Check engine light vsc trac & trac off lights come on

[piptraderfx]

I have read through these posts and have found to do a zero point calibration to reset these lights/codes. I disconnected the battery just to see if that was it, but that didn't work , so I followed the instructions to reset the zero point calibration and to no success. It did everything it was supposed to do, according to instructions, but as soon as I started it again afterwards the lights all came back on. I just bought a 2004 4runner Limited and I recalibrated it 3 times and the same result every time. Any suggestions/ideas would be GREATLY appreciated. Thanks

 

[scenic-seeker]

Just like to give you a welcome. Try posting in electronics or maintenance.

 

[2k1]

you need a new gas cap probably...get a new one put it on and go through a tank of gas and it should shut off on its own...just happened to our 2004 sienna and for $9 shipped through amazon we were light free

 

[Speedy Gomez]

:welcome: to T4R.ORG!

 

[Jammin]

This also happened to me last week.

Does the light go off when you restart and only when you move off? This happened to me when I upgraded my headunit to a NAV/bluetooth unit. The lights would come on only after the truck moved a couple of yards. Seems there was some connection issue which resolved itself after a zero point calibration. My mechanic said there is a service bulletin about this issue.

 

[slikr]

Did you check the CEL? If it is small evap leak then yea gas cap the trac lights usually come on with the CEL.