2018 FORD F-53 tow

Protected Components
Fuse Rating
Fuse or Relay
Number
Air conditioning clutch diode.
—
D2
Not used.
—
D3
Not used.
—
C1
1 Mini fuse.
2 J case fuse.
UPS Power Distribution Box 1 Protected Components
Fuse Rating
Fuse or Relay
Number
Powertrain control module.
Relay
R1
Daytime running lamps.
Relay
R2
Starter motor.
Relay
R3
Blower motor.
Relay
R4
Horn.
Relay
R5
Fuel pump.
Relay
R6
Starter ground.
Relay
R7
Trailer tow parking lamps.
Relay
R8
Backup lamps.
Relay
R9
Hydromax brake on/off relay.
Relay
R10
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing FusesE172543

Protected Components
Fuse Rating
Fuse or Relay
Number
Not used.
Relay
R11
Not used.
Relay
R12
Hydromax brake on/off relay.
10A
M1-1
Brake shift Interlock (Column shift).
10A
M1-2
Power brake assist module (Hydromax).
5A
M1-3
Powertrain control module.
10A
M1-4
UPS Power Distribution Box 2 Protected Components
Fuse Rating
Fuse or Relay
Number
Backup lamp feed.
25A 1
M1
Trailer tow backup lamp feed.
Daytime running lamps.
20A 1
M2
4–channel anti-lock brake system module
(Hydromax).
30A 1
M3
Powertrain control module run/start.
20A 1
M4
Fuel pump relay coil.
Fuel pump diode.
Brake lamps.
10A 1
M5
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing FusesE172544

Protected Components
Fuse Rating
Fuse or Relay
Number
Headlamp daytime running lamp relay
feed.
High beam headlamps flash to pass.
(Instrument panel fuses #25, 31).
Ignition switch feeds (instrument panel
fuses #F26).
40A 2
J6
Instrument panel fuses #F24, F22, F20,
F26, F21, F8, F6, F4, F2.
40A 2
J7
Power distribution box fuses M4, M1-4.
Instrument panel fuses F11, F13, F15, F17.
50A 2
J8
Starter relay feed.
30A 2
J9
Starter motor solenoid.
Power distribution box fuse M1-1.
60A 2
J10
Power brake assist motor (HydroMax).
Trailer tow electronic brake.
30A 2
J11
Lighting primary.
60A 2
J12
Power distribution box fuse M1-2.
Instrument panel fuses #F19, F5, F3.
Brake on/off.
20A 2
J13
Hazard.
Horn.
20A 2
J14
HydroMax anti-lock brake system module.
60A 2
J15
Trailer tow parking lamps.
20A 2
J16
1 Mini fuse.
2 J case fuse.
Diode and Relay Module
Locate the module box with the power
distribution box in from of the radiator.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

Protected Components
Relay 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 and
relay module. Protected Components
Fuse Rating
Fuse Number
Break on/off relay feed (HydroMax
module).
10A
1
Brake transmission shift interlock.
10A
2
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing FusesE224614

Protected Components
Fuse Rating
Fuse or Relay
Number
Blower motor relay coil.
15A
7
Brake lamps feed.
10A
8
Trailer brake control module
Not used.
—
9
Instrument cluster memory.
10A
10
Wiper/washer module.
30A
11
Wiper feed.
Not used.
—
12
Anti-lock brake system module –
HydroMax.
10A
13
Anti-lock brake system module – Hydro-
boost.
10A
14
Instrument cluster run/start.
Left-hand direction indicator feed.
15A
15
Body builder battery (+12V) feed.
20A
16
Body builder radio feed.
5A
17
Not used.
—
18
Daytime running lamps relays.
5A
19
Not used.
—
20
Right-hand direction indicator feed.
15A
21
Trailer tow direction indicators.
20A
22
Cluster run/accessory.
10A
23
Not used.
—
24
Body builder right-hand low beam head-
lamp feed.
10A
25
Not used.
—
26
Not used.
—
27
Not used.
—
28
Not used.
—
29
82
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

Protected Components
Fuse Rating
Fuse or Relay
Number
Not used.
—
30
Body builder left-hand low beam head-
lamp feed.
10A
31
Not used.
—
32
Body builder reverse lamp power.
10A
33
Body builder reverse gear.
10A
34
Trailer tow reverse lamps.
Body builder high beam feed.
20A
35
High beam indicator.
Transmission control switch.
10A
36
Not used.
—
37
Body builder off/run.
10A
38
Not used.
—
39
Not used.
—
40
Instrument cluster lighting/switch illumin-
ation.
10A
41
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 6
Parking brake.
Daytime running lamps on/off.
—
Relay 7
Not used.
—
Diode 1
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

Protected Components
Fuse Rating
Fuse or Relay
Number
Right low beam headlamp.
10A
F7
Daytime running lamps relays.
5A
F8
Left low beam headlamp.
10A
F9
Transmission control switch.
10A
F10
Cluster battery (+12V) #1.
10A
F11
Not used.
—
F12
Cluster battery (+12V) #2.
10A
F13
Switch illumination.
10A
F14
Instrument cluster lighting.
Body builder battery (+12V) feed.
20A
F15
Not used.
—
F16
Trailer tow direction indicators.
20A
F17
Trailer tow stop lamps.
Trailer tow hazard lamps.
Body builder off/run.
10A
F18
Trailer brake control module Brake on/off
signal.
10A
F19
Body builder brake lamps.
Left/right brake lamps.
Body builder run/accessory feed.
10A
F20
Anti-lock brake system module.
10A
F21
Instrument cluster.
Wiper/washer module.
30A
F22
Wiper feed.
Reverse lamps.
10A
F23
Body builder radio feed.
5A
F24
Trailer tow reverse lamps.
10A
F25
Cluster run/accessory.
10A
F26
High beam indicator.
20A
F27
Daytime running lamps.
Micro relay
R1
86
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

Protected Components
Fuse Rating
Fuse or Relay
Number
Parking brake.
Daytime running lamps on/off.
Micro relay
R2
Right-hand direction indicator.
Micro relay
R3
Trailer tow right-hand direction indicator.
Micro relay
R4
Left-hand direction indicator.
Micro relay
R5
Trailer tow left-hand direction indicator.
Micro relay
R6
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 fuse with one that
has the specified amperage rating.
Using a fuse with a higher amperage
rating can cause severe wire damage and
could start a fire. If electrical components in the vehicle are
not working, a fuse may have blown. Blown
fuses are identified by a broken wire within
the fuse. Check the appropriate fuses
before replacing any electrical
components.
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Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing FusesE217331