Jonathan Yarden Mar 25, 2021 · 5 min. read
In this article you will find a description of fuses and relays Ford,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2003
Passenger compartment fuse panel
The fuse panel is located below and to the left of the steering wheel by the brake pedal.
| Fuse/relay location | Ampere rating [A] | Usage |
| 1 | 20 | Horn |
| 2 | 15 | Turn/Hazard lamps |
| 3 | 20 | Cigar lighter |
| 4 | 10 | Diagnostic connectors |
| 5 | 15 | Back-up lamps, Daytime Running Lamps (DRL) relays, Blend door actuator, Heated seat module (SuperCrewzer only) On/OFF fan clutch (SuperCrewzer only), Warning chime module (SuperCrewzer and Ambulance) |
| 6 | — | — |
| 7 | — | — |
| 8 | 5 | Radio, GEM |
| 9 | 5 | Switch Illumination (headlamp, power windows, power door locks), Power window relay, Trailer hook-up lamps (SuperCrewzer only) |
| 10 | — | — |
| 11 | 30 | Wiper motor, Washer pump relay |
| 12 | 10 | Stoplamp switch (hydraulic brake vehicle only) |
| 13 | 20 | Radio, Cluster, 7.3L Power Stroke Powertrain Control Module (PCM), Keep Alive Memory |
| 14 | 10 | Interior lamps, Running board lamps (SuperCrewzer only) |
| 15 | 10 | GEM, Interior lamp relay, Map lamps, Glove box lamps (SuperCrewzer only), Power mirrors (SuperCrewzer only), Warning chime module (SuperCrewzer only) |
| 16 | 15 | Headlamps |
| 17 | — | — |
| 18 | 5 | Headlamp switch, GEM |
| 19 | 15 | Engine, Cluster, Cummins PCM, CAT PCM 7.3L Power Stroke PCM (idle valid switch input), Alternator (Ambulance only) |
| 20 | 15 | Starter relay, GEM |
| 21 | 10 | DRL |
| 22 | 15 | Exhaust brake (SuperCrewzer only), Heated mirrors (SuperCrewzer only), Rear air suspension (SuperCrewzer and Ambulance) |
| 23 | 10 | Electronic flasher |
| 24 | 15 | Vacuum pump, Air dryer, ABS, Fuel heater relay |
| 25 | 10 | Blower motor relay |
| 26 | 10 | Right-hand low beam headlamp |
| 27 | — | — |
| 28 | 10 | Left-hand low beam headlamp |
| 29 | 10 | Cluster, GEM, 7.3L Power Stroke PCM (clutch switch input), APCM (7.3L Power Stroke only), Overhead console (SuperCrewzer only), Keyless entry module (SuperCrewzer only), Traxx (Fuel) module (SuperCrewzer only) |
| 30 | 30 | 7.3L Power Stroke PCM diode, 7.3L Power Stroke fuel heater |
| 31 | 15 | Allison MD Transmission Neutral start relay and PCM (7.3L Power Stroke only) |
| Relay 1 | — | Interior lamps |
| Relay 2 | — | — |
| Relay 3 | — | Horn |
| Relay 4 | — | One touch down power window |
| Relay 5 | — | — |
Power distribution box
The power distribution box is located in the engine compartment.
| Fuse/relay location | Ampere rating [A] | Usage |
| 1 | 15* | Park lamps, Roof lamps |
| 2 | 25* | Cummins Powertrain Control module (PCM) |
| 15* | Foglamps (SuperCrewzer only) | |
| 3 | 10* | Generator |
| 4 | 15* | Water pump |
| 5 | 15* | CAT air intake heater relay, Cummins PCM |
| 6 | 20* | CAT PCM, Cummins PCM |
| 7 | 15* | Stop lamps |
| 8 | 25* | CAT fuel heater |
| 9 | 30* | Trailer hook-up lamps (SuperCrewzer only) |
| 10 | 15* | Shift modulator (Allison AT transmission only) (expect for F-650 SuperCrewzer and Catepillar/Cummins) |
| 11 | 20* | Allision MD transmission, Allision 2000/2400 transmission |
| 12 | 10* | Keyless entry module (SuperCrewzer only) |
| 13 | 10* | Park brake adjustment module (SuperCrewzer only) |
| 14 | — | — |
| 15 | 7,5* | Body builder perp (hydraulic brake vehicle only) |
| 16 | 10* | Allision 2000/2400 transmission (expect F650 SuperCrewzer) |
| 17 | 5* | Radio (SuperCrewzer only) |
| 18 | — | — |
| 19 | — | — |
| 20 | — | — |
| 21 | 10* | GEM (hydraulic brake vehicle only) |
| 22 | — | — |
| 23 | — | — |
| 24 | — | — |
| 101 | 40** | Anit-lock Brake System (ABS) (air brake vehicle only) |
| 102 | 20** | Body builder prep run fed |
| 103 | 50** | Ignition switch (Junction box fuses 8, 9, 11, 19, 20, 22, 23, 24, 25, 29, 30, 31) |
| 104 | 20** | Power point |
| 105 | 20** | Power door loscks |
| 106 | 30** | Headlamps |
| 107 | 50** | Junction box battery feed (fuses 1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40** | Cummins fuel heater |
| 109 | 40** | Power windows |
| 110 | 30** | Power seats (SuperCrewzer only) |
| 111 | 30** | Body builder prep |
| 112 | 40* | Blower motor |
| 113 | 30** | Heated seats (SuperCrewzer only) |
| 114 | 30** | E-brake (SuperCrewzer only) |
| 115 | 40** | Ignition switch (Junction box fuses 5, 8, 9, 11, 21) |
| 116 | 30** | Body builder prep |
| 117 | 20** | 7.3L Power Stroke PCM |
| 118 | 30** | IDM (7.3L Power Stroke only) |
| 119 | 60** | Hydraulic ABS, Air brake trailer tow fuse block |
| 120 | ||
| 121 | 60** | Hydromax motor, Air brake trailer tow fuse block |
| 122 | ||
| 201 | — | Washer pump relay |
| 202 | — | Wiper speed relay |
| 203 | — | Wiper run/park relay |
| 204 | — | 7.3L Power Stroke neutral start relay, Stoplamp relay (CATR and Cummins only) |
| 205 | — | Right-hand stop/turn relay |
| 206 | — | Left-hand stop/turn relay |
| 207 | — | Shift modulator relayu (CAT and Power Stroke only), Cummins VP-44 Relay, A/C high-pressure relay (SuperCrewzer only) |
| 208 | — | Back-up lamps relay |
| 209 | — | Stop lamps relay, Foglamps relay (SuperCrewzer only) |
| 301 | — | Fuel heater relay (CAT and Cummins only)/7.3L Power Stroke PCM relay) |
| 302 | — | Parki lamps relay |
| 303 | — | Blower motor relay |
| 304 | — | Air ABS relay |
| 401 | — | — |
| 501 | — | — |
| 502 | — | — |
| 503 | Diode | 7.3L Power Stroke PCM diode |
| * Mini Fuses
** Maxi Fuses |
||
Relays
The relay box is located on the rear crossmember.
Air Brake Trailer Tow Relays (if equipped)
| Fuse/relay location | Ampere rating [A] | Usage |
| 1 | 30** | Trailer Tow Run Feed |
| 2 | 30** | Trailer Tow Park/Marker Lamps |
| 3 | 30** | Trailer Tow Stop Lamps |
| 4 | 30** | Trailer Tow Turn/Stop Lamps |
| 5 | — | — |
| R1 | — | Trailer Tow Run Relay |
| R2 | — | Trailer Tow Stop Lamp relay |
| R3 | — | Trailer Tow Park/Marker Lamp Relay |
| R4 | — | Trailer Tow Park/Marker Lamp Relay |
| R5 | — | — |
| R6 | — | — |
| R7 | — | Trailer Tow Left Turn/Stop Lamp Relay |
| R8 | — | Trailer Tow Right Turn/Stop Lamp Relay |
| ** Maxi Fuse | ||
SuperCrewzer (if equipped)
| Fuse/relay location | Ampere rating [A] | Usage |
| 1 | — | — |
| 2 | — | — |
| 3 | — | — |
| 4 | — | — |
| 5 | — | — |
| R1 | — | Trailer Hookup Lamps Relay |
| R2 | — | Exhaust Brake Relay |
| R3 | — | Exhaust Brake Relay |
| R4 | — | — |
| R5 | — | — |
| R6 | — | — |
| R7 | — | — |
| R8 | — | — |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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