Where are the fuse boxes located?

  1. Passenger compartment fuse panel / power distribution box : The fuse panel is located under the right-hand side of the instrument panel.
  2. Engine Compartment Relay Box: The power distribution box is located in the engine compartment (left-side).

1. Passenger Compartment

2004 ford f 150 passenger compartment fuse box location

How to access fuse panel ?


Remove the trim panel and fuse box cover to access the fuses.

To remove the fuse box cover, place
a finger behind the PULL tab and
your thumb above the PULL tab as
shown in the illustration, then pull
the cover off.

2. Engine Compartment Fuse Box

2004 ford f 150 under hood relay box location

2004 Ford F 150 Fuse Box Diagram

Passenger Compartment Fuse Panel / Power Distribution Box

2004 Ford F 150 Passenger Compartment Fuse Box Diagram

2004 ford f 150 fuse panel diagram

2004 Ford F 150 Passenger Compartment Fuse Details

AmpsFuse Function
110 ARun/Accessory – Wipers, Instrument cluster
220 AStop/Turn lamps, Speed control deactivate switch
35 APower mirrors, Memory logic power, Memory seats and pedals
410 ADVD battery power
57.5 AKeep alive memory for Powertrain Control Module (PCM) and climate control module
615 AParklamps, BSM, Instrument panel illumination
75 ARadio (start signal)
810 AHeated mirrors, Switch indicator
9Not used
1020 ATrailer tow back-up lamps relay (PCB1), Trailer tow parklamp relay (R201)
1110 AA/C clutch, 4×4 solenoid
12Not used
1310 AClimate control module power
1410 ABack-up lamp and Daytime Running Lamps (DRL) relay coil, A/C pressure swatch, Brake-shift interlock solenoid
155 AOverdrive cancel, Cluster, Brake-Shift Interlock (BSI)
1610 AABS module (Run/Start power)
1715 AFog lamp relay (R202)
1810 ARun/Start feed – Flasher relay, Electrochromatic mirror, Heated seats, BSM, Compass, RSS (Reverse Sensing System)
1910 ARestraints (Air bag module)
2015 APCM 4×4 power
2115 ACluster keep alive power
2210 ADelayed accessory power for audio, power door lock switch and moonroof switch illumination
2310 ARH low beam headlamp
2415 ABattery saver power for demand lamps
2510 ALH low’ beam headlamp
2620 AHorn relay (PCB3), Horn power
275APassenger Air bag Deactivation (PAD) warning lamp, Cluster air bag warning lamp, Cluster RUN /START power
285ASecuriLock transceiver (PATS)
2915 APCM 4×4 power
30Not used
3120 ARadio power
3215 AVapor 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
3315 AShift solenoid, CMS #12 and #22
3420 AFuel injectors and PCM power
3520 AInstrument cluster high beam indicator, High beam headlamps
3610 ATrailer tow right turn/stop lamps
3720 ARear power point
3825 ASubwoofer power
3920 AInstrument panel power point
4020 ALow beam headlamps, DRL
4120 ACigar lighter, Diagnostic connector power
4210 ATrailer tow left turn/stop lamps
10130AStarter solenoid
10220AIgnition switch feed
10320AABS valves
104Not used
10530AElectric trailer brakes
10630ATrailer tow battery charge
10730APower door locks (BSM)
10830APassenger power seat
10930ADriver power seat, Adjustable pedals
110Not used
11130A4×4 relays
11240AABS pump power
11330AWipers and washer pump
11440AHeated backlite, Heated mirror power
115Not used
11630ABlower motor
117Not used
11830AHeated seats
40130A Circuit breakerPower windows, Moonroof, Power sliding backlite
R01Full ISO relayStarter solenoid
R02Full ISO relayAccessory delay
R03Full ISO relayHi-beam headlamps
R04Full ISO relayHeated backlite
R05Full ISO relayTrailer tow battery charge
R06Full ISO relayBlower motor
R201Half ISO relayTrailer tow park lamps
R202Half ISO relayFog lamps
R203Half ISO relayPCM

2004 Ford F 150 Relay Box diagram under hood

2004 Ford F 150 Relay Box Diagram

2004 Ford F 150 Relay Box Details

NoAmpsFuse Function
F015AClockspring illumination
R014×4 CCW
R024×4 CW
R03Daytime Running Lamps (DRL) (if equipped, otherwise not used)
R202A/C clutch
D01A/C clutch diode

WARNING: The terminal and harness assignments for individual connectors may vary depending on the vehicle’s equipment level, model, and market. It is recommended to refer to the fuse box diagram provided at the back of the fuse box cover for accurate information.

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