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

Fuse ratingMini fusesStandard fusesMaxi fusesCartridge maxi fusesFuse link cartridge

Power Distribution Box

2012 Ford F250 Fuse Box Diagram (Power Distribution Box)
Fuse/RelayLocationFuse AmpRatingProtected Circuits
1RelayBlower motor
2Not used
3RelayUrea heaters (diesel engine)
4Not used
5RelayRear window defroster
6Not used
750A*Rear window defroster
830A*Passenger seat
930A*Driver seat
10Not used
11Not used
12Not used
13Not used
14Not used
15DiodeFuel pump (diesel engine)
16Not used
1715A**Heated mirror
18Not used
19Not used
20Not used
21Not used
2230A*Trailer tow electric brake
2340A*Blower motor
24Not used
2630A*Trailer tow park lamps
2725A*Urea heaters (diesel engine)
28Buss bar
29RelayTrailer tow park lamps
30RelayA/C clutch
32Not used
3315A**Vehicle power (VPWR) 1
3415A**VPWR 2 (diesel engine)
20A**VPWR 2 (gas engine)
3510A**VPWR 3
3615A**VPWR 4 (diesel engine)
20A**VPWR 4 (gas engine)
3710A**VPWR 5 (diesel engine)
38RelayPowertrain control module(PCM) (diesel engine),Electronic control module (ECM)(gas engine)
3910A**4×4 hub lock
4015A**4×4 electronic lock
41Not used
42Not used
43Not used
44Not used
4510A**Run/start relay coil
4610A**Transmission control module (TCM) keep-alive power (diesel engine)
4710A**A/C clutch feed
4910A**Rearview camera system
5010A**Blower motor relay coil
51Not used
5210A**PCM/ECM/TCM run/start
5310A**4×4 module
5410A**Anti-lock brake system (ABS) run/start
5510A**Rear window defroster coil,Battery charge coil
5620A**Passenger compartment fuse panel run/start feed
57RelayFuel pump
58Not used
59Not used
60Not used
61Not used
62Not used
63Not used
64Not used
65Not used
6620A**Fuel pump
67Not used
6810A**Fuel pump relay coil
69Not used
7010A**Trailer tow backup lamp
7110A**Cannister vent (gas engine)
7210A**PCM/ECM relay coil feed keep-alive power
73Not used
74RelayTrailer tow left-hand stop/turn
75RelayTrailer tow right-hand stop/turn
76RelayBackup lamp
77Not used
78Not used
79Not used
80Not used
81Not used
8220A*Auxiliary power point #2
8320A*Auxiliary power point #1
8430A*4×4 shift motor
8530A*Heated/cooled seats
8625A*ABS coil feed
8720A*Auxiliary power point #5
88Not used
8940A*Starter motor
9025A*Trailer tow battery charge
91Not used
9220A*Auxiliary power point #4
9320A*Auxiliary power point #3
9425A*Upfitter #1
9525A*Upfitter #2
9650A*ABS pump
98Not used
99Not used
10025A*Trailer tow turn signals
102RelayTrailer tow battery charge
103Not used
104Not used
105Not used
106Not used
107Not used
* Cartridge fuses ** Mini fuses 

Passenger Compartment Fuse Panel

2012 Ford F250 Fuse Box Diagram (Passenger Compartment Fuse Panel)
Fuse/RelayLocationFuse AmpRatingProtected Circuits
130ANot used (spare)
215AUpfitter relay #4
330ANot used (spare)
410AInterior lights, Hood lamp
520AMoon roof
65ADriver seat module
77.5ADriver seat switch, Driver lumbar motor
810APower mirror switch
910AUpfitter relay #3
1010ARun/accessory relay, Customer access feed
1110AInstrument cluster
1215AInterior lighting, Lighted running board lamps
1315ARight turn signals and brake lamps, Right trailer tow (TT) stop turn relay
1415ALeft turn signals and brake lamps,Left TT stop turn relay
1515AHigh-mounted stop lamps, Backup lamps, TT backup relay
1610ARight low beam headlamp
1710ALeft low beam headlamp
1810AKeypad illumination, Passive anti-theft indicator (PATS), Powertrain control module(PCM), Brake shift interlock
2020APower door locks
2110ABrake on/off switch
2315ANot used (spare)
2415ASteering wheel control module, Diagnostic connector, Power fold mirror relay, Remote keyless entry
2515ANot used (spare)
265ASteering wheel control module
2815AIgnition switch
2920ASYNC, GPS module, Radio faceplate
3015AParking lamp relay, TT parking lamp relay
315ATrailer brake controller (brake signal), Customer access
3215AMoon roof, Telescoping mirror switch, Auto dimming mirrors, Power invertor, Driver and passenger door lock switch illumination
3310ARestraint control module
3410ANot used (spare)
355ASelect shift switch, Reverse park aid module, Trailer brake controlmodule
3610AFuel tank select switch
3710APTC heater
3810ARadio faceplate
3915AHigh beam headlamps
4010AParking lamps (in mirrors), Roof marker lamps
417.5APassenger airbag deactivation indicator
425ANot used (spare)
4310AWiper relay
4410AUpfitter switches
455ANot used (spare)
4610AClimate control
4715AFog lamps, Fog lamp indicator (in switch)
4830A CircuitBreakerPower windows switch, Power rear sliding window switch
49RelayDelayed accessory
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Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.

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