Scheme of fuse and relay boxes – Ford F-550

Applies to vehicles manufactured in the years: 

2002, 2003, 2004, 2005, 2006, 2007.

 

Diagram of the fuse box in the passenger compartment

The fuse panel is located below and to the left of the handlebar next to the brake pedal. Remove the panel cover to access the fuses.

To remove the fuse panel cover, pull the panel downward at the finger slots on the top of the panel. When the top clamps of the panel are unhooked, the panel can fall easily.

 

To reinstall the cover, align and hook the two hooks on the bottom of the cover on the dashboard, then lift the panel and push the upper hooks firmly into place.

Number	Amperes [A]	Description
1	15	Adjustable pedals
2	10	2005-2007: Cluster
3	10	2005-2007: Upfitter No.3
4	20	Power point – instrument panel
5	10	2005-2007: Upfitter No. 4
6	20	2002-2004: Trailer tow turn / stop relay
7	thirty	High beam headlamps, Flash to pass
8	15	2003-2004, diesel: backup lamps
	20	2005-2007: Backup lamps
9	20	2003-2004: Heated mirrors
10	10	2002-2004: A / C clutch
11	20	Radio (main)
12	20	Cigarette lighter, OBD II
13	5	Power mirrors / switches
14	15	2002-2004: Daytime running lights (DRL)
15	–	Not used
16	–	Not used
17	15	Outdoor lamps
18	20	Turn signal lamps (blinker), brake on-off lamps (BOO)
19	10	Body safety module, 4 × 4 module
20	10	2003-2004, Diesel: Fuel injection control module (FICM) relay
	15	2005-2007: Electric Trailer Brake Controller (EBC)
21	20	2005-2007: Heated seats
22	20	Engine control
23	20	Gasoline: Engine management
		Diesel: climate control
24	2	2003-2004: Brake pressure switch, speed control
	15	2005-2007: Tow bar, blower relay, electronic automatic temperature control
25	10	2002-2004: 4-wheel anti-lock braking system module (4WABS), Variable Fan Control (VFC) (2003-2004, Diesel)
26	10	Airbags
27	15	Ignition switch Start feed
28	10	2002-2004: EATC module, Front blower relay coil
		2005-2007: ECB trailer towing logic
29	10	Customer Access
30	15	High beam headlamps
31	15	2002-2004: Clutch lock switch (manual transmissions only), transmission range sensor (automatic transmissions only) then starter relay coil (all transmissions), 4×4
		2005: 4×4
		2006-2007: Starter relay
32	5	Radio (start)
33	15	2002-2004: Front wiper
		2005-2007: Cluster, 4×4, Wipers
34	10	Brake switch (low current)
35	10	Instrument cluster
36	10	2002-2004: PCM memory
37	15	Horn
38	20	Trailer tow lamps, reversing lamps (2002)
39	15	2003-2004: Reversing lamps for trailer towing
		2005-2007: Heated mirrors
40	20	Fuel pump
41	10	Instrument cluster
42	15	Delayed accessory
43	10	Fog lights
44	–	Not used
45	10	Run / Start feed ignition switch
46	10	Left dipped beam
47	10	Right dipped beam
48	–	Not used
101	thirty	Electric brake for towing a trailer
102	thirty	Door Locks / Body Security Module
103	50	2002-2004: Ignition switch
	thirty	2005-2007: Ignition switch
104	40	2003-2004: Heated backlight
105	thirty	2002, diesel: injector driver module
		2003-2004, diesel: fuel heater
106	thirty	Main front wiper
107	40	2002-2004: Front blower motor
	20	2005-2007: Charging the battery for towing a trailer
108	thirty	2005-2007: Upfitter No.1
109	thirty	2002-2004: Heated seats
		2005-2007: Upfitter No.2
110	50	2002-2004: Ignition switch
	thirty	2005-2007: Ignition switch
111	thirty	2002-2004: 4WD / flight change
112	thirty	Left-hand electric seats
113	thirty	Starter
114	thirty	Electric seats on the right
115	20	2002-2004: Charging the trailer tow battery
		2005-2007: Upfitter control
116	thirty	Ignition switch
601	thirty	Circuit breaker: delayed accessories, power windows, sunroof
602	60	2002-2004: 4WABS module
Relay
210	Not used
211	2003-2004, diesel: backup lamps
	2005-2007: Backup lamps
212	Not used
301	2002-2004: Front blower motor
	2005-2007: Charging the battery for towing a trailer
302	Powertrain control module (PCM)
303	2002, diesel: injector driver module
	2003-2004, diesel: fuel heater
304	2003-2004: Heated backlight
305	2002-2004: Charging the trailer tow battery
	2005-2007: Upfitter control
306	Delayed accessory
307	Starter

Diagram of the fuse box in the engine compartment

The power distribution box is located in the engine compartment.

Number	Amperes [A]	Description
1	thirty	Wipers
2	40	Blower
3	thirty	Electronic Flight Shifting (ESOF)
4	–	Not used
5	50	Diesel: Injector Driver Module (IDM)
6	–	Not used
7	thirty	2005, Diesel: Horizontal Fuel Conditioning Module (HFCM)
8	–	Siding
9	20	Trailer towing turn signals
10	10	Powertrain control module (PCM) maintains power, canister purge solenoid (gasoline)
11	10	Anti-lock brake system (ABS)
12	2	Brake pressure switch
13	15	Daytime running lights (DRL)
14	–	Not used
15	15	Diesel: Injector Driver Module Logic
16	–	Not used
17	10	Air conditioning clutch
18	10	Diesel: Injector driver module relay
19	–	Not used
20	10	Reversing lamps for towing a trailer
21	–	Not used
22	60	ABS (coils)
23	60	ABS (pump)
Relay
201	Right turn signal / brake light for towing trailer
202	Left turn signal / brake light for trailer towing
203	Air conditioning clutch
204	Not used
205	Daytime running lamps # 1
206	Daytime running lamps # 2
301	Daytime running lamps # 3
302	Not used
303	Blower
304	Diesel: injector driver module

Auxiliary Relay Box (2006-2007)

The auxiliary relay box is located on the left side of the front engine compartment. This box contains relays for the Electronic Shift On the Fly (ESOF) system.