Ford Mustang 2014 Fuse Replacement
Having an electrical issue? It could be a blown fuse — an easy fix you can do yourself.
Follow the steps below to find and replace the fuse:
Step 1: Find the Fuse Box
In your Ford Mustang 2014, the interior fuse box is typically located under the dashboard on the driver's side. Some vehicles also have an additional fuse box in the engine compartment. Check your owner's manual or the fuse box cover for the exact location.
Step 2: Identify the Corresponding Fuse
Below is the complete fuse list for your vehicle. Find the circuit that isn't working and note the fuse number and amperage.
Passenger compartment Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 1 | Driver rear window (convertible only) | 30 |
| 2 | Not used (spare) | 15 |
| 3 | SYNC® | 15 |
| 4 | Passenger rear window (convertible only) | 30 |
| 5 | Brake transmission shift interlock (BTSI) | 10 |
| 6 | Turn signals, Hazard flashers | 20 |
| 7 | Left low beam headlamp | 10 |
| 8 | Right low' beam headlamp | 10 |
| 9 | Courtesy lamps | 15 |
| 10 | Switch illumination | 15 |
| 11 | Security module | 10 |
| 12 | Power mirrors | 7.5 |
| 13 | Not used (spare) | 5 |
| 14 | Center information display, Electronic finish panel, GPS | 10 |
| 15 | Climate control | 10 |
| 16 | Not used (spare) | 15 |
| 17 | Power door locks, Trunk release | 20 |
| 18 | Not used (spare) | 20 |
| 19 | Navigation amp | 25 |
| 20 | Diagnostic connector | 15 |
| 21 | Fog lamps | 15 |
| 22 | Park lamps, License lamps | 15 |
| 23 | High beam headlamps | 15 |
| 24 | Horn | 20 |
| 25 | Demand lighting (battery saver) | 10 |
| 26 | Cluster (battery) | 10 |
| 27 | Ignition switch feed | 20 |
| 28 | Audio mute (start) | 5 |
| 29 | Camera (run/start) | 5 |
| 30 | Temperature sensor motor | 5 |
| 31 | Restraints control module (RCM) | 10 |
| 32 | Not used (spare) | 10 |
| 33 | Not used (spare) | 10 |
| 34 | Electronic stability control | 5 |
| 35 | Auxiliary body module (ABM) run/start | 10 |
| 36 | Passive anti-theft system (PATS) | 5 |
| 37 | Not used (spare) | 10 |
| 38 | Not used (spare) | 20 |
| 39 | Radio/Navigation | 20 |
| 40 | Not used (spare) | 20 |
| 41 | Accessoiy delay (windows, automatic dimming rear view mirror [including microphone and compass] and door switch in) | 15 |
| 42 | Not used (spare) | 10 |
| 43 | Heated seat relay coils | 10 |
| 44 | Not used (spare) | 10 |
| 45 | Wiper relay and module, Blower relay | 5 |
| 46 | Passenger airbag deactivation indicator (PADI), Occupant classification sensor (OCS) | 7.5 |
| 47 | Not used (spare) | 30 |
| 48 | Accessoiy delay relay (windows, automatic dimming rear view mirror [including microphone and compass] and door switch III) |
Power distribution box Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 1 | Passenger compartment fuse panel | 80 |
| 2 | Not used | |
| 3 | Not used | |
| 4 | Blower motor relay | 30 |
| 5 | PowerPoint (body) | 20 |
| 6 | Rear defroster | 40 |
| 7 | Cooling fan relay | 40 |
| 8 | Anti-lock brake system (ABS) pump | 40 |
| 9 | Wipers | 30 |
| 10 | ABS valve | 30 |
| 11 | Not used | |
| 12 | Not used | |
| 13 | Fuel pump relay (non-Shelby) | 15 |
| 13 | Fuel pump relay (Shelby only) | 25 |
| 14 | Not used | |
| 15 | Intercooler pump relay (Shelby only) | 10 |
| 16 | Heated seats | 20 |
| 17 | Alternator sense | 10 |
| 18 | Auxiliary body module (ABM) | 20 |
| 19 | Starter relay | 30 |
| 20 | Rear amplifier (Shaker 1000 radio) | 30 |
| 21 | Powertrain relay | 30 |
| 22 | PowerPoint (instrument panel) | 20 |
| 23 | Powertrain control module (PCM) keep-alive power | 10 |
| 24 | Brake on/off (BOO) power | 10 |
| 25 | A/C compressor relay | 10 |
| 26 | Left high intensity discharge headlamp relay | 20 |
| 27 | Right high intensity discharge headlamp relay | 20 |
| 28 | Not used | |
| 29 | Passenger front window | 30 |
| 30 | Not used | |
| 31 | Passenger power seat | 30 |
| 32 | Driver power seat | 30 |
| 33 | Front amplifier (Shaker 500 radio) | 30 |
| 34 | Driver front window motor | 30 |
| 35 | Convertible top motor | 40 |
| 36 | Fuel diode | |
| 37 | Not used | |
| 38 | Fuel injectors (Shelby only) | 15 |
| 39 | Rear defroster coil (run/start) | 5 |
| 40 | PCM vehicle power 4 - ignition coil | 15 |
| 41 | Fuel pump relay | |
| 42 | Intercooler pump relay (Shelby only) | |
| 43 | A/C compressor relay | |
| 44 | Not used (spare) | |
| 45 | PCM run/start | 5 |
| 46 | PCM vehicle power 3 - general powertrain components | 5 |
| 47 | PCM vehicle power 1 | 15 |
| 48 | Mass air flow sensor | 15 |
| 49 | PCM vehicle power 2 - emissions related powertrain components | 15 |
| 50 | Cooling fan relay (high) | |
| 51 | Blower motor relay | |
| 52 | Starter relay | |
| 53 | Rear defroster relay | |
| 54 | Front wiper relay | |
| 55 | Cooling fan relay (low) | |
| 56 | Fuel pump sensor (Shelby only) | |
| 57 | PCM relay | |
| 58 | Not used (Spare) |
Step 3: Check the Fuse
Use the plastic fuse puller, typically found in the fuse box, to remove the fuse. Hold it up to a light source. If the metal filament inside is broken or charred, the fuse is bad and needs to be replaced.
Step 4: How to Get a Replacement
You can buy a replacement fuse at any auto parts store. Make sure you match the **amperage (A)** and **physical size** of the fuse exactly. For example, if you need a 20A fuse, get a 20A fuse.
Step 5: Replace the Fuse
Gently press the new fuse into the empty slot. You should feel a slight click when it's securely in place. Test the affected circuit to confirm it's working again.
What Now?
Fuse Was Blown — What to Buy
Ask at any auto parts store (AutoZone, O'Reilly, Advance Auto) for a blade fuse with the same amperage printed on the old one (e.g., 10A, 15A, 20A). Also match the physical size — mini (most modern cars), standard, or maxi. Replacement fuses cost under $5 and most stores sell assorted packs.
Fuse Looks Fine — Other Causes
If the fuse is intact, the problem isn't a blown fuse. Common alternatives include a bad relay (a click-sized electrical switch), a faulty wiring connection, or a failed component (motor, switch, module). At this point, a mechanic's diagnostic is the most reliable next step.
Frequently Asked Questions
What happens if I put in the wrong amperage fuse?
Higher amperage fuses won't protect the circuit and can cause wiring damage or fire. Lower amperage fuses will blow again immediately. Always match the exact amperage.
Why does my fuse keep blowing?
A repeatedly blown fuse indicates an underlying short circuit or overload. Replacing it again won't fix the root cause — consult a mechanic.
Do I need any tools?
Most cars come with a plastic fuse puller in the fuse box lid. If not, fine-tip needle-nose pliers work. A small flashlight helps.
How do I know what size fuse to buy?
Match the amperage printed on the old fuse (e.g., 10A, 15A, 20A) and the physical blade size (mini, standard, maxi). Auto parts stores carry assorted packs.