TONY1022

Ref : 98 LS 400

Gentlemen,

For a few weeks now..my info display on the dashboard lights up and reads HEADLIGHT LEVELING. I am at a lost here because for the longest I have had the car , never seen this warning.
Hopefully you guys can come to my rescue..I refuse to think of taking the car to the Lexus dealer.
Your input will be greatly appreciated.

Tony.

RugbyDad

Check your ballast connections for the hid headlights. Since I can't remember exactly which harness it is, check all the connections on the back of the headlight housing. It's the beefiest harness.

Iirc, which I just said I don't, on the drivers side housing, to the far left is the high beam harness. To the far right is the low beam harness. In between these two harnesses is two more harnesses. One points toward the low beam and is some kind of running light for the low beam. Just below it is the beefy ballast harness.

sha4000

iTrader: (1)

A quick way to check if your leveling system is working is to put your headlights on auto and turn your car on at night and see if your headlights move up and then back down. This is your leveling system doing a check. If your headlights don't move then there is something wrong with the leveling system. Either the connectors worked their way loose or the sensors are damaged or out of alignment. Have you hit any big potholes lately?

Here's my old thread.
https://www.clublexus.com/forums/ls4...ng-system.html

Here's a page with a description of how the sensors work.
http://www.evansweb.info/2009/11/23/...sensor-repair/

TONY1022

Thanks to u guys Rugby and Sha..what can one say about Sha..he has been here a while and always been most helpful.

I'm going to ckeck my ballast connections tomorrow on the dr.side and if that doesn't work I'll do the passenger side monday. Not sure if there's a ballast there as well.Let's hope I get a positive result',
I'd be back here ASAP to show my appreciation either way.
Later

sha4000

iTrader: (1)

Your welcome , let us know what you find.

alien1974

Have you checked the sensors in the right hand side front and rear wheel arches? i spray mine with wd40 every so often as a preventative measure