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pdplot

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Many of our LBCs have only three or four fuses unless we upgraded. Snowbound, I started looking through my Subaru owners manual for, like, only the 3rd time in almost three years. OK. Take a guess how many fuses in a 2018 Legacy? See who can come the closest.
 
Are you looking for the total fuses in the cabin as well as the engine compartment?
Either way there's LOTS of fuses in todays modern cars.
 
My '98 Ford Explorer has way too many, seems like at least one for every single load, except for one that really hacks me off. There was a problem with a door switch that caused the interior lights to stay on, running the battery down. I found the fuse for the interior lights and would just remove it until I got the switch fixed. The problem: that same switch operates the transmission. What kind of engineer thought that might be a good idea? Probably the same engineer that thought it would be a good idea to make the light switch part of the door latch, buried deep inside the door and inaccessible. Ford's answer: "Just lubricate the switch." The problem with that is an hour shop labor just to get to it. They charge up to $100-200 per door depending on what they find inside and there is no way to know which of the 5 doors is causing the problem.
 
Same switch, multiple functions?? Sound like an accountant saying "Hey if we run both through this one we can save 50 cents by not needing two"...
 
75 total fuses?
 
I would have guessed 120 - but you said less than 100. So I'll guess 99.

Edit: after posting (not changing my guess), I became curious about my car (not a subaru). It has spots for 105 fuses, relays and fusible links. 19 of the fuse slots are empty, so it comes to 86.

Wow. I feel "protected".
 
P.S. If anyone can explain why the "Interference suppression capacitor" needs a fuse, I'd like to know. And extra credit if you can tell me what that is?? (I have no clue, but the same fuse also covers the coils (one per cylinder), so I assume it has to do with the ignition.)

Also, how about a "Diversity antenna", same circuit as the CD player. Or a "Longitudinal dynamics management" (same circuit as the "Towing hitch release speaker" - Huh?)

This has been fun... thanks!
 
37
 
My 2021 Kia has 95 fuses, so Im going to guess a 2018 has slightly less technology, so I'll guess 89 (and it is a guess).
 
89 is a good guess. 83 freakin fuses! I was amazed. I would hate to have an electrical problem in one of these cars. There must be 40 miles of wiring. I dimly remember the MG TD. As I recall. it was possible to start the car without the key just by changing the position of one fuse to between the terminals.
 
Popeye said:
P.S. If anyone can explain why the "Interference suppression capacitor" needs a fuse, I'd like to know. And extra credit if you can tell me what that is?? (I have no clue, but the same fuse also covers the coils (one per cylinder), so I assume it has to do with the ignition.)

Also, how about a "Diversity antenna", same circuit as the CD player. Or a "Longitudinal dynamics management" (same circuit as the "Towing hitch release speaker" - Huh?)

This has been fun... thanks!
Click to expand...

I suspect it is to cut down on "noise" in the entertainment system from the waves created by electricity moving through the wiring system. I had a capacitor attached to a generator originally in one old car that was supposed to do that.
 
No vehicle you have to depend on should have more than four fuses!



...I'll crawl back under my Solstice Rock now...
 
pdplot said:
89 is a good guess. 83 freakin fuses! I was amazed. I would hate to have an electrical problem in one of these cars. There must be 40 miles of wiring. I dimly remember the MG TD. As I recall. it was possible to start the car without the key just by changing the position of one fuse to between the terminals.
Click to expand...

Remember touring the BMW factory in SC. They put the wiring harness in an oven before installing, to soften the insulation so it is flexible enough to install. Yow.

(As an aside, I recommend visiting the museum and factory if in the area. Some nice roads on the way there as well!)
 
Years ago I had a Fiat 124 coup. While I was driving one day I noticed that all of my gauges were no longer working. I pulled over and shut down the engine to investigate. The first place I checked was the fuse panel inside the car. All fuses were fine, so I decided to look further when I got home. When I tried to start the car the starter would not crank. I went back to the fuse panel to again check the fuses and everyone was OK. I got a push start and it started right up so I drove it to the dealer. Within a few minutes the service guy came out and told me I had a blown fuse.
I told him that’s the first thing I checked! He then informed me that there were a “couple” of fuses that didn’t fit in the fuse box so Fiat put them randomly under the dash. What the heck?
It also made no sense why they used the same fuse for the gauges AND the starter.
 
Ignition wire fuse. Bet it was a pink wire.
 
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