2019 FORD F-53 trailer

Diode and Relay ModuleLocate the module box with the powerdistribution box in from of the radiator.
Protected ComponentRelay Number
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
The fuse holder is next to the diode andrelay module.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-FusesE224614

Protected ComponentFuse RatingFuse or RelayNumber
Multifunction switch.20A11
Not used.—2
Not used.—3
Instrument cluster.10A14
Body builder accessory feed (accessoryand run).10A15
Not used.—6
Blower motor relay coil.15A17
Brake lamps feed.10A18Trailer brake control moduleBrake on/off signal.Trailer turn relay coils.
Not used.—9
Instrument cluster memory.10A110
Wiper/washer module.30A111Wiper feed.
Not used.—12
Anti-lock brake system module –HydroMax.10A113
Anti-lock brake system module – Hydro-boost.10A114
Instrument cluster run/start.
Left-hand direction indicator feed.15A115
Body builder battery (+12V) feed.20A116
Body builder radio feed.5A117
Not used.—18
Daytime running lamps relays.5A119
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
Not used.—20
Right-hand direction indicator feed.15A121
Trailer tow direction indicators.20A122
Cluster run/accessory.10A123
Not used.—24
Body builder right-hand low beam head-lamp feed.10A125
Not used.—26
Not used.—27
Not used.—28
Not used.—29
Not used.—30
Body builder left-hand low beam head-lamp feed.10A131
Not used.—32
Body builder reverse lamp power.10A133
Body builder reverse gear.10A134Trailer tow reverse lamps.
Body builder high beam feed.20A135High beam indicator.
Transmission control switch.10A136
Not used.—37
Body builder off/run.10A138
Not used.—39
Not used.—40
Instrument cluster lighting/switch illumin-ation.10A141
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
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
Not used.—Diode 1
Not used.—Diode 2
Not used.—F1
Not used.—F2
Not used.—F3
Not used.—F4
Not used.—F5
Not used.—F6
Not used.—F7
Not used.—F8
Not used.—F9
Not used.—F10
Not used.—F11
Not used.—F12
1 Micro 2 fuse.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
Right low beam headlamp.10AF7
Daytime running lamps relays.5AF8
Left low beam headlamp.10AF9
Transmission control switch.10AF10
Cluster battery (+12V) #1.10AF11
Not used.—F12
Cluster battery (+12V) #2.10AF13
Switch illumination.10AF14Instrument cluster lighting.
Body builder battery (+12V) feed.20AF15
Not used.—F16
Trailer tow direction indicators.20AF17Trailer tow stop lamps.Trailer tow hazard lamps.
Body builder off/run.10AF18
Trailer brake control module brake on/offsignal.10AF19
Body builder brake lamps.Left/right brake lamps.
Body builder run/accessory feed.10AF20
Anti-lock brake system module.10AF21Hydroboost.Instrument cluster.
Wiper/washer module.30AF22Wiper feed.
Reverse lamps.10AF23
Body builder radio feed.5AF24
Trailer tow reverse lamps.10AF25
Cluster run/accessory.10AF26
High beam indicator.20AF27
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
Headlamps hi-beam.
Daytime running lamps.Micro relayR1Parking brake.
Daytime running lamps on/off.Micro relayR2
Right-hand direction indicator.Micro relayR3
Trailer tow right-hand direction indicator.Micro relayR4
Left-hand direction indicator.Micro relayR5
Trailer tow left-hand direction indicator.Micro relayR6
Not used.—R7
Not used.—R8
Not used.—R9
Not used.—D1
Not used.—D2
Not used.—D3
CHANGING A FUSE
Fuses
WARNING: Always replace a fusewith one that has the specifiedamperage rating. Using a fuse with ahigher amperage rating can cause severewire damage and could start a fire.
If electrical components in the vehicle arenot working, a fuse may have blown. Blownfuses are identified by a broken wire withinthe fuse. Check the appropriate fusesbefore replacing any electricalcomponents.
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2.If you are a member of a roadsideassistance program, we recommendthat you contact your roadsideassistance service provider.
3.If this is not possible, wait a shortperiod for the engine to cool.
4.Check the coolant level. If the coolantlevel is at or below the minimum mark,add prediluted coolant immediately.
5.When the engine temperature cools,you can re-start the engine. Have yourvehicle checked as soon as possible tominimize engine damage.
Note:Driving your vehicle without repairincreases the chance of engine damage.
Engine Coolant TemperatureManagement (If Equipped)
WARNING: To reduce the risk ofcrash and injury, be prepared that thevehicle speed may reduce and thevehicle may not be able to acceleratewith full power until the coolanttemperature reduces.
If you tow a trailer with your vehicle, theengine may temporarily reach a highertemperature during severe operatingconditions, for example ascending a longor steep grade in high ambienttemperatures.
At this time, you may notice the coolanttemperature gauge moves toward the redzone and a message may appear in theinformation display.
You may notice a reduction in vehiclespeed caused by reduced engine power inorder to manage the engine coolanttemperature. Your vehicle may enter thismode if certain high-temperature andhigh-load conditions take place. Theamount of speed reduction depends onvehicle loading, grade and ambienttemperature. If this occurs, there is no needto pull off the road, you can continue todrive your vehicle.
The air conditioning may automaticallyturn on and off during severe operatingconditions to protect the engine fromoverheating. When the coolanttemperature decreases to the normaloperating temperature, the air conditioningturns on.
If the coolant temperature gauge movesfully into the red zone, or if the coolanttemperature warning or service enginesoon messages appear in your informationdisplay, do the following:
1.Pull off the road as soon as safelypossible and shift the transmission intopark (P).
2.Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. Afterseveral minutes, if the temperaturedoes not drop, follow the remainingsteps.
3.Switch the engine off and wait for it tocool. Check the coolant level.
4.If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5.If the coolant level is normal, restartthe engine and continue.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Maintenance

AUTOMATIC TRANSMISSION
FLUID CHECK
WARNING: The dipstick andsurrounding components are hot. Usegloves when moving components andchecking the transmission fluid level.Failure to follow this warning could resultin serious personal injury.
Note:Automatic transmission fluidexpands when warmed. To obtain anaccurate fluid check, drive the vehicle untilit is at normal operating temperature(approximately 20 mi (30 km)). If yourvehicle has been operated for an extendedperiod at high speeds, in city traffic duringhot weather or pulling a trailer, the vehicleshould be turned off for about 30 minutesto allow fluid to cool to normal operatingtemperature 196°F - 215°F (91°C - 102°C)before checking.
Refer to your scheduled maintenanceinformation for scheduled intervals for fluidchecks and changes.
Your transmission does not consume fluid.However, the fluid level should be checkedif the transmission is not working properly,(i.e., if the transmission slips or shiftsslowly) or if you notice some sign of fluidleakage. To check the fluid level:
1.Drive the vehicle 20 mi (30 km) or untilit reaches normal operatingtemperature
2.Park the vehicle on a level surface andengage the parking brake
3.With the engine running, parking brakeengaged and your foot on the brakepedal, move the gearshift lever throughall of the gear ranges. Allow sufficienttime for each gear to engage
4.Latch the gearshift lever in P (Park)and leave the engine running.
5.Remove the dipstick, wiping it cleanwith a clean, dry lint free rag. Ifnecessary, refer to Under HoodOverview in this chapter for thelocation of the dipstick.
6.Install the dipstick making sure it is fullyseated in the filler tube.
7.Remove the dipstick and inspect thefluid level. The fluid should be in thedesignated area for normal operatingtemperature or ambient temperature.
Do not use supplemental transmissionfluid additives, treatments or cleaningagents. The use of these materials mayaffect transmission operation and resultin damage to internal transmissioncomponents.
Low fluid level
Do not drive the vehicle if there is noindication of fluid on the dipstick and theambient temperature is above 50°F(10°C).
Correct fluid level
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-MaintenanceE161551 E161552