Fuses and Relay Guide: 2022 FORD E-450 Fuse Diagrams
In the 2022 Ford E-450, the fuse diagrams are very important for knowing how the car’s electrical system works. They show drivers where to find each fuse and relay and what they do. These diagrams are very helpful for finding and fixing electrical problems. They help drivers figure out what’s wrong with different parts of the car, like the lighting, radio systems, or other electrical systems. By looking at the fuse diagrams in the fuse box, 2022 Ford E-450 drivers can easily find their way around the car’s electrical system, making sure it works perfectly and reliably on the road.
2023 Ford Maverick Specs, Price, Features and Mileage (Brochure)
FUSE SPECIFICATION CHART
Engine Compartment Fuse Box
WARNING: Always disconnect the battery before servicing high-current fuses.
WARNING: To reduce the risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs.
Note: If your vehicle has dual batteries, disconnecting the primary under-hood battery does not remove power from all circuits.
- The engine compartment fuse box is in the engine compartment.
- It has high-current fuses that protect your vehicle’s main electrical systems from overloads.
- If you disconnect and reconnect the battery, you need to reset some features. See Changing the 12V Battery.
- Replace fuses with the same type and rating.
- See Changing a Fuse.
| Item | Rating | Protected Component |
| 1 | 20 A | Horn. |
| 2 | 50 A | Blower motor. |
| 3 | — | Not used. |
| 4 | 30 A | Starter relay. |
| 5 | — | Not used. |
| 6 | 20 A | Upfitter relay 4 (cutaway). Not used (spare) (stripped chassis). |
| 8 | — | Not used. |
| 10 | — | Not used. |
| 12 | 20 A | Powerpoint 4. |
| 13 | 10 A | Yaw sensor (stripped chassis).
Not used (spare) (cutaway). |
| 14 | 10 A | Forward-looking radar (cutaway).
Not used (spare) (stripped chassis). |
| 15 | — | Not used. |
| 16 | — | Not used. |
| 17 | 10 A | Powertrain control module run/start feed. |
| 18 | 10 A | Anti-lock brake system run/ start feed. |
| 19 | — | Not used. |
| 20 | 30 A | Wiper power. |
| 21 | — | Not used. |
| 22 | 10 A | Wiper module (stripped chassis).
Not used (spare) (cutaway). |
| 23 | — | Not used. |
| Item | Rating | Protected Component |
| 24 | 40 A | Body control module – run power in feed 2. |
| 25 | 50 A | Body control module – run power in feed 1. |
| 26 | — | Not used. |
| 27 | 20 A | Bodybuilder frame connector. |
| 28 | — | Not used. |
| 29 | 10 A | B+ power 12 V(special order vehicle). |
| 30 | 30 A | Power driver seat (cutaway).
Not used (spare) (stripped chassis). |
| 31 | — | Not used. |
| 32 | 20 A | Vehicle power 1. |
| 33 | 20 A | Vehicle power 2. |
| 34 | 10 A | Vehicle power 3. |
| 35 | 20 A | Vehicle power 4. |
| 36 | — | Not used. |
| 37 | — | Not used. |
| 38 | 10 A | Washer relay (stripped chassis).
Not used (spare) (cutaway). |
| 39 | — | Not used. |
| 41 | 30 A | Trailer brake control connector. |
| 43 | 30 A | Instrument panel connector (stripped chassis).
Not used (spare) (cutaway). |
| 45 | — | Not used. |
| 46 | 10 A | A/C clutch. |
| Item | Rating | Protected Component |
| 47 | 40 A | Upfitter relay 1 (cutaway). Not used (spare) (stripped chassis). |
| 48 | — | Not used. |
| 49 | 30 A | Pump electronics module. |
| 50 | 15 A | Injectors. |
| 51 | 20 A | Powerpoint 1. |
| 52 | 50 A | Power at all times (PAAT) Aux AC Prep on B-pillar vehicle connector (cutaway).
Not used (spare) (stripped chassis). |
| 53 | 30 A | Trailer tow park lamps. |
| 54 | 40 A | R/S feed on instrument panel connector. |
| 55 | 20 A | Upfitter 3 relay (cutaway). Not used (spare) (stripped chassis). |
| 56 | 20 A | Powerpoint 2 prep B-pillar connector. |
| 58 | 5 A | USB smart charger. |
| 59 | 10 A | Park lamps 1 (special order vehicle). |
| 60 | — | Not used. |
| 61 | — | Not used. |
| 62 | — | Not used. |
| 63 | — | Not used. |
| 64 | — | Not used. |
| 65 | — | Not used. |
| 66 | — | Not used. |
| 67 | — | Not used. |
| Item | Rating | Protected Component |
| 69 | — | Not used. |
| 70 | 40 A | Inverter. |
| 71 | 30 A | Anti-lock brake system valves. |
| 72 | 10 A | Brake on and off switch. |
| 73 | — | Not used. |
| 74 | — | Not used. |
| 75 | — | Not used. |
| 76 | 60 A | Anti-lock brake system pump. |
| 77 | 30 A | Voltage quality module power – body control module. |
| 78 | 10 A | Trailer tow stoplamps. |
| 79 | — | Not used. |
| 80 | 10 A | Trailer tow backup lamps. |
| 81 | — | Not used. |
| 82 | 5 A | Upfitter switch (factory location for ignition power). |
| 83 | 5 A | Upfitter switch (optional location for power at all times). |
| 84 | — | Not used. |
| 85 | — | Not used. |
| 86 | — | Not used. |
| 87 | — | Not used. |
| 88 | — | Not used. |
| 89 | — | Not used. |
| 91 | 40 A | Hot at all times (HAAT) / B+PWR on B-Pillar connector (cutaway). |
| Item | Rating | Protected Component |
| Battery Power on instrument panel connector(stripped chassis). | ||
| 93 | 10 A | Park lamps 3 (special order vehicle). |
| 94 | 10 A | Park lamps 2 (special order vehicle). |
| 95 | 20 A | Stoplamp relay. |
| 96 | — | Not used. |
| 97 | 50 A | Battery Power on Engine. B-pillar vehicle connector. Instrument panel. |
| 98 | 30 A | Trailer tow battery charge. |
| 99 | 40 A | Upfitter 2 relay (cutaway). Not used (spare) (stripped chassis). |
| 100 | — | Not used. |
| 101 | — | Not used. |
| 102 | — | Not used. |
| 103 | — | Not used. |
| 104 | — | Not used. |
| 105 | 15 A | Trailer tow right-hand and left-hand stop lamp and direction indicator relay power. |
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse Box
WARNING: Always disconnect the battery before servicing high-current fuses.
Note: If your vehicle has dual batteries, disconnecting the primary under-hood battery does not remove power from all circuits. The fuse panel is to the left-hand side of the brake pedal and mounted onto the lower left-hand cowl panel. Remove the fuse panel cover to access the fuses. To remove a fuse, use the fuse puller tool provided on the inside of the fuse panel cover. Replace fuses with the same type and rating. See Changing a Fuse.
| Item | Rating | Protected Component |
| 1 | — | Not used. |
| 2 | 10 A | Left-hand front and right-hand front door lock switch (cutaway).
Inverter (cutaway). Connector (stripped chassis). |
| 3 | 7.5 A | Power mirror switch (cutaway). |
| — | Not used (stripped chassis). | |
| 4 | 20 A | Not used (spare). |
| 5 | 20 A | Not used (spare). |
| 6 | 10 A | Not used (spare). |
| 7 | 10 A | Not used (spare). |
| 8 | 5 A | Not used (spare). |
| Item | Rating | Protected Component |
| 9 | 5 A | Not used (spare). |
| 10 | — | Not used. |
| 11 | — | Not used. |
| 12 | 7.5 A | Smart datalink connector. |
| 13 | 7.5 A | Cluster.
Steering column control module. |
| 14 | 15 A | Not used (spare). |
| 15 | 15 A | Not used (spare). |
| 16 | — | Not used. |
| 17 | 7.5 A | Not used. |
| 18 | 7.5 A | R/S feed for Front blend actuator/climate mode switch (cutaway).
R/S feed to strip chassis connector (stripped chassis). |
| 19 | 5 A | Radio transceiver module and telematics control unit. Telematics control unit. |
| 20 | 5 A | Ignition switch. |
| 21 | 5 A | Not used. |
| 22 | 5 A | Bodybuilder B-pillar connector (cutaway). |
| 5 A | Not used (stripped chassis). | |
| 23 | 30 A | Not used (spare). |
| 24 | 30 A | Not used (spare). |
| 25 | 20 A | Not used (spare). |
| 26 | 30 A | Not used (spare). |
| 27 | 30 A | Not used (spare). |
| 28 | 30 A | Not used (spare). |
| Item | Rating | Protected Component |
| 29 | 15 A | Upfitter interface module (cutaway). |
| — | Not used (stripped chassis). | |
| 30 | 5 A | Not used (spare). |
| 31 | 10 A | Smart datalink connector. |
| 32 | 20 A | Radio (cutaway). |
| 33 | — | Not used. |
| 34 | 30 A | Not used (spare). |
| 35 | 5 A | Tow haul switch. |
| 36 | 15 A | Rearview mirror (cutaway). Camera lane departure (cutaway). |
| — | Not used (stripped chassis). | |
| 37 | 20 A | Not used (spare). |
| 38 | 30 A | Power window switches and motors (cutaway). |
| — | Not used (stripped chassis). |
Note: Spare fuse amperage may vary.
CHANGING A FUSE
Fuses
WARNING: Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.
- 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.
Fuse Types
- A Micro 2.
- B Micro 3.
- C Maxi.
- D Mini.
- E M Case.
- F J Case.
- G J Case Low Profile.
- H Slotted M Case.
FAQs
Fuses are designed to protect the vehicle’s electrical circuits by breaking them when there is excessive current due to overloads or short circuits, preventing damage to electrical components and reducing the risk of fires.
The fuse box in the 2022 Ford E-450 is typically located in an easily accessible area within the vehicle’s cabin. Common locations include under the dashboard or on the side of the driver’s seat area.
A blown fuse can often be identified by a visible break in the wire inside the fuse. The metal strip in the center of the fuse may also be melted.
If a fuse blows, it’s important to replace it with a new fuse of the same amperage rating. Using a fuse with a different rating can cause electrical problems or damage.
To check the fuses, you’ll need to remove the fuse box cover and visually inspect each fuse. If you suspect a fuse is blown, gently pull it out and examine it. A multimeter can also be used to check for continuity.
Yes, you can typically replace a blown fuse yourself. However, it’s important to follow proper procedures and use the correct replacement fuse. If you’re unsure or uncomfortable with the process, seek professional assistance.
Electrical issues like malfunctioning power windows, lights, or the radio not working could be related to blown fuses. Checking the fuses is a common troubleshooting step for these problems.
Yes, it’s important to disconnect the vehicle’s battery before working with fuses to prevent electrical shocks or accidental circuit activation. Always use caution and follow safety guidelines.
Replacement fuses can typically be found at auto parts stores and hardware stores. Ensure you get fuses with the correct amperage rating.
If replacing fuses doesn’t resolve the problem or if you’re unsure about the issue, consult a Ford dealership or a qualified automotive technician for further diagnosis and repairs.
Useful Links
View Full PDF: 2022 FORD E-450 User Manual | Auto User Guide
2023 Ford Maverick Specs, Price, Features and Mileage (Brochure)
Dashboard Indicators Guide: 2022 FORD E-450 Instrument Cluster