1999 LS400 the vsc check engine light came on. Is this a serious problem? And how to fix it?

TAKE TO NEAREST ADVANCE OR AUTOZONE PARTS STORE. ASK THEM TO CLEAR CODES WITH THERE COMPUTER. IT IS A FREE SERVICE THEY OFFER. I ALWAYS TIPPED THE GUY THAT DOES IT, CONSISERINGMOST REPAIR SHOPS CHARG BETWEEN $125-175.00 JUST TO TELL YOU WHATS WRONG.

VSC Vehilcle Speed Control (cruise control) On some cars the cruise will not work if there is a Check Engine Light on.

Toyotas and Lexus cars have some unique feaures. If your fuel cap is loose or the O2 sensors on the exhaust are faulty this results in an emission problem and the engine computer unit (ECU) engages the check engine light and disables the VSC (the VSC light comes on to warn you that it has been disabled). However you have p0500 code which says the car has no speed sensor signal. The seed sensor is located on the side of the final drive from the transmission and its job is to measure the speed of rotation of the output shaft. The ECU will compare the signals from this shaft along with the speed sensors in the wheel hubs. If there is a difference between these signals the VSC is engaged to apply braking effort to which ever wheel is slipping (running faster) than the other or that the transmission speed sensor would warrant.
So you either have an emission fault has fed back to the VSC and speed sensor missing (p0500) condition, or you have a faulty sped sensor which has tripped the VSC light and in turn the CEL.
Check your fuel filler cap is on tight, turn radio off and disconnect the negative lead to the battery for 5 minutes (this should clear the ECU memory of the code error). If p0500 error and CEL and VSC lights come back on then check the electrical connection to the speed sensor. Ensure it is clean and making a good contact, check the wiring for continuity. If everything else looks good consider changing the speed sensor.

Hello. Many times the check engine light and VSC and trac are all on due to one or more bad sensors as opposed to any serious trouble. Begin by having your car's computer scanned. AAMCO transmission shops now offer a free scan as do some auto parts stores. Begin with that. Joe
please rate my answer as very helpful thanks.

I have a a 99 gs 300, check engine light is on as well as the vsc light. What is that and needs to be to done to fix it.

Yes. Did you recently have the oil changed?Air Filter? Alot of techs accidentally disconnect hoses to Air Filter housing. Check hoses, Oxygen sensor could need replacement. Try reseting the sensor lights by disconnecting the negative (-) battery cable for 20 seconds then reconnect and start car. Lights should be reset. If they come back on take to dealer or to AutoZone where they can do a free analysis of engine codes

The check engine light ,trac control light and VSC light are on. Does this normally represent a serious problem on a 2004 toyota solara?

Doubtful it's an intermittent electrical problem. Far more likely you've got a wheel speed sensor issue. Since VSC gets all it's information from the ABS system, start by pulling the trouble codes. I bet you'll see an ABS code. Read this post


ABS What are ABS brakes Ricks Free Auto Repair Advice

My 2000 Lexus GS 400 just had the VSC/VSC off light and the check engine light come on. I would have to push the accelarator peddle all the way down to get it to go. Took it to the Toyota dealer and the code pulled up as the Throttle Position Sensor was out. Purchased one and having it put in. Will update if this fixes the problem.

After having my oil changed, the next day the trac off light and vsc light came on and don't go off...can you tell me how to get them off? HELP