1998 UCF21 HID Headlight Flicker *Please Help* - Club Lexus Forums

Go Back   Club Lexus Forums > Lexus Model Forums > LS Models > LS - 1st and 2nd Gen (1990-2000)
Log In 

1998 UCF21 HID Headlight Flicker *Please Help*

Thread Tools Search this Thread
Old 06-11-14, 03:18 PM   #1
Driver School Candidate
Trader Score: (0)
Join Date: Apr 2009
Location: SK
Posts: 27
Exclamation 1998 UCF21 HID Headlight Flicker *Please Help*

I have a 1998 UCF21 with the factory D2 HID low-beam. The light has begun flickering on the highway especially in bumpy spots and it will always starting to flicker during a left turn in an intersection or otherwise.

The lights will flicker until I turn them off and on again. They will then stop flickering until I either make another left turn or go over any sort of small bumps / mildly rough highway spots.

If I don't turn them off, often one headlight will go out completely.

The headlight on the right ALSO seems to not be leveling correct. It points about 6 feet too high when up against a wall and if you tap on the headlight in jumps up and down.

I am currently looking at replacing the headlight, ballast and leveling motor. Any help or recommendations would be appreciated. All searching has been pretty useless and I've been a forum lurker for over a decade.
empower is offline   Reply With Quote
Old 06-11-14, 10:05 PM   #2
Trader Score: (1)
Join Date: Oct 2012
Location: MA
Posts: 189

Im thinking the flickering is a loose connection. I had my lights flicker once when I hit a pothole.

Make sure the connection on the bulb is good and tight.

Does your auto level work at all? do you notice the level change when braking or accelerating?

my level sensor broke in the back and made the headlights aim to the sky.

BUT..... if it moves when you tap on them, it sounds like the leveling motor detached from the reflector.

take out the leveling motor and see if it is still attached. Im willing to be the motor is not connected to the reflector bowl.
rick1987 is offline   Reply With Quote
Old 06-12-14, 03:52 PM   #3
Lexus Champion
Trader Score: (5)
timmy0tool's Avatar
Join Date: Sep 2008
Location: 909/626/714, SoCal
Posts: 3,318
Send a message via AIM to timmy0tool

first the bulb, you should replace it. a flickering HID bulb means it's going bad and has reached the end of its life. the D2R bulbs on my IS300 did the same thing, and after removal, i found cracks on the glass of the bulb! the ballasts hardly ever go bad unless shorted or shocked.

as for the leveling system that's a separate issue. check the connections first before changing the motor. it could just be loose. does the other headlight leveling system work fine?
lateral Gangsta
timmy0tool is offline   Reply With Quote
Old 06-13-14, 11:44 AM   #4
Lead Lap
Trader Score: (0)
Greg5OH's Avatar
Join Date: Oct 2013
Location: Detroit/T.O.
Posts: 524

is light output itself cutting in and out or is th ebeam pattern shaky? My light output is constant but my left one is super jittery and very annoying. My right one was even worse and turned out the bottom outer adjuster was broken, so the whole housing was able to move in and out an inch freely. Remedied it by running an m4 nut down on it. Probably same deal on the other side, broken adjuster.
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
auto couture magnifique
Greg5OH is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
HID headlights flickering fastegg LS - 1st and 2nd Gen (1990-2000) 10 03-26-14 06:11 PM
06 gs headlight flickering RooRa GS - 3rd Gen (2006-2011) 15 09-13-12 11:19 AM
Hid bulb flickering GS2100 GS - 3rd Gen (2006-2011) 6 01-08-12 08:41 PM
Slight flicker of lights GoodRevs ES - 1st to 4th Gen (1990-2006) 25 03-18-10 06:41 PM
headlight flickers off Amalan GS - 3rd Gen (2006-2011) 6 12-28-09 06:20 PM

hid, jittery, light

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 11:25 AM.

Copyright © 2000-2015 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS