2013 Ford F-150 Fuse Box Diagram: Both Panels, Every Fuse
Your 2013 F-150 has two fuse boxes. The Smart Junction Box (cab panel) sits
behind the passenger side kick panel, right of the steering wheel. The power
distribution box is in the engine compartment, center, above the radiator.
The cigar lighter and front auxiliary power point share fuse 22, rated 20A,
in the engine bay box, not the cab panel.
Where are the fuse boxes on a 2013 F-150?
Smart Junction Box (passenger compartment panel). Behind the passenger
side kick panel, right of the steering wheel, behind a removable cover. This
holds fuses 1 to 48 plus one relay position, all mini fuses except the
circuit breaker at 48.
Power distribution box. Engine compartment, center, above the radiator,
sometimes called the Battery Junction Box. It carries 85 numbered positions
split between mini fuses, cartridge (FMX/JCASE) fuses, and dedicated relays,
plus an auxiliary relay box on SVT Raptor trucks near the windshield.
Most sites get this wrong: two fuses change inside the same generation
The 2009 to 2014 F-150 is one truck generation, so most fuse charts online
publish a single merged table for all six years. That merge hides a real
change that lands right on 2013.
I cross-checked fuse-box.info’s separate year tables for 2009, 2010, 2011,
2012, 2013 and 2014 against StartMyCar’s 2013-specific page. Both agree:
fuses 16 and 35 in the power distribution box are listed Not used on
2009 through 2012 trucks. Starting with the 2013 model year, both positions
carry a live 20A cartridge fuse for the HID headlamp circuit, passenger side
on fuse 16 and driver side on fuse 35. That assignment carries through 2014
unchanged.
The cab panel changes too. Fuse 21 protects ambient lighting at 10A on
2009 through 2012 trucks. From 2013 on, fuse-box.info and StartMyCar both
list fuse 21 as not used (spare).
| What changed | 2009 to 2012 | 2013 to 2014 |
|---|---|---|
| Fuse 16, power distribution box | Not used | HID headlamp, passenger side, 20A |
| Fuse 35, power distribution box | Not used | HID headlamp, driver side, 20A |
| Fuse 21, cab panel | Ambient lighting, 10A | Not used (spare) |
| Fuse 22, power distribution box | Cigar lighter / front power point, 20A | Unchanged, 20A |
If your truck is a 2009 through 2012 model instead, do not use fuses 16 and
35 from this chart, they carry nothing on those years. If you have a 2009 or
2010 truck specifically, the whole Smart Junction Box uses an older layout
again, not the one below. That earlier renumbering is documented on our
2011 Ford F-150 fuse box
diagram.
2013 F-150 Smart Junction Box fuse chart
Passenger side kick panel. All mini fuses except the circuit breaker.
| Fuse | Amps | Circuit protected |
|---|---|---|
| 1 | 30A | Driver side front window |
| 2 | 15A | SYNC, display module (8 inch) |
| 3 | 30A | Passenger side front window |
| 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, electric finish panel module |
| 10 | 10A | Run/accessory relay |
| 11 | 10A | Instrument cluster |
| 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 | Not used (spare) |
| 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 |
| 30 | 15A | Front parking lamps |
| 31 | 5A | Brake on/off: instrument panel, engine |
| 32 | 15A | Delay/accessory: moonroof, power windows, locks, auto dimming mirror, compass, trailer tow power telescope mirrors |
| 33 | 10A | Rear heated seats |
| 34 | 10A | Reverse sensing system, 4×4 switch, rear video, off road indicator (SVT Raptor), front video (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 |
| 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 | 10A | Climate controls module |
| 47 | 15A | Fog lamps, exterior mirror turn signals |
| 48 | 30A circuit breaker | Power windows, power sliding back window |
Relay in this panel: position 49, delayed accessory relay.
Assignments vary with trim and options. Your truck may not use every
position listed. Fuse numbers 16 and 35 in this cab panel table are low beam
headlamp fuses and are unrelated to the fuse 16 and 35 HID positions in the
engine bay box below. Same numbers, two different boxes, two different jobs.
2013 F-150 power distribution box chart
Engine compartment, center, above the radiator. Full fuse and relay
assignment.
| Position | Amps | Circuit protected |
|---|---|---|
| 1 | Relay | PCM relay (3.7L, 5.0L, 6.2L engines) |
| 2 | Relay | Starter relay |
| 3 | Relay | Blower motor relay |
| 4 | Relay | Rear window defroster relay |
| 5 | Relay | Electric fan relay (high speed) |
| 6 | Relay | Trailer tow park lamp relay |
| 7 | Relay | Run/start relay |
| 8 | Relay | Fuel pump relay |
| 9 | Relay | Trailer tow battery charger relay |
| 10 | Relay | PCM relay (3.5L engine) |
| 11 | 30A | Power running board motors |
| 12 | 40A / 50A | Electric fan (40A on 3.7L/5.0L; 50A on 3.5L, 6.2L with max trailer tow, SVT Raptor) |
| 13 | 30A | Starter relay power |
| 14 | 30A | Passenger power seat |
| 15 | 40A / 50A | Electric fan (same split as fuse 12) |
| 16 | 20A | HID headlamp, passenger side (new for 2013, not used 2009-2012) |
| 17 | 30A | Trailer brake control |
| 18 | 30A | Upfitter switch 1 (SVT Raptor) |
| 19 | 30A | Upfitter switch 2 (SVT Raptor) |
| 20 | 20A | 4×4 module, electronic shift |
| 21 | 30A | Trailer tow battery charge relay power |
| 22 | 20A | Cigar lighter, front auxiliary power point |
| 23 | Relay | A/C clutch relay |
| 24 | – | Not used |
| 25 | – | Not used |
| 26 | 10A | PCM keep alive power, PCM relay coil, canister vent solenoid (3.7L, 5.0L, 6.2L) |
| 27 | 20A | Fuel pump relay power |
| 28 | 10A | Upfitter switch 4 (SVT Raptor) |
| 29 | 10A | 4×4 integrated wheel end solenoid |
| 30 | 10A | A/C clutch relay power |
| 31 | 15A | Run/start relay power |
| 32 | 40A | Rear window defroster relay power, heated mirror relay power |
| 33 | 40A | 110V AC power point |
| 34 | 40A / 50A | PCM relay power (50A on 3.5L engine) |
| 35 | 20A | HID headlamp, driver side (new for 2013, not used 2009-2012) |
| 36 | 30A | Roll stability control / anti-lock brake system |
| 37 | Relay | Trailer tow left stop/turn relay |
| 38 | Relay | Trailer tow right stop/turn relay |
| 39 | Relay | Trailer tow back-up lamps relay |
| 40 | Relay | Electric fan relay |
| 41 | 15A | Front camera washer (SVT Raptor) |
| 42 | 5A | Run/start relay coil |
| 43 | 15A | Trailer tow back-up lamp relay power |
| 44 | 15A | Upfitter switch 3 (SVT Raptor), trailer tow power folding mirrors |
| 45 | 10A | Alternator sensor (3.5L, 3.7L, 5.0L engines) |
| 46 | 10A | Brake on/off (BOO) switch |
| 47 | 60A | Roll stability control / anti-lock brake system module |
| 48 | 20A | Moon roof |
| 49 | 30A | Wiper relay power |
| 50 | – | Not used |
| 51 | 40A | Blower motor relay power |
| 52 | 5A | Run/start: electronic power assist steering, blower relay coil |
| 53 | 5A | Run/start: PCM |
| 54 | 5A | Run/start: 4×4 module, back-up lamps, RSC/ABS, trailer tow battery charge relay coil, rear defroster relay coil, front camera washer relay coil (SVT Raptor) |
| 55 | – | Not used |
| 56 | 15A | Heated mirrors |
| 57-61 | – | Not used |
| 62 | Relay | Wiper motor relay |
| 63 | 25A | Electric fan relay power |
| 64 | – | Not used |
| 65 | 20A | Auxiliary power point, instrument panel |
| 66 | 20A | Auxiliary power point, inside center console |
| 67 | 20A | Trailer tow park lamps relay power |
| 68 | 25A | 4×4 module, 4×2 elocker module |
| 69 | 30A | Front heated or heated/cooled seats |
| 70 | – | Not used |
| 71 | 20A | Heated rear seats |
| 72 | 20A | Auxiliary power point, rear |
| 73 | 20A | Trailer tow stop/turn lamps relay power |
| 74 | 30A | Driver power seat, memory module |
| 75 | 15A / 25A | PCM voltage power 1 (25A on 3.5L engine) |
| 76 | 20A | PCM voltage power 2: mass air flow / intake air temp sensor (3.7L, 5.0L, 6.2L) or canister vent solenoid (3.5L) |
| 77 | 10A | PCM voltage power 3: emission related components, electric fan relay coil |
| 78 | 15A / 20A | PCM voltage power 4, ignition coils (20A on 6.2L engine) |
| 79 | 5A | Rain sensor |
| 80-84 | – | Not used |
| 85 | Relay | Electric fan relay, low speed |
Auxiliary relay box, SVT Raptor only, left rear corner of the engine
compartment: position 1 upfitter switch 1, position 2 upfitter switch 2,
position 3 upfitter switch 3, position 4 upfitter switch 4, position 5 front
camera washer relay, position 6 not used.
Which fuse is the cigar lighter and 12V power point?
On a 2013 F-150 the cigar lighter is fuse 22, rated 20A, in the power
distribution box under the hood. It is not in the cab panel, and this
position has not changed since 2009.
The other power points live in the same engine bay box: fuse 65, 20A for
the instrument panel point, fuse 66, 20A for the center console point,
fuse 72, 20A for the rear point, and fuse 33, 40A for the factory
110V household style outlet.
Ford does not publish a single combined “power point” fuse for this truck.
Each socket location has its own dedicated position, so a dead rear outlet
does not mean the front cigar lighter is affected, and the reverse is also
true.
Which fuse controls the radio?
Two fuses cover the audio system on this truck, both in the Smart Junction
Box.
- Fuse 29, 20A: radio. Main feed. Blow this and the head unit goes dark.
- Fuse 9, 10A: radio display, GPS module, electric finish panel module.
Screen and GPS specific. A dead screen with the radio otherwise powering
on points here first.
Fuse 19, 20A, feeds the audio amplifier separately. Sound cutting out while
the display stays lit points at fuse 19, not 29.
Which fuse controls the headlights, and why two of them didn’t exist last year?
Low beam runs through the cab panel: fuse 16, 10A, right side, and
fuse 17, 10A, left side. High beam is fuse 39, 15A, also cab panel.
HID headlamps, when equipped, run through the engine bay box instead:
fuse 16, 20A, passenger side, and fuse 35, 20A, driver side. On a
2009 through 2012 truck these two positions carry nothing. If your headlamp
harness diagram or a forum post from an earlier model year told you fuse 16
and 35 don’t exist in the power distribution box, that was true for that
year and is not true for 2013.
Sources disagree on the amp rating of fuse 16 in the engine bay box.
StartMyCar and fuse-box.info both list it at 20A, matching its twin circuit
at fuse 35. Ricks Free Auto Repair Advice lists the same position at 40A. Two
independent sources against one, and the matched pair at 20A each, is why
this article uses 20A. If a 20A cartridge fuse for this position keeps
blowing on your truck, check the box cover label before assuming the wiring
is at fault.
Which fuse controls the A/C, blower and heated seats?
Comfort circuits split across both boxes, so the symptom tells you which box
to open.
| Symptom | Check this | Box |
|---|---|---|
| Fan blows but never gets cold | Fuse 30, 10A, A/C clutch relay power, plus relay 23 | Engine bay |
| No air at any speed | Fuse 51, 40A, blower motor relay power, plus relay 3 | Engine bay |
| Climate controls dead | Fuse 46, 10A, climate controls module | Cab panel |
| Front heated seats not working | Fuse 69, 30A (engine bay power) | Engine bay |
| Rear heated seats not working | Fuse 33, 10A (cab panel switch circuit), fuse 71, 20A (engine bay power) | Both |
| Rear window defroster dead | Fuse 32, 40A, plus relay 4 | Engine bay |
The blower is the one people get wrong most. It is a 40A cartridge fuse in
the engine bay, not a mini fuse in the cab. If the fan works on high but
nothing else, the fuse is fine and the blower motor resistor is the more
likely part.
Heated seats split the other way from what most owners expect. The switch
and low-power circuit for the rear seats runs through the cab panel at fuse
33, but the actual seat element power for both rows comes from the engine
bay box. A blown fuse in either location kills the function, so check both
before replacing the seat module.
Which fuse stops the truck from starting?
Several positions can leave you turning the key with nothing happening.
- Relay 2, engine bay. Starter relay. No click at all points here first.
- Fuse 13, 30A, engine bay. Starter relay power.
- Relay 7 and fuse 31, 15A, engine bay. Run/start relay and its power
feed. - Relay 8 and fuse 27, 20A, engine bay. Fuel pump relay and its power
feed. Engine cranks but will not fire. - Fuse 18, 10A, cab panel. Brake shift interlock, PCM wakeup, PATS. If
the anti-theft light behaves oddly alongside a no-start, check this
circuit before assuming a key or module fault.
No crank at all points at the starter relay chain (2, 13, 7, 31). Cranks but
will not fire points at fuel delivery (8, 27) or ignition coil power (fuse
78).
How do you tell if a fuse is actually blown?
Pull it and look through the plastic window at the metal strip. An intact
fuse has an unbroken element. A blown one shows a visible gap, or the window
is smoked brown or black.
Three things catch people out on this truck:
- A hairline break looks intact. Hold the fuse to a light. If you are
not certain, test continuity with a
multimeter
set to ohms. Near zero means good. - Never guess the replacement rating. Match the number printed on the
fuse and cross-check the box cover label, especially at positions 16 and
35 where the correct rating depends on your exact model year. - The engine bay box mixes fuse types. Positions in the 11 to 22 range
and several higher positions are FMX/JCASE cartridge fuses that need a
puller, while the cab panel runs mini fuses throughout. A mixed
ATO/ATC fuse assortment
kit
costs less than one dealer fuse and usually includes the puller.
Why does the same fuse keep blowing?
A fuse that blows once is usually a surge. One that blows again within days
means the fault is upstream, and replacing it repeatedly treats the alarm
instead of the fire.
Work through it in this order:
- Unplug whatever you added most recently. Trailer wiring, a dash cam,
an aftermarket stereo, a charger left in a power point. Aftermarket
accessories cause most repeat blows on these trucks. - Check where the harness moves. Door jambs, the tailgate run, and
anything near the steering column flex thousands of times and chafe. - Look for water. A wet connector shorts intermittently, which is why
the fuse survives a dry week and dies in the rain.
Trailer tow circuits on this truck have their own habit worth knowing. Fuses
17, 21, 43, 67 and 73 all feed trailer relays, and a corroded seven-pin
connector is the usual culprit behind repeat blows there.
If a fuse blows the instant you seat it, there is a hard short. Stop
replacing fuses and trace the circuit. A Ford-capable scan
tool reads live data
instead of guessing, and if the OBD-II port itself will not link, check fuse
24 in the cab panel first, since it shares the circuit with the datalink
connector.
If the truck won’t start and the battery is the suspect rather than a fuse,
an OBD2 scanner built for
F-150s will tell
you whether the PCM is even seeing key-on power before you start pulling
fuses. A weak or aging battery is also worth ruling out early. Our battery
guide for the 2013 F-150
EcoBoost
covers the right group size and cold cranking amps for this exact truck.
2013 F-150 fuse quick reference
The positions owners look up most, in one place. C means the Smart Junction
Box (cab), E means the power distribution box (engine bay).
| What you want | Fuse | Amps | Box |
|---|---|---|---|
| Cigar lighter, front 12V outlet | 22 | 20A | E |
| Instrument panel power point | 65 | 20A | E |
| Center console power point | 66 | 20A | E |
| Rear power point | 72 | 20A | E |
| 110V household style outlet | 33 | 40A | E |
| Radio | 29 | 20A | C |
| Radio display, GPS | 9 | 10A | C |
| Horn | 22 | 20A | C |
| HID headlamp, passenger side | 16 | 20A | E |
| HID headlamp, driver side | 35 | 20A | E |
| Low beam, right (halogen) | 16 | 10A | C |
| Low beam, left (halogen) | 17 | 10A | C |
| High beam | 39 | 15A | C |
| Fuel pump relay power | 27 | 20A | E |
| Starter relay power | 13 | 30A | E |
| Fog lamps | 47 | 15A | C |
| Wipers | 49 | 30A | E |
| Blower motor | 51 | 40A | E |
| A/C clutch | 30 | 10A | E |
| Front heated seats | 69 | 30A | E |
| Rear heated seats | 33 / 71 | 10A / 20A | C / E |
| Power windows, front | 1 / 3 | 30A / 30A | C |
| Power windows, rear and moon roof | 48 | Breaker | C |
| Power door locks | 20 | 20A | C |
| Driver power seat, memory | 74 | 30A | E |
| Trailer brake control | 37 / 17 | 10A / 30A | C / E |
| Datalink connector (OBD-II) | 24 | 15A | C |
Our 2011 Ford F-150 fuse box
diagram covers
the same generation truck one renumbering earlier, where fuses 16 and 35 in
the engine bay box are not used at all. Our 2006 Ford F-150 fuse box
diagram covers
the previous generation truck, where the cigar lighter fuse and box layout
are both different again.
One Comment