How-to · Elgin CDJR · Streamwood, IL
Ram 1500 Fuse Box Guide
The 2026 Ram 1500 Owner's Manual lists two Power Distribution Centers (PDCs): one under the hood near the battery and one under the driver's side instrument panel, plus an auxiliary PDC for the auxiliary switches if equipped. Here is where each one is, how to get the interior cover off, the manual's rules for replacing a fuse, and the cavity, rating and circuit for common fuses.
Underhood PDCin the engine compartment near the battery
Interior PDCunder the driver's side instrument panel
2 screwshold the interior fuse panel cover
Same amp ratingalways use it for a replacement fuse
The short answer
On a 2026 Ram 1500, the main fuse box (the underhood Power Distribution Center) is in the engine compartment near the battery; the cavity number of each fuse is stamped on the inside of its cover. The interior Power Distribution Center is under the driver's side instrument panel: remove the two screws from the lower portion of the fuse panel cover, then gently pull both sides of the cover to release the clips. Replace a blown fuse only with one of the same amp rating, with the ignition off.
Where the Ram 1500 fuse boxes are
| Fuse box | Location | What it holds |
|---|---|---|
| Underhood Power Distribution Center | In the engine compartment near the battery. It is item 8 in the manual's 3.0L engine compartment views and item 9 in the 3.6L view; the 5.7L view also shows it. | Cartridge fuses, micro fuses, relays and circuit breakers. A description of each fuse may be stamped on the inside cover; otherwise the cavity number is stamped there. |
| Interior Power Distribution Center | Under the driver's side instrument panel. | Cartridge fuses, micro fuses, relays and circuit breakers. |
| Auxiliary Power Distribution Center (if equipped) | In the engine compartment toward the front of the vehicle, in front of the main PDC. Remove the upper shield to access it. | Fuses for the auxiliary switches. If equipped, additional auxiliary switch fuses are in the main PDC. |
From the 2026 Ram 1500 Owner's Manual (Engine Compartment, pages 310 to 313; Fuses: Underhood and Interior Power Distribution Center, pages 327 and 335; Auxiliary Switches, page 342), read November 1, 2026.
The manual cautions that when installing the power distribution center cover, it is important to make sure the cover is properly positioned and fully latched; otherwise water may get into the power distribution center and possibly cause an electrical system failure. If you wash the underhood compartment, take care not to hit the fuse box and the windshield wiper motors directly with water.
How to remove the interior fuse panel cover
The 2026 Ram 1500 Owner's Manual gives these steps for reaching the interior fuses:
- Locate and remove the two screws from the lower portion of the fuse panel cover.
- After removing the screws, gently pull both the left and right side of the fuse panel cover to release the fastener clips.
- Reverse the procedure to reinstall the fuse panel cover.
From the 2026 Ram 1500 Owner's Manual (Interior Power Distribution Center, page 335), read November 1, 2026.
Checking and replacing a Ram 1500 fuse
The manual says the fuses protect electrical systems against excessive current, and that when a device does not work, you must check the fuse element inside the blade fuse for a break or melt. Its rules for replacing one:
- Before replacing a fuse, make sure the ignition is off and all other services are switched off and/or disengaged.
- Always use a replacement fuse with the same amp rating as the original. Never replace a fuse with another fuse of a higher amp rating.
- Never replace a blown fuse with metal wires or any other material, and do not place a fuse inside a circuit breaker cavity or vice versa.
- If a properly rated fuse continues to blow, it indicates a problem in the circuit that must be corrected. If the replaced fuse blows again, contact an authorized dealer.
- If a general protection fuse for safety systems (air bag system, braking system), power unit systems (engine system, transmission system) or the steering system blows, contact an authorized dealer.
The manual also notes that using power outlets for extended periods of time with the engine off may result in vehicle battery discharge.
From the 2026 Ram 1500 Owner's Manual (Fuses: General Information, page 327), read November 1, 2026.
Common underhood fuses (2026 Ram 1500)
The full underhood chart in the manual runs from cavities N1 to N10 and F01 to F88. These are some of the circuits owners look for most often; an asterisk in the manual means if equipped.
| Cavity | Fuse | Circuit (as printed in the manual) |
|---|---|---|
| F25 | 40 Amp Green cartridge | STARTER |
| F40 | 20 Amp Yellow micro | HORN |
| F86 | 30 Amp Pink cartridge | FRT WPR |
| F87 | 40 Amp Green cartridge | HVAC BLOWER MOTOR |
| F43 | 30 Amp Pink cartridge | PWR TAILGATE |
| F78 | 20 Amp Yellow micro | TAILGATE LATCHES |
| F69 | 30 Amp Pink cartridge | REAR DEFROSTER (if equipped) |
| F75 | 30 Amp Pink cartridge | PWR SIDE STEP (if equipped) |
| F09 | 25 Amp Clear micro | FUEL PMP MTR / ASSY FUEL TANK (if equipped) |
| F07 | 20 Amp Yellow micro | ADJ PEDALS (if equipped) |
From the 2026 Ram 1500 Owner's Manual (Underhood Power Distribution Center chart, pages 328 to 334), read November 1, 2026. Check the chart in your own manual and the stamping inside your cover; other model years and equipment can differ.
Common interior fuses (2026 Ram 1500)
The interior chart lists cavities F01 to F66 and circuit breakers CB1 to CB6. Some of the circuits it covers:
| Cavity | Fuse | Circuit (as printed in the manual) |
|---|---|---|
| F01 | 30 Amp Pink cartridge | Assy Trailer Tow Receptacle |
| F07 | 40 Amp Green cartridge | Mod Integration Trailer Brake Module (ITBM) |
| F44 | 20 Amp Yellow micro | MOD CMCM (Radio) |
| F50B | 10 Amp Red micro | Port Diagnostic 1 & 2 |
| F54 A&B | 20 Amp Yellow micro | Power Outlet-Center Seat (battery feed and IGN feed) |
| F49 | 15 Amp Blue micro | Mod Seat Heater FRT (STRNG WHL) |
| F34 | 20 Amp Yellow micro | Module Seat Heater FRT (Driver) |
| F29 | 20 Amp Yellow micro | Module Seat Heater FRT (PASS) |
| F60 | 50 Amp Red cartridge | Mod Inverter 400W |
| CB5 | 25 Amp circuit breaker | Power Window Rearview |
From the 2026 Ram 1500 Owner's Manual (Interior Power Distribution Center chart, pages 335 to 342), read November 1, 2026. Other model years and equipment can differ.
Auxiliary switch fuses (if equipped)
If your truck has auxiliary switches in the lower switch bank of the instrument panel, the manual says they manage relays that power four or six blunt cut wires under the hood to the right, near the battery, where a fused battery wire and an ignition wire are also found. Their switch type, power source and hold-last-state setting can be changed in Uconnect Settings. The fuses:
| Circuit | Fuse | Wire color | Location |
|---|---|---|---|
| Aux Switch 1 | F001A, 50 Amp | Pink/Dark Blue | Underhood PDC |
| Aux Switch 2 | F002A, 20 Amp | Pink/Dark Green | Underhood PDC |
| Aux Switch 3 | F003A, 20 Amp | Pink/Violet | Underhood PDC |
| Aux Switch 4 | F004A, 50 Amp | Pink/Beige | Underhood PDC |
| Aux Switch 5 (if equipped) | F37, 20 Amp | Pink/Brown | Underhood PDC |
| Aux Switch 6 (if equipped) | F20, 20 Amp | Pink/Yellow | Underhood PDC |
From the 2026 Ram 1500 Owner's Manual (Auxiliary Switches: Fuse And Wire Color Chart, pages 342 and 343), read November 1, 2026.
A kit of splices and heat shrink tubing is provided with the auxiliary switches to aid in connecting your electrical devices.
Ram electrical service at Elgin CDJR
Our Mopar service department services every Ram, wherever it was bought, including routine maintenance, Express Lane oil changes, brakes, tires, batteries, recalls and warranty repairs. If a fuse keeps blowing, or a safety, engine, transmission or steering system fuse has blown, the manual says to contact an authorized dealer; schedule a visit and tell us which circuit stopped working.
Our service department is open Monday to Friday 7 a.m. to 7 p.m. and Saturday 7:30 a.m. to 4 p.m. Elgin CDJR is at 1500 W. Lake St. (U.S. 20) in Streamwood. Get directions.
Schedule service online, or see our Ram service center page.
Ram 1500 fuse box FAQ
Where is the fuse box on a Ram 1500?
The 2026 Ram 1500 manual lists two: the underhood Power Distribution Center in the engine compartment near the battery, and the interior Power Distribution Center under the driver's side instrument panel. Trucks with auxiliary switches also have an auxiliary PDC in front of the main underhood PDC.
How do I get to the interior fuses on a Ram 1500?
Remove the two screws from the lower portion of the fuse panel cover, then gently pull both the left and right side of the cover to release the fastener clips. Reverse the steps to reinstall it.
Where is the Ram 1500 fuse box diagram?
The 2026 manual says a description of each fuse may be stamped on the inside of the underhood PDC cover; otherwise the cavity number is stamped there and matches the chart in the owner's manual.
Which fuse is the horn on a 2026 Ram 1500?
The 2026 manual lists the horn on cavity F40 in the underhood Power Distribution Center, a 20 Amp Yellow micro fuse.
Can I use a higher amp fuse?
No. The 2026 manual says to always use a replacement fuse with the same amp rating as the original and never one with a higher amp rating, because that may result in a dangerous electrical system overload.
What does it mean if a Ram 1500 fuse keeps blowing?
The 2026 manual says a properly rated fuse that continues to blow indicates a problem in the circuit that must be corrected, and that if the replaced fuse blows again, you should contact an authorized dealer.
Electrical problem on your Ram?
Book a visit with the Mopar service department at Elgin CDJR in Streamwood.
Sources
Fuse box locations, steps, rules and fuse charts are from the 2026 Ram 1500 Owner's Manual, read on November 1, 2026; other model years and equipment can differ, so check your own manual and the stamping inside your fuse box cover. Our services, address and hours are from our own website, checked the same day. Photo is illustrative.