VSC TRAC, trac off AND cHECK eNGINE LIGHTS, 2006 toyota sequoia

SOURCE: VSC TRAC and TRAC OFF lights

you need to have the computer reset.

SOURCE: 2004 Sequoia. VSC TRAC, TRAC OFF, and Check

It is not hard to change the sensor, it just screws into a threaded hole. The light will not go out immeditaly, after the sensor is replaced. It needs to go thru a drive cycle. Your best bet is to replace the sensor and get the code cleard by whoever scanned it for the 0031 code.

SOURCE: VSC TRAC, TRAC OFF and CHECk ENGINE lights

You have to know what code is stored to fix the problem. Toyota's will generally display a Check Engine light, VSC and TRAC light all at the same time, even if it's a simple problem with an oxygen sensor (for example). You can disconnect the negative battery cable for a few minutes, even though you should a scan tool should be used, to clear out the code.

SOURCE: 2004 Toyota 4Runner, Regarding The VSC TRAC and VSC OFF lights

Check your switches for the VSC, some get bumped on (due to their location) and some get stuck in the "on"position.