Learn about Ford F-150 2021-2023 fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.

The Ford F-150 (2021-2023) is available in various body styles, including Regular Cab, SuperCab, and SuperCrew, catering to diverse needs for space and passenger capacity. Known for its durability and versatility, the F-150 offers trim levels ranging from the base XL to the high-end Limited and Raptor models. Key features include advanced towing capabilities, Pro Power Onboard generator options, and a suite of tech features like Ford’s SYNC 4 infotainment system, making it a leader in the full-size pickup category.

The F-150’s electrical system is integral to its advanced functionality, and the fuse box and relays play a central role. Located under the hood and in the cabin, these components manage power distribution to essential systems like lighting, infotainment, and the engine control unit (ECU). The relays handle high-power loads, ensuring safe and reliable operation of features such as power windows, trailer lights, and heated seats. Proper maintenance of the fuse box and relays is crucial for avoiding electrical issues, especially given the F-150’s extensive technology and feature set.

MUST READ: DYI – How to Check Car Fuses?

(2021-2023) Ford F-150 fuse box and relay with Diagram

WARNING

  • Never replace a fuse with one that has a higher amperage rating.
  • A fuse with a too-high amperage could damage the electrical part and cause a fire.
  • On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
  • If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
  • Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Ford F-150 2021-2023 fuse assignment

Ford F-150 Year of production: 2021, 2022, 2023

Location of Fuse Boxes

Ford F-150 (2021-2023): Passenger compartment fuse panel location

Body Control Module Fuse Box:

Ford F-150 (2021-2023): Engine compartment fuse box location

Under Hood Fuse Box:

Fuse Box Diagrams

2021

Body Control Module Fuse Box
Ford F-150 (2021): Passenger compartment fuse panel diagram

List of fuses in the Body Control Module Fuse Box (2021)

№AProtected Component  
1–Not used.  
210ADelayed accessory feed.  
37.5AWireless charger.  
420ANot used.  
5–Not used.  
610ADriver power window switch.  
710AGear shift module.  
85ACell phone passport module.  
95ACombined sensor module.  
10–Not used.  
11–Not used.  
127.5AEnhanced central gateway. Climate control.  
137.5AInstrument cluster. Steering column control module.  
1415ANot used (spare).  
1515AIntegrated control panel. SYNC.  
16–Not used.  
177.5AHeadlamp control module.  
187.5ANot used.  
195AHeadlamp switch.  
205APassive start. Ignition switch. Key inhibit solenoid.  
215ATrailer brake switch.  
225ANot used.  
2330ADriver door control module.  
2430AMoonroof.  
2520ANot used.  
2630APassenger door control module.  
2730ANot used.  
2830AAmplifier.  
2915A12 inch display. Adjustable pedals.  
305ANot used.  
3110ARF receiver. Driver monitor. Terrain management switch.  
3220AAudio control module.  
33–Not used.  
3430ARun/start relay.  
355A400 watt inverter run/start.  
3615AAuto-dimming interior mirror. Rear heat seat run/start. Adaptive front steering run/start. Heated wheel (vehicles without adaptive front steering).  
3720AAdvanced driver-assistance systems.  
3830A circuit breakerRear power windows.  
Under Hood Fuse Box
Ford F-150 (2021): Engine compartment fuse box diagram

List of fuses in the Under-Hood Fuse Box (2021)

№AProtected Component  
140ABody control module – battery power in feed 1.  
340ABody control module – battery power in feed 2.  
430AFuel pump.  
55APowertrain control module coil.  
625APowertrain control module power.  
720APowertrain control module power.  
820APowertrain control module power (hybrid).  
10APowertrain control module power (gas, diesel, Raptor, Tremor).  
920APowertrain control module power.  
1020APowertrain control module power (diesel).  
1130AStarter motor.  
1340ABlower motor.  
1525AHorn.  
1920ASnow plow switch (gas). Rear heated seats (gas, diesel, hybrid).  
2110AHeadlamp run/start feed.  
2210AElectronic power assist steering.  
2310AElectric brake boost.  
2410APowertrain control module (gas, hybrid). Transmission control module (diesel). Glow plug control module (diesel).  
2510ACenter high-mounted stop lamp camera. Trailer camera. 2 kW inverter. 24 V alternator – run/start feed. Analog rear video camera.  
2850AElectric brake boost.  
2950AElectric brake boost.  
3040ADriver power seat.  
3130APassenger power seat.  
3220AAuxiliary power point.  
3320AAuxiliary power point. USB smart charger.  
3420AAuxiliary power point.  
3730ATailgate module.  
3840AClimate controlled seat module. Power running boards.  
4125APower sliding back window.  
4230ATrailer brake control module.  
4750ACooling fan (gas, hybrid, Raptor, Tremor).  
4820ARear heated seats (Raptor, Tremor)  
4950ACooling fan (gas, hybrid, Raptor, Tremor).  
5040AHeated backlight (gas, hybrid).  
5530ATrailer tow park lamps.  
5620ATrailer tow stop and turn lamps (4-pin connector).  
5810ATrailer tow backup lamps.  
6015AUpfitter 1 relay (Raptor, Tremor).  
6115AUpfitter 2 relay (Raptor, Tremor).  
6210AUpfitter 3 relay (Raptor, Tremor).  
6310AUpfitter 4 relay (Raptor, Tremor).  
6425AFour-wheel drive.  
6515ATransmission control module (diesel).  
6720ATransmission run/start.  
6930ALeft-hand windshield wiper.  
8225AFour-wheel drive.  
8350ASupplemental heater (diesel).  
8450ASupplemental heater (diesel).  
8550ASupplemental heater (diesel).  
8625ASelective catalytic reduction system (diesel).  
9120ATrailer tow light module.  
9515APowertrain control module power (hybrid).  
9810APowertrain control module power (hybrid). Coolant pumps (hybrid).  
10015ALeft-hand headlamps.  
10115ARight-hand headlamps.  
10550AActive front steering.  
10730ATrailer tow battery charge.  
10815ASpot lamps (police).  
12130AFuel filter heater (diesel).  
1245ARain sensor module.  
12510AUSB smart charger.  
13425AMulti-contour seats relay (gas, diesel, hybrid).  
13810ATailgate release.  
1395AUSB smart charger.  
14615ATraction battery control module (hybrid).  
14740AChange air cooler fan relay (Raptor, Tremor).  
1595ADC/DC power (hybrid).  
16010ASmart data link control.  
16815ATraction battery control module (hybrid).  
16910AMotor electric cool pump (hybrid).  
17010APedestrian alert control module (hybrid). Traction battery control module (hybrid). Electric motor cool pump (hybrid).  
20260ABody control module B+.  
21030ABody control module start stop.  
3055AUpfitter 5 relay (Raptor, Tremor).  
3065AUpfitter 6 relay (Raptor, Tremor).  
R04Electronic fan relay 1.  
R06Electronic fan relay 3.  
R35Supplemental heater.  
R36Supplemental heater.  

2022

Body Control Module Fuse Box
Ford F-150 (2022): Passenger compartment fuse panel diagram

List of fuses in the Body Control Module Fuse Box (2022)

№AProtected Component  
1 –Not used.  
2 10ADelayed accessory feed.  
3 7.5AWireless charger.  
4 20ANot used.  
5 –Not used.  
6 10ADriver power window switch.  
7 10AGear shift module.  
8 5ACell phone passport module.  
9 5ACombined sensor module.  
10 –Not used.  
11 –Not used.  
12 7.5AEnhanced central gateway. Climate control.  
13 7.5AInstrument cluster. Steering column control module.  
14 15ANot used (spare).  
15 15AIntegrated control panel. SYNC.  
16 –Not used.  
17 7.5AHeadlamp control module.  
18 7.5ANot used.  
19 5AHeadlamp switch.  
20 5APassive start. Ignition switch. Key inhibit solenoid.  
21 5ATrailer brake switch.  
22 5ANot used.  
23 30ADriver door control module.  
24 30AMoonroof.  
25 20ANot used.  
26 30APassenger door control module.  
27 30ANot used.  
28 30AAmplifier.  
29 15A12 inch display. Adjustable pedals.  
30 5ANot used.  
31 10ARF receiver. Driver monitor. Terrain management switch.  
32 20AAudio control module.  
33 –Not used.  
34 30ARun/start relay.  
35 5A400 watt inverter run/start.  
36 15AAuto-dimming interior mirror. Rear heat seat run/start. Adaptive front steering run/start. Heated wheel (vehicles without adaptive front steering).  
37 20AAdvanced driver-assistance systems.  
38 30A circuit breakerRear power windows.  
Under Hood Fuse Box
Ford F-150 (2022): Engine compartment fuse box diagram

List of fuses in the Under-Hood Fuse Box (2022)

№AProtected Component  
1 40ABody control module – battery power in feed 1.  
3 40ABody control module – battery power in feed 2.  
4 30AFuel pump.  
5 5APowertrain control module coil.  
6 25APowertrain control module power (gas, hybrid).  
7 20APowertrain control module power.  
8 20APowertrain control module power (hybrid).  
10APowertrain control module power (gas, Raptor, Tremor).  
9 20APowertrain control module power (gas, hybrid).  
10 –Not used.  
11 30AStarter motor.  
13 40ABlower motor.  
15 25AHorn.  
19 20ASnowplow switch (gas). Rear heated seats (gas, hybrid).  
21 10AHeadlamp run/start feed.  
22 10AElectronic power assist steering.  
23 10AElectric brake boost.  
24 10APowertrain control module (gas, hybrid).  
25 10ACenter high-mounted stop lamp camera. Trailer camera. 2 kW inverter. 24 V alternator – run/start feed. Analog rear video camera.  
28 50AElectric brake boost.  
29 50AElectric brake boost.  
30 40ADriver power seat.  
31 30APassenger power seat.  
32 20AAuxiliary power point.  
33 20AAuxiliary power point. USB smart charger.  
34 20AAuxiliary power point.  
37 30ATailgate module.  
38 40AClimate controlled seat module. Power running boards.  
41 25APower sliding back window.  
42 30ATrailer brake control module.  
47 50ACooling fan (gas, hybrid, Raptor, Tremor).  
48 20ARear heated seats (Raptor, Tremor)  
49 50ACooling fan (gas, hybrid, Raptor, Tremor).  
50 40AHeated backlight (gas, hybrid).  
55 30ATrailer tow park lamps.  
56 20ATrailer tow stop and turn lamps (4-pin connector).  
58 10ATrailer tow backup lamps.  
60 15AUpfitter 1 relay (Raptor, Tremor).  
61 15AUpfitter 2 relay (Raptor, Tremor).  
62 10AUpfitter 3 relay (Raptor, Tremor).  
63 10AUpfitter 4 relay (Raptor, Tremor).  
64 25AFour-wheel drive.  
65 –Not used.  
67 20ATransmission run/start.  
69 30ALeft-hand windshield wiper.  
72 30ANot used (spare).  
82 25AFour-wheel drive.  
83 –Not used.  
84 –Not used.  
85 –Not used.  
86 –Not used.  
91 20ATrailer tow light module.  
95 15APowertrain control module power (hybrid).  
98 10APowertrain control module power (hybrid). Coolant pumps (hybrid).  
100 15ALeft-hand headlamps.  
101 15ARight-hand headlamps.  
105 50AActive front steering.  
107 30ATrailer tow battery charge.  
108 15ASpot lamps (police).  
121 –Not used.  
124 5ARain sensor module.  
125 10AUSB smart charger.  
134 25AMulti-contour seats relay (gas, hybrid).  
138 10ATailgate release.  
139 5AUSB smart charger.  
146 15ATraction battery control module (hybrid).  
147 40AChange air cooler fan relay (Raptor, Tremor).  
159 5ADC/DC power (hybrid).  
160 10ASmart data link control.  
168 15ATraction battery control module (hybrid).  
169 10AMotor electric cool pump (hybrid).  
170 10APedestrian alert control module (hybrid). Traction battery control module (hybrid). Electric motor cool pump (hybrid).  
202 60ABody control module B+.  
210 30ABody control module start/stop.  
305 5AUpfitter 5 relay (Raptor, Tremor).  
306 5AUpfitter 6 relay (Raptor, Tremor).  
R04 Electronic fan relay 1.  
R06 Electronic fan relay 3.  
R35 Not used.  
R36 Not used.  

2023

Body Control Module Fuse Box
Ford F-150 (2023): Passenger compartment fuse panel diagram

List of fuses in the Body Control Module Fuse Box (2023)

№AProtected Component  
1 –Not used.  
2 10ADelayed accessory feed.  
3 7.5AWireless charger.  
4 20ANot used.  
5 –Not used.  
6 10ADriver power window switch.  
7 10AGear shift module.  
8 5ACell phone passport module.  
9 5ACombined sensor module.  
10 –Not used.  
11 –Not used.  
12 7.5AEnhanced central gateway. Climate control.  
13 7.5AInstrument cluster. Steering column control module.  
14 15ANot used (spare).  
15 15AIntegrated control panel. SYNC.  
16 –Not used.  
17 7.5AHeadlamp control module.  
18 7.5ANot used.  
19 5AHeadlamp switch.  
20 5APassive start. Ignition switch. Key inhibit solenoid.  
21 5ATrailer brake switch.  
22 5ATrailer battery charge run/start.  
23 30ADriver door control module.  
24 30AMoonroof.  
25 20ANot used.  
26 30APassenger door control module.  
27 30ANot used.  
28 30AAmplifier.  
29 15A12 inch display. Adjustable pedals.  
30 5ANot used.  
31 10ARF receiver. Driver monitor. Terrain management switch.  
32 20AAudio control module.  
33 –Not used.  
34 30ARun/start relay.  
35 5A400 watt inverter run/start.  
36 15AAuto-dimming interior mirror. Rear heat seat run/start. Adaptive front steering run/start. Heated wheel (vehicles without adaptive front steering).  
37 20AAdvanced driver-assistance systems.  
38 30A circuit breakerRear power windows.  
Under Hood Fuse Box
Ford F-150 (2023): Engine compartment fuse box diagram

List of fuses in the Under-Hood Fuse Box (2023)

№AProtected Component  
1 40ABody control module – battery power in feed 1.  
3 40ABody control module – battery power in feed 2.  
4 30AFuel pump.  
5 5APowertrain control module coil.  
6 25APowertrain control module power (gas, hybrid).  
7 20APowertrain control module power.  
8 20APowertrain control module power (hybrid).  
10APowertrain control module power (gas, Raptor, Tremor).  
9 20APowertrain control module power (gas, hybrid).  
10 –Not used.  
11 30AStarter motor.  
13 40ABlower motor.  
15 25AHorn.  
19 20ASnowplow switch (gas). Rear heated seats (gas, hybrid).  
21 10AHeadlamp run/start feed.  
22 10AElectronic power assist steering.  
23 10AElectric brake booster.  
24 10APowertrain control module (gas, hybrid).  
25 10ACenter high mounted stoplamp camera. Trailer camera. 2 kW inverter. 24 V alternator – run/start feed. Analog rear video camera.  
28 50AElectric brake booster.  
29 50AElectric brake booster.  
30 40ADriver power seat.  
31 30APassenger power seat.  
32 20AAuxiliary power point.  
33 20AAuxiliary power point. USB smart charger.  
34 20AAuxiliary power point.  
37 30ATailgate module.  
38 40AClimate controlled seat module. Power running boards.  
41 25APower sliding back window.  
42 30ATrailer brake control module.  
47 50ACooling fan (gas, hybrid, Raptor, Tremor, Raptor R).  
48 20ARear heated seats (Raptor, Tremor, Raptor R)  
49 50ACooling fan (gas, hybrid, Raptor, Tremor, Raptor R).  
50 40AHeated backlight (gas, hybrid).  
55 30ATrailer tow park lamps.  
56 20ATrailer tow stop and turn lamps (4-pin connector).  
58 10ATrailer tow backup lamps.  
60 15AUpfitter relay 1 (Raptor, Tremor, Raptor R).  
61 15AUpfitter relay 2 (Raptor, Tremor, Raptor R).  
62 10AUpfitter relay 3 (Raptor, Tremor, Raptor R).  
63 10AUpfitter relay 4 (Raptor, Tremor, Raptor R).  
64 25AFour-wheel drive.  
65 20AAuxiliary door lock unit.  
67 20ATransmission run/start.  
69 30ALeft-hand windshield wiper.  
72 30AFuel pump 2 (Raptor R).  
80 20AAuxiliary door lock unit.  
82 25AFour-wheel drive.  
83 –Not used.  
84 –Not used.  
85 –Not used.  
86 –Not used.  
91 20ATrailer tow light module.  
95 15APowertrain control module power (hybrid).  
98 10APowertrain control module power (hybrid). Coolant pumps (hybrid).  
100 15ALeft-hand headlamps.  
101 15ARight-hand headlamps.  
105 50AActive front steering.  
107 30ATrailer tow battery charge.  
108 15ASpot lamps (police).  
121 –Not used.  
124 5ARain sensor module.  
125 10AUSB smart port.  
134 25AMulti-contour seats relay (gas, hybrid).  
138 10ATailgate release.  
139 5AUSB smart port.  
146 15ATraction battery control module (hybrid). Charge air pump (Raptor R).  
147 40ACharge air cooler fan relay (Raptor, Tremor).  
159 5ADC/DC power (hybrid).  
160 10ASmart data link control.  
168 15ATraction battery control module (hybrid).  
169 10AMotor electric coolant pump (hybrid).  
170 10APedestrian alert control module (hybrid). Traction battery control module (hybrid). Motor electric coolant pump (hybrid).  
202 60ABody control module B+.  
210 30ABody control module start/stop.  
305 5AUpfitter relay 5 (Raptor, Tremor, Raptor R).  
306 5AUpfitter relay 6 (Raptor, Tremor, Raptor R).  
R04 Electronic fan relay 1.  
R06 Electronic fan relay 3.  
R35 Not used.  
R36 Not used.  

Conclusion

Understanding the layout and functionality of the fuse box and relays in the Ford F-150 2021-2023 helps ensure that its complex systems operate smoothly. Regular checks can prevent potential malfunctions, enhancing the truck’s reliability.

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