Learn about Ford F-650 / F-750 (2000-2010) fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.
The Ford F-650 and F-750 are medium-duty trucks built for heavy-duty commercial use, from box trucks to dump trucks and everything in between. Because these trucks are often outfitted with specialized bodies and equipment, their electrical systems include additional fuses and relays beyond what you’d find in a standard pickup truck.
Fuses and relays protect your F-650/F-750’s electrical circuits from overloads and short circuits, whether it’s powering the headlights, dashboard gauges, or auxiliary equipment installed by an upfitter. Given the commercial nature of these trucks, electrical issues can directly impact your ability to work, making it essential to know where to look when something stops functioning properly.
This guide covers the fuse box and relay locations for the 2000–2010 Ford F-650 and F-750, along with safe access tips and guidance on identifying the right fuse or relay for your issue.
MUST READ: DYI – How to Check Car Fuses?
(2000-2010) Ford F-650 / F-750 fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Ford F-650 / F-750 (2000-2010) fuse assignment
Ford F-650 / F-750 Year of production: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Where Are the Fuse Boxes Located on the Ford F-650/F-750?
These medium-duty trucks typically include two main fuse box locations; one in the engine compartment and one inside the cab along with the possibility of additional relay panels depending on body configuration and installed equipment.
1. Engine Compartment Fuse Box (Power Distribution Box)
The primary fuse box is located in the engine bay, generally mounted near the battery or firewall, depending on cab configuration (conventional cab vs. low-cab-forward).
How to access it:
- Open the hood or tilt the cab, depending on your truck’s configuration, to access the engine compartment.
- Locate the black plastic cover near the battery or firewall area.
- Unclip or unscrew the retaining tabs to remove the cover and expose the fuses and relays inside.
This box typically protects high-amperage systems such as the starter circuit, headlights, engine cooling fan, and glow plug relay (on diesel-equipped models).
2. Interior Fuse Panel (Cab Fuse Box)
The interior fuse box is located inside the cab, usually under the dashboard on the driver’s side or occasionally to the left of the steering column, similar to Ford’s lighter-duty trucks.
How to access it:
- Locate the access panel under the dash near the driver’s kick panel.
- Remove the cover, which may be secured with clips, screws, or a combination of both depending on trim and cab type.
- Once removed, you’ll see the fuse block along with a small number of interior relays.
This panel controls circuits such as interior lighting, radio, wipers, gauge cluster, power windows (if equipped), and heater/AC blower motor.
3. Auxiliary Relay and Fuse Panels (Upfitter Equipment)
Because F-650 and F-750 trucks are frequently outfitted with specialized bodies, box trucks, flatbeds, dump beds, or bucket trucks, many have additional relay and fuse panels installed by upfitters to power auxiliary equipment like beacon lights, hydraulic pumps, or PTO (power take-off) systems.
Common locations for auxiliary panels:
- Behind the seat or in a storage compartment inside the cab.
- Mounted on the frame rail near the rear of the cab.
- Inside specialized control panels installed by the body manufacturer.
Since these auxiliary systems vary widely by application, check with your upfitter’s documentation or inspect the cab and frame area for additional labeled panels if you’re troubleshooting equipment beyond standard truck functions.
4. Chassis-Mounted Relays
Given the heavier-duty nature of these trucks, some relays, particularly those related to the transmission, air brake system components, or PTO engagement, may be mounted directly on the frame rail rather than inside a centralized box.
How to access them:
- Inspect along the frame rail near the transmission or rear of the cab.
- These relays are typically housed in weatherproof connectors and may require a wiring diagram to identify correctly, since they aren’t grouped with the main fuse boxes.
How to Identify the Right Fuse or Relay
Both the engine bay and interior fuse boxes include a printed diagram, usually located on the inside of the fuse box cover, listing each fuse and relay by number, amperage rating, and function.
When troubleshooting:
- Locate the malfunctioning component on the printed diagram and match it to the corresponding fuse or relay slot.
- Confirm the amperage rating before replacing any fuse to avoid circuit damage.
- For auxiliary equipment relays installed by an upfitter, refer to the equipment manufacturer’s wiring documentation, since these aren’t always included on Ford’s standard fuse diagram.
Safety Precautions Before Checking Fuses or Relays
- Turn off the ignition and remove the key before accessing any fuse or relay.
- For more extensive electrical work, disconnect the negative battery terminal, particularly important on trucks with dual batteries common in this weight class.
- Use a fuse puller tool rather than metal tools to avoid sparking or damaging the fuse socket.
- Never replace a fuse with one rated higher than specified, as this can lead to wiring damage or fire risk.
- If a new fuse blows immediately, stop and inspect the circuit for a short rather than continuing to swap fuses.
- When working near PTO systems, hydraulic equipment, or auxiliary electrical panels, make sure all equipment is fully disengaged and the parking brake is set before inspecting related relays.
Checking and Replacing Fuses in Ford F-650 / F-750
If electrical components in the vehicle are not working, a fuse may have blown. Blown fuses are identified by a broken wire within the fuse. Check the appropriate fuses before replacing any electrical components. To remove a fuse use the fuse puller tool provided on the fuse panel cover.
Location of Fuse Boxes
Passenger Compartment Fuse Panel:
The fuse panel is located below and to the left of the steering wheel by the brake pedal. Remove the panel cover to access the fuses.
Power Distribution Box:
The power distribution box is located in the engine compartment. The power distribution box contains high-current fuses that protect your vehicle’s main electrical systems from overloads.
Relays (2000-2008):
The relay box is located on the rear crossmember.
Fuse Box Diagrams
2000
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2000)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Turn/Hazard Lamps |
| 3 | 20A | Cigar Lighter |
| 4 | 10A | Diagnostic Connectors |
| 5 | 15A | Back-Up Lamps, DRL Relays, Blend Door Actuator |
| 6 | – | Not Used |
| 7 | – | Not Used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Switch Illumination (Headlamp, Power Windows, Power Door Locks), Power Window Relay |
| 10 | – | Not Used |
| 11 | 30A | Wiper Motor, Washer Pump Relay |
| 12 | 10A | Stoplamp Switch (Hydraulic Vehicles Only) |
| 13 | 20A | Radio, Cluster, 7.3L Power Stroke Powertrain Control Module (PCM), Keep Alive Memory |
| 14 | 10A | Interior Lamps |
| 15 | 10A | GEM, Interior Lamp Relay |
| 16 | 15A | Highbeams |
| 17 | – | Not Used |
| 18 | 5A | Headlamp switch, GEM |
| 19 | 15A | Engine, Cluster, Cummins PC M, CAT PCM, 7.3L Power Stroke PCM (Idle Valid Switch Input) |
| 20 | 15A | Starter Relay, GEM |
| 21 | 10A | Daytime Running Lamps (DRL) |
| 22 | 15A | Not Used (Spare) |
| 23 | 10A | Electronic Flasher |
| 24 | 15A | Vacuum Pump, Air Dryer, ABS, Fuel Heater Relay |
| 25 | 10A | Blower Motor Relay |
| 26 | 10A | Right Low Beam Headlamp |
| 27 | – | Not Used |
| 28 | 10A | Left Low Beam Headlamp |
| 29 | 10A | Cluster, GEM, 7.3L Power Stroke PCM (clutch switch input), APCM (7.3L Power Stroke only) |
| 30 | 30A | 7.3L Power Stroke PCM Diode, 7.3L Power Stroke Fuel Heater |
| 31 | 15A | Allison MD Transmission, Neutral Start Relay and PCM (7.3L Power Stroke only) |
| Relay 1 | – | Interior Lamps |
| Relay 2 | – | Not Used |
| Relay 3 | – | Horn |
| Relay 4 | – | One Touch Down |
| Relay 5 | – | Not Used |
Power Distribution Box
List of fuses in the power distribution box (2000)
| № | A | Description |
|---|---|---|
| 1 | 15A* | Park Lamps, Roof Lamps |
| 2 | 25A* | Cummins Powertrain Control Module (PCM) |
| 3 | 10A* | Generator |
| 4 | 15A* | Washer Pump |
| 5 | 15A* | Air Intake Heater Relay (CAT), Cummins PCM |
| 6 | 20A* | CAT PCM, Cummins PCM |
| 7 | 15A* | Stop Lamps |
| 8 | 25A* | C AT Fuel Heater |
| 9 | – | Not Used |
| 10 | 15A* | Shift Modulator (Allison AT trans only) |
| 11 | 20A* | Allison MD Trans |
| 12 | – | Not Used |
| 13 | – | Not Used |
| 14 | – | Not Used |
| 15 | 7.5A* | Body Builder Prep (Hydraulic Vehicles Only) |
| 16 | – | Not Used |
| 17 | – | Not Used |
| 18 | – | Not Used |
| 19 | – | Not Used |
| 20 | – | Not Used |
| 21 | 10A* | GEM (Hydraulic Vehicles Only) |
| 22 | – | Not Used |
| 23 | – | Not Used |
| 24 | – | Not Used |
| 101 | 40A** | ABS (Air Only) |
| 102 | 20A** | Body Builder Prep Run Feed |
| 103 | 50A** | Ignition Switch (JB fuses 8, 9, 11, 19, 20, 22, 23, 24, 25, 29, 30, 31) |
| 104 | 20A** | Power Point |
| 105 | 20A** | Power Door Locks |
| 106 | 30A** | Headlamps |
| 107 | 50A** | Junction Box Battery Feed (fuses 1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40A** | Cummins Fuel Heater |
| 109 | 40A** | Power Windows |
| 110 | – | Not Used |
| 111 | 30A** | Body Builder Prep |
| 112 | 40A** | Blower Motor |
| 113 | – | Not Used |
| 114 | – | Not Used |
| 115 | 40A** | Ignition Switch (JB fuses 5, 8, 9, 11, 21) |
| 116 | 30A** | Body Builder Prep |
| 117 | 20A** | 7.3L Power Stroke PCM |
| 118 | 30A** | IDM (7.3L Power Stroke only) |
| 119-120 | 60A** | Hydraulic ABS |
| 121-122 | 60A** | Hydromax Motor |
| 201 | – | Washer Pump Relay |
| 202 | – | Wiper Speed Relay |
| 203 | – | Wiper Run/Park Relay |
| 204 | – | Cummins VP44 Relay/7.3L Power Stroke Neutral Start Relay |
| 205 | – | Right Hand Stop/Turn Relay |
| 206 | – | Left Hand Stop/Turn Relay |
| 207 | – | Shift Modulator Relay |
| 208 | – | Backup Lamps Relay |
| 209 | – | Stop Lamps Relay |
| 301 | – | Fuel Heater Relay (CAT and Cummins only)/7.3L Power Stroke PCM Relay |
| 302 | – | Park Lamps Relay |
| 303 | – | Blower Motor Relay |
| 304 | – | Air ABS Relay |
| 401 | – | Not Used |
| 501 | – | Not Used |
| 502 | – | Not Used |
| 503 | Diode | 7.3L Power Stroke PCM Diode |
| * Mini Fuses ** Maxi Fuses | ||
2001
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2001)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Turn/Hazard Lamps |
| 3 | 20A | Cigar Lighter |
| 4 | 10A | Diagnostic Connectors |
| 5 | 15A | Back-Up Lamps, DRL Relays, Blend Door Actuator, Heated Seat Module (SuperCrewzer only), On/Off Fan Clutch (SuperCrewzer only), Warning Chime Module (SuperCrewzer only) |
| 6 | – | Not Used |
| 7 | – | Not Used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Switch Illumination (Headlamp, Power Windows, Power Door Locks), Power Window Relay, Trailer Hook Up Lamps (SuperCrewzer only) |
| 10 | – | Not Used |
| 11 | 30A | Wiper Motor, Washer Pump Relay |
| 12 | 10A | Stoplamp Switch (Hydraulic Vehicles Only) |
| 13 | 20A | Radio, Cluster, 7.3L Power Stroke Powertrain Control Module (PCM), Keep Alive Memory |
| 14 | 10A | Interior Lamps, Runningboard lamps (SuperCrewzer only) |
| 15 | 10A | GEM, Interior Lamp Relay, Map Lamps, Glove Box Lamps (SuperCrewzer only), Power Mirrors (SuperCrewzer only), Warning Chime Module (SuperCrewzer only) |
| 16 | 15A | Highbeams |
| 17 | – | Not Used |
| 18 | 5A | Headlamp switch, GEM |
| 19 | 15A | Engine, Cluster, Cummins PC M, CAT PCM, 7.3L Power Stroke PCM (Idle Valid Switch Input) |
| 20 | 15A | Starter Relay, GEM |
| 21 | 10A | Daytime Running Lamps (DRL) |
| 22 | 15A | Exhaust Brake (SuperCrewzer only), Heated Mirrors (SuperCrewzer only), Rear Air Suspension (SuperCrewzer only) |
| 23 | 10A | Electronic Flasher |
| 24 | 15A | Vacuum Pump, Air Dryer, ABS, Fuel Heater Relay |
| 25 | 10A | Blower Motor Relay |
| 26 | 10A | Right Low Beam Headlamp |
| 27 | – | Not Used |
| 28 | 10A | Left Low Beam Headlamp |
| 29 | 10A | 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 | 30A | 7.3L Power Stroke PCM Diode, 7.3L Power Stroke Fuel Heater |
| 31 | 15A | Allison MD Transmission, Neutral Start Relay and PCM (7.3L Power Stroke only) |
| Relay 1 | – | Interior Lamps |
| Relay 2 | – | Not Used |
| Relay 3 | – | Horn |
| Relay 4 | – | One Touch Down |
| Relay 5 | – | Not Used |
Power Distribution Box
List of fuses in the power distribution box (2001)
| № | A | Description |
|---|---|---|
| 1 | 15A* | Park Lamps, Roof Lamps |
| 2 | 25A* | Cummins Powertrain Control Module (PCM) |
| 15A* | Foglamps (SuperCrewzer only) | |
| 3 | 10A* | Generator |
| 4 | 15A* | Washer Pump |
| 5 | 15A* | Air Intake Heater Relay (CAT), Cummins PCM |
| 6 | 20A* | CAT PCM, Cummins PCM |
| 7 | 15A* | Stop Lamps |
| 8 | 25A* | C AT Fuel Heater |
| 9 | 30A* | Trailer Hook Up lamps (SuperCrewzer only) |
| 10 | 15A* | Shift Modulator (Allison AT trans only) |
| 11 | 20A* | Allison MD Trans, Allison 2000/2400 Trans |
| 12 | 10A* | Keyless Entry Module (SuperCrewzer only) |
| 13 | 10A* | Park Brake Adjustment Module (SuperCrewzer only) |
| 14 | – | Not Used |
| 15 | 7.5A* | Body Builder Prep (Hydraulic Vehicles Only) |
| 16 | 10A* | Allison 2000/2400 Trans |
| 17 | 5A* | Radio (SuperCrewzer only) |
| 18 | – | Not Used |
| 19 | – | Not Used |
| 20 | – | Not Used |
| 21 | 10A* | GEM (Hydraulic Vehicles Only) |
| 22 | – | Not Used |
| 23 | – | Not Used |
| 24 | – | Not Used |
| 101 | 40A** | ABS (Air Only) |
| 102 | 20A** | Body Builder Prep Run Feed |
| 103 | 50A** | Ignition Switch (JB fuses 8, 9, 11, 19, 20, 22, 23, 24, 25, 29, 30, 31) |
| 104 | 20A** | Power Point |
| 105 | 20A** | Power Door Locks |
| 106 | 30A** | Headlamps |
| 107 | 50A** | Junction Box Battery Feed (fuses 1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40A** | Cummins Fuel Heater |
| 109 | 40A** | Power Windows |
| 110 | 30A** | Power Seats (SuperCrewzer only) |
| 111 | 30A** | Body Builder Prep |
| 112 | 40A** | Blower Motor |
| 113 | 30A** | Heated Seats (SuperCrewzer only) |
| 114 | 30A** | E-Brake (SuperCrewzer only) |
| 115 | 40A** | Ignition Switch (JB fuses 5, 8, 9, 11,21) |
| 116 | 30A** | Body Builder Prep |
| 117 | 20A** | 7.3L Power Stroke PCM |
| 118 | 30A** | IDM (7.3L Power Stroke only) |
| 119 120 | 60A** | Hydraulic ABS, Air Brake Trailer Tow Fuse Block |
| 121 122 | 60A** | Hydromax Motor, Air Brake Trailer Tow Fuse Block |
| 201 | – | Washer Pump Relay |
| 202 | – | Wiper Speed Relay |
| 203 | – | Wiper Run/Park Relay |
| 204 | – | 7.3L Power Stroke Neutral Start Relay, Stoplamp Relay (CAT and Cummins only) |
| 205 | – | Right Hand Stop/Turn Relay |
| 206 | Left Hand Stop/Turn Relay | |
| 207 | – | Shift Modulator Relay (CAT and Power Stroke only), Cummins UP-44 Relay, A/C High Pressure Relay (SuperCrewzer only |
| 208 | – | Backup 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 | – | Park Lamps Relay |
| 303 | – | Blower Motor Relay |
| 304 | – | Air ABS Relay |
| 401 | – | Not Used |
| 501 | – | Not Used |
| 502 | – | Not Used |
| 503 | Diode | 7.3L Power Stroke PCM Diode |
| * Mini Fuses ** Maxi Fuses | ||
Air Brake Trailer Tow Relays (if equipped)
Air Brake Trailer Tow Relays (if equipped) (2001)
| № | A | Description |
|---|---|---|
| 1 | 30A** | Trailer Tow Run Feed |
| 2 | 30A** | Trailer Tow Park/Marker Lamps |
| 3 | 30A** | Trailer Tow Stop Lamps |
| 4 | 30A** | Trailer Tow Turn/Stop Lamps |
| 5 | – | Not Used |
| 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 | – | Not Used |
| R6 | – | Not Used |
| R7 | – | Trailer Tow Left Turn/Stop Lamp Relay |
| R8 | – | Trailer Tow Right Turn/Stop Lamp Relay |
| ** Maxi Fuse | ||
SuperCrewzer (if equipped)
SuperCrewzer (if equipped) (2001)
| № | A | Description |
|---|---|---|
| 1 | – | Not Used |
| 2 | – | Not Used |
| 3 | – | Not Used |
| 4 | – | Not Used |
| 5 | – | Not Used |
| R1 | – | Trailer Hookup Lamps Relay |
| R2 | – | Exhaust Brake Relay |
| R3 | – | Exhaust Brake Relay |
| R4 | – | Not Used |
| R5 | – | Not Used |
| R6 | – | Not Used |
| R7 | – | Not Used |
| R8 | – | Not Used |
2002
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2002)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Turn/Hazard Lamps |
| 3 | 20A | Cigar Lighter |
| 4 | 10A | Diagnostic Connectors |
| 5 | 15A | Back-Up Lamps, DRL Relays, Blend Door Actuator, Heated Seat Module (SuperCrewzer only), On/Off Fan Clutch (SuperCrewzer only), Warning Chime Module (SuperCrewzer only) |
| 6 | – | Not Used |
| 7 | – | Not Used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Switch Illumination (Headlamp, Power Windows, Power Door Locks), Power Window Relay, Trailer Hook Up Lamps (SuperCrewzer only) |
| 10 | – | Not Used |
| 11 | 30A | Wiper Motor, Washer Pump Relay |
| 12 | 10A | Stoplamp Switch (Hydraulic Vehicles Only) |
| 13 | 20A | Radio, Cluster, 7.3L Power Stroke Powertrain Control Module (PCM), Keep Alive Memory |
| 14 | 10A | Interior Lamps, Runningboard lamps (SuperCrewzer only) |
| 15 | 10A | GEM, Interior Lamp Relay, Map Lamps, Glove Box Lamps (SuperCrewzer only), Power Mirrors (SuperCrewzer only), Warning Chime Module (SuperCrewzer only) |
| 16 | 15A | Highbeams |
| 17 | – | Not Used |
| 18 | 5A | Headlamp switch, GEM |
| 19 | 15A | Engine, Cluster, Cummins PC M, CAT PCM, 7.3L Power Stroke PCM (Idle Valid Switch Input) |
| 20 | 15A | Starter Relay, GEM |
| 21 | 10A | Daytime Running Lamps (DRL) |
| 22 | 15A | Exhaust Brake (SuperCrewzer only), Heated Mirrors (SuperCrewzer only), Rear Air Suspension (SuperCrewzer only) |
| 23 | 10A | Electronic Flasher |
| 24 | 15A | Vacuum Pump, Air Dryer, ABS, Fuel Heater Relay |
| 25 | 10A | Blower Motor Relay |
| 26 | 10A | Right Low Beam Headlamp |
| 27 | – | Not Used |
| 28 | 10A | Left Low Beam Headlamp |
| 29 | 10A | 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 | 30A | 7.3L Power Stroke PCM Diode, 7.3L Power Stroke Fuel Heater |
| 31 | 15A | Allison MD Transmission, Neutral Start Relay and PCM (7.3L Power Stroke only) |
| Relay 1 | – | Interior Lamps |
| Relay 2 | – | Not Used |
| Relay 3 | – | Horn |
| Relay 4 | – | One Touch Down |
| Relay 5 | – | Not Used |
Power Distribution Box
List of fuses in the power distribution box (2002)
| № | A | Description |
|---|---|---|
| 1 | 15A* | Park Lamps, Roof Lamps |
| 2 | 25A* | Cummins Powertrain Control Module (PCM) |
| 15A* | Foglamps (SuperCrewzer only) | |
| 3 | 10A* | Generator |
| 4 | 15A* | Washer Pump |
| 5 | 15A* | Air Intake Heater Relay (CAT), Cummins PCM |
| 6 | 20A* | CAT PCM, Cummins PCM |
| 7 | 15A* | Stop Lamps |
| 8 | 25A* | C AT Fuel Heater |
| 9 | 30A* | Trailer Hook Up lamps (SuperCrewzer only) |
| 10 | 15A* | Shift Modulator (Allison AT trans only) (Except for f650 SuperCrewzer and Caterpillar/Cummins) |
| 11 | 20A* | Allison MD Trans, Allison 2000/2400 Trans |
| 12 | 10A* | Keyless Entry Module (SuperCrewzer only) |
| 13 | 10A* | Park Brake Adjustment Module (SuperCrewzer only) |
| 14 | – | Not Used |
| 15 | 7.5A* | Body Builder Prep (Hydraulic Vehicles Only) |
| 16 | 10A* | Allison 2000/2400 Trans (Except F650 SuperCrewzer) |
| 17 | 5A* | Radio (SuperCrewzer only) |
| 18 | – | Not Used |
| 19 | – | Not Used |
| 20 | – | Not Used |
| 21 | 10A* | GEM (Hydraulic Vehicles Only) |
| 22 | – | Not Used |
| 23 | – | Not Used |
| 24 | – | Not Used |
| 101 | 40A** | ABS (Air Only) |
| 102 | 20A** | Body Builder Prep Run Feed |
| 103 | 50A** | Ignition Switch (JB fuses 8, 9, 11, 19, 20, 22, 23, 24, 25, 29, 30, 31) |
| 104 | 20A** | Power Point |
| 105 | 20A** | Power Door Locks |
| 106 | 30A** | Headlamps |
| 107 | 50A** | Junction Box Battery Feed (fuses 1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40A** | Cummins Fuel Heater |
| 109 | 40A** | Power Windows |
| 110 | 30A** | Power Seats (SuperCrewzer only) |
| 111 | 30A** | Body Builder Prep |
| 112 | 40A** | Blower Motor |
| 113 | 30A** | Heated Seats (SuperCrewzer only) |
| 114 | 30A** | E-Brake (SuperCrewzer only) |
| 115 | 40A** | Ignition Switch (JB fuses 5, 8, 9, 11, 21) |
| 116 | 30A** | Body Builder Prep |
| 117 | 20A** | 7.3L Power Stroke PCM |
| 118 | 30A** | IDM (7.3L Power Stroke only) |
| 119/120 | 60A** | Hydraulic ABS, Air Brake Trailer Tow Fuse Block |
| 121/122 | 60A** | Hydromax Motor, Air Brake Trailer Tow Fuse Block |
| 201 | – | Washer Pump Relay |
| 202 | – | Wiper Speed Relay |
| 203 | – | Wiper Run/Park Relay |
| 204 | – | 7.3L Power Stroke Neutral Start Relay, Stoplamp Relay (CAT and Cummins only) |
| 205 | – | Right Hand Stop/Turn Relay |
| 206 | – | Left Hand Stop/Turn Relay |
| 207 | Shift Modulator Relay (CAT and Power Stroke only), Cummins VP-44 Relay, A/C High Pressure Relay (SuperCrewzer only | |
| 208 | – | Backup 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 | – | Park Lamps Relay |
| 303 | – | Blower Motor Relay |
| 304 | – | Air ABS Relay |
| 401 | – | Not Used |
| 501 | – | Not Used |
| 502 | – | Not Used |
| 503 | Diode | 7.3L Power Stroke PCM Diode |
| * Mini Fuses ** Maxi Fuses | ||
Air Brake Trailer Tow Relays (if equipped)
Air Brake Trailer Tow Relays (if equipped) (2002)
| № | A | Description |
|---|---|---|
| 1 | 30A** | Trailer Tow Run Feed |
| 2 | 30A** | Trailer Tow Park/Marker Lamps |
| 3 | 30A** | Trailer Tow Stop Lamps |
| 4 | 30A** | Trailer Tow Turn/Stop Lamps |
| 5 | – | Not Used |
| 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 | – | Not Used |
| R6 | – | Not Used |
| R7 | – | Trailer Tow Left Turn/Stop Lamp Relay |
| R8 | – | Trailer Tow Right Turn/Stop Lamp Relay |
| ** Maxi Fuse | ||
SuperCrewzer (if equipped)
SuperCrewzer (if equipped) (2002)
| № | A | Description |
|---|---|---|
| 1 | – | Not Used |
| 2 | – | Not Used |
| 3 | – | Not Used |
| 4 | – | Not Used |
| 5 | – | Not Used |
| R1 | – | Trailer Hookup Lamps Relay |
| R2 | – | Exhaust Brake Relay |
| R3 | – | Exhaust Brake Relay |
| R4 | – | Not Used |
| R5 | – | Not Used |
| R6 | – | Not Used |
| R7 | – | Not Used |
| R8 | – | Not Used |
2003
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2003)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Turn/Hazard lamps |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Diagnostic connectors |
| 5 | 15A | 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 | – | Not used |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Switch Illumination (headlamp, power Windows, power door locks), Power window relay, Trailer hook-up lamps (SuperCrewzer only) |
| 10 | – | Not used |
| 11 | 30A | Wiper motor, Washer pump relay |
| 12 | 10A | Stoplamp switch (hydraulic brake vehicles only) |
| 13 | 20A | Radio, Cluster, 7.3L Power Stroke Powertrain Control Module (PCM), Keep Alive Memory |
| 14 | 10A | Interior lamps, Running board lamps (SuperCrewzer only) |
| 15 | 10A | GEM, Interior lamp relay, Map lamps, Glove box lamps (SuperCrewzer only), Power mirrors (SuperCrewzer only), Warning chime module (SuperCrewzer only) |
| 16 | 15A | Highbeams |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch, GEM |
| 19 | 15A | Engine, Cluster, Cummins PCM, CAT PCM, 7.3L Power Stroke PCM (idle valid switch input), Alternator (Ambulance only) |
| 20 | 15A | Starter relay, GEM |
| 21 | 10A | DRL |
| 22 | 15A | Exhaust brake (SuperCrewzer only), Heated mirrors (SuperCrewzer only), Rear air suspension (SuperCrewzer and Ambulance) |
| 23 | 10A | Electronic flasher |
| 24 | 15A | Vacuum pump, Air dryer, ABS, Fuel heater relay |
| 25 | 10A | Blower motor relay |
| 26 | 10A | Right-hand low beam headlamp |
| 27 | – | Not used |
| 28 | 10A | Left-hand low beam headlamp |
| 29 | 10A | 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 | 30A | 7.3L Power Stroke PCM diode, 7.3L Power Stroke fuel heater |
| 31 | 15A | Allison MD Transmission, Neutral start relay and PCM (7.3L Power Stroke only) |
| Relay 1 | – | Interior lamps |
| Relay 2 | – | Not used |
| Relay 3 | – | Horn |
| Relay 4 | – | One touch down power window |
| Relay 5 | – | Not used |
Power Distribution Box
List of fuses in the power distribution box (2003)
| № | A | Description |
|---|---|---|
| 1 | 15A* | Park lamps, Roof lamps |
| 2 | 25A* | Cummins Powertrain Control Module (PCM) |
| 15A* | Foglamps (SuperCrewzer only) | |
| 3 | 10A* | Generator |
| 4 | 15A* | Washer pump |
| 5 | 15A* | CAT air intake heater relay, Cummins PCM |
| 6 | 20A* | CAT PCM, Cummins PCM |
| 7 | 15A* | Stop lamps |
| 8 | 25A* | CAT fuel heater |
| 9 | 30A* | Trailer hook-up lamps (SuperCrewzer only) |
| 10 | 15A* | Shift modulator (Allison AT transmission only) (except for F-650 SuperCrewzer and Caterpillar/Cummins) |
| 11 | 20A* | Allison MD transmission, Allison 2000/2400 transmission |
| 12 | 10A* | Keyless entry module (SuperCrewzer only) |
| 13 | 10A* | Park brake adjustment module (SuperCrewzer only) |
| 14 | – | Not used |
| 15 | 7.5A* | Body builder prep (hydraulic brake vehicles only) |
| 16 | 10A* | Allison 2000/2400 transmission (except F650 SuperCrewzer) |
| 17 | 5A* | Radio (SuperCrewzer only) |
| 18 | – | Not used |
| 19 | – | Not used |
| 20 | – | Not used |
| 21 | 10A* | GEM (hydraulic brake vehicles only) |
| 22 | – | Not used |
| 23 | – | Not used |
| 24 | – | Not used |
| 101 | 40A** | Anti-lock Brake System (ABS) (air brake vehicles only) |
| 102 | 20A** | Body builder prep run feed |
| 103 | 50A** | Ignition switch (Junction box fuses 8, 9, 11, 19, 20, 22, 23, 24, 25, 29, 30, 31) |
| 104 | 20A** | Power point |
| 105 | 20A** | Power door locks |
| 106 | 30A** | Headlamps |
| 107 | 50A** | Junction box battery feed (fuses 1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40A** | Cummins fuel heater |
| 109 | 40A** | Power Windows |
| 110 | 30A** | Power seats (SuperCrewzer only) |
| 111 | 30A** | Body builder prep |
| 112 | 40A** | Blower motor |
| 113 | 30A** | Heated seats (SuperCrewzer only) |
| 114 | 30A** | E-brake (SuperCrewzer only) |
| 115 | 40A** | Ignition switch (Junction box fuses 5, 8, 9, 11, 21) |
| 116 | 30A** | Body builder prep |
| 117 | 20A** | 7.3L Power Stroke PCM |
| 118 | 30A** | IDM (7.3L Power Stroke only) |
| 119/120 | 60A** | Hydraulic ABS, Air brake trailer tow fuse block |
| 121/122 | 60A** | Hydromax motor, Air brake trailer tow fuse block |
| 201 | – | Washer pump relay |
| 202 | – | Wiper speed relay |
| 203 | – | Wiper run/park relay |
| 204 | 7.3L Power Stroke neutral start relay, Stoplamp relay (CAT and Cummins only) | |
| 205 | – | Right-hand stop/turn relay |
| 206 | – | Left-hand stop/turn relay |
| 207 | Shift modulator relay (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 | – | Park lamps relay |
| 303 | – | Blower motor relay |
| 304 | – | Air ABS relay |
| 401 | – | Not used |
| 501 | – | Not used |
| 502 | – | Not used |
| 503 | Diode | 7.3L Power Stroke PCM diode |
| * Mini Fuses ** Maxi Fuses | ||
Air Brake Trailer Tow Relays (if equipped)
Air Brake Trailer Tow Relays (if equipped) (2003)
| № | A | Description |
|---|---|---|
| 1 | 30A** | Trailer Tow Run Feed |
| 2 | 30A** | Trailer Tow Park/Marker Lamps |
| 3 | 30A** | Trailer Tow Stop Lamps |
| 4 | 30A** | Trailer Tow Turn/Stop Lamps |
| 5 | – | Not Used |
| 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 | – | Not Used |
| R6 | – | Not Used |
| R7 | – | Trailer Tow Left Turn/Stop Lamp Relay |
| R8 | – | Trailer Tow Right Turn/Stop Lamp Relay |
| ** Maxi Fuse | ||
SuperCrewzer (if equipped)
SuperCrewzer (if equipped) (2003)
| № | A | Description |
|---|---|---|
| 1 | – | Not Used |
| 2 | – | Not Used |
| 3 | – | Not Used |
| 4 | – | Not Used |
| 5 | – | Not Used |
| R1 | – | Trailer Hookup Lamps Relay |
| R2 | – | Exhaust Brake Relay |
| R3 | – | Exhaust Brake Relay |
| R4 | – | Not Used |
| R5 | – | Not Used |
| R6 | – | Not Used |
| R7 | – | Not Used |
| R8 | – | Not Used |
2004
Fuse Block – Battery Junction Box
List of fuses in the battery junction box (2004)
| № | A | Fuse Description |
|---|---|---|
| F1 | 15A* | Main light switch |
| F2 | 30A* | Power seat (driver) |
| F3 | 30A* | Power seat (passenger) |
| F4 | 15A* | Washer pump relay, Washer pump motor |
| F5 | 15A* | Exhaust brake (Caterpillar and Cummins engine) |
| F6 | 15A* | Air intake heater (Caterpillar engine) |
| F7 | 15A* | Stoplamp switches |
| F8 | 25A* | Fuel heater relay (Caterpillar engine) |
| 20A* | Fuel heater relay (6.0L Power Stroke engine) | |
| F9 | – | Not used |
| F10 | 15A* | Heated drain valve |
| F11 | – | Not used |
| F12 | – | Not used |
| F13 | 10A* | Parking brake |
| F14 | – | Not used |
| F15 | 7.5A* | Body builder – trailer adapter stoplamps |
| F16 | 5A* | WABCO hydraulic ABS |
| F17 | – | Not used |
| F18 | 10A* | Fuel transfer pump |
| F19 | – | Not used |
| F20 | 10A* | Engine ECM power relay (6.0L Power Stroke engine) |
| F21 | 10A* | Control for Hydro-max motor |
| F22 | 10A* | V8 engine IDM2 logic power |
| F23 | – | Not used |
| F24 | – | Not used |
| F101 | 30A** | Air ABS relay, Hydraulic modulator relay |
| F102 | 20A** | Ignition switch to customer access |
| F103 | 50A** | Ignition switch, Central Junction Box (CJB) fuses 8, 9, 10, 11, 19, 20, 23, 24, 25, 29, 30, 31 |
| F104 | 20A** | Power point |
| F105 | 20A** | Door lock switches |
| F106 | 30A** | Main light switch, Multifunction switch, CJB fuses 16, 26 and 28, Headlamps, DRL relays |
| F107 | 50A** | CJB fuses 1, 2, 3, 4, 12, 13, 14, 15 |
| F108 | 40A** | Fuel heater relay (Cummins engine) |
| F109 | 40A** | Power window relay |
| F110 | – | Not used |
| F111 | 30A** | Park lamps relay, Park lamps |
| F112 | 40A** | Blower motor relay, Blower motor |
| F113 | 30A** | Heated seats |
| F114 | 25A** | Hydraulic ABS ECU power |
| F115 | 40A** | Ignition switch, CJB fuse 21 |
| F116 | 30A** | Turn relays and back-up lamp relay |
| F117 | 20A** | Stoplamp relay (Caterpillar and Cummins engine) |
| F118 | 60A** | Trailer tow left, right and ABS fuse block (Hydraulic brake vehicles) |
| F119/F120 | 60A** | Trailer tow fuse block, Stop/Tail/Marker lamps |
| F121/F122 | 60A** | Trailer tow fuse block (Air brake vehicles), Left, right and ABS, Hydraulic HydroMax pump motor fuse relay |
| Rl-201 | – | Washer pump relay |
| R2-202 | – | Wiper speed relay |
| R3-203 | – | Wiper run-park relay |
| R4-204 | Crank inhibit relay (6.0L Power Stroke engine)/Exhaust brake relay (Caterpillar and Cummins engine) | |
| R5-207 | – | Drain valve heater relay |
| R6-205 | – | RH stop/turn relay |
| R7-206 | – | LH stop/turn relay |
| R8-208 | – | Back-up lamps relay |
| R9-209 | ECM ISO relay (6.0L Power Stroke engine) or Stoplamp relay (Caterpillar and Cummins engine) | |
| FIR1-301 | – | Fuel heater, Fuel heater-fuel transfer pump |
| FIR2-302 | – | Park lamp relay |
| FIR3-303 | – | Blower motor relay |
| FIR4-304 | – | Air ABS relay, Hydraulic modulator relay |
| * Mini fuse **Maxi fuse | ||
Fuse Block – Central Junction Box
List of fuses in the central junction box (2004)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn relay |
| 2 | 15A | Hazard flasher |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Diagnostics |
| 5 | 15A | Blend door actuator, Back-up lamps, DRL signal, Heated seats |
| 6 | 10A | Horn switch |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM ACC |
| 9 | 5A | Headlamp switch LED, Window switch LED and relay |
| 10 | 15A | Heated and lighted mirrors |
| 11 | 30A | Wiper motor, Washer pump relay |
| 12 | 10A | Stop lamp switch (Hydraulic brake vehicles) |
| 13 | 20A | Cluster, Radio |
| 14 | 10A | Interior lamp relay |
| 15 | 10A | Interior lamp relay |
| 16 | 15A | Headlamp high beam, High beam indicator |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch interior lighting |
| 19 | 15A | Engine control (all engines), Accelerator pedal (6.0L Power Stroke engine) |
| 20 | 15A | Starting system |
| 21 | 10A | DRL resistor |
| 22 | 15A | Speed control feed (6.0L Power Stroke engine), Air solenoid, Fuel transfer pump |
| 23 | 10A | Hazard flasher (Run) |
| 24 | 15A | ABS, Air dryer, Vacuum pump, Fuel heater relay |
| 25 | 10A | Function selector switch |
| 26 | 10A | RH headlamp low beam |
| 27 | – | Not used |
| 28 | 10A | LH headlamp low beam |
| 29 | 10A | Cluster warning lamps, Gauges GEM, Hydraulic brake ABS |
| 30 | – | Not used |
| 31 | 15A | Allison transmission or ABS event |
| Relay 1 | 1/2 ISO | Interior lamp relay |
| Relay 2 | 1/2 ISO | Not used |
| Relay 3 | Full ISO | Horn relay |
| Relay 4 | Full ISO | One-touch window down relay |
| Relay 5 | Full ISO | Not used |
2005
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2005)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Turn/Hazard lamps |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Diagnostic connectors |
| 5 | 15A | Back-up lamps, DRL relays, Blend door actuator, Heated seat module, Trailer ABS relay |
| 6 | – | Not used |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Switch illumination (Headlamp, Power Windows, Power door locks), Power window relay |
| 10 | 15A | Heated/Lighted mirrors |
| 11 | 30A | Wiper motor, Washer pump relay |
| 12 | 10A | Stoplamp switch (Hydraulic brake vehicles only) |
| 13 | 20A | Radio, Cluster |
| 14 | 10A | Interior lamps |
| 15 | 10A | GEM, Interior lamp relay, Map lamps |
| 16 | 15A | High beams |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch, GEM |
| 19 | 15A | Engine ECM (Caterpillar and Cummins engines) |
| Engine ECM, Accel, Crank (6.0L Power Stroke engine only) | ||
| 20 | 15A | Starter relay, GEM |
| 21 | 10A | Daytime Running Lamps (DRL) |
| 22 | 15A | Air solenoid 4-pack (Air horn, Air suspension dump, Differential lock axle and Two-speed axle) |
| 23 | 10A | Electronic flasher |
| 24 | 15A | Vacuum pump, Air dryer, ABS, Fuel heater/Fuel transfer pump relay, Heated drain valve, 6.0L Power Stroke Water In Fuel (WIF) module |
| 25 | 10A | Blower motor relay |
| 26 | 10A | RH low beam headlamp |
| 27 | – | Not used |
| 28 | 10A | LH low beam headlamp |
| 29 | 10A | Cluster (Power, Warning lamps), Hydraulic ABS relay, Air traction control |
| 30 | 30A | Not used |
| 31 | 15A | Allison transmissions |
| Relay 1 | – | Interior lamps |
| Relay 2 | – | Not used |
| Relay 3 | – | Horn |
| Relay 4 | – | One-touch down window |
| Relay 5 | – | Not used |
Power Distribution Box
List of fuses in the power distribution box (2005)
| № | A | Fuse Description |
|---|---|---|
| 1 | 15A* | Park lamps, Roof lamps |
| 2 | 30A* | Power seat (driver) |
| 3 | 30A* | Power seat (passenger) |
| 4 | 15A* | Washer pump |
| 5 | 15A* | Exhaust brake (Caterpillar and Cummins engines only) |
| 6 | 15A* | Air intake heater (Caterpillar engine only) |
| 7 | 15A* | Stoplamps |
| 8 | 25A* | Fuel heater (Caterpillar engine only) |
| 20A* | Fuel heater (6.0L Power Stroke engine only) | |
| 9 | – | Not used |
| 10 | 15A* | Heated drain valve |
| 11 | – | Not used |
| 12 | – | Not used |
| 13 | 10A* | Power park brake |
| 14 | – | Not used |
| 15 | 7.5A* | Body builder prep/trailer socket stop (6.0L Power Stroke engine only) |
| 16 | 5A* | WABCO hydraulic ABS Run feed |
| 17 | – | Not used |
| 18 | 10A* | Fuel transfer pump (duel fuel tanks only) |
| 19 | – | Not used |
| 20 | 10A* | Engine ECM power relay (6.0L Power Stroke engine only) |
| 21 | 10A* | GEM (Hydraulic brake vehicles only) |
| 22 | 10A* | Engine IDM2 logic power (6.0L Power Stroke engine only) |
| 23 | – | Not used |
| 24 | – | Not used |
| 101 | 30A** | Bendix Air ABS relay (Air brake vehicles only) |
| WABCO ABS modulator relay (Hydraulic brake vehicles only) | ||
| 102 | 20A** | Body builder prep Run feed |
| 103 | 50A** | Ignition switch (Junction box fuses 8, 9, 10, 11, 19, 20, 22, 23, 24, 25, 29, 30, 31) |
| 104 | 20A** | Power point |
| 105 | 20A** | Power door locks |
| 106 | 30A** | Headlamps |
| 107 | 50A** | Junction box battery feed (1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40A** | Fuel heater (Cummins engine only) |
| 109 | 40A** | Power Windows |
| 110 | – | Not used |
| 111 | 30A** | Body builder prep |
| 112 | 40A** | Blower motor |
| 113 | 30A** | Heated seat (passenger side) |
| 114 | 25A** | WABCO ABS battery feed (Hydraulic brake vehicles only) |
| 115 | 40A** | Ignition switch (Junction box fuses 5, 8, 9, 10, 11, 21) |
| 116 | 30A** | Body builder prep |
| 117 | 20A** | Body builder prep/trailer socket stop (Caterpillar and Cummins engines only) |
| 118 | 60A** | Hydraulic brake trailer two fuse block |
| 119/120 | 60A** | Hydraulic brake trailer two fuse block |
| Air brake trailer two fuse block | ||
| 121/122 | 60A** | HydroMax motor |
| Air brake trailer two fuse block | ||
| 201 | – | Washer pump relay |
| 202 | – | Wiper speed relay |
| 203 | – | Wiper run/park relay |
| 204 | – | Neutral start relay (6.0L Power Stroke engine only) |
| Exhaust brake relay (Caterpillar and Cummins engines only) | ||
| 205 | – | RH stop/turn relay |
| 206 | – | LH stop/turn relay |
| 207 | – | Drain valve heater relay |
| 208 | – | Back-up lamps relay |
| 209 | – | Stoplamps relay |
| 301 | – | Fuel heater/Fuel transfer pump relay |
| 302 | – | Park lamps relay |
| 303 | – | Blower motor relay |
| 304 | – | Air ABS relay |
| Hydraulic modulator relay | ||
| 401 | – | Not used |
| 501 | – | Not used |
| 502 | – | Not used |
| 503 | – | Not used |
| * Mini fuse **Maxi fuse | ||
Air Brake Trailer Tow Relays (if equipped)
Air Brake Trailer Tow Relays (if equipped) (2005)
| № | A | Description |
|---|---|---|
| 1 | 30A* | Trailer tow ABS feed |
| 2 | 30A* | Trailer tow park/marker lamps |
| 3 | 30A* | Trailer tow stop lamps |
| 4 | 30A* | Trailer tow turn/stop lamps (combined) |
| Trailer tow turn lamps (separate) | ||
| 5 | – | Not used |
| R1 | – | Trailer tow ABS relay |
| R2 | – | Trailer tow stop lamp relay |
| R3 | – | Trailer tow park/marker lamp relay |
| R4 | – | Trailer tow tail lamp relay |
| R5 | – | Not used |
| R6 | – | Not used |
| R7 | – | Trailer tow left turn/stop lamp relay (combined) |
| Trailer tow left turn lamp relay (separate) | ||
| R8 | – | Trailer tow right turn/stop lamp relay (combined) |
| Trailer tow right turn lamp relay (separate) | ||
| *Maxi fuse | ||
2006
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2006)
| № | № | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Turn/Hazard lamps |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Diagnostic connectors |
| 5 | 15A | Back-up lamps, DRL relays, Blend door actuator, Heated seat module, Trailer ABS relay |
| 6 | – | Not used |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Switch illumination (Headlamp, Power Windows, Power door locks), Power window relay |
| 10 | 15A | Heated/Lighted mirrors |
| 11 | 30A | Wiper motor, Washer pump relay |
| 12 | 10A | Stoplamp switch (Hydraulic brake vehicles only) |
| 13 | 20A | Radio, Cluster |
| 14 | 10A | Interior lamps |
| 15 | 10A | GEM, Interior lamp relay, Map lamps |
| 16 | 15A | High beams |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch, GEM |
| 19 | 15A | Engine ECM (Caterpillar and Cummins engines) |
| Engine ECM, Accel, Crank (6.0L Power Stroke engine only) | ||
| 20 | 15A | Starter relay, GEM |
| 21 | 10A | Daytime Running Lamps (DRL) |
| 22 | 15A | Air solenoid 4-pack (Air horn, Air suspension dump, Differential lock axle and Two-speed axle) |
| 23 | 10A | Electronic flasher |
| 24 | 15A | Vacuum pump, Air dryer, ABS, Fuel heater/Fuel transfer pump relay, Heated drain valve, 6.0L Power Stroke Water In Fuel (WIF) module |
| 25 | 10A | Blower motor relay |
| 26 | 10A | RH low beam headlamp |
| 27 | – | Not used |
| 28 | 10A | LH low beam headlamp |
| 29 | 10A | Cluster (Power, Warning lamps), Hydraulic ABS relay, Air traction control |
| 30 | 30A | Not used |
| 31 | 15A | Allison transmissions |
| Relay 1 | – | Interior lamps |
| Relay 2 | – | Not used |
| Relay 3 | – | Horn |
| Relay 4 | – | One-touch down window |
| Relay 5 | – | Not used |
Power Distribution Box
List of fuses in the power distribution box (2006)
| № | A | Description |
|---|---|---|
| 1 | 15A* | Park lamps, Roof lamps |
| 2 | 30A* | Power seat (driver) |
| 3 | 30A* | Power seat (passenger) |
| 4 | 15A* | Washer pump |
| 5 | 15A* | Exhaust brake (Caterpillar and Cummins engines only) |
| 6 | 15A* | Air intake heater (Caterpillar engine only) |
| 7 | 15A* | Stoplamps |
| 8 | 25A* | Fuel heater (Caterpillar engine only) |
| 20A* | Fuel heater (6.0L Power Stroke engine only) | |
| 9 | 20A* | Inhibit relay, Engine ECM, Cluster, Transmission TCM |
| 10 | 15A* | Heated drain valve |
| 11 | – | Not used |
| 12 | 20A* | Daytime Running Lamps (DRL), Blend door actuator, Climate mode, Back-up, Heated seats, Trailer ABS, Exhaust brake |
| 13 | – | Not used |
| 14 | – | Not used |
| 15 | 7.5A* | Body builder prep/trailer socket stop (6.0L Power Stroke engine only) |
| 16 | 5A* | WABCO hydraulic ABS Run feed |
| 17 | – | Not used |
| 18 | 10A* | Fuel transfer pump (duel fuel tanks only) |
| 19 | – | Not used |
| 20 | 10A* | Engine ECM power relay (6.0L Power Stroke engine only) |
| 21 | 10A* | GEM (Hydraulic brake vehicles only) |
| 22 | 10A* | Engine IDM2 logic power (6.0L Power Stroke engine only) |
| 23 | – | Not used |
| 24 | – | Not used |
| 101 | 30A** | Bendix Air ABS relay (Air brake vehicles only) |
| WABCO ABS modulator relay (Hydraulic brake vehicles only) | ||
| 102 | 20A** | Body builder prep Run feed |
| 103 | 20A** | Ignition switch (Junction box fuses 8, 9, 10, 11, 19, 29, 30) |
| 104 | 20A** | Power point |
| 105 | 20A** | Power door locks |
| 106 | 30A** | Headlamps |
| 107 | 50A** | Junction box battery feed (1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40A** | Fuel heater (Cummins engine only) |
| 109 | 40A** | Power Windows |
| 110 | 30A** | Wiper power relay (Park, Low/High speed) |
| 111 | 30A** | Body builder prep |
| 112 | 40A** | Blower motor |
| 113 | 30A** | Heated seats |
| 114 | 25A** | WABCO ABS battery feed (Hydraulic brake vehicles only) |
| 115 | 20A** | Ignition switch, Central Junction Box fuses 8, 9, 10, 11, Starter motor relay |
| 116 | 30A** | Body builder prep |
| 117 | 20A** | Body builder prep/trailer socket stop (Caterpillar and Cummins engines only) |
| 118 | 60A** | Hydraulic brake trailer two fuse block |
| 119/120 | 60A** | Hydraulic brake trailer two fuse block |
| Air brake trailer two fuse block | ||
| 121/122 | 60A** | HydroMax motor |
| Air brake trailer two fuse block | ||
| 201 | – | Washer pump relay |
| 202 | – | Wiper speed relay |
| 203 | – | Wiper run/park relay |
| 204 | – | Neutral start relay (6.0L Power Stroke engine only) |
| Exhaust brake relay (Caterpillar and Cummins engines only) | ||
| 205 | – | RH stop/turn relay |
| 206 | – | LH stop/turn relay |
| 207 | – | Drain valve heater relay |
| 208 | – | Back-up lamps relay |
| 209 | – | Stoplamps relay |
| 301 | – | Fuel heater/Fuel transfer pump relay |
| 302 | – | Park lamps relay |
| 303 | – | Blower motor relay |
| 304 | – | Air ABS relay |
| Hydraulic modulator relay | ||
| 401 | – | Not used |
| 501 | – | Not used |
| 502 | – | Not used |
| 503 | – | Not used |
| * Mini fuse **Maxi fuse | ||
Air Brake Trailer Tow Relays (if equipped)
Air Brake Trailer Tow Relays (if equipped) (2006)
| № | A | Description |
|---|---|---|
| 1 | 30A* | Trailer tow ABS feed |
| 2 | 30A* | Trailer tow park/marker lamps |
| 3 | 30A* | Trailer tow stop lamps |
| 4 | 30A* | Trailer tow turn/stop lamps (combined) |
| Trailer tow turn lamps (separate) | ||
| 5 | – | Not used |
| R1 | – | Trailer tow ABS relay |
| R2 | – | Trailer tow stop lamp relay |
| R3 | – | Trailer tow park/marker lamp relay |
| R4 | – | Trailer tow tail lamp relay |
| R5 | – | Not used |
| R6 | – | Not used |
| R7 | – | Trailer tow left turn/stop lamp relay (combined) |
| Trailer tow left turn lamp relay (separate) | ||
| R8 | – | Trailer tow right turn/stop lamp relay (combined) |
| Trailer tow right turn lamp relay (separate) | ||
| *Maxi fuse | ||
Inline fuses
Your vehicle has two inline fuses located in/on the battery cables by the battery. A 10A fuse for the transmission control module and a 40A fuse for the engine control module.
2007
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2007)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Turn/Hazard lamps |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Diagnostic connectors, Power park brake chime |
| 5 | 15A | Back-up lamps, DRL relays, Blend door actuator, Heated seat module, Trailer ABS relay, Exhaust brake, Climate mode switch |
| 6 | – | Not used |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Switch illumination (Headlamp, Power Windows, Power door locks), Power window relay |
| 10 | 15A | Heated/Lighted mirrors |
| 11 | 5A | Wiper motor, Washer pump relay |
| 12 | 10A | Stoplamp switch (Hydraulic brake vehicles only) |
| 13 | 20A | Radio, Cluster |
| 14 | 10A | Interior lamps |
| 15 | 10A | GEM, Interior lamp relay, Map lamps |
| 16 | 15A | High beams |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch |
| 19 | 15A | Engine ECM (Caterpillar and Cummins engines) |
| Engine ECM, Accel, Crank (6.0L Power Stroke engine only) | ||
| 20 | 5A | Starter relay |
| 21 | 10A | Daytime Running Lamps (DRL) |
| 22 | 15A | Air solenoid 4-pack (Air horn, Air suspension dump, Differential lock axle and Two-speed axle) |
| 23 | 10A | Electronic flasher |
| 24 | 15A | Vacuum pump, Air dryer, ABS, Fuel heater/Fuel transfer pump relay, Heated drain valve, 6.0L Power Stroke Water In Fuel (WIF) module |
| 25 | 10A | Blower motor relay |
| 26 | 10A | RH low beam headlamp |
| 27 | – | Not used |
| 28 | 10A | LH low beam headlamp |
| 29 | 10A | Cluster (Power, Warning lamps), Hydraulic ABS relay, Air traction control, GEM, Hourmeter, Transmission temp |
| 30 | 15A | Allison transmissions |
| 31 | 15A | Not used |
| Relay 1 | – | Interior lamps |
| Relay 2 | – | Not used |
| Relay 3 | – | Horn |
| Relay 4 | – | One-touch down window |
| Relay 5 | – | Not used |
Power Distribution Box
List of fuses in the power distribution box (2007)
| № | A | Fuse Description |
|---|---|---|
| 1 | 15A* | Park lamps, Roof lamps |
| 2 | 30A* | Power seat (driver) |
| 3 | 30A* | Power seat (passenger) |
| 4 | 15A* | Washer pump |
| 5 | – | Not used |
| 6 | 15A* | Air intake heater (Caterpillar engine only) |
| 7 | 15A* | Stoplamps (Air brake vehicles only) |
| 8 | 25A* | Fuel heater (Caterpillar engine only) |
| 20A* | Fuel heater (6.0L Power Stroke engine only) | |
| 9 | 20A* | Crank inhibit relay, Engine ECM, Cluster, Transmission TCM, CJB Start, CJB Run |
| 10 | 15A* | Heated drain valve |
| 11 | 30A* | Electric trailer brake |
| 12 | 20A* | Daytime Running Lamps (DRL), Blend door actuator, Climate mode, Back-up, Heated seats, Trailer ABS, Exhaust brake |
| 13 | – | Not used |
| 14 | – | Not used |
| 15 | 7.5A* | Body builder prep/trailer socket stop (6.0L Power Stroke engine only) |
| 16 | 5A* | ABS Run feed |
| 17 | – | Not used |
| 18 | 10A* | Fuel transfer pump (duel fuel tanks only) |
| 19 | – | Not used |
| 20 | 10A* | Engine ECM power relay (6.0L Power Stroke engine only) |
| 21 | 10A* | Hydromax motor input to GEM |
| 22 | 10A* | Engine IDM2 logic power (6.0L Power Stroke engine only) |
| 23 | – | Not used |
| 24 | – | Not used |
| 101 | 30A** | Bendix Air ABS relay (Air brake vehicles only) |
| WABCO ABS modulator relay (Hydraulic brake vehicles only) | ||
| 102 | 20A** | Body builder prep Run feed |
| 103 | 20A** | Ignition switch (Junction box fuses 8, 9, 10, 11, 19, 29, 30) |
| 104 | 20A** | Power point |
| 105 | 20A** | Power door locks |
| 106 | 30A** | Headlamps |
| 107 | 50A** | Junction box battery feed (1, 2, 3, 4, 12, 13, 14, 15) |
| 108 | 40A** | Fuel heater (Cummins engine only) |
| 109 | 40A** | Power Windows |
| 110 | 30A** | Wiper power relay (Park, Low/High speed) |
| 111 | 30A** | Body builder prep – park lamps |
| 112 | 40A** | Blower motor |
| 113 | 30A** | Heated seats |
| 114 | 25A** | WABCO ABS battery feed (Hydraulic brake vehicles only) |
| 115 | 20A** | Ignition switch, Central Junction Box fuses 8, 9, 10, 11, Starter motor relay |
| 116 | 30A** | Body builder prep – left/right turn relays, Back-up lamps |
| 117 | 20A** | Body builder prep/trailer socket stop (Caterpillar and Cummins engines only) |
| 118 | 60A** | Hydraulic brake trailer tow fuse block |
| 119/120 | 60A** | Hydraulic brake trailer tow fuse block |
| Air brake trailer tow fuse block | ||
| 121/122 | 60A** | HydroMax motor |
| Air brake trailer tow fuse block | ||
| 201 | – | Washer pump relay |
| 202 | – | Wiper speed relay |
| 203 | – | Wiper run/park relay |
| 204 | – | Wiper power relay |
| 205 | – | RH stop/turn relay |
| 206 | – | LH stop/turn relay |
| 207 | – | Hydraulic ABS event relay |
| 208 | – | Back-up lamps relay |
| 209 | – | Stoplamps relay (Caterpillar and Cummins) |
| ECM ISO relay (V8 engines) | ||
| 301 | – | Fuel heater/Fuel transfer pump relay |
| 302 | – | Park lamps relay |
| 303 | – | Blower motor relay |
| 304 | – | Air ABS relay |
| Hydraulic modulator relay | ||
| 401 | – | Not used |
| 501 | – | Not used |
| 502 | – | Not used |
| 503 | – | Not used |
| * Mini fuse **Maxi fuse | ||
Trailer Tow Relays (If Equipped)
Trailer Tow Relays (If Equipped) (2007)
| № | A | Description |
|---|---|---|
| 1 | 30A* | Trailer tow ABS feed |
| 2 | 30A* | Trailer tow park/marker lamps |
| 3 | 30A* | Trailer tow stop lamps |
| 4 | 30A* | Trailer tow turn/stop lamps (combined) |
| Trailer tow turn lamps (separate) | ||
| 5 | – | Not used |
| R1 | – | Trailer tow ABS relay |
| R2 | – | Trailer tow park/marker lamp relay |
| R3 | – | Trailer tow stop lamp relay |
| R4 | – | Trailer tow tail lamp relay |
| R5 | – | Not used |
| R6 | – | Not used |
| R7 | – | Trailer tow left turn/stop lamp relay (combined) |
| Trailer tow left turn lamp relay (separate) | ||
| R8 | – | Trailer tow right turn/stop lamp relay (combined) |
| Trailer tow right turn lamp relay (separate) | ||
| *Maxi fuse | ||
Inline fuses
Your vehicle has two inline fuses located in/on the battery cables by the battery. A 10A fuse for the transmission control module and a 40A fuse for the engine control module.
2008
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2008)
| № | A | Fuse Description |
|---|---|---|
| 1 | 20A | Horn relay |
| 2 | 15A | Flasher |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Diagnostics, Parking brake warning |
| 5 | 15A | Blend door actuator, Climate mode, Back-up lamps, DRL signal, Heated seats, Trailer ABS, Exhaust brakes |
| 6 | – | Not used |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM 4 |
| 9 | 5A | Power window switch LED and relay |
| 10 | 15A | Heated mirrors |
| 11 | 5A | Wiper motor, Washer pump relays |
| 12 | 10A | Stoplamp switch (Hydraulic brake vehicles only), Allison push-button shifter |
| 13 | 20A | Cluster, Radio |
| 14 | 10A | Interior lamp relay |
| 15 | 10A | Interior lamp relay, GEM, Vanity mirrors |
| 16 | 15A | High beams, Indicator |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch interior lighting |
| 19 | 15A | Engine control |
| 20 | 5A | Starting system |
| 21 | 10A | DRL resistor |
| 22 | 15A | Air horn, Air suspension dump, Two-speed axle, Driver-controlled locking differential |
| 23 | 10A | Flasher |
| 24 | 15A | ABS, Air dryer, Vacuum pump, Fuel heater relay |
| 25 | 10A | Function selector switch |
| 26 | 10A | RH low beam headlamp |
| 27 | – | Not used |
| 28 | 10A | LH low beam headlamp |
| 29 | 10A | Cluster warning lamps, Gauges, GEM, Hydraulic ABS |
| 30 | 15A | Allison electronic transmission |
| 31 | – | Not used |
| Relay 1 | – | Interior lamps |
| Relay 2 | – | Not used |
| Relay 3 | – | Horn |
| Relay 4 | – | One-touch down window |
| Relay 5 | – | Not used |
Power Distribution Box
List of fuses in the power distribution box (2008)
| № | A | Fuse Description |
|---|---|---|
| 1 | 15A* | Main light switch |
| 2 | 30A* | Power seat (driver) |
| 3 | 30A* | Power seat (passenger) |
| 4 | 15A* | Washer pump relay, Washer pump motor |
| 5 | – | Not used |
| 6 | 15A* | Air intake heater (Caterpillar engine only) |
| 7 | 15A* | Stoplamp switches (Air brake vehicles only) |
| 8 | 25A* | Fuel heater relay (Caterpillar engine-equipped vehicles with dual fuel tanks only) |
| 9 | 20A* | Inhibit relay, Engine ECM, Cluster, Transmission TCM |
| 10 | 15A* | Heated drain valve |
| 11 | 30A* | Electric trailer brake |
| 12 | 20A* | Daytime Running Lamps (DRL), Blend door actuator, Climate mode, Back-up, Heated seats, Trailer ABS, Exhaust brake |
| 13 | – | Not used |
| 14 | – | Not used |
| 15 | 7.5A* | Body builder – trailer adapter stoplamps |
| 16 | 5A* | Bendix Air ABS (Air brake vehicles only) |
| WABCO ABS (Hydraulic brake vehicles only) | ||
| 17 | – | Not used |
| 18 | 10A* | Fuel transfer pump (duel fuel tanks only) |
| 19 | – | Not used |
| 20 | – | Not used |
| 21 | 10A* | Hydromax motor control |
| 22 | – | Not used |
| 23 | – | Not used |
| 24 | – | Not used |
| 101 | 30A** | Bendix Air ABS relay (Air brake vehicles only) |
| WABCO ABS modulator relay (Hydraulic brake vehicles only) | ||
| 102 | 20A** | Ignition switch to customer access |
| 103 | 20A** | Ignition switch (Junction box fuses 8, 9, 10, 11, 19, 29 and 30) |
| 104 | 20A** | Power point |
| 105 | 20A** | Power door locks |
| 106 | 30A** | Main light switch, Multifunction switch, CJB fuses 16, 26 and 28, Headlamps, DRL relays |
| 107 | 50A** | Junction box fuses 1, 2, 3, 4, 12, 13, 14 and 15 |
| 108 | 40A** | Fuel heater relay (Cummins engine only) |
| 109 | 40A** | Power window relay |
| 110 | 30A** | Wiper power relay (Park, Low/High speed) |
| 111 | 30A** | Park lamps relay, Park lamps |
| 112 | 40A** | Blower motor relay, Blower motor |
| 113 | 30A** | Heated seats |
| 114 | 25A** | Hydraulic ABS ECU power |
| 115 | 20A** | Ignition switch, Central Junction Box fuses 8, 9, 10 and 11, Starter motor relay |
| 116 | 30A** | Left/Right turn relays, Back-up lamp relay |
| 117 | 20A** | Stoplamps relay |
| 118 | 60A** | Hydraulic brake vehicles (Trailer tow package only) |
| 119/120 | 60A** | Hydraulic brake vehicle (Trailer tow package only) |
| Air brake vehicles (Trailer tow package only) | ||
| 121/122 | 60A** | Hydraulic brake, ABS system |
| Air brake trailer tow fuse block | ||
| 201 | – | Washer pump relay |
| 202 | – | Wiper speed relay |
| 203 | – | Wiper on/off relay |
| 204 | – | Wiper power relay |
| 205 | – | RH stop/turn relay |
| 206 | – | LH stop/turn relay |
| 207 | – | Hydraulic ABS event relay |
| 208 | – | Back-up lamps relay |
| 209 | – | Stoplamp relay |
| 301 | – | Fuel heater/Fuel transfer pump relay |
| 302 | – | Park lamps relay |
| 303 | – | Blower motor relay |
| 304 | – | Air ABS relay |
| Hydraulic modulator relay | ||
| * Mini fuse **Maxi fuse | ||
Trailer Tow Relays (If Equipped)
Trailer Tow Relays (If Equipped) (2008)
| № | A | Description |
|---|---|---|
| 1 | 30A* | Trailer tow ABS feed |
| 2 | 30A* | Trailer tow park/marker lamps |
| 3 | 30A* | Trailer tow stop lamps |
| 4 | 30A* | Trailer tow turn/stop lamps (combined) |
| Trailer tow turn lamps (separate) | ||
| 5 | – | Not used |
| R1 | – | Trailer tow ABS relay |
| R2 | – | Trailer tow marker lamp relay |
| R3 | – | Trailer tow stop lamp relay |
| R4 | – | Trailer tow tail lamp relay |
| R5 | – | Not used |
| R6 | – | Not used |
| R7 | – | Trailer tow left turn lamp relay |
| R8 | – | Trailer tow right turn lamp relay |
| *Maxi fuse | ||
Inline fuses
Your vehicle has two inline fuses located in/on the battery cables by the battery. A 10A fuse for the transmission control module and a 40A fuse for the engine control module.
2009
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2009)
| № | A | Fuse Description |
|---|---|---|
| 1 | 20A | Horn relay |
| 2 | 15A | Flasher |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Diagnostics, Parking brake warning |
| 5 | 15A | Blend door actuator, Climate mode, Back-up lamps, DRL signal, Heated seats, Trailer ABS, Exhaust brakes |
| 6 | – | Not used |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM 4 |
| 9 | 5A | Power window switch LED and relay |
| 10 | 15A | Heated mirrors |
| 11 | 5A | Wiper motor, Washer pump relays |
| 12 | 10A | Stoplamp switch (Hydraulic brake vehicles only), Allison push-button shifter |
| 13 | 20A | Cluster, Radio |
| 14 | 10A | Interior lamp relay |
| 15 | 10A | Interior lamp relay, GEM, Vanity mirrors |
| 16 | 15A | High beams, Indicator |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch interior lighting |
| 19 | 15A | Engine control |
| 20 | 5A | Starting system |
| 21 | 10A | DRL resistor |
| 22 | 15A | Air horn, Air suspension dump, Two-speed axle, Driver-controlled locking differential |
| 23 | 10A | Flasher |
| 24 | 15A | ABS, Air dryer, Vacuum pump, Fuel heater relay |
| 25 | 10A | Function selector switch |
| 26 | 10A | RH low beam headlamp |
| 27 | – | Not used |
| 28 | 10A | LH low beam headlamp |
| 29 | 10A | Cluster warning lamps, Gauges, GEM, Hydraulic ABS |
| 30 | 15A | Allison electronic transmission |
| 31 | – | Not used |
| Relay 1 | – | Interior lamps |
| Relay 2 | – | Not used |
| Relay 3 | – | Horn |
| Relay 4 | – | One-touch down window |
| Relay 5 | – | Not used |
Power Distribution Box
List of fuses in the power distribution box (2009)
| № | A | Fuse Description |
|---|---|---|
| 1 | 15A* | Main light switch |
| 2 | 30A* | Power seat (driver) |
| 3 | 30A* | Power seat (passenger) |
| 4 | 15A* | Washer pump relay, Washer pump motor |
| 5 | 5A* | Full power brake switch |
| 6 | 15A* | Air intake heater (Caterpillar engine only) |
| 7 | 15A* | Stoplamp switches (Air brake vehicles only) |
| 8 | 25A* | Fuel heater relay (Caterpillar engine-equipped vehicles with dual fuel tanks only) |
| 9 | 20A* | Inhibit relay, Engine ECM, Cluster, Transmission TCM |
| 10 | 15A* | Heated drain valve |
| 11 | 30A* | Electric trailer brake |
| 12 | 20A* | Daytime Running Lamps (DRL), Blend door actuator, Climate mode, Back-up, Heated seats, Trailer ABS, Exhaust brake |
| 13 | 10A* | Park brake switch |
| 14 | – | Not used |
| 15 | 7.5A* | Body builder – trailer adapter stoplamps |
| 16 | 5A* | Bendix Air ABS (Air brake vehicles only) |
| WABCO ABS (Hydraulic brake vehicles only) | ||
| 17 | – | Not used |
| 18 | 10A* | Fuel transfer pump (duel fuel tanks only) |
| 19 | – | Not used |
| 20 | – | Not used |
| 21 | – | Not used |
| 22 | – | Not used |
| 23 | – | Not used |
| 24 | – | Not used |
| 101 | 30A** | Bendix Air ABS relay (Air brake vehicles only) |
| WABCO ABS modulator relay (Hydraulic brake vehicles only) | ||
| 102 | 20A** | Ignition switch to customer access |
| 103 | 20A** | Ignition switch (Junction box fuses 8, 9, 10, 11, 19, 29 and 30) |
| 104 | 20A** | Power point |
| 105 | 20A** | Power door locks |
| 106 | 30A** | Main light switch, Multifunction switch, CJB fuses 16, 26 and 28, Headlamps, DRL relays |
| 107 | 50A** | Junction box fuses 1, 2, 3, 4, 12, 13, 14 and 15 |
| 108 | 40A** | Fuel heater relay (Cummins engine only) |
| 109 | 40A** | Power window relay |
| 110 | 30A** | Wiper power relay (Park, Low/High speed) |
| 111 | 30A** | Park lamps relay, Park lamps |
| 112 | 40A** | Blower motor relay, Blower motor |
| 113 | 30A** | Heated seats, Air ride seat |
| 114 | 25A** | Hydraulic ABS ECU power |
| 115 | 20A** | Ignition switch, Central Junction Box fuses 8, 9, 10 and 11, Starter motor relay |
| 116 | 30A** | Left/Right turn relays, Back-up lamp relay |
| 117 | 20A** | Stoplamps relay |
| 118 | 60A** | Hydraulic brake vehicles (Trailer tow package only) |
| 119/120 | 60A** | Hydraulic brake vehicle (Trailer tow package only) |
| Air brake vehicles (Trailer tow package only) | ||
| 121/122 | 60A** | Hydraulic brake, ABS system |
| Air brake trailer tow fuse block | ||
| 201 | – | Washer pump relay |
| 202 | – | Wiper speed relay |
| 203 | – | Wiper on/off relay |
| 204 | – | Wiper power relay |
| 205 | – | RH stop/turn relay |
| 206 | – | LH stop/turn relay |
| 207 | – | Hydraulic ABS event relay |
| 208 | – | Back-up lamps relay |
| 209 | – | Stoplamp relay |
| 301 | – | Fuel heater/Fuel transfer pump relay |
| 302 | – | Park lamps relay |
| 303 | – | Blower motor relay |
| 304 | – | Not used |
| * Mini fuse **Maxi fuse | ||
Relay Center
The relay center is located on the instrument panel behind the passenger side airbag panel. The relays are dependent upon the options on your vehicle.
Relay Center (2009)
| № | A | Description |
|---|---|---|
| EMPTY | – | Not used |
| INHIBIT RELAY (if equipped) | – | Inhibit relay |
| RUN RELAY (if equipped) | – | Run relay |
| ABS RELAY (if equipped) | – | ABS relay |
| FLL PWR BUZZER RELAY (if equipped) | – | Full power buzzer relay |
| MIER RELAY (if equipped) | – | Eaton UltraShift only starter interlock |
| RELAY | – | 2-Speed axle |
| DRAIN RELAY (if equipped) | – | Drain relay |
| WIF/EXH RELAY (if equipped) | – | Water in fuel / Exhaust relay |
| FLL PWR WARN RELAY (if equipped) | – | Full power warning relay |
| FAN RELAY (if equipped) | – | Fan relay |
| START ENABLE (if equipped) | – | Start enable relay |
| FLASHER (if equipped) | – | Flasher relay |
| POWER WINDOW (if equipped) | – | Power window relay |
| FULL POWER BUZZER (if equipped) | – | Full power buzzer relay |
| WARNING CHIME MODULE (if equipped) | – | Warning chime module relay |
Trailer Tow Relays (If Equipped)
Trailer Tow Relays (If Equipped) (2009)
| № | A | Description |
|---|---|---|
| 1 | 30A* | Trailer tow ABS feed (non electric trailer brake vehicles only) |
| 2 | 30A* | Trailer tow park/marker lamps |
| 3 | 30A* | Trailer tow stop lamps |
| 4 | 30A* | Trailer tow turn/stop lamps (combined) |
| Trailer tow turn lamps (separate) | ||
| 5 | – | Not used |
| R1 | – | Trailer tow ABS relay (non electric trailer brake vehicles only) |
| R2 | – | Trailer tow marker lamp relay |
| R3 | – | Trailer tow stop lamp relay |
| R4 | – | Trailer tow tail lamp relay |
| R5 | – | Not used |
| R6 | – | Not used |
| R7 | – | Trailer tow left turn lamp relay |
| R8 | – | Trailer tow right turn lamp relay |
| *Maxi fuse | ||
Inline fuses
Your vehicle has two inline fuses located in/on the battery cables by the battery. A 10A fuse for the transmission control module and a 40A fuse for the engine control module.
2010
Passenger Compartment Fuse Panel
List of fuses in the passenger compartment fuse panel (2010)
| № | A | Description |
|---|---|---|
| 1 | 20A | Horn |
| 2 | 15A | Flasher relay |
| 3 | 20A | Cigar lighter |
| 4 | 10A | Data Link Connector (DLC), Engine diagnostic connector, Parking brake warning |
| 5 | 15A | Blend door actuator, Function selector switch assembly, Trailer tow relay, Trailer ABS, Daytime Running Lights (DRL), Climate mode, Heated seats, Exhaust brakes, Back-up lamps switch |
| 6 | – | Not used |
| 7 | – | Not used |
| 8 | 5A | Radio, GEM |
| 9 | 5A | Power window switch LED and relay |
| 10 | 15A | Heated mirrors |
| 11 | 5A | Wiper and washer systems |
| 12 | 10A | Brake pedal position switch, Transmission shift selector, Stoplamp switch, Cruise switches |
| 13 | 20A | Cluster, Radio |
| 14 | 10A | Interior lamp relay |
| 15 | 10A | Interior lamp relay, Vanity mirror lamps, Generic Electronic Module (GEM) |
| 16 | 15A | High beams, Indicator |
| 17 | – | Not used |
| 18 | 5A | Headlamp switch interior lighting |
| 19 | 15A | Engine control |
| 20 | 5A | Starting system |
| 21 | 10A | DRL resistor |
| 22 | 15A | Air horn, Air suspension dump, Two-speed axle, Driver-controlled locking differential |
| 23 | 10A | Flasher relay |
| 24 | 15A | Vacuum pump motor, ABS relay, Fuel heater relay, Air dryer |
| 25 | 10A | Function selector switch assembly |
| 26 | 10A | Right hand low beam headlamp |
| 27 | – | Not used |
| 28 | 10A | Left hand low beam headlamp |
| 29 | 10A | Cluster, GEM |
| 30 | 15A | Allison electronic transmission |
| 31 | – | Not used |
| Relay 1 | – | Interior lamps |
| Relay 2 | – | Not used |
| Relay 3 | – | Horn |
| Relay 4 | – | One-touch down window |
| Relay 5 | – | Not used |
Power Distribution Box
List of fuses in the power distribution box (2010)
| № | A | Description |
|---|---|---|
| 1 | 15A* | Main light switch |
| 2 | 30A* | Power seat (driver) |
| 3 | 30A* | Power seat (passenger) |
| 4 | 15A* | Windshield washer relay, Washer pump motor |
| 5 | 5A* | Brake warning switch |
| 6 | 15A* | Air intake heater (Caterpillar engine only) |
| 7 | 15A* | Brake pressure switches, Stoplamp relay |
| 8 | 25A* | Fuel heater relay |
| 9 | 20A* | Ignition switch, Starter cutoff |
| 10 | 15A* | Air tank moisture removal valve |
| 11 | 30A* | Electronic trailer brake |
| 12 | 20A* | Passenger compartment fuse box 5 and 21 |
| 13 | – | Not used |
| 14 | – | Not used |
| 15 | – | Not used |
| 16 | 5A* | Bendix Air ABS6 |
| 17 | – | Not used |
| 18 | 10A* | Fuel transfer pump |
| 19 | – | Not used |
| 20 | – | Not used |
| 21 | – | Not used |
| 22 | – | Not used |
| 23 | – | Not used |
| 24 | – | Not used |
| 101 | 30A** | Bendix Air ABS relay (Air brake vehicles only) |
| Hydraulic brakes module (Hydraulic brake vehicles only) | ||
| 102 | 20A** | Ignition switch |
| 103 | 20A** | Ignition switch, Passenger compartment fuse box fuses 19, 29 and 30 |
| 104 | 20A** | Power point |
| 105 | 20A** | Power door lock switches |
| 106 | 30A** | Main light switch, Multifunction switch |
| 107 | 50A** | Passenger compartment fuse box fuses 1,2, 3, 4, 12, 13, 14 and 15 |
| 108 | 40A** | Fuel heater relay |
| 109 | 40A** | Power window relay |
| 110 | 30A** | Windshield wiper relay |
| 111 | 30A** | Body builder relay, Parking lamps |
| 112 | 40A** | Blower motor relay, Blower motor |
| 113 | 30A** | Heated seats switches, Air ride seat |
| 114 | – | Not used |
| 115 | 20A** | Ignition switch, Passenger compartment fuse box fuses 8, 9, 10 and 11 |
| 116 | 30A** | Left/Right turn relays, Back-up lamp relay |
| 117 | 20A** | Stoplamps relay |
| 118 | 60A** | Hydraulic brake vehicles (Trailer tow package only) |
| 601 | 60A** | Hydraulic brake vehicles (Trailer tow package only), Air brake vehicles (Trailer tow package only) |
| 602 | 60A** | Air brake trailer tow fuse block |
| 30A** | Hydraulic brake, ABS | |
| 201 | – | Windshield washer relay |
| 202 | – | Wiper high/low relay |
| 203 | – | Wiper run/park relay |
| 204 | – | Windshield wiper relay |
| 205 | – | Body builder relay, right turn |
| 206 | – | Body builder relay, left turn |
| 207 | – | ABS event relay (Air brake vehicles only) |
| – | Stop lamp relay (Hydraulic brake vehicles only) | |
| 208 | – | Body builder relay, back-up lamps relay |
| 209 | – | Auxiliary stoplamp relay |
| 301 | – | Fuel heater/transfer pump relay |
| 302 | – | Body builder relay, parking lamps relay |
| 303 | – | Blower motor relay |
| 304 | – | ABS relay, Hydraulic modulator relay |
| * Mini fuse **Maxi fuse | ||
Relay Center
The relay center is located on the instrument panel behind the passenger side airbag panel. The relays are dependent upon the options on your vehicle.
Relay Center (2010)
| Relay Location | Relay description |
|---|---|
| EMPTY | Not used |
| INHIBIT RELAY | Starter cutoff |
| RUN RELAY | Run relay |
| ABS RELAY | ABS warning indicator |
| FLL PWR BUZZER RELAY | Hydraulic brake buzzer |
| MIER RELAY | Eaton UltraShift |
| RELAY | TWo-speed axle/Differential lock disable |
| DRAIN RELAY | Air tank moisture removal valve |
| EMPTY | Not used |
| FLL PWR WARN RELAY | Hydraulic brake |
| FAN RELAY | Eaton Ultrashift fan |
| START ENABLE | Starter cutoff |
| FLASHER | Flasher |
| POWER WINDOW | Power window |
| FULL POWER BUZZER | Full power buzzer |
| WARNING CHIME MODULE | Warning chime module |
Trailer Tow Relays (If Equipped)
Trailer Tow Relays (If Equipped) (2010)
| № | A | Description |
|---|---|---|
| 1 | 30A* | Trailer tow ABS feed (non electric trailer brake vehicles only) |
| 2 | 30A* | Trailer tow park/marker lamps |
| 3 | 30A* | Trailer tow stop lamps |
| 4 | 30A* | Trailer tow turn/stop lamps (combined) |
| Trailer tow turn lamps (separate) | ||
| 5 | – | Not used |
| R1 | – | Trailer tow ABS relay (non electric trailer brake vehicles only) |
| R2 | – | Trailer tow marker lamp relay |
| R3 | – | Trailer tow stop lamp relay |
| R4 | – | Trailer tow tail lamp relay |
| R5 | – | Not used |
| R6 | – | Not used |
| R7 | – | Trailer tow left turn lamp relay |
| R8 | – | Trailer tow right turn lamp relay |
| *Maxi fuse | ||
Inline fuses
Your vehicle may have several inline fuses located in/on the battery cables located in the battery box depending on application.
Conclusion
The Ford F-650 and F-750 (2000–2010) use a fuse and relay system similar in structure to lighter-duty Ford trucks, but with the added complexity of auxiliary panels and chassis-mounted relays required for commercial and upfitted equipment. Knowing where your main fuse boxes are located along with any auxiliary panels specific to your truck’s body configuration, makes troubleshooting electrical issues far more manageable.
Always handle fuses and relays with care, confirm amperage ratings before replacing components, and consult your upfitter’s documentation for equipment-specific relays not covered by Ford’s standard wiring diagrams. If electrical problems persist or involve complex systems like the PTO or auxiliary hydraulics, consulting a technician experienced with medium-duty commercial trucks is strongly recommended.
