Ford F-53 Motorhome Chassis (2017 year). Manual — part 17

Protected components

Fuse amp rating

Fuse or relay number

A/C demand switch.

Brake on/off switch.

20A**

19

Multifunction switch.

Powertrain control module relay (Power
distribution box fuses # 3, 5, 7, 18).

30A**

20

Fuel injectors.

20A**

21

Fuel pump motor.
Mass air flow sensor.
Powertrain control module.

Cigar lighter feed.

20A**

22

Diagnostic tool connector.

Blower motor feed.

40A**

23

Instrument panel battery feed (fuses #4,
10, 16, 22).

50A**

24

Ignition switch feed (Instrument panel
fuses #1, 5, 7, 11, 13, 14, 17, 19, 23, 36; Power
distribution box fuses #9, 11).

40A**

25

Fuse holder #2.

Ignition switch feed (Instrument panel
fuses #5, 11, 17, 23, 38).

40A**

26

Headlamps.

30A**

27

Daytime running lamps on/off relay coil.
Headlamp daytime running lamp relay
feed.
High beam headlamps flash to pass.
(Instrument panel fuses #25, 31).

Starter relay feed.

30A**

28

Starter motor solenoid.

Power brake assist motor – Hydromax.

60A**

29

Fuse holder #1.

Anti-lock brake system module – Hydro-
boost.

40A**

Air conditioning clutch relay.

—

R1

Fuel pump relay.

—

R2

Horn relay.

—

R3

Protected components

Fuse amp rating

Fuse or relay number

Starter relay.

—

R4

Blower motor relay.

—

R5

Powertrain control module relay.

—

R6

Fuel pump diode.

—

Diode 1

Air conditioning clutch diode.

—

Diode 2

*Mini fuses.

**Maxi fuses.

F59 Power Distribution Box

E197657

Protected components

Fuse amp rating

Fuse or relay number

Air conditioning compressor clutch.

10A*

F1

Anti-lock brake system - Hydromax.

30A*

F2

Powertrain control module keep alive
memory.

5A*

F3

Powertrain control module relay coil.

Not used.

—

F4

Trailer tow running lamp relay coil.

20A*

F5

Park lamp feeds.
Instrument panel dimmer module.

Not used.

—

F6

Trailer tow backup lamp feed.

25A*

F7

Backup lamp feed.

Not used.

—

F8

Daytime running lamps.

20A*

F9

Not used.

—

F10

Not used.

—

F11

Not used.

—

F12

Not used.

—

F13

Not used.

—

F14

Power brake assist module (Hydromax).

5A*

F15

Powertrain control module power.

20A*

F16

Catalyst monitor sensor.

20A*

F17

Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.

Radio capacitors.

20A*

F18

Ignition coils.

Powertrain control module.

10A*

F19

Hydromax module brake on/off relay feed.

10A*

F20

Powertrain control module.

20A*

F21

Protected components

Fuse amp rating

Fuse or relay number

Fuel pump diode.
Fuel pump relay coil.

Brake transmission shift interlock.

10A*

F22

Not used.

—

F23

Not used.

—

F24

Blower motor relay feed.

40A**

J1

Headlamps.

30A**

J2

High beam headlamps flash to pass.
Daytime running lamps on/off relay coil.
Headlamp daytime running lamp relay
feed.
Instrument panel fuses #25, 31.

Vehicle power.

30A**

J3

Powertrain control module relay feed.
Power distribution box fuse F16, F17, F18,
J22.

Cigar lighter feed.

20A**

J4

Diagnostic tool connector.

Not used.

—

J5

Starter relay feed.

30A**

J6

Starter motor solenoid.

Anti-lock brake system module (Hydro-
boost).

40A**

J7

Power brake assist motor (Hydromax).

60A**

Power distribution box fuse #F20.

Trailer tow park lamps.

20A**

J8

Instrument panel fuse #4, 10, 16, 22.

50A**

J9

4-channel anti-lock brake system module.

60A**

J10

3-channel anti-lock brake system module.

40A**

Fuel pump relay feed.

20A**

J11

Fuel injectors.
Mass air flow sensor.
Fuel pump motor.
Powertrain control module.