2019 FORD F-53 relay

TOWING A TRAILER
WARNING: Towing trailersbeyond the maximumrecommended gross trailerweight exceeds the limit of yourvehicle and could result in enginedamage, transmission damage,structural damage, loss ofvehicle control, vehicle rolloverand personal injury.
WARNING: Do not exceedthe GVWR or the GAWRspecified on the certificationlabel.
Note: See RecommendedTowing Weights (page 51).
Your vehicle may have electricalitems, such as fuses or relays,related to towing. See Fuses(page 71).
Your vehicle's load capacitydesignation is by weight, not byvolume, so you cannot necessarilyuse all available space whenloading a vehicle or trailer.
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 ball mount with thecorrect rise or drop and loadcapacity. When both theloaded vehicle and trailer areconnected, 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 (page45).
You can also find information inthe RV & Trailer Towing Guideavailable at your authorizeddealer, or online.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Towing

Protected ComponentFuse RatingFuse or RelayNumber
Power brake assist module – HydroMax.5A11
Air conditioning compressor clutch.10A12
Catalyst monitor sensor.20A13Engine heated exhaust gas oxygen sensor#11 and #21.Canister vent.Vapor management valve.
Powertrain control module relay coil.5A14Powertrain control module keep alivememory.
Powertrain control module power.20A15
Instrument panel dimmer module.20A16Park lamp feeds.Trailer tow running lamp relay coil.
Ignition coils.20A17Radio capacitors.
HydroMax – Anti-lock brake systemmodule.30A18
Powertrain control module.10A19
Daytime running lamps.20A110
Fuel pump relay coil.20A111Powertrain control module.Fuel pump diode.
Instrument panel - backup lamp feed.25A112Trailer tow backup lamps feed.
Trailer tow electric brake controller feed.30A213
Instrument panel battery feed (fuse #15,21).60A214
Lighting primary fuse.Power distribution box fuse #19.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
Trailer tow park lamps.20A215
Anti-lock brake system module –HydroMax.60A216
Anti-lock brake system module – Hydro-boost.40A2
Horn feed.20A217
Backup lamp relay coil.20A218A/C clutch coil.A/C demand switch.
Brake on/off switch.20A219Multifunction switch.
Powertrain control module relay (Powerdistribution box fuses # 3, 5, 7, 18).30A220
Fuel injectors.20A221Fuel pump motor.Mass air flow sensor.Powertrain control module.
Cigar lighter feed.20A222Diagnostic tool connector.Fleet Telematics Modem and Ford PassConnect.
Blower motor feed.40A223
Instrument panel battery feed (fuses #4,10, 16, 22).50A224
Ignition switch feed (Instrument panelfuses #1, 5, 7, 11, 13, 14, 17, 19, 23, 36; Powerdistribution box fuses #9, 11).
40A225
Fuse holder #2.
Ignition switch feed (Instrument panelfuses #5, 11, 17, 23, 38).40A226
Headlamps.30A227Daytime running lamps on/off relay coil.Headlamp daytime running lamp relayfeed.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
High beam headlamps flash to pass.
Starter relay feed.30A228Body builder.Starter motor solenoid.
HydroMax motor B+.60A229HydroMax motor relay coil.Fuse holder #1.
Anti-lock brake system module – Hydro-boost.40A2
A/C clutch relay.—R1
Fuel pump relay.—R2
Horn relay.—R3
Starter relay.—R4
Blower motor relay.—R5
Powertrain control module relay.—R6
Fuel pump diode.—Diode 1
Air conditioning clutch diode.—Diode 2
1 Mini fuse.2 Maxi fuse.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

F59 Power Distribution Box
Protected ComponentFuse RatingFuse or RelayNumber
Air conditioning compressor clutch.10A1F1
Anti-lock brake system - HydroMax.30A1F2
Powertrain control module keep alivememory.5A1F3
Powertrain control module relay coil.
Not used.—F4
Trailer tow running lamp relay coil.20A1F5Park lamp feeds.Instrument panel dimmer module.
Not used.—F6
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-FusesE197657

Protected ComponentFuse RatingFuse or RelayNumber
Trailer tow backup lamp feed.25A1F7Backup lamp feed.
Not used.—F8
Daytime running lamps.20A1F9
Not used.—F10
Not used.—F11
Not used.—F12
Not used.—F13
Not used.—F14
Power brake assist module (HydroMax).5A1F15
Powertrain control module power.20A1F16
Catalyst monitor sensor.20A1F17Engine heated exhaust gas oxygen sensor#11 and #21.Canister vent valve.Vapor management valve.
Radio capacitors.20A1F18Ignition coils.
Powertrain control module.10A1F19
HydroMax module brake on/off relay feed.10A1F20
Powertrain control module.20A1F21Fuel pump diode.Fuel pump relay coil.
Brake transmission shift interlock.10A1F22
Not used.—F23
Not used.—F24
Blower motor relay feed.40A2J1
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
Headlamps.30A2J2High beam headlamps flash to pass.Headlamp daytime running lamp relayfeed.
Powertrain control module relay feed.30A2J3Power distribution box fuse F16, F17, F18,J22.
Cigar lighter feed.20A2J4Diagnostic tool connector.Fleet Telematics Modem and Ford PassConnect.
Not used.—J5
Starter relay feed.30A2J6Starter motor solenoid.
Anti-lock brake system module (Hydro-boost).40A2J7
Power brake assist motor (HydroMax).60A2
Power distribution box fuse #F20.
Trailer tow park lamps.20A2J8
Instrument panel fuse #F11, F13, F15, F17.50A2J9
HydroMax anti-lock brake system module.60A2J10
Hydroboost anti-lock brake systemmodule.40A2
Fuel pump relay feed.20A2J11Fuel injectors.Mass air flow sensor.Fuel pump motor.Powertrain control module.
Trailer tow electronic brake.30A2J12
Ignition switch feed (instrument panelfuses #F2, F20, F4, F22, F6, F21, F24, F8,F26, F10).
40A2J13
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses

Protected ComponentFuse RatingFuse or RelayNumber
(Power distribution box fuse #F19, F22,F21).
Not used.—J14
Instrument panel battery feed (fuse #F3,F5).60A2J15
Lighting primary fuse.
Horn.20A2J16
Ignition switch feed (instrument panelfuses F20, F22, F24, F26, F18).40A2J17
Brake on/off switch.20A2J18Multifunction switch.
Not used.—J19
Not used.—J20
Not used.—J21
Reverse lamp relay coil.20A2J22A/C clutch relay coil.A/C demand switch.
Horn relay.—R1
Fuel pump relay.—R2
Starter relay.—R3
Backup lamps relay.—R4
Brake on/off signal isolating relay(Hydromax).—R5
Trailer tow parking lamps relay.—R6
Not used.—R7
A/C clutch relay.—R8
Not used.—R9
Starter relay.—R10
Blower motor relay.—R11
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201803, Third-Printing-Fuses