Guide / Fuse types
Automotive Fuse Types
Identify the fuse style and amperage before buying replacements or pulling multiple slots.
Confirm fuse number, location, and amperage on the fuse cover, owner manual, or verified service data for your exact trim.
Diagrams and printables
Fuse-grid worksheet
Common box locations
Safe check flowOriginal layout worksheet
Common circuits to check
| Common circuit | What to verify | Safe note |
|---|---|---|
| Mini blade | Match the exact fuse number, position, and amperage from the cover label or owner manual. | Replace only with the same amp rating. If it blows again, diagnose the circuit instead of upsizing. |
| ATO/ATC blade | Match the exact fuse number, position, and amperage from the cover label or owner manual. | Replace only with the same amp rating. If it blows again, diagnose the circuit instead of upsizing. |
| Low-profile mini | Match the exact fuse number, position, and amperage from the cover label or owner manual. | Replace only with the same amp rating. If it blows again, diagnose the circuit instead of upsizing. |
| Maxi fuse | Match the exact fuse number, position, and amperage from the cover label or owner manual. | Replace only with the same amp rating. If it blows again, diagnose the circuit instead of upsizing. |
| Cartridge fuse | Match the exact fuse number, position, and amperage from the cover label or owner manual. | Replace only with the same amp rating. If it blows again, diagnose the circuit instead of upsizing. |
| Relay | Match the exact fuse number, position, and amperage from the cover label or owner manual. | Replace only with the same amp rating. If it blows again, diagnose the circuit instead of upsizing. |
Safe fuse check steps
Turn the vehicle off and remove the key before opening the fuse cover.
Photograph the cover legend so every fuse goes back into the correct slot.
Pull one fuse at a time with a puller; inspect the element or test continuity.
Replace only with the same amperage and style. Never install a larger fuse.
If the new fuse opens again, stop replacing it and inspect the circuit for a short or overloaded device.
Common questions
Can I use a higher amp fuse?
No. A higher amp fuse can overheat wiring before it opens. Use the same amp rating listed for the circuit.
Why does the same fuse keep blowing?
A repeated failure usually means a short, water intrusion, damaged accessory, or overloaded circuit. The fuse is protecting the wiring.
Is this an OEM fuse diagram?
No. It is an original reference worksheet. Use the vehicle label or owner manual as the final source.