92SC400Boy

Thanks Jbar - compressor w/ clutch replaced within the last year with a rebuilt unit. Guy who installed it and another mechanic say it checks out fine. Any other ideas? ← ← Thanks a lot Teelias! will give that a try and let you know. Can you please tell where an aftermarket expasion valve can be found?

'92 SC400, 120k miles, all options + cromed spokes and integrated K40 radar detection (was state of the art back in '92, still not bad!). I'm the second owner and have had it for about 7 years. Paid about $16.5k as I recall. Everything works at this point. Original owner put about 60k miles on it as I recall. Bone stock except K&N air filter and upgraded window tint. I've gone through/replaced: ps pump, 2 alts., 2 A/C compressors, lower front control arms, cd changer, etc. It had a major service done at dealer just before I got it - like $3k worth as I recall - they did the timing belt, all fluids, etc., etc., etc. Previous owner probably overpaid by $1.5k+ for that one, but I was glad to have it all done. My daughter drives it primarily now, to and from high school and on errands. Current issues: (1) trac light coming on intermittantly after driving for 10+ miles, then it stays on until car is shut off again. No other idiot lights and no performance problems noticeable. (2) A/C light blinks and compressor cuts out at the same time - intermittant problem. Compressor and clutch have been replaced within the last year or so and check out fine. A/C will reset by turning off and back on, sometimes two or three times, then work perfectly. (3) Guage needle lights failing Overall impression of car - great ride, super high quality, but with a few known issues for which Lexus should have stepped up, such as the headlight lenses fogging prematurely. Also, relatively expensive to maintain and more has broken than I hoped since I've owned it. Was hoping for a Toyota Camry on steroids when it came to maintenance - like will need next to nothing for years and years. Not! Still, overall, a great value - I've been able to drive a $45k+ premium luxury car for years and probably have around $21k all in into it by now.

also a "hack" may be to disconnect the battery & re-connect... this may re-set the system as well. know it works w/ p-cars w/ obd. this may be only a temporary solution. but like forementioned... maybe the trac threw an error code & simply needs to reset. BOL ← Another suggestion to reset possible code alert - pull the trac 7.5 fuse under the hood, leave it out for a while (dunno how long), then put it back in. That should reset any coding issue, heh? Works great on my Mazda that keeps giving me a check engine light, coding for excessing exhaust gas recirc.

Thanks Jbar - compressor w/ clutch replaced within the last year with a rebuilt unit. Guy who installed it and another mechanic say it checks out fine. Any other ideas?

92 SC 400. When A/C light blinks, the compressor cuts off and unit blows just air. It will reset by turning the unit off and on. Code is 21. Do I need another climate control panel or what? If so, are used ones a good bet? Found a used parts dealer who says he has a connection in California that rebuilds them. He sells it for $275 with a one year warranty. How hard is it to change this panel out?

I've got a '92 SC and have the same problem - the "trac" idiot warning light keeps coming on. Freakn' manual says "take it to dealer" without any indication of what the problem might be. Dealer wanted $105 just to diagnose - damn, I HATE DEALERS. Fuses all fine. Any other suggestions? I've got the optionaly traction system, but don't think this is related to that system? Thanks