I think the headlight fuse is blown for my 92 geo metro, but the fuse box doesnt have a cover anymore so i cant tell which fuse to replace. can u help me?

93/92 means year 1992 or 1993 and not sure?
the geo metro user guides can be found googling or on ebay used
or here. lost it out of glove box sure,
the books were paper then ,no digital documents until 2000 year.
GM sold this car, it is badge'd product, maker is Suzuki Swift./
under hood sticker see Suzuki name on it. GM is just a badge.
no engine size told and that can make fuse boxes very different on any car..
here is some free links to things GEO metro and the swift.
http://fixkick.com/swift

Lp2 and L72 engines, glove box RPO GM coded,
1.0L or 1.3L respective.
the 1.0L gets 50MPG, amazing if not flogged hard.

https://eautorepair.net/Marketing/Default.asp

my work mate had one and had to sell it, as every one tailgated him at 60-mph, but 1.0L cars in USA are rare as chicken lips.

the colors of the fuses are amps coded. so it not lost the color is it.
ATC fuse rules, and tables.

this looks alive

https://geometroforum.com/guides-how-to-f24/



https://www.onlymanuals.com/geo/metro/


google for manuals for sure engine size not told.
pdf seen are persons that hand scanned the manuals 30 years later.

Look at 1998 geo metro fuse box location Google Search

http://geometroforum.com/site/

This is probably the cheapest way to find out:

 

http://cgi.ebay.com/ebaymotors/GEO-TRACKER-SIDEKICK-FUSE-BOX-COVER-89-98-_W0QQcmdZViewItemQQhashZitem4aa8844be1QQitemZ320654822369QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

you may have a blown fuse,check the fuses in the fuse box under the hood also check the wiring for loose connections also the connector plugs.....hope this helps.....cheers

the appropriate fuse is blue (15A) and is third or fourth from the side of the car (the narrow end). Look at the fuse box cover.

Most likely the multifunction switch is defective.

I have the same problem, but haven't fixed it yet. However, I have found great information at the following two links (The first being the most concise).

http://www.suzuki-forums.com/suzuki-swift-geo-metro-forum/22531-headlight-dysfunction-91-geo-metro.html
http://autoforum.classifieds1000.com/Geo-Metro/geo_metro_headlight_problem

get the altenator tested also get the battery load tested