2017 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS fuses

Protected components
Fuse amp rating
Fuse or relay number
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
Not used.
—
30
78
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
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
Not used.
—
Diode 2
Not used.
—
F1
79
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Not used.
—
F2
Not used.
—
F3
Not used.
—
F4
Not used.
—
F5
Not used.
—
F6
Not used.
—
F7
Not used.
—
F8
Not used.
—
F9
Not used.
—
F10
Not used.
—
F11
Not used.
—
F12
* Mini fuse.
80
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

F59 UPS Passenger Compartment Fuse Panel
Protected components
Fuse amp rating
Fuse or relay number
Not used.
—
F1
Right/left rear direction indicator.
20A*
F2
Right/left direction indicator relay coil.
Instrument cluster right/direction indicator
indicator.
Left turn signal.
15A*
F3
Hazard lamps.
Blower motor relay coil.
15A*
F4
Right front/rear direction indicator.
15A*
F5
Right front/rear hazard lamp.
Anti-lock brake system module
(Hydromax).
10A*
F6
81
Motorhome (TY3) Canada/United States of America, enUSA, First Printing FusesE188334

Protected components
Fuse amp 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 BOO 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
Parking brake.
82
Motorhome (TY3) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
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
* Mini fuse.
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.
83
Motorhome (TY3) Canada/United States of America, enUSA, First Printing FusesE217331

Fuse Types
Fuse Type
Callout
Micro 2
A
Micro 3
B
Maxi
C
Mini
D
M Case
E
J Case
F
J Case Low Profile
G
84
Motorhome (TY3) Canada/United States of America, enUSA, First Printing FusesE207206

UNDER HOOD OVERVIEW - COMMERCIAL CHASSIS
Engine coolant reservoir. See Engine Coolant Check (page 89).
A
Engine oil filler cap. See
Engine Oil Check (page 88).
B
Automatic transmission fluid dipstick. See
Automatic Transmission Fluid
Check (page 93).
C
Engine compartment fuse box. See
Fuses (page 65).
D
Engine oil dipstick. See
Engine Oil Dipstick (page 88).
E
Air filter assembly. See
Changing the Engine Air Filter (page 100).
F
Power steering fluid reservoir. See
Power Steering Fluid Check (page 97).
G
Brake fluid reservoir. See
Brake Fluid Check (page 95).
H
86
Motorhome (TY3) Canada/United States of America, enUSA, First Printing MaintenanceE225840HGFEABCD