mickstix25 Posted April 1, 2008 Share Posted April 1, 2008 I have a 92 ls 400 and the trac warning light used to blink now it just stays on Im sure the blinking was code but didnt know how to read it now it just stays on looking for a few answers please help Quote Link to comment Share on other sites More sharing options...
micadevcon Posted April 2, 2008 Share Posted April 2, 2008 I have a 92 ls 400 and the trac warning light used to blink now it just stays on Im sure the blinking was code but didnt know how to read it now it just stays on looking for a few answers please help Verify your CHECK ENGINE indicator bulb is not burned out, it should light up when the car is started, and is located next to the TRAC light inside the speedometer. I had the same problem and couldnt figure it out, as there seemed to be no codes. But since the CHECK ENGINE indicator was out, I couldnt read the codes! www.lexls.com has a guide on reading the codes from your computer. Quote Link to comment Share on other sites More sharing options...
Jify Posted April 5, 2008 Share Posted April 5, 2008 Had the same problem with my '92 LS400. Believe it or not, the fix came when I threw new brake pads in all around. The TRAC light shows up when the TRAC system can't build up the required pressure (mechanical or fluid problems I'm guessing?). Check your brake fluid reservour, is it full? Mine was low with old brakes, threw in new brakes, Bang! No more problem! Also.. does the TRAC light show up AS SOON as you start the car? Or after you press the brake about 6-10 times, that could be another indication. I don't believe mine was ever on from the get go, but came on after driving just a little down the street. Hope that helps! Quote Link to comment Share on other sites More sharing options...
Nickhere Posted April 5, 2008 Share Posted April 5, 2008 My 92 had the "TRAC OFF" light and a "Check Engine " light, pulled a code 25 replaced both O2 sensors. All is well. Quote Link to comment Share on other sites More sharing options...
wwest Posted April 5, 2008 Share Posted April 5, 2008 I have a 92 ls 400 and the trac warning light used to blink now it just stays on Im sure the blinking was code but didnt know how to read it now it just stays on looking for a few answers please help The traction control system in the '92 is not only totally USELESS it can easily and quickly get you into a hazardous situation. I adopted the practice of manually turning it off just as soon as I started the car. Just ignore the indicator or remove the bulb. Or if you insist, do a brake fluid flush and that will often solve the problem. But be sure that whoever does the flush is aware of how to flush the TC assembly. Quote Link to comment Share on other sites More sharing options...
Jify Posted April 5, 2008 Share Posted April 5, 2008 I have a 92 ls 400 and the trac warning light used to blink now it just stays on Im sure the blinking was code but didnt know how to read it now it just stays on looking for a few answers please help The traction control system in the '92 is not only totally USELESS it can easily and quickly get you into a hazardous situation. I adopted the practice of manually turning it off just as soon as I started the car. Just ignore the indicator or remove the bulb. Or if you insist, do a brake fluid flush and that will often solve the problem. But be sure that whoever does the flush is aware of how to flush the TC assembly. I can 100% agree. Highway speeds + passing + ice + TRAC = nasty 110km/h 360 degree spin going down the highway. I now manually shut the TRAC off as soon as I hop in my car! (but it was handy for low speed driving..) :) Quote Link to comment Share on other sites More sharing options...
mickstix25 Posted April 6, 2008 Author Share Posted April 6, 2008 The light shows up as soon as I start the engine. I changed the front brakes and rotors but not the back the front was severly worn. So maybe they need to be bled or I need to just change the back. Thanks guys for your suggestions and I'll keep you posted on the progress. Quote Link to comment Share on other sites More sharing options...
Jify Posted April 6, 2008 Share Posted April 6, 2008 Good luck! :) Quote Link to comment Share on other sites More sharing options...
wwest Posted April 7, 2008 Share Posted April 7, 2008 A descretly placed small piece of black electrical tape is the best solution overall. Quote Link to comment Share on other sites More sharing options...
Rick George Posted May 2, 2008 Share Posted May 2, 2008 i also have the traction control light issue. tried all the above. still there. on top of that and im not sure if its related but the Hand Break light comes on and stays on even when not engaged.. sometime it goes of... and other times its always on any ideas? Quote Link to comment Share on other sites More sharing options...
eatingupblacktop Posted May 2, 2008 Share Posted May 2, 2008 I'm going with jify & ww on this one. Turn it off. Quote Link to comment Share on other sites More sharing options...
Rick George Posted June 18, 2008 Share Posted June 18, 2008 slightly over filled the break fluid... all fixed.... very unusual Quote Link to comment Share on other sites More sharing options...
John2 Posted October 24, 2008 Share Posted October 24, 2008 so mick, what was the solution? i now have the same problem. trac light on after a bit of driving. code 19- accum. pump cyclying too much. fluid is fine, etc... Quote Link to comment Share on other sites More sharing options...
zenlama Posted October 31, 2008 Share Posted October 31, 2008 I had trac light coming on intermittently, Lexus Dealer said it was sensor(?). Spent about $400.00 to have it fixed. That was a year ago. It is now doing the same again. I'm going to check the fuse, as recommended in another post, and get new brake pads. Also. turn off the tracking as soon as I get in the car. Quote Link to comment Share on other sites More sharing options...
John2 Posted November 5, 2008 Share Posted November 5, 2008 interesting, zen... have you pulled the code? i paid justask.com and a lexus tech there for an answer and he said they many times end up being the accumulator leaking. this is for code 19 troubles. Quote Link to comment Share on other sites More sharing options...
sandman28 Posted July 11, 2009 Share Posted July 11, 2009 I have a 92 ls 400 and the trac warning light used to blink now it just stays on Im sure the blinking was code but didnt know how to read it now it just stays on looking for a few answers please help Same problem with my 1993 LS400 - Trac light stays on. Eventually "check engine light" came on. Took it to my local Lexus dealer. Said I needed new pre-catalytic oxygen sensors, suggested also replacing post-catalytic sensors. I also had a crack in my EGR exhaust pipe. He explained that with bad sensors and bad EGR, the Traction control system will not function properly. I replaced all four sensors and EGR pipe, no problem in two years now. Very hard to replace EGR pipe. Lexus wanted to pull the transmission to replace it but found a mechanic who wedged the transmission out of the way enough to replace the pipe. Dealer said I could drive with both problems just would not get optimal fuel economy. Hope this helps. Other common problems LS400s have are with time and temperature display "bleaching" out and with speedometer instrument cluster malfunctioning. Had both problems resolved with repair services advertising on Ebay. Quote Link to comment Share on other sites More sharing options...
Eddieray23 Posted May 22, 2019 Share Posted May 22, 2019 I have a trac light on as well on my Lexus SC 400 1992 I checked the O2 sensors not the problem but it only comes on as soon as I start driving ABS light is off do anyone know the answer to it please reply Quote Link to comment Share on other sites More sharing options...
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