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aaron anderson Posted on Dec 21, 2013
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Lexus 1998 gs 400 dash light went bright then dimmed with a mechanical noise from the engine

1 Answer

windsorguzzi

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  • Master 796 Answers
  • Posted on Dec 21, 2013
windsorguzzi
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It sounds like the alternator packed in. Get it checked out.

5 Related Answers

Anonymous

  • 4 Answers
  • Posted on Dec 28, 2008

SOURCE: 1998 Lexus gs 400 vsc light stay on -solve this-

does it go off if u un-plug the switch? if u un-plug it and it goes out I think that you have a bad switch. hit a gunk yard and pull one out for 10$..Matty

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Anonymous

  • 1 Answer
  • Posted on Feb 14, 2009

SOURCE: 1994 lexus ls 400 problem with dash board light

Try rotating the ignition switch slightly after you turn it to on and see if the lights come on...had the same problem and changed the switch fixed the problem...

mkv0525

Mike Vincent

  • 358 Answers
  • Posted on May 27, 2009

SOURCE: 92 lexus ls 400 check engine and traction control light came on at the same time, 92 lexus ls 400.

the track off light will come everytime yhe check engine light comes on. this is normal. you need to have the check engine light checked first.you can go to your local parts house they will scan it for so you at least see what area you problem is in and then you can start from there. let me know lf you find out youe engine codes.

Anonymous

  • 10865 Answers
  • Posted on Aug 22, 2009

SOURCE: lexus gs300 dash lights ,sunroof,gear lever,windows, not working

hello freddy - the good news is that your lexus has a self diagnosis system built into it. this is what you need to do.

drive to an auto zone or similar autoparts store and have them put your lexus on their computer to scan for trouble codes. they offer this as a free service. with a little luck this scan will isolate the problem and the fix will be quick and easy.

if this doesnt fix it for you get back and let me know what codes popped up.

here is a link to the lexus trouble codes so you will have added insight. good luck.

http://www.troublecodes.net/Lexus/

DRACO A5OG

Jim Chang

  • 22 Answers
  • Posted on Jan 26, 2011

SOURCE: engine light, vsc, vsc off come on. code P0121 and P0120

It is your Throttle Position Sensor (TPS), the black component on the side of your Throttle Body normally on the right side as you look from the front of your engine.

Take the **** of a screw driver and tap the TPS, while the car is on, you might notice a fluctuation. tapping again may not yield a response but it is prone to jolts.

Before replacing it, try to check the resistance with a Digital Volt Meter on the terminals. You can check Haynes Book at a local supply store that might have it or go to a book store that carry the books. Each series of Lexus/Toyota have there own value. If the values are off, loosen the mounting screws and turn the TPS clock wise until you get the values needed. A slight movement is all that is needed or tolerated so take care not to over adjust or the fix will not work.

If you want to just replace it then not where it is positioned and place the new one starting at a counter clock wise postion then place the new TPS and rotate to exact position the old one was and then tighten down. Caution it is best to check the resistance values to insure proper adjustment.

Hope this helps

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1998 Lexus gs 400 vsc light stay on -solve this-

does it go off if u un-plug the switch? if u un-plug it and it goes out I think that you have a bad switch. hit a gunk yard and pull one out for 10$..Matty
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