2012 Ford F250 Fuse Box Diagram

In this article, we will explore the 2012 Ford F250 Fuse Box Diagram, the purpose of fuses, their types, and where they are located within the fuse box. Additionally, we will provide you with a detailed diagram highlighting the fuses and their corresponding circuits, making it easier for you to identify and replace the relevant fuses if needed.

Things to Check Before Changing Fuses

If certain electrical components in your vehicle are not working, it’s possible that a fuse has blown. Blown fuses can be identified by a broken wire inside the fuse. Before replacing any electrical components, check the corresponding fuses to see if they need to be replaced.

Standard fuse amperage rating and color

COLOR
Fuse rating	Mini fuses	Standard fuses	Maxi fuses	Cartridge maxi fuses	Fuse link cartridge
2A	Grey	Grey	—	—	—
3A	Violet	Violet	—	—	—
4A	Pink	Pink	—	—	—
5A	Tan	Tan	—	—	—
7.5A	Brown	Brown	—	—	—
10A	Red	Red	—	—	—
15A	Blue	Blue	—	—	—
20A	Yellow	Yellow	Yellow	Blue	Blue
25A	Natural	Natural	—	Natural	Natural
30A	Green	Green	Green	Pink	Pink
40A	—	—	Orange	Green	Green
50A	—	—	Red	Red	Red
60A	—	—	Blue	Yellow	Yellow
70A	—	—	Tan	—	Brown
80A	—	—	Natural	Black	Black

Power Distribution Box

Fuse/RelayLocation	Fuse AmpRating	Protected Circuits
1	Relay	Blower motor
2	—	Not used
3	Relay	Urea heaters (diesel engine)
4	—	Not used
5	Relay	Rear window defroster
6	—	Not used
7	50A*	Rear window defroster
8	30A*	Passenger seat
9	30A*	Driver seat
10	—	Not used
11	—	Not used
12	—	Not used
13	—	Not used
14	—	Not used
15	Diode	Fuel pump (diesel engine)
16	—	Not used
17	15A**	Heated mirror
18	—	Not used
19	—	Not used
20	—	Not used
21	—	Not used
22	30A*	Trailer tow electric brake
23	40A*	Blower motor
24	—	Not used
25	30A*	Wipers
26	30A*	Trailer tow park lamps
27	25A*	Urea heaters (diesel engine)
28	—	Buss bar
29	Relay	Trailer tow park lamps
30	Relay	A/C clutch
31	Relay	Wipers
32	—	Not used
33	15A**	Vehicle power (VPWR) 1
34	15A**	VPWR 2 (diesel engine)
	20A**	VPWR 2 (gas engine)
35	10A**	VPWR 3
36	15A**	VPWR 4 (diesel engine)
	20A**	VPWR 4 (gas engine)
37	10A**	VPWR 5 (diesel engine)
38	Relay	Powertrain control module(PCM) (diesel engine),Electronic control module (ECM)(gas engine)
39	10A**	4×4 hub lock
40	15A**	4×4 electronic lock
41	—	Not used
42	—	Not used
43	—	Not used
44	—	Not used
45	10A**	Run/start relay coil
46	10A**	Transmission control module (TCM) keep-alive power (diesel engine)
47	10A**	A/C clutch feed
48	Relay	Run/start
49	10A**	Rearview camera system
50	10A**	Blower motor relay coil
51	—	Not used
52	10A**	PCM/ECM/TCM run/start
53	10A**	4×4 module
54	10A**	Anti-lock brake system (ABS) run/start
55	10A**	Rear window defroster coil,Battery charge coil
56	20A**	Passenger compartment fuse panel run/start feed
57	Relay	Fuel pump
58	—	Not used
59	—	Not used
60	—	Not used
61	—	Not used
62	—	Not used
63	—	Not used
64	—	Not used
65	—	Not used
66	20A**	Fuel pump
67	—	Not used
68	10A**	Fuel pump relay coil
69	—	Not used
70	10A**	Trailer tow backup lamp
71	10A**	Cannister vent (gas engine)
72	10A**	PCM/ECM relay coil feed keep-alive power
73	—	Not used
74	Relay	Trailer tow left-hand stop/turn
75	Relay	Trailer tow right-hand stop/turn
76	Relay	Backup lamp
77	—	Not used
78	—	Not used
79	—	Not used
80	—	Not used
81	—	Not used
82	20A*	Auxiliary power point #2
83	20A*	Auxiliary power point #1
84	30A*	4×4 shift motor
85	30A*	Heated/cooled seats
86	25A*	ABS coil feed
87	20A*	Auxiliary power point #5
88	—	Not used
89	40A*	Starter motor
90	25A*	Trailer tow battery charge
91	—	Not used
92	20A*	Auxiliary power point #4
93	20A*	Auxiliary power point #3
94	25A*	Upfitter #1
95	25A*	Upfitter #2
96	50A*	ABS pump
97	40A*	Invertor
98	—	Not used
99	—	Not used
100	25A*	Trailer tow turn signals
101	Relay	Starter
102	Relay	Trailer tow battery charge
103	—	Not used
104	—	Not used
105	—	Not used
106	—	Not used
107	—	Not used
* Cartridge fuses ** Mini fuses

Passenger Compartment Fuse Panel

Fuse/RelayLocation	Fuse AmpRating	Protected Circuits
1	30A	Not used (spare)
2	15A	Upfitter relay #4
3	30A	Not used (spare)
4	10A	Interior lights, Hood lamp
5	20A	Moon roof
6	5A	Driver seat module
7	7.5A	Driver seat switch, Driver lumbar motor
8	10A	Power mirror switch
9	10A	Upfitter relay #3
10	10A	Run/accessory relay, Customer access feed
11	10A	Instrument cluster
12	15A	Interior lighting, Lighted running board lamps
13	15A	Right turn signals and brake lamps, Right trailer tow (TT) stop turn relay
14	15A	Left turn signals and brake lamps,Left TT stop turn relay
15	15A	High-mounted stop lamps, Backup lamps, TT backup relay
16	10A	Right low beam headlamp
17	10A	Left low beam headlamp
18	10A	Keypad illumination, Passive anti-theft indicator (PATS), Powertrain control module(PCM), Brake shift interlock
19	20A	Subwoofer
20	20A	Power door locks
21	10A	Brake on/off switch
22	20A	Horn
23	15A	Not used (spare)
24	15A	Steering wheel control module, Diagnostic connector, Power fold mirror relay, Remote keyless entry
25	15A	Not used (spare)
26	5A	Steering wheel control module
27	20A	Amplifier
28	15A	Ignition switch
29	20A	SYNC, GPS module, Radio faceplate
30	15A	Parking lamp relay, TT parking lamp relay
31	5A	Trailer brake controller (brake signal), Customer access
32	15A	Moon roof, Telescoping mirror switch, Auto dimming mirrors, Power invertor, Driver and passenger door lock switch illumination
33	10A	Restraint control module
34	10A	Not used (spare)
35	5A	Select shift switch, Reverse park aid module, Trailer brake controlmodule
36	10A	Fuel tank select switch
37	10A	PTC heater
38	10A	Radio faceplate
39	15A	High beam headlamps
40	10A	Parking lamps (in mirrors), Roof marker lamps
41	7.5A	Passenger airbag deactivation indicator
42	5A	Not used (spare)
43	10A	Wiper relay
44	10A	Upfitter switches
45	5A	Not used (spare)
46	10A	Climate control
47	15A	Fog lamps, Fog lamp indicator (in switch)
48	30A CircuitBreaker	Power windows switch, Power rear sliding window switch
49	Relay	Delayed accessory