2017 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS brake

Protected components
Fuse amp rating
Fuse or relay number
Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.
Powertrain control module relay coil.
5A*
4
Powertrain control module keep alive
memory.
Powertrain control module power.
20A*
5
Instrument panel dimmer module.
20A*
6
Park lamp feeds.
Trailer tow running lamp relay coil.
Ignition coils.
20A*
7
Radio capacitors.
Hydromax – Anti-lock brake system
module.
30A*
8
Powertrain control module.
10A*
9
Daytime running lamps.
20A*
10
Fuel pump relay coil.
20A*
11
Powertrain control module.
Fuel pump diode.
Instrument panel - backup lamp feed.
25A*
12
Trailer tow backup lamps feed.
Trailer tow electric brake controller feed.
30A**
13
Instrument panel battery feed (fuse #15,
21).
60A**
14
Lighting primary fuse.
Power distribution box fuse #19.
Trailer tow park lamps.
20A**
15
Anti-lock brake system module –
Hydromax.
60A**
16
Anti-lock brake system module – Hydro-
boost.
40A**
Horn feed.
20A**
17
Backup lamp relay coil.
20A**
18
A/C clutch coil.
66
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

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
67
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

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
69
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

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.
70
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Trailer tow electronic brake.
30A**
J12
Ignition switch feed (instrument panel
fuses #1, 5, 7, 11, 13, 14, 17, 19, 23, 36).
40A**
J13
(Power distribution box fuse #F19, F22,
F21).
Not used.
—
J14
Instrument panel battery feed (fuse #15,
21).
60A**
J15
Lighting primary fuse.
Horn.
20A**
J16
Ignition switch feed (instrument panel
fuses #5, 11, 17, 23, 38).
40A**
J17
Brake on/off switch.
20**
J18
Multifunction switch.
Not used.
—
J19
Not used.
—
J20
Not used.
—
J21
Reverse lamp relay coil.
20A**
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
Air conditioning clutch relay.
—
R8
Not used.
—
R9
Starter relay.
—
R10
71
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Trailer tow parking lamps.
Relay
R8
Backup lamps.
Relay
R9
Hydromax brake on/off relay.
Relay
R10
Not used.
Relay
R11
Not used.
Relay
R12
Hydromax brake on/off relay.
10A
M1-1
BTSI (Column shift).
20A
M1-2
Power brake assist module (Hydromax).
5A
M1-3
Powertrain control module.
10A
M1-4
UPS Power Distribution Box 2 Protected components
Fuse amp rating
Fuse or relay number
Backup lamp feed.
25A*
M1
Trailer tow backup lamp feed.
Daytime running lamps.
20A*
M2
4–channel anti-lock brake system module
(Hydromax).
30A*
M3
Powertrain control module run/start.
20A*
M4
Fuel pump relay coil.
Fuel pump diode.
73
Motorhome (TY3) Canada/United States of America, enUSA, First Printing FusesE172544

Protected components
Fuse amp rating
Fuse or relay number
Brake lamps.
10A*
M5
Radio capacitors.
20A*
M6
Ignition coils.
Backup lamp relay coil.
5A*
M7
Air conditioning clutch coil.
Air conditioning demand switch.
Catalyst monitor sensor.
20A*
M8
Engine heated exhaust gas oxygen sensor
#11 and #21.
Vapor management valve.
Powertrain control module power.
20A*
M9
Not used.
—
M10
Powertrain control module relay keep alive
power.
5A*
M11
Powertrain control module relay coil.
Parking lamps feed.
20A*
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**
J1
Fuel injectors.
20A**
J2
Fuel pump motor.
Mass airflow sensor.
Powertrain control module.
Cigar lighter power point.
20A**
J3
Diagnostic connector.
Blower motor.
40A**
J4
Headlamps.
30A**
J5
Daytime running lamps on/off relay coil.
Headlamp daytime running lamp relay
feed.
74
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
High beam headlamps flash to pass.
(Instrument panel fuses #25, 31).
Ignition switch feeds (instrument panel
fuses #F26).
40A**
J6
Instrument panel fuses #F24, F22, F20,
F26, F21, F8, F6, F4, F2.
40A**
J7
Power distribution box fuses M4, M1-4.
Instrument panel fuses F11, F13, F15, F17.
50A**
J8
Starter relay feed.
30A**
J9
Starter motor solenoid.
Power distribution box fuse M1-1.
60A**
J10
Power brake assist motor (Hydromax).
Trailer tow electronic brake.
30A**
J11
Lighting primary.
60A**
J12
Power distribution box fuse M1-2.
Instrument panel fuses #F19, F5, F3.
Not used.
—
J13
Horn.
20A**
J14
4–channel anti-lock brake system module.
60A**
J15
Trailer tow parking lamps.
20A**
J16
* Mini fuse.
** J-case fuse.
Diode and Relay Module
Locate the module box with the power
distribution box in from of the radiator.
75
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses