Ford E-350 2003 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 | 20A | 4WABS Module |
| 2 | 15A | Brake Warning Lamp, Instrument Cluster, Warning Chime, 4WABS Relay, Warning Indicators, Low Vacuum Warning Switch (Diesel Only) |
| 3 | 15A | Main light switch, RKE module, Radio, Instrument illumination, VCP and video screens, Overhead console |
| 4 | 15A | Power Locks w/RKE, Illuminated Entry, Warning Chime, Modified Vehicle, Main Light Switch, Courtesy Lamps |
| 5 | 20A | RKE Module, Power Lock Switches, Memory Lock, Power Locks with RKE |
| 6 | 10A | Brake Shift Interlock, Speed Control, DRL Module |
| 7 | 10A | Multi-Function Switch, Turn Signals |
| 8 | 30A | Radio capacitor(s), Ignition coil, PCM diode, PCM power relay, Fuel heater (Diesel only), Glow plug relay (Diesel only) |
| 9 | 30A | Wiper Control Module, Windshield Wiper Motor |
| 10 | 20A | Main Light Switch, Park Lamps, License Lamp,(External Lamps) Multi-Function Switch (Flash-to-pass) |
| 11 | 15A | Brake Pressure Switch, Multi-Function Switch (Hazards), Brake Lamp Switch, Brake Lamps |
| 12 | 15A | Transmission Range (TR) Sensor, Backup Lamps, Auxiliary Battery Relay |
| 13 | 15A | Blend Door Actuator, A/C Heater, Function Selector Switch |
| 14 | 5A | Instrument Cluster (Air Bag and Charge Indicator) |
| 15 | 5A | Trailer Battery Charge Relay |
| 16 | 30A | Power seats |
| 17 | - | Not used |
| 18 | - | Not used |
| 19 | 10A | Air Bag Diagnostic Monitor |
| 20 | 5A | Overdrive Cancel Switch |
| 21 | 30A | Power Windows |
| 22 | 15A | Memory power radio, Rear seat control unit, Video screen |
| 23 | 20A | Cigar Lighter, Data Link Connector (DLC) |
| 24 | - | Not used |
| 25 | 10A | Left Headlamp (Low Beam) |
| 26 | - | Not used |
| 27 | 5A | Radio |
| 28 | 25A | Power Plug |
| 29 | - | Not used |
| 30 | 15A | Headlamps (High Beam Indicator), DRL10A |
| 31 | 10A | Right Headlamp (Low Beam), DRL |
| 32 | 5A | Power Mirrors |
| 33 | 20A | Power Point #2 |
| 34 | 10A | Transmission Range (TR) Sensor |
| 35 | 30A | RKE Module |
| 36 | 5A | (Cluster, A/C, Illumination, Radio), Steering Column Assembly |
| 37 | 20A | Rear power point |
| 38 | 10A | Air Bag Diagnostic Monitor |
| 39 | 20A | Power Point #1 |
| 40 | 30A | Modified Vehicle |
| 41 | 30A | Modified Vehicle |
| 42 | - | Not used |
| 43 | 20A | Power Windows |
| 44 | - | Not used |
Engine compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | - | Not Used |
| 2 | - | Not used |
| 3 | - | Not used |
| 4 | 10A | Powertrain Control Module (PCM) Keep Alive Memory, Instrument cluster, Voltmeter |
| 5 | 10A | Right Trailer Turn Signal |
| 6 | 10A | Left Trailer Turn Signal |
| 7 | 20A | Clearance lamps |
| 8 | 60A | I/P fuses 4, 5, 10, 11, 16, 22, 23, 28, 32, 38 |
| 9 | 30A | PCM Power Relay, Engine Compartment Fuse 4 |
| 10 | 60A | Auxiliary Battery Relay, Engine Compartment Fuses 14, 22 |
| 11 | 30A | IDM Relay (Diesel Only) |
| 12 | 60A | Engine Compartment Fuses 25, 27 |
| 13 | 50A | Blower Motor Relay (Blower Motor) |
| 14 | 30A | Trailer Running Lamps Relay, Trailer Backup Lamps Relay |
| 15 | 40A | Main Light Switch, Daytime Running Lights (DRL) |
| 16 | 50A | Auxiliary Blower Motor Relay |
| 17 | 30A | Fuel Pump Relay |
| 18 | 60A | I/P fuses 33, 37, 39, 40, 41 |
| 19 | 60A | 4WABS Module |
| 20 | 20A | Electric Brake Controller |
| 21 | 50A | Modified Vehicle Power |
| 22 | 40A | Trailer Battery Charge Relay, Modified Vehicles |
| 23 | 60A | Ignition Switch, Fuse Panel |
| 24 | 20A | Natural Gas Tank Valves (NGV only) |
| 25 | 20A | NGV Module (Natural Gas Only) |
| 26 | 10A | A/C Clutch (4.2L Only) |
| 27 | 15A | DRL Module, Horn Relay |
| 28 | - | PCM Diode |
| 29 | - | Not used |
| A | - | Marker lamps relay |
| B | - | Stop Lamp Relay |
| C | - | Trailer Backup Lamps Relay |
| D | - | Trailer Running Lamps Relay |
| E | - | Trailer Battery Charge Relay |
| F | - | IDM Relay (Diesel Only), A/C Clutch Relay (4.2L Only) |
| G | - | PCM Relay |
| H | - | Blower Motor Relay |
| J | - | Horn Relay |
| K | - | Fuel Pump Relay |
