After new tires installed, CHECK VSC, TRAC OFF, and CHECK ENGINE lights on.
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I had no error codes prior to having new Michelin tires installed at Sams Club. Immediately after, CHECK VSC, TRAC OFF, and the RED EXCLAMATION point lights came on. Had a local repair shop read codes. Indicates YAW RATE SENSOR CALIBRATION, STEERING ANGLE, and several other codes. Google search indicates other owners having similar problems after tires installed, alignments, etc. that only required a Zero Point Calibration. Local repair shop was unable to reset the warning lights using their equipment. Could be a bizarre coincidence where an oxygen sensor or mass flow has gone bad, but seems more likely that one of the wheel sensors might have been damaged during tire installation. No Lexus dealer in my city (Pensacola), so stuck with local mechanics.
RepairPal Certified shops can diagnose and repair your 2004 Lexus LS430. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Properly equipped auto repair shop should be able to do a full scan test which will include test drive so live sensor data can be viewed on scanner... I too suspect wheel speed sensor/wiring damage... Live data test drive will show output signal from each sensor... Use the > Find a Shop feature on this page to locate a capable repair shop in your zip code... (ALL 4 tires must be *same size* @ recommended psi)
Thanks. I have an appointment tomorrow morning with Evans Automotive... a local shop recommended by RepairPal. Brand new full set of Michelin Premiere tires installed at Sams Club two weeks ago... all the Lexus-recommended size. Hopefully this won't be a major issue. Hard to spend big $$ on a 2004 vehicle with sharply declining market value. Otherwise, this 2004 Lexus LS430 is probably the nicest car I've ever owned or driven... even at 13 years old. An amazing vehicle that runs like new at 138,000 miles.
Bad Yaw Rate Sensor. Lexus dealer wanted $1200 for just the part. Another $400 in labor. Found a used Yaw Rate Sensor on eBay for $20. Installed by local mechanic for $120. Still working great. No more problems.
Thanks for the response I just want to make sure we have the same problem. When I turn my car on there are no lights at all when I put it into drive about 5 seconds check vsc light and vsc off light comes on. Also did they use a scan tool to find out the bad sensor?
Some time has passed now. I honestly don't remember the exact timing and sequence of warning lights. The closest Lexus dealer is over an hour away in Mobile, AL. I found a local auto shop that specializes in Lexus repairs. Yes... The shop used a scanning tool to determine the problem was a bad Yaw Rate Sensor. -- Once I knew the exact part number, I just plugged the part number into eBay and a bunch of them popped up at various prices... some as little as $14. I chose the one taken off a newer vehicle on the assumption that a newer part was more likely to be good and would probably last longer. This same Yaw Rate Sensor was installed on a number of Toyota/Lexus vehicles. I think mine came off a 2009 Toyota 4-Runner... works great on my 2004 Lexus.
Thanks. I have an appointment tomorrow morning with Evans Automotive... a local shop recommended by RepairPal. Brand new full set of Michelin Premiere tires installed at Sams Club two weeks ago... all the Lexus-recommended size. Hopefully this won't be a major issue. Hard to spend big $$ on a 2004 vehicle with sharply declining market value. Otherwise, this 2004 Lexus LS430 is probably the nicest car I've ever owned or driven... even at 13 years old. An amazing vehicle that runs like new at 138,000 miles.
Yep, they good vehicles!! .. Good luck with the repair! .. Let us know the outcome.