The check engine light, VSC light and Trac control

Disabling the light doesn't fix the problem, you should have this diagnosed by connecting a diagnostic code reader that can communicate with the traction control system, then go from there.

Hi, have you scanned the vehicle to see why your check engine light is on? IF no, you need to. Toyota/Lexus computer system illumniates both engine light and VSC lights whenver a fault occurs in either unit. VSC or stability control is like trac-control or ABS braking system. Get car scanned and make sure all computers are scanned for additional codes, repair them first reset lights and test drive. ON a side note, fixing check engine light will usually take VSC light away also, however sometimes the VSC system will glitch out and a Steering Angle relearn is necessary, it takes about 3mins to perform and a good quality scan tool with 2004 current software. Good Luck.

Its possible.

Whenever the check engine light comes on the VSC and Traction control will disable because they need the engine at 100% in order to function correctly. Since the ABS light is on I would have to wonder if it isn't an abs problem. Since the VSC and Traction control use the ABS sensors/system to function.

Or there is a problem with both the engine and the ABS.

The only way to know for sure is to have the PCM scanned and the ABS module to see what is goind on.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

when i bought my car TOYOTA AVENSIS CDX (2002) had no lights on the dashboard, when i cleaned the engine (carefuly with out pouring much water on it, when i started the engine, 2 sets of lights came-on VSC TRC OFF & The one in ingine shape!

i am wondering what went wrong, car has just been serviced, drove it from Scotland (where i bought it from)

try to reset for a momentany failure, disconnect the negative battery terminal few minutes, then reconnect and start engine

Go get the codes pulled at auto parts store.

When the check engine light comes on it automaticly turns on the trac and vsc light, diagnose your check engine light to fix the vehicle.

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

to reset for a momentany malfuntion,disconnect the negative battery terminal few minutes, reconnect,start engine and drive to check