Ford E-450 2008 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located below and to the left of the steering wheel by the brake pedal.
Engine compartment fuse box location:
The power distribution box is located in the engine compartment.
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | - | Not used |
| 2 | 10A | Remote Keyless Entry (RKE), O/D cancel, IVD module, 4W ABS |
| 3 | 15A | Delayed accessory overhead console, Audio |
| 4 | 15A | Courtesy lamps |
| 5 | 30A | Power locks without RKE or sliding door |
| 6 | 10A | Daytime Running Lamps (DRL) module |
| 7 | 10A | Multi-Function Switch, Turn Signals |
| 8 | 15A | Radio capacitor(s), Ignition coils, PCM (Powertrain Control Module) relay |
| 9 | 5A | Wiper Control Module |
| 10 | 20A | Main light switch, Park lamps, License lamp (external lamps), Multi-function switch (flash-to-pass), BSM |
| 11 | 15A | Multi-function switch (hazards), Brake lamps, IVD relay |
| 12 | 15A | Back-up lamps, Auxiliary battery relay (gasoline engine only) |
| 13 | 15A | Blend door actuator, A/C mode |
| 14 | 5A | Instrument Cluster |
| 15 | 5A | Trailer battery charge relay, Cluster, BSM |
| 16 | 30A | Power seats |
| 17 | 5A | Power mirrors |
| 18 | - | Not used |
| 19 | - | Not used |
| 20 | 10A | Restraints |
| 21 | - | Not used |
| 22 | 15A | Audio, Instrument cluster, Courtesy lamp relay, Accessory delay relay |
| 23 | 20A | Power locks w/RKE or sliding door |
| 24 | - | Not used |
| 25 | 10A | Left headlamp (low beam) |
| 26 | 20A | Cigar lighter |
| 27 | 5A | Audio |
| 28 | - | Not used |
| 29 | 10A | Diagnostics |
| 30 | 15A | Headlamps (high beam indicator), DRL |
| 31 | 10A | Right headlamp (low beam) |
| 32 | 20A | Power point #1 (instrument panel) |
| 33 | 10A | Start relay |
| 34 | - | Not used |
| 35 | - | Not used |
| 36 | 5A | Instrument illumination |
| 37 | - | Not used |
| 38 | 10A | Brake Shift Interlock |
| 39 | 10A | Trailer tow electric brake, Center High-Mounted Stop Lamp (CHMSL) |
| 40 | 20A | Power point (body B-pillar) |
| 41 | 30A | Modified Vehicle |
| 42 | 20A | Power windows |
| 43 | - | Not used |
| 44 | 20A | Wiper/washer |
Instrument panel relay module:
| Relay N° | Rating | Functions |
| 1 | - | Interior lamps |
| 2 | - | Open |
| 3 | - | Open |
| 4 | - | Battery saver |
The instrument panel relay module is located behind the radio in the center of the instrument panel.
Engine compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | - | Powertrain Control Module (PCM) diode |
| 2 | - | Auxiliary battery diode |
| 3 | 10A | Daytime Running Lamps (DRL) module, A/C clutch |
| 4 | 5A | Heated PCV (4.6L and 6.8L engines) |
| 5 | 15A | Horn relay |
| 6 | 20A | PCM - fuel injectors |
| 7 | 60A | Ignition switch, Delayed accessory delay |
| 8 | 40A | Trailer battery charge relay |
| 9 | 50A | Modified vehicle power |
| 10 | 30A | Trailer tow electric brake controller |
| 11 |
60A 40A |
4-Wheel Anti-lock Brake System (4WABS) AdvanceTrac with RSC |
| 12 | 60A | I/P fuses 29, 34, 35, 40 and 41 |
| 13 | 20A | Fuel pump relay |
| 14 | 50A | Auxiliary blower relay |
| 15 | 40A | Main light switch |
| 16 | 40A | ABS/IVD |
| 17 | 50A | Blower motor relay (blower motor) |
| 18 | 60A | Engine compartment fuses 3, 5 and 26, 23 (diesel) Instrument panel fuses 26 and 32, PCM start relay |
| 19 | 50A | IDM relay (diesel engine only) |
| 20 | 60A | Auxiliary battery relay (gasoline engine only), PDB fuses 8 and 24 |
| 21 | 30A | PCM power relay, PDB fuse 27 |
| 22 | 60A | I/P fuses 4, 5, 10, 11, 16, 17, 22 and 23, Circuit breaker 44 |
| 23 |
10A 20A |
Alternator field (diesel engine only) PCM, VMV, HEGO, MAF, EGR, (gasoline engine only) |
| 24 | 20A | Trailer tow running lamps and back up lamp relays |
| 25 | - | Not used |
| 26 | 20A | Trailer tow turn signals |
| 27 | 10A | PCM KAPWR, Canister vent (gasoline engine only) |
| 28 | - | Not used |
| A | - | Fuel pump relay |
| B | - | Horn relay |
| C | - | Trailer back-up lamps relay |
| D | - | Trailer running lamps relay |
| E | - | Trailer battery charge relay |
| F | - | IDM relay (diesel only), IVD (gasoline only) |
| G | - | PCM Relay |
| H | - | Blower motor relay |
| J | - | Accessory delay relay |
| K | - | Start relay |
Engine compartment relay module:
| Relay N° | Rating | Functions |
| 1 | - | PCM back-up lamp |
| 2 | - | A/C control |
| 3 | - | Trailer tow right turn |
| 4 | - | Trailer tow left turn |
The engine compartment relay module is located in one of two places depending on which type of engine your vehicle is equipped with:
- Gasoline engine: driver side of the engine compartment above the brake master cylinder.
- Diesel engine: passenger side of the engine compartment behind the power distribution box.
