Where is the fuse box for the 1992 lexus LS 400

Check for a fuse if you didn't already.

One of the two. 1 is not making good contact in the two ends. 2 broken wire

The first thing to check would be the compressor, check all fuses and see if compressor is running.

i can tell you that most air bag systems develop a leak in the bags and the problem is not fixed inturn the air compressor runs so much to fill leaking bags that it over heats and destroys the compressor. most of the time the compressor fuse will blow, so check fuses first and then compressor. I have never seen a 1992 lexus with air bags.

be sure to have battery disconect before you tray, star by unbolting fuse bow from inner fender and turn it arround so you can see it from bottom, you will found your fuse is bolted to supply wires, ther you have unbolt an bolt new fuse, reverse removal and you set.
Good luck

secondary fuse box, sounds like the assesory fuse is blown

Here is a diagram that should help you out.

du maste lexus aterforsaljare ga till delar department. carry din identifiering och bilregistrering serienummer de kommer att ha dig en gjort.

under the steering column on the left there is a fuse box there are three metal fuses larger than the normal fuse...there is a tiny hole it is the reset button for the theft detection...check the manual...should be around page 194 i think...you just stick a pin into the hole and should reset.you migt need the alarm code to release the lock on te engine.depends on what type of alarm it has installed...

remove black plastic relay cover in plastic underhood fuse box and activate relay with a very small screwdriver and ignition on. If starts, obviously the starter is fine, if not the starter is indeed bad and needs replacement so hold onto your ankles cuz it's gonna hurt.

check under ur hood there is a relay box for that