Finding Your 1998 Jeep Wrangler Fuse Box Diagram
The 1998 Wrangler has two separate fuse boxes, and that is the first thing most people miss. One is under the dashboard on the driver's side panel. The other is a larger power distribution center under the hood near the battery. If you are only looking in one spot, you are going to waste a lot of time. I spent about three hours on a friend's YJ once chasing a dead radio. Every fuse in the dash panel tested good. Turns out the radio circuit was fed through a fuse in the under-hood box, and it had blown but looked intact because the metal strip inside was just partially melted. A visual inspection would have missed that completely. You need a multimeter.
Where to Find the 1998 Jeep Wrangler Fuse Box Diagram
The official diagram is printed on the back of the cover for both fuse boxes. The dash panel cover has a small printed chart. The under-hood PDC cover has a much more detailed layout. Remove the covers and flip them over. That is your first reference. For a full printable version, you can grab the factory service manual from the Chrysler Group LLC archival site or purchase a reprint from Mopar directly. The Haynes manual for 1997-2006 Wranglers also includes a complete fuse layout with amperage ratings. It runs about twenty dollars and is worth it if you do any work on these vehicles.
How the Two Fuse Boxes Are Organized
The under-dash panel handles most accessory circuits. You will find fuses for the radio, turn signals, hazard lights, wipers, horn, and the ignition switch feed. These are standard automotive blade fuses in 5, 10, 15, and 20 amp sizes. The layout is relatively straightforward if you know which side of the panel each column controls. The under-hood power distribution center is where things get less intuitive. This box handles high-current circuits: the A/C clutch relay, main ignition feed, fuel pump, chassis ground distribution, and the starter solenoid trigger. Many of these use Maxi fuses instead of the small blade types. The Maxi fuses are rectangular and significantly larger. If you try to seat a regular blade fuse in a Maxi slot, it will not fit and you will strip the terminals trying to force it. One thing the factory diagram does not make obvious is that several circuits share a common ground point behind the left kick panel. I ran into this when the headlights and wipers both died at the same time. Neither fuse was blown. The ground strap had corroded to the point of high resistance. Cleaning the grounding surface with sandpaper and tightening the bolt fixed it immediately. Replacing fuses would have been a waste.
Get the Full Details
Reading the Diagram Correctly
The diagram uses a column-and-row system. Each position on the fuse panel corresponds to a numbered slot on the diagram. The number matches the circuit description in the legend. For example, position 17 in the under-dash panel is the left turn signal. Position 18 is the right turn signal. They sit next to each other on the panel and share the same amperage rating, which is why a simultaneous failure usually points to something upstream like the turn signal flasher relay rather than two blown fuses at once. The under-hood box diagram works the same way but includes relay positions as well. Relay 1 is the A/C clutch relay. Relay 2 is the horn relay. Relay 3 is the fuel pump relay. The fuel pump relay is mounted in the PDC and shares the same socket area as its corresponding Maxi fuse. When that relay fails, which it does fairly often on these years, you can sometimes wiggle the socket and restore contact enough to get home. It is not a repair, just a workaround.
Common Pitfalls
Don't assume a blown fuse caused by a short will stay blown if you just replace it and drive away. I had a customer who kept blowing the 20 amp fuse for the cigarette lighter circuit. He replaced it four times over two weeks. The problem was a frayed power cord from a phone charger that had worked its way loose inside the dash trim. The bare wire was touching the metal bracket behind the panel. Until you trace the actual short, every replacement fuse is just throwing money at the problem. Another thing nobody tells you: the 1998 Wrangler uses a fusible link for the main battery feed to the under-hood box. It is located on a thick gauge wire between the battery and the PDC. This is not a fuse you can see or access easily. If your entire vehicle goes dead and all fuses check good, that link may have opened. It is a one-shot link. You cannot reset it. You have to splice in a new one with properly rated Anderson connectors or crimp sleeves. Using a regular fuse in its place is dangerous because it will not protect the wiring correctly.
What the Diagram Does Not Show You
The factory fuse diagram does not indicate wire colors or connector pinouts. If you are doing anything beyond swapping a blown fuse, you need the wiring schematic from the factory service manual. The diagram on the fuse box cover is a quick reference, not a complete guide. It tells you which circuit is in which slot but not how that circuit routes through the vehicle. For that level of detail, the Chilton or Haynes manuals are sufficient for most owners. If you are doing serious electrical work, the factory electronic troubleshooting manuals from the period are the real resource, but those are harder to track down and tend to cost more online. A decent aftermarket wiring diagram subscription like ALLDATA or Mitchell1 will also have the 1998 Wrangler coverage if you have access through a shop or can subscribe individually. The bottom line is that the fuse box covers give you enough information for basic troubleshooting. Most problems on these vehicles come down to a single blown fuse, a bad ground, or a failing relay. When you go deeper than that, you are going to need the full schematic anyway. Just make sure you check both fuse boxes before you start pulling apart dash panels.
