2018 FORD F-53 fuses

Protected Components
Fuse Rating
Fuse or Relay
Number
Trailer tow backup lamp feed.
25A 1
F7
Backup lamp feed.
Not used.
—
F8
Daytime running lamps.
20A 1
F9
Not used.
—
F10
Not used.
—
F11
Not used.
—
F12
Not used.
—
F13
Not used.
—
F14
Power brake assist module (HydroMax).
5A 1
F15
Powertrain control module power.
20A 1
F16
Catalyst monitor sensor.
20A 1
F17
Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.
Radio capacitors.
20A 1
F18
Ignition coils.
Powertrain control module.
10A 1
F19
HydroMax module brake on/off relay feed.
10A 1
F20
Powertrain control module.
20A 1
F21
Fuel pump diode.
Fuel pump relay coil.
Brake transmission shift interlock.
10A 1
F22
Not used.
—
F23
Not used.
—
F24
Blower motor relay feed.
40A 2
J1
Headlamps.
30A 2
J2
High beam headlamps flash to pass.
73
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

Protected Components
Fuse Rating
Fuse or Relay
Number
Daytime running lamps on/off relay coil.
Headlamp daytime running lamp relay
feed.
Instrument panel fuses #25, 31.
Vehicle power.
30A 2
J3
Powertrain control module relay feed.
Power distribution box fuse F16, F17, F18,
J22.
Cigar lighter feed.
20A 2
J4
Diagnostic tool connector.
Not used.
—
J5
Starter relay feed.
30A 2
J6
Starter motor solenoid.
Anti-lock brake system module (Hydro-
boost).
40A 2
J7
Power brake assist motor (HydroMax).
60A 2
Power distribution box fuse #F20.
Trailer tow park lamps.
20A 2
J8
Instrument panel fuse #4, 10, 16, 22.
50A 2
J9
HydroMax anti-lock brake system module.
60A 2
J10
Hydroboost anti-lock brake system
module.
40A 2
Fuel pump relay feed.
20A 2
J11
Fuel injectors.
Mass air flow sensor.
Fuel pump motor.
Powertrain control module.
Trailer tow electronic brake.
30A 2
J12
Ignition switch feed (instrument panel
fuses #1, 5, 7, 11, 13, 14, 17, 19, 23, 36).
40A 2
J13
(Power distribution box fuse #F19, F22,
F21).
Not used.
—
J14
74
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

Protected Components
Fuse Rating
Fuse or Relay
Number
Instrument panel battery feed (fuse #15,
21).
60A 2
J15
Lighting primary fuse.
Horn.
20A 2
J16
Ignition switch feed (instrument panel
fuses #5, 11, 17, 23, 38).
40A 2
J17
Brake on/off switch.
20A 2
J18
Multifunction switch.
Not used.
—
J19
Not used.
—
J20
Not used.
—
J21
Reverse lamp relay coil.
20A 2
J22
A/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
Daytime running lamp/headlamp relay.
—
R12
Powertrain control module relay.
—
R13
Fuel pump diode.
—
D1
75
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

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
76
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
77
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing FusesE172544

Protected Components
Fuse Rating
Fuse or Relay
Number
Radio capacitors.
20A 1
M6
Ignition coils.
Backup lamp relay coil.
20A 1
M7
Air conditioning clutch coil.
Air conditioning demand switch.
Catalyst monitor sensor.
20A 1
M8
Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.
Powertrain control module power.
20A 1
M9
Brake shift Interlock
5A 1
M10
Powertrain control module relay keep alive
power.
5A 1
M11
Powertrain control module relay coil.
Parking lamps feed.
20A 1
M12
Not used.
Diode
D1
Fuel pump.
Diode
D2
Air conditioning clutch.
Diode
D3
Not used.
—
R2-1
Powertrain control module relay feed
(power distribution box fuse M6, M7, M8,
M9).
30A
2
J1
Fuel injectors.
20A 2
J2
Fuel pump motor.
Mass airflow sensor.
Powertrain control module.
Cigar lighter power point.
20A 2
J3
Diagnostic connector.
Blower motor.
40A 2
J4
Headlamps.
30A 2
J5
Daytime running lamps on/off relay coil.
78
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing Fuses

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.
79
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
80
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201712, Second Printing FusesE224614