Mostly the high beam indicator goes out immediately after installing the led bulbs.
What happens is that indicator uses the element of the halogen light bulbs low beam to active the high beam indicator. Being LED only allow current to flow one way. The indicator will not work.
We have a few threads if you search for them showing ways to make your high beam indicator work again if the bulbs are the issue.
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7 3rd gens listed in the build thread (2 are parts mobiles)
Build Thread:
https://www.toyota-4runner.org/3rd-g...os-builds.html
Brillo's Bucket Fluid Ex changer:
https://www.toyota-4runner.org/3rd-g...ml#post3358086
Sparks Plugs Wire and Coil Information:
https://www.toyota-4runner.org/3rd-g...on-5vz-fe.html