relay FORD SUPER DUTY 2015 3.G Owners Manual

TOWING A TRAILER
WARNINGS
Do not exceed the GVWR orthe GAWR specified on thecertification label.
Towing trailers beyond themaximum recommendedgross trailer weight exceeds thelimit of the vehicle and couldresult in engine damage,transmission damage, structuraldamage, loss of vehicle control,vehicle rollover and personalinjury.
Your vehicle may have electricalitems, such as fuses or relays,related to towing. See the Fuseschapter.
Your vehicle's load capacitydesignation is by weight, not byvolume, so you cannot necessarilyuse all available space whenloading a vehicle.
Towing a trailer places an extraload on your vehicle's engine,transmission, axle, brakes, tiresand suspension. Inspect thesecomponents periodically during,and after, any towing operation.
Load Placement
To help minimize how trailermovement affects your vehiclewhen driving:
•Load the heaviest items closestto the trailer floor.
•Load the heaviest itemscentered between the left andright side trailer tires.
•Load the heaviest items abovethe trailer axles or just slightlyforward toward the trailertongue. Do not allow the finaltrailer tongue weight to goabove or below 10-15% of theloaded trailer weight.
•Select a tow bar with thecorrect rise or drop. When boththe loaded vehicle and trailerare connected, the trailer frameshould be level, or slightlyangled down toward yourvehicle, when viewed from theside.
When driving with a trailer orpayload, a slight takeoff vibrationor shudder may be present due tothe increased payload weight.Additional information regardingproper trailer loading and settingyour vehicle up for towing islocated in another chapter of thismanual. See Load Limit (page178). You can also find theinformation in the RV & TrailerTowing Guide, available at anauthorized dealer.
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FUSE SPECIFICATION CHART
Power Distribution Box
WARNINGS
Always disconnect the battery beforeservicing high current fuses.
To reduce risk of electrical shock,always replace the cover to thepower distribution box beforereconnecting the battery or refilling fluidreservoirs.
The power distribution box is located inthe engine compartment. It hashigh-current fuses that protect yourvehicle's main electrical systems fromoverloads.
If you disconnect and reconnect thebattery, you will need to reset somefeatures. See Changing the 12V Battery(page 244).
Protected componentsFuse amp ratingFuse or relay number
Blower motorRelay1
Not used—2
Urea heaters (diesel engine)Relay3
Not used—4
Heated mirrorsRelay5Rear window defroster
Not used—6
Heated mirrors50A*7Rear window defroster
Passenger seat30A*8
Driver seat30A*9
Trailer tow40A*10
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Protected componentsFuse amp ratingFuse or relay number
Not used—11
Driver smart window motor30A*12
Not used—13
Not used—14
Fuel pump (diesel engine)Diode15
Not used—16
Heated mirror15A**17
Not used—18
Not used—19
Not used—20
Not used—21
Trailer tow electric brake30A*22
Blower motor40A*23
Not used—24
Wipers30A*25
Trailer tow park lamps30A*26
Urea heaters (diesel engine)25A*27
Buss bar—28
Trailer tow park lampsRelay29
A/C clutchRelay30
WipersRelay31
Not used—32
Vehicle power 115A**33
Vehicle power 2 (diesel engine)15A**34
Vehicle power 2 (gas engine)20A**
Vehicle power 310A**35
Vehicle power 4 (diesel engine)15A**36
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Protected componentsFuse amp ratingFuse or relay number
Vehicle power 4 (gas engine)20A**
Vehicle power 5 (diesel engine)10A**37
Electronic control module (diesel engine)Relay38Powertrain control module (gas engine)
4x4 hub lock10A**39
4x4 electronic lock15A**40
Not used—41
Rear heated seats20A**42
Not used—43
Not used—44
Run/start relay coil10A**45
Transmission control module keep-alivepower (diesel engine)10A**46
A/C clutch feed10A**47
Run/startRelay48
Rearview camera system10A**49
Blower motor relay coil10A**50
Not used—51
Electronic control module10A**52Powertrain control module,Transmission control module run/start
4x4 module10A**53
Anti-lock brake system run/start10A**54
Rear window defroster coil10A**55
Passenger compartment fuse panel run/start feed20A**56
Fuel pumpRelay57
Not used—58
Not used—59
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Protected componentsFuse amp ratingFuse or relay number
Not used—60
Not used—61
Not used—62
Not used—63
Not used—64
Not used—65
Fuel pump20A**66
Not used—67
Fuel pump relay coil10A**68
Not used—69
Trailer tow backup lamp10A**70
Canister vent (gas engine)10A**71
Electronic control module relay coil feedkeep-alive power10A**72
Powertrain control module
Not used—73
Not used—74
Not used—75
Trailer tow backup lampRelay76
Not used—77
Not used—78
Not used—79
Not used—80
Not used—81
Auxiliary power point #220A*82
Auxiliary power point #120A*83
4x4 shift motor30A*84
Heated/cooled seats30A*85
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Protected componentsFuse amp ratingFuse or relay number
Anti-lock brake system coil feed25A*86
Auxiliary power point #520A*87
Auxiliary power point #620A*88
Starter motor40A*89
Trailer tow battery charge25A*90
Not used—91
Auxiliary power point #420A*92
Auxiliary power point #320A*93
Auxiliary switch #125A*94
Auxiliary switch #225A*95
Anti-lock brake system pump50A*96
Inverter40A*97
Not used—98
Instrument panel power inverter40A*99
Not used—100
StarterRelay101
Not used—102
Not used—103
Not used—104
Not used—105
Not used—106
Not used—107
*Cartridge fuses
**Mini fuses
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Passenger Compartment FusePanel
The fuse panel is in the passenger footwell.Remove the panel cover to access thefuses.
Pull the fuse panel cover toward you toremove it. When the clips of the paneldisengage, let the panel fall easily.
Use the provided fuse puller tool to removea fuse. It is on the fuse panel cover.
Protected componentsFuse amp ratingFuse or relay number
Not used (spare)30A1
Auxiliary switch relay #415A2
Passenger smart window motor30A3
Hood lamp10A4Interior lights
Moonroof20A5
Driver seat module5A6
Driver lumbar motor7.5A7Driver seat switch
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Protected componentsFuse amp ratingFuse or relay number
Power mirror switch10A8
Auxiliary switch relay #310A9
Customer access feed10A10Run/accessory relay
Instrument cluster10A11
Interior lighting15A12Lighted running board lamps
Right turn signals and brake lamps15A13
Left turn signals and brake lamps15A14
Backup lamps, Trailer tow backup relay15A15High-mounted stop lampsReverse signal interior mirror
Right low beam headlamp10A16
Left low beam headlamp10A17
Brake shift interlock10A18Keypad illuminationPassive anti-theft transceiverPowertrain control module
Amplifier20A19Subwoofer
Power door locks20A20
Brake on/off switch10A21
Horn20A22
Not used (spare)15A23
Diagnostic connector15A24Electronic finish panelPower fold mirror relayRemote keyless entrySteering wheel control module
Not used (spare)15A25
Steering wheel control module5A26
Not used (spare)20A27
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Protected componentsFuse amp ratingFuse or relay number
Ignition switch15A28
GPS module20A29RadioSYNC
Parking lamp relay15A30Trailer tow parking lamp relay
Customer access5A31Trailer brake controller (brake signal)
Auto dimming mirror15A32Driver and passenger door lock switchilluminationDriver and passenger smart window motorMoonroof motorPassenger window switchPower inverterRear heated seat switch illuminationTelescoping mirror switch
Restraint control module10A33
Heated steering wheel module10A34Rear heated seats module
Reverse park aid module5A35Select shift switchTrailer brake control module
Fuel tank select switch10A36
Positive temperature coefficient heater10A37
AM/FM base radio10A38
High beam headlamps15A39
Parking lamps (in mirrors)10A40Roof marker lamps
Passenger airbag deactivation indicator7.5A41
Not used (spare)5A42
Wiper relay10A43
Auxiliary switches10A44
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Protected componentsFuse amp ratingFuse or relay number
Not used (spare)5A45
Climate control10A46
Fog lamps15A47Fog lamp indicator (in switch)
Power rear sliding window switch30A Circuit breaker48Power windows switchMoonroof switch
Delayed accessoryRelay49
CHANGING A FUSE
Fuses
WARNING
Always replace a fuse with one thathas the specified amperage rating.Using a fuse with a higher amperagerating can cause severe wire damage andcould start a fire.
If electrical components in the vehicle arenot working, a fuse may have blown. Abreak in the fuse wire will indicate a blownfuse. Check the appropriate fuses beforereplacing any electrical components.
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