Ford F-150 fuse box diagrams: complete guides for popular generations

BySerge Barrett

The Ford F-150 stands as an icon of durability and versatility, dominating the truck market with its powerful engines and towing prowess. Yet, even this workhorse can face electrical gremlins, from flickering lights to non-functional accessories, often traced back to the fuse box. Fuses act as safeguards, melting to interrupt circuits during overloads and protecting vital components. Across generations, the F-150’s fuse layouts have advanced alongside tech upgrades like enhanced infotainment and safety systems. This comprehensive guide details locations, assignments, and relays for key models, empowering owners to troubleshoot efficiently. Whether you’re dealing with a no-start or accessory failure, these diagrams turn diagnostics into a straightforward task.

1992-1997 Ford F-150 fuse boxes

Early F-150s emphasize reliability with straightforward setups, including instrument panel for interior and engine compartment for powertrain. Designs are similar across these years, with variations for diesel options.

Passenger compartment fuse box

Located behind the cover to the left of the steering wheel. Pull the cover to access.

  • 1: 30A Heater/Air conditioner blower
  • 2: 30A Wiper/Washer
  • 3: 3A Idle position switch (Diesel)
  • 4: 15A Exterior lamps; Instrument illumination; Trailer exterior lamp relay; Warning buzzer/chime module
  • 5: 10A Air bag restraint
  • 6: 15A Air conditioner clutch; Diesel auxiliary fuel selector; Remote keyless entry
  • 7: 15A Turn lamps
  • 8: 15A Courtesy/dome/cargo lamps; Electric outside mirrors; Keyless entry; Speedometer; Sun visor mirror illumination; Warning buzzer/chime module
  • 9: 25A Power point
  • 10: 4A Instrument illumination
  • 11: 15A Radio; Radio display dimmer
  • 12: 20A (Circuit Breaker) Electronic shift motor 4-wheel drive; Power door locks; Power driver seat; Power lumbar
  • 13: 15A Anti-lock brakes; Brake shift interlock; Electronic engine control; Speed control; Stop/hazard lamps; Stop sense for electronic engine control
  • 14: 20A (Circuit Breaker) Power windows
  • 15: 20A Anti-lock brakes
  • 16: 15A Cigarette lighter; Generic Scan Tool
  • 17: 10A Diesel indicators; Electronic transmission; Gauges; Tachometer; Warning buzzer/chime module; Warning indicators
  • 18: 10A Air bag restraint; Automatic day/night mirror; Brake shift interlock; Electronic shift module 4-wheel drive; Speedometer; Selectable RPM control (Diesel); Speed control (Diesel)

Engine compartment fuse box

In the engine bay, left side.

  • 1: 20A Audio power
  • 2: 15A Fog lamps; 200A alternator (Diesel ambulance only)
  • 3: 30A Daytime running lamps (Canada only); Headlamp flash-to-pass; Horn
  • 4: 25A Trailer back-up lamps; Trailer running lamps
  • 5: 15A Back-up lamps; Daytime running lamp module (DRL) (Canada only); Oxygen sensor heater; Trailer battery charge relay
  • 6: 10A Trailer right-hand stop/turn lamp
  • 7: 10A Trailer left-hand stop/turn lamp
  • 8: 30A maxi Injector driver module
  • 9: 30A (Gas) / 20A (Diesel) Powertrain control system
  • 10: 20A maxi Instrument panel fuses: 15,18; Starter relay coil
  • 11: — Not used
  • 12: Diode Powertrain control system relay coil
  • 13: 50A maxi Instrument panel fuses: 5,9,13
  • 14: — Not used
  • 15: 50A maxi Instrument panel fuses: 1, 7; Power distribution box: fuse 5
  • 16: 20A maxi Fuel pump feed (Gas engine)
  • 17: 50A maxi Alternator charge lamp; Idle position switch (Diesel); Instrument panel fuses: 2, 6, 11,14,17; Power distribution box: fuse 22
  • 18: 30A maxi Trailer battery charge
  • 19: 40A maxi Headlamps
  • 20: 50A maxi Instrument panel fuses: 4, 8, 12,16
  • 21: 30A maxi Trailer brake feed
  • 22: 20A maxi (Gas) / 30A (Diesel) Distributor pickup (Gas engine); Fuel line heater (Diesel); Glow plug controller (Diesel); Ignition coil (Gas engine); Powertrain control system relay coil; Thick film integrated (TFI) module (Gas engine)

Relays:

  • Relay 1: Powertrain control system
  • Relay 2: Fuel pump (Gas engine); Injector driver module (IDM relay) (Diesel)
  • Relay 3: Horn
  • Relay 4: Trailer tow lamps
  • Relay 5: Anti-lock brake system (ABS) pump motor

Additional fuses

Near starter relay.

  • Megafuse 1: 175A Power network box
  • Megafuse 2: 175A Alternator
  • Minifuse 3: 20A Alternator field

1997-2003 Ford F-150 fuse boxes

Tenth-generation models add more electronics, with fuse blocks in the passenger compartment and engine compartment, plus primary battery fuses.

Passenger compartment fuse box

Below and to the left of the steering wheel by the brake pedal, behind the cover.

  • 1: 15A Flasher Relay / Stop/turn lamps and turn indicators
  • 2: 5A Instrument Cluster
  • 3: 20A / 25A Cigar Lighter
  • 4: 5A / 15A Power mirrors, autolamp, remote anti-theft/keyless entry, headlamp relay and parking lamp relay
  • 5: 15A Speed control, daytime running lamps, climate control blend door, backup lamps, A/C clutch coil
  • 6: 5A Shift Lock Actuator, Generic Electronic Module (GEM)/Central Timer Module (CTM) and air suspension module
  • 7: — Not Used
  • 8: 5A Radio, Remote Entry Module, GEM Module/CTM Module
  • 9: — Not Used
  • 10: — Not Used
  • 11: 30A Washer Pump Relay, Wiper Run/Park Relay, Wiper Hi/LO Relay, Windshield Wiper Motor
  • 12: 5A Data Link Connector (DLC) / — Not Used
  • 13: 20A / 15A Brake ON/OFF switch, rear anti-lock brake module and brake pressure switch
  • 14: 15A Battery Saver Relay, Interior Lamp Relay
  • 15: 5A Generic Electronic Module (GEM)
  • 16: 20A Instrument Cluster (W/O DRL), Daytime Running Lamps (DRL) Module, Hi-Beam Headlamps
  • 17: — Not Used
  • 18: 5A Instrument Illumination
  • 19: 10A Instrument Cluster, Air Bag Diagnostic Monitor
  • 20: 5A Audio, GEM Module, Powertrain Control Module (PCM)
  • 21: 15A Clutch Pedal Position (CPP) Switch (W/O RAP), Starter Interrupt Relay (W/RAP)
  • 22: 10A Air Bag Diagnostic Monitor, Passive De-Activation (PAD) Module
  • 23: 10A Trailer tow Battery Charge Relay, 4X4 Hub Solenoid, 4X2 Hub Solenoid, Flasher Relay, Shift on the Fly Relay
  • 24: 10A Blower Relay
  • 25: 5A 4 Wheel Anti-Lock Brake System (4WABS) Module, 4WABS Relay
  • 26: 10A Daytime Running Lamps (DRL) Module, Right Headlamp
  • 27: 5A Main Light Switch, Fog Lamp Relay
  • 28: 10A Left Headlamp
  • 29: 5A Autolamp Module, Instrument Cluster, Transmission Control Switch (TCS), Brake Warning Resistor/Diode Assembly (W/RABS)
  • 30: 30A Radio Noise Capacitor, Ignition Coil, PCM Power Diode
  • 31: — Not Used

Relays:

  • Relay 1: Interior Lamp Relay
  • Relay 2: Battery Saver Relay
  • Relay 3: Not Used
  • Relay 4: One Touch Down Relay
  • Relay 5: Accessory Delay Relay

Engine compartment fuse box

In the engine compartment, left-side. Minifuse panel behind it.

  • 1: 20A Trailer Tow Running Lamp Relay, Trailer Tow Backup Lamp Relay
  • 2: 10A Air Bag Diagnostic Monitor
  • 3: 15A All Unlock Relay, All Lock Relay, Driver Unlock Relay, LH Power Door Lock Switch, RH Power Door Lock Switch
  • 4: 15A Rear Air Suspension (RAS)
  • 5: 20A Horn Relay
  • 6: 15A Radio, Premium Sound Amplifier, CD Changer
  • 7: 15A Main Light Switch, Park Lamp Relay
  • 8: 30A Main Light Switch, Headlamp Relay, Multi-Function Switch
  • 9: 15A Daytime Running Lamps (DRL) Module, Fog Lamp Relay
  • 10: 25A Auxiliary Power Socket
  • 11: — Not Used
  • 12: — Not Used
  • 13: — Not Used
  • 14: 60A/20A 4 Wheel Anti-Lock Brake System (4WABS) Module/Ignition Switch (W/RABS Only)
  • 15: 50A** Rear Air Suspension Compressor
  • 16: 40A** Trailer Tow Battery Charge Relay, Engine Fuse Module (Fuse 2)
  • 17: 30A** Shift on the Fly Relay, Transfer Case Shift Relay
  • 18: 30A** Power Seat Control Switch
  • 19: 20A** Fuel Pump Relay
  • 20: 50A** Ignition Switch
  • 21: 50A** Ignition Switch
  • 22: 50A** Junction Box Fuse/Relay Panel Battery Feed
  • 23: 40A** Blower Relay
  • 24: 30A** PCM Power Relay, Engine Fuse Module (Fuse 1)
  • 25: 30A** Junction Box Fuse/Relay Panel, ACC Delay Relay
  • 26: — Not Used
  • 27: — Not Used
  • 28: 30A** Trailer Electronic Brake Controller
  • 29: — Not Used

Relays:

  • Relay 1: Windshield wipers HI/LO speed
  • Relay 2: Windshield wipers run/park relay
  • Relay 3: Washer pump relay
  • Relay 4: Fuel pump relay
  • Relay 5: Horn relay
  • Relay 6: PCM power relay

Primary battery fuses (megafuses)

Under the primary battery fuse cover next to starter relay.

  • 1: 175A Power network box megafuse
  • 2: 175A Alternator megafuse
  • 3: 20A Alternator field minifuse

Engine minifuse panel

Behind the power distribution box.

  • 1: 5A Powertrain control module (PCM)
  • 2: 20A Trailer tow stop/turn lamps
  • 3: — Not used
  • 4: — Not used
  • 5: — Not used
  • 6: — Not used

2004-2008 Ford F-150 fuse boxes

Eleventh-generation F-150s incorporate more luxury features, with fuses in the passenger compartment/power distribution box and auxiliary relays.

Passenger compartment fuse panel / power distribution box

Under the right-hand side of the instrument panel, behind the cover.

  • 1: 10A Run/Accessory – Wipers, Instrument cluster, Audio for XL/STX
  • 2: 20A Stop/Turn lamps, Brake on/off switch, Speed control deactivate switch
  • 3: 7.5A / 5A Power mirrors, Memory seats and pedals
  • 4: 10A DVD battery power, Power fold mirror
  • 5: 7.5A Keep alive memory for Powertrain Control Module (PCM) and climate control module
  • 6: 15A Parklamps, BSM, Instrument panel illumination
  • 7: 5A Radio (start signal)
  • 8: 10A Heated mirrors, Switch indicator
  • 9: 20A Fuel pump relay, Fuel injectors, Intake manifold runner control (4.2L)
  • 10: 20A Trailer tow back-up lamps relay (PCB1), Trailer tow parklamp relay (R201)
  • 11: 10A A/C clutch, 4×4 solenoid
  • 12: 5A PCM relay coil
  • 13: 10A Climate control module power, Flasher relay
  • 14: 10A Back-up lamp and Daytime Running Lamps (DRL) relay coil, A/C pressure switch, Redundant speed control switch, Heated PCV (5.4L), Trailer tow back-up lamps relay coil, ABS, Reverse park aid, EC mirror, Navigation
  • 15: 5A Overdrive cancel, Cluster, Brake-Shift Interlock (BSI)
  • 16: 10A Brake-shift interlock solenoid
  • 17: 15A Fog lamp relay (R202)
  • 18: 10A Run/Start feed – Overhead power point, Electrochromatic mirror, Heated seats, BSM, Compass, RSS (Reverse Sensing System)
  • 19: 10A Restraints (Air bag module)
  • 20: 10A Battery feed for overhead power point / 10A PCM 4×4 power
  • 21: 15A Cluster keep alive power
  • 22: 10A Delayed accessory power for audio, power door lock switch and moonroof switch illumination
  • 23: 10A RH low beam headlamp
  • 24: 15A Battery saver power for demand lamps
  • 25: 10A LH low beam headlamp
  • 26: 20A Horn relay (PCB3), Horn power
  • 27: 5A Passenger Air bag Deactivation (PAD) warning lamp, Cluster air bag warning lamp, Cluster RUN /START power
  • 28: 5A SecuriLock transceiver (PATS)
  • 29: 15A PCM 4×4 power
  • 30: 15A PCM 4×4 power
  • 31: 20A Radio power
  • 32: 15A Vapor Management Valve (VMV), A/C clutch relay, Canister vent, Heated Exhaust Gas Oxygen (HEGO) sensors #11 and #21, CMCV, Mass Air Flow (MAF) sensor, VCT, Heated Positive Crankcase Ventilation (PCV) valve (4.2L engine), CID sensor (4.2L engine)
  • 33: 15A Shift solenoid, CMS #12 and #22
  • 34: 20A Fuel injectors and PCM power, Intake Manifold Runner Control (4.2L engine)
  • 35: 20A Instrument cluster high beam indicator, High beam headlamps
  • 36: 10A Trailer tow right turn/stop lamps
  • 37: 20A Rear power point / Center console power point
  • 38: 25A Subwoofer power
  • 39: 20A Instrument panel power point / Center console power point
  • 40: 20A Low beam headlamps, DRL
  • 41: 20A Cigar lighter, Diagnostic connector power
  • 42: 10A Trailer tow left turn/stop lamps
  • 101: 30A Starter solenoid
  • 102: 20A Ignition switch feed
  • 103: 20A ABS valves
  • 104: — Not used
  • 105: 30A Electric trailer brakes
  • 106: 30A Trailer tow battery charge
  • 107: 30A Power door locks (BSM)
  • 108: 30A Passenger power seat
  • 109: 30A Driver power seat, Adjustable pedals
  • 110: — Not used
  • 111: 30A 4×4 relays
  • 112: 40A ABS pump power
  • 113: 30A Wipers and washer pump
  • 114: 40A Heated backlite, Heated mirror power
  • 115: — Not used
  • 116: 30A Blower motor
  • 117: — Not used
  • 118: 30A Heated seats
  • 401: 30A Circuit Breaker Power windows, Moonroof, Power sliding backlite

Relays:

  • R01: Full ISO relay Starter solenoid
  • R02: Full ISO relay Accessory delay
  • R03: Full ISO relay Hi-beam headlamps
  • R04: Full ISO relay Heated backlite
  • R05: Full ISO relay Trailer tow battery charge
  • R06: Full ISO relay Blower motor
  • R201: Half ISO relay Trailer tow park lamps
  • R202: Half ISO relay Fog lamps
  • R203: Half ISO relay PCM

Auxiliary relay box (with DRL)

Near the fuse box.

  • Relay 201: Daytime running lamps resistor
  • Relay 301: Daytime running lamps full
  • Relay 302: Daytime running lamps hi-beam disable
  • Diode 1: A/C clutch

Auxiliary relay box (without DRL)

Near the fuse box.

  • Relay 201: Not used
  • Relay 301: Not used
  • Relay 302: Not used
  • Diode 1: A/C clutch

2009-2014 Ford F-150 fuse boxes

Twelfth-generation trucks feature advanced safety, with fuses in passenger compartment and power distribution box, plus auxiliary relay box for SVT Raptor.

Passenger compartment fuse panel

Under the right-hand side of the instrument panel, behind the cover.

  • 1: 30A Driver side front window / Moon roof
  • 2: 15A Not used (spare) / SYNC
  • 3: 30A Passenger side front window / Not used (spare)
  • 4: 10A Interior lamps
  • 5: 20A Memory module
  • 6: 5A Not used (spare)
  • 7: 7.5A Power mirror switch, Memory seat module
  • 8: 10A Not used (spare)
  • 9: 10A Radio display, GPS module, Navigation display
  • 10: 10A Run/accessory relay
  • 11: 10A Instrument cluster / GPS module
  • 12: 15A Interior lighting, Puddle lamps, Backlighting, Cargo lamp
  • 13: 15A Right turn signals/stop lamps
  • 14: 15A Left turn signals/stop lamps
  • 15: 15A Reverse lights, High-mounted stop lamp
  • 16: 10A Right low-beam headlamp
  • 17: 10A Left low-beam headlamp
  • 18: 10A Brake-shift interlock, Keypad illumination, PCM wakeup, PATS
  • 19: 20A Audio amplifier
  • 20: 20A Power door locks
  • 21: 10A Ambient lighting
  • 22: 20A Horn
  • 23: 15A Steering wheel control module
  • 24: 15A Datalink connector, Steering wheel control module
  • 25: 15A Not used (spare)
  • 26: 5A Radio frequency module
  • 27: 20A Not used (spare)
  • 28: 15A Ignition switch
  • 29: 20A Radio/Navigation
  • 30: 15A Front parking lamps
  • 31: 5A BOO – IP, BOO – Engine
  • 32: 15A Delay/accessory – moon roof, power windows, locks, Automatic dimming mirror/Compass
  • 33: 10A Heated seats
  • 34: 10A Reverse sensing system, 4×4 switch, Rear video, Off road indicator (SVT Raptor)
  • 35: 5A Hill descent switch (SVT Raptor)
  • 36: 10A Restraint control module, Occupant classification system module
  • 37: 10A Trailer brake control
  • 38: 10A Delayed accessory – 110V power point, Radio (AM/FM)
  • 39: 15A High beam headlamps
  • 40: 10A Rear park lamps
  • 41: 7.5A Passenger airbag deactivation indicator, Upfitter switch (SVT Raptor)
  • 42: 5A Overdrive cancel switch
  • 43: 10A Not used (spare)
  • 44: 10A Not used (spare)
  • 45: 5A Not used (spare)
  • 46: 7.5A Occupant classification sensor (OCS)
  • 47: 30A Circuit Breaker Power windows, Moon roof, Power sliding backlight
  • 48: — Delayed accessory relay (Feeds fuse 41 and circuit breaker 47)

Power distribution box

In the engine compartment.

  • 1: — PCM power relay
  • 2: — Starter relay
  • 3: — Blower motor relay
  • 4: — Not used
  • 5: — Rear defroster relay
  • 6: — Upfitter relay 1
  • 7: 30A** Passenger compartment fuse panel
  • 8: — Not used
  • 9: — Not used
  • 10: 30A** Driver power seat
  • 11: 20A** Cigar lighter / Power point
  • 12: 15A* Brake on/off, Vent window (SuperCrew)
  • 13: 15A* Heated mirror
  • 14: — Not used
  • 15: — Not used (SVT Raptor)
  • 16: 40A** Rear defroster
  • 17: 30A** Passenger power seat
  • 18: 30A** Driver and memory module
  • 19: — Not used
  • 20: 20A** 4×4 module (electronic shift)
  • 21: 30A** Trailer tow battery charge relay
  • 22: 20A** Cigar lighter
  • 23: — A/C clutch relay
  • 24: — Not used
  • 25: — Not used
  • 26: 10A* PCM – keep alive power, Canister vent, PCM power relay coil
  • 27: 20A* Fuel pump relay
  • 28: 10A* Back-up lamp relay
  • 29: 10A* A/C clutch
  • 30: 10A* A/C clutch relay coil
  • 31: — Not used
  • 32: 40A** Blower motor relay
  • 33: 20A** 110V AC power point
  • 34: 30A** Auxiliary blower motor
  • 35: 30A** PCM power relay
  • 36: 30A** ABS
  • 37: — Trailer tow stop/turn relay (right)
  • 38: — Trailer tow stop/turn relay (left)
  • 39: — Back-up lamp relay
  • 40: — Blower motor relay
  • 41: — Not used
  • 42: 30A** Passenger compartment fuse panel
  • 43: 20A** Trailer tow park lamp relay
  • 44: — Trailer tow stop lamp relay
  • 45: — Not used
  • 46: 15A* Brake on/off, Mirror markers, CHMSL, Trailer tow stop lamp, TPMS, Puddle lamps
  • 47: 60A** ABS
  • 48: — Not used
  • 49: 30A** Wiper relay
  • 50: — Not used
  • 51: 40A** Rear defroster relay
  • 52: 30A** Passenger compartment fuse panel
  • 53: — Not used
  • 54: — Not used
  • 55: — Upfitter relay 3
  • 56: — Upfitter relay 4
  • 57: 30A** Passenger compartment fuse panel
  • 58: 30A** Auxiliary power point
  • 59: 30A** Auxiliary power point
  • 60: — Not used
  • 61: — Not used
  • 62: — Not used
  • 63: 30A** Trailer tow park lamp relay
  • 64: — Not used
  • 65: 20A** Auxiliary power point (instrument panel)
  • 66: 20A** Auxiliary power point (inside center console)
  • 67: 20A** Trailer tow park lamps
  • 68: 20A** 4×4 module (electronic shift)
  • 69: 30A** Passenger power seats
  • 70: — Not used
  • 71: — Not used
  • 72: 20A** Auxiliary power point (rear)
  • 73: — Not used
  • 74: 30A** Driver power seat
  • 75: 15A* PCM – voltage power 1
  • 76: 20A* Voltage power 2, Voltage – air mass air flow/intake air temp, CMS 12 and 22 with 6R80 transmission, Brake on/off switch (BOO)
  • 77: 10A* Voltage power 3, Electric fan clutch, A/C clutch relay coil, Floor shifter (4-speed transmission)
  • 78: 15A* Voltage power 4, 4×4 solenoid, Coil on plug
  • 79: 10A* CMS 4-speed transmission, 12 and 22 with 4-speed transmission
  • 80: — Not used
  • 81: — Not used
  • 82: 10A* Electronic trailer brake, Brake control module
  • 83: — Not used
  • 84: — Not used
  • 85: — Electric fan relay (high speed)
  • 86: — PCM relay
  • 87: — Fuel pump relay
  • 88: — Trailer tow battery charge relay
  • 89: — Cigar lighter
  • 90: 20A** Power point
  • 91: 20A** Power point
  • 92: 20A** Power point
  • 93: 25A** Auxiliary power point
  • 94: 25A** Auxiliary power point
  • 95: 25A** Electric fan relay (low speed)
  • 96: — Not used
  • 97: — Not used
  • 98: — Electric fan relay (medium speed)
  • 99: — Not used

Auxiliary relay box (SVT Raptor only)

In the left rear corner of the engine compartment.

  • Relay 1: Trailer tow battery charge
  • Relay 2: Not used
  • Relay 3: Not used
  • Relay 4: Not used
  • Relay 5: Not used
  • Relay 6: Not used

2015-2020 Ford F-150 fuse boxes

Thirteenth-generation models emphasize efficiency, with fuses in passenger compartment and power distribution box.

Passenger compartment fuse panel

In the right-hand side of the passenger footwell behind a trim panel.

  • 1: 10A Demand lamp relay. Power seats relay. Glove box. Vanity lamps. Overhead console. Dome. Courtesy. Map lamps.
  • 2: 7.5A Memory module logic. Memory seat switches. Lumbar motor.
  • 3: 20A Driver door lock motor.
  • 4: 5A Trailer brake control.
  • 5: 20A Not used (spare).
  • 6: 10A Not used (spare).
  • 7: 10A Not used (spare).
  • 8: 10A Not used (spare).
  • 9: 10A Not used (spare).
  • 10: 5A Embedded modem module.
  • 11: 5A Combined sensor module.
  • 12: 7.5A Climate head module. Smart datalink converter.
  • 13: 7.5A Cluster. SCCM / Smart climate control module.
  • 14: 10A Brake on/off switch.
  • 15: 10A Smart datalink converter.
  • 16: 15A Tailgate release.
  • 17: 5A HUD. Terrain switch.
  • 18: 5A Ignition switch and passive-entry passive-start start stop switch. Key inhibit solenoid.
  • 19: 7.5A Extended power module (except Raptor). Restraint control module (Raptor only).
  • 20: — Not used.
  • 21: 5A HUD. In car temperature with humidity sensor.
  • 22: 5A Passenger occupant detection (Raptor only)
  • 23: 10A Power driven rear glass switch. Inverter. Driver side window. Moonroof. Vista roof.
  • 24: 20A Central lock/unlock.
  • 25: 30A Driver door control module.
  • 26: 30A Passenger door control module.
  • 27: 30A Vista roof. Moonroof.
  • 28: 20A Not used (spare).
  • 29: 30A Not used (spare).
  • 30: 30A Not used (spare).
  • 31: 15A Adjustable pedal switch and motor.
  • 32: 10A Multi-function display. Global position system. SYNC. Radio frequency receiver.
  • 33: 20A Radio.
  • 34: 30A Run-start relay.
  • 35: 5A Selectable drive mode switch (Raptor only).
  • 36: 15A 360 camera module. Heated steering wheel module. Rear-view mirror. Rear heated seats. Lane departure warning module. Automatic high beam module. Image processing module A.
  • 37: 20A Not used (spare).
  • 38: 30A Circuit breaker Rear window switches and motors.

Power distribution box

In the engine compartment.

  • 1: — Not used.
  • 2: — Not used.
  • 3: — Not used.
  • 4: — Telescoping side-view mirror.
  • 5: 40A Rear window defroster.
  • 6: — Not used.
  • 7: — Not used.
  • 8: — Telescoping side-view mirror.
  • 9: — Not used.
  • 10: — Not used.
  • 11: 60A Automatic brake system motor.
  • 12: 50A Body control module 1.
  • 13: 60A Body control module 2.
  • 14: 20A Amplifier.
  • 15: 25A 4×4.
  • 16: 10A Spot light module.
  • 17: 15A Heated seat.
  • 18: 10A Steering-column lock.
  • 19: 10A Power seats.
  • 20: 15A Snow plow. Rear heated seats.
  • 21A: — Not used.
  • 21B: — Not used.
  • 22: 30A Windshield wiper motor.
  • 23: 15A Rain sensor.
  • 24: 25A Series fan feed.
  • 25: — Not used.
  • 26: 30A Driver seat motors.
  • 27: 30A Passenger power seat.
  • 28: 30A Climate controlled seat.
  • 29: — Not used.
  • 30: — Air conditioner clutch relay.
  • 31: — Not used.
  • 32: — Not used.
  • 33: 50A Electric fan 3.
  • 34: 25A Trailer tow park lamps.
  • 35: 20A Trailer tow stop-turn relay fuse.
  • 36: 25A Trailer tow lamps module.
  • 37: 50A Electric fan 1.
  • 38: 10A Alt A sensor.
  • 39: 10A Integrated wheel end solenoid.
  • 40: 15A E-locker.
  • 41: 10A Telescoping mirror.
  • 42: 30A Transmission fluid pump.
  • 43: 25A Horn.
  • 44: 10A Air conditioner clutch.
  • 45: 10A Powertrain control module relay coil.
  • 46: 10A Wiper relay coil.
  • 47: — Not used.
  • 48: — Not used.
  • 49: 30A Trailer brake control module.
  • 50: 30A Power running boards.
  • 51: — Fuel pump relay.
  • 52: — Not used.
  • 53: — Not used.
  • 54: 30A Voltage quality module. Body-control-module voltage-quality-module feed.
  • 55: 40A Body control module RP2 feed.
  • 56: 20A Fuel pump.
  • 57: 30A Right-hand EPB actuator.
  • 58: 30A Left-hand EPB actuator.
  • 59: 30A Starter.
  • 60: 40A Blower motor.
  • 61: 30A Brake control module. Automatic brake system valves.
  • 62: 50A Body control module 1.
  • 63: 15A 4×4.
  • 64: 30A 4×4.
  • 65: 30A Heated front seats.
  • 66: 30A Auxiliary blower motor.
  • 67: 50A Body control module 2.
  • 68: 30A Heated rear window.
  • 69: 30A Anti-lock brake system valves.
  • 70: 30A Passenger seat.
  • 71: 50A Electric fan 1.
  • 72: 30A Trailer tow stop/turn lamps.
  • 73: 50A Electric fan 3.
  • 74: 30A Trailer tow battery charge.
  • 75: 50A Body control module RP1 feed.
  • 76: 30A Power seat – driver.
  • 77: 30A Climate controlled seat module.
  • 78: 40A Ignition run/start relay.
  • 79: 40A Blower motor.
  • 80: 25A Wipers.
  • 81: 40A 110 volt inverter.
  • 82: — Not used.
  • 83: 20A Trailer tow stop/turn lamps.
  • 84: 30A Trailer tow battery charge.
  • 85: — Not used.
  • 86: 30A ABS module.
  • 87: — Not used.
  • 88: — Not used.
  • 89: 40A Starter motor.
  • 90: — Not used.
  • 91: — Not used.
  • 92: — Not used.
  • 93: — Not used.
  • 94: — Not used.
  • 95: — Not used.
  • 96: — Not used.
  • 97: — Not used.
  • 98: — Not used.
  • 99: — Not used.

Relays:

  • R02: Electric fan relay 2.
  • R05: Electric fan relay 1.
  • R36: Electric fan relay 3.

2021-present Ford F-150 fuse boxes

Fourteenth-generation F-150s integrate hybrid options and smart tech, with body control module and underhood fuse boxes.

Body control module fuse box

On the right-hand side of the passenger footwell behind a trim panel.

  • 1: — Not used.
  • 2: 10A Delayed accessory feed.
  • 3: 7.5A Wireless charger.
  • 4: 20A Not used.
  • 5: — Not used.
  • 6: 10A Driver power window switch.
  • 7: 10A Gear shift module.
  • 8: 5A Cell phone passport module.
  • 9: 5A Combined sensor module.
  • 10: — Not used.
  • 11: — Not used.
  • 12: 7.5A Enhanced central gateway. Climate control.
  • 13: 7.5A Instrument cluster. Steering column control module.
  • 14: 15A Not used (spare).
  • 15: 15A Integrated control panel. SYNC.
  • 16: — Not used.
  • 17: 7.5A Headlamp control module.
  • 18: 7.5A Not used.
  • 19: 5A Headlamp switch.
  • 20: 5A Passive start. Ignition switch. Key inhibit solenoid.
  • 21: 5A Trailer brake switch.
  • 22: 5A Not used.
  • 23: 30A Driver door control module.
  • 24: 30A Moonroof.
  • 25: 20A Not used.
  • 26: 30A Passenger door control module.
  • 27: 30A Not used.
  • 28: 30A Amplifier.
  • 29: 15A 12 inch display. Adjustable pedals.
  • 30: 5A Not used.
  • 31: 10A RF receiver. Driver monitor. Terrain management switch.
  • 32: 20A Audio control module.
  • 33: — Not used.
  • 34: 30A Run/start relay.
  • 35: 5A 400 watt inverter run/start.
  • 36: 15A Auto-dimming interior mirror. Rear heat seat run/start. Adaptive front steering run/start. Heated wheel (vehicles without adaptive front steering).
  • 37: 20A Advanced driver-assistance systems.
  • 38: 30A Circuit breaker Rear power windows.

Under hood fuse box

In the engine compartment.

  • 1: 40A Body control module – battery power in feed 1.
  • 3: 40A Body control module – battery power in feed 2.
  • 4: 30A Fuel pump.
  • 5: 5A Powertrain control module coil.
  • 6: 25A Powertrain control module power (gas, hybrid).
  • 7: 20A Powertrain control module power.
  • 8: 20A Powertrain control module power (hybrid). / 10A Powertrain control module power (gas, diesel, Raptor, Tremor).
  • 9: 20A Powertrain control module power (gas, hybrid).
  • 10: 20A Powertrain control module power (diesel).
  • 11: 30A Starter motor.
  • 13: 40A Blower motor.
  • 15: 25A Horn.
  • 19: 20A Snow plow switch (gas). Rear heated seats (gas, diesel, hybrid).
  • 21: 10A Headlamp run/start feed.
  • 22: 10A Electronic power assist steering.
  • 23: 10A Electric brake boost.
  • 24: 10A Powertrain control module (gas, hybrid). Transmission control module (diesel). Glow plug control module (diesel).
  • 25: 10A Center high-mounted stop lamp camera. Trailer camera. 2 kW inverter. 24 V alternator – run/start feed. Analog rear video camera.
  • 28: 50A Electric brake boost.
  • 29: 50A Electric brake boost.
  • 30: 40A Driver power seat.
  • 31: 30A Passenger power seat.
  • 32: 20A Auxiliary power point.
  • 33: 20A Auxiliary power point. USB smart charger.
  • 34: 20A Auxiliary power point.
  • 37: 30A Tailgate module.
  • 38: 40A Climate controlled seat module. Power running boards.
  • 41: 25A Power sliding back window.
  • 42: 30A Trailer brake control module.
  • 47: 50A Cooling fan (gas, hybrid, Raptor, Tremor).
  • 48: 20A Rear heated seats (Raptor, Tremor).
  • 49: 50A Cooling fan (gas, hybrid, Raptor, Tremor).
  • 50: 40A Heated backlight (gas, hybrid).
  • 55: 30A Trailer tow park lamps.
  • 56: 20A Trailer tow stop and turn lamps (4-pin connector).
  • 58: 10A Trailer tow backup lamps.
  • 60: 15A Upfitter 1 relay (Raptor, Tremor).
  • 61: 15A Upfitter 2 relay (Raptor, Tremor).
  • 62: 10A Upfitter 3 relay (Raptor, Tremor).
  • 63: 10A Upfitter 4 relay (Raptor, Tremor).
  • 64: 25A Four-wheel drive.
  • 65: 15A Transmission control module (diesel).
  • 67: 20A Transmission run/start.
  • 69: 30A Left-hand windshield wiper.
  • 82: 25A Four-wheel drive.
  • 83: 50A Supplemental heater (diesel).
  • 84: 50A Supplemental heater (diesel).
  • 85: 50A Supplemental heater (diesel).
  • 86: 25A Selective catalytic reduction system (diesel).
  • 91: 20A Trailer tow light module.
  • 95: 15A Powertrain control module power (hybrid).
  • 98: 10A Powertrain control module power (hybrid). Coolant pumps (hybrid).
  • 100: 15A Left-hand headlamps.
  • 101: 15A Right-hand headlamps.
  • 105: 50A Active front steering.
  • 107: 30A Trailer tow battery charge.
  • 108: 15A Spot lamps (police).
  • 121: 30A Fuel filter heater (diesel).
  • 124: 5A Rain sensor module.
  • 125: 10A USB smart charger.
  • 134: 25A Multi-contour seats relay (gas, diesel, hybrid).
  • 138: 10A Tailgate release.
  • 139: 5A USB smart charger.
  • 146: 15A Traction battery control module (hybrid).
  • 147: 40A Change air cooler fan relay (Raptor, Tremor).
  • 159: 5A DC/DC power (hybrid).
  • 160: 10A Smart data link control.
  • 168: 15A Traction battery control module (hybrid).
  • 169: 10A Motor electric cool pump (hybrid).
  • 170: 10A Pedestrian alert control module (hybrid). Traction battery control module (hybrid). Electric motor cool pump (hybrid).
  • 202: 60A Body control module B+.
  • 210: 30A Body control module start stop.
  • 305: 5A Upfitter 5 relay (Raptor, Tremor).
  • 306: 5A Upfitter 6 relay (Raptor, Tremor).

Relays:

  • R04: Electronic fan relay 1.
  • R06: Electronic fan relay 3.
  • R35: Supplemental heater (diesel).
  • R36: Supplemental heater (diesel).

Advanced tips for Ford F-150 owners

Turn fuse hunting into a detective game: Match symptoms to boxes, like radio issues to interior fuses. For elusive faults, inspect for corrosion in underhood areas exposed to weather. Modern F-150s with modules may need OBD scans post-replacement to clear codes. Carry a fuse assortment matched to your model for emergencies, and apply grease to terminals in wet climates. Recognizing clusters, such as multiple lighting failures, might point to trailer mods. These insights not only resolve glitches but unlock customization via upfitter switches, making your F-150 a tailored powerhouse for any job.

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