I have a 1990 Lexus ls 400 my problem started when a head light blew, I bought new bulps put them in now my high beams and fog lights wont turn on the fuses are good under the dash and under the hood is there a relay that I'm missing and don't know about

check your bulb

Check your brake wires connections because it seems that some wires are inccorectly installed and need to to inspected and refixed

Well, the problem is that I dont know the reason, you should investigate. There could be issues with lamps (must get new) or electricity problems (must head to auto-service)

open the trunk and take down the liner inside the trunk and there are some 10 or 12 mm bolts there to take the tail light assembly off the car and you can change the bulbs from there.

Bad ground on the battery cable

Or shot alternator

I would inspect your wires at the starter. If you live up north then corrosion is bad, clean all wires going to starter. then clean wires to back of alternator. I seriously doubt that alternator is the problem, but if you remove it you can have it tested for free at most parts stores.

Shine your head lights on a wall either in your garage or outside wall and re-adjust your head light back to were you think you had them last. Use the high beam and the low beam settings and you will be able to beam the light were you think they should be. Common problem with most new vehicles now days, low beams don't seem to be bright enough.

Can some one tell me why dash lights flicke and dnt stay on i have a 93 ls 400

that would be the starter gone bad .needs to be replaced,it is a real job the first time around.

Hatterasnc,

You're alternator has gone bad and the vehicle was running on battery power. The "clicking" sound is your now dead battery that does not have enough power to turn over the starter. You might also want to check your power steering pump for leak. This is a know problem with early LS400s and will most likey be the cause of the alternator failure. I just dropped $1050.00 to fix the very same promblems you have.