Keep all open flames and other burningmaterial (such as cigarettes) awayfrom the battery and all fuel relatedparts.
Working with the Engine Off
1.Set the parking brake and shift to park(P).
2.Switch off the engine.
3.Block the wheels.
Working with the Engine On
WARNING
To reduce the risk of vehicle damageand/or personal burn injuries, do notstart your engine with the air cleanerremoved and do not remove it while theengine is running.
1.Set the parking brake and shift to park(P).
2.Block the wheels
81Motorhome (TY3) , enUSA, First PrintingMaintenance