JAILER64 Rank: Apprentice Rating: 0%, 0 votes
took my 2002 toyota 4runner in for a smog. the trac light wouldnt come on for the test. the tech said he couldnt complete the test. any ideas toyota ed ?? thanks.
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Re: TRAC LIGHT ISSUE
The trac light does NOT come on for the smog test. It has noting to do with the smog test. The trac light DOES come on when the Check Engine light comes on, when a failure is detected. From what I remember, the trac light WILL come on if the smog is a "dyno-driven" smog test, but it has nothing to do with the test, the trac simply comes on because only one wheel is spinning, just like it will when you are spinning on ice.. Hope this helps.
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www.toyota-4runner.org/.../4164-check-engine-light-vsc-trac-trac-off-li... Jun 6, 2004 - I just bought it, and a few days later the check engine light, VSC TRAC, and TRAC OFF lights all came on. I took it to a dealership and was told ...
You need to have it scanned to find out why the Check engine light is on. Autozone will do this for free. As for the other two lights, don't worry about them. They are just on because of the check engine light. They will go off when the engine code is cleared.
Can't tell much without scanning it. Sometimes a code in the engine computer will disable other systems and cause the other lights to go on. Bring it somewhere and get it scanned. If your a DIY'er bring it into one of the autoparts stores (ie:autozone) and have them scan it for you for free.
NEED TO HAVE COMPUTER CHECK FIND WHAT CODE MADE THE ENGINE KLIGHT COME ON.. AND HAVE IT FIXED,, VSC LIGHTS COME ON BECAUSE THE COMPUTER DEACTIVATES THE VSC AS A SAFETY FEATURE WHEN CK ENGINE LIGHT IS ON
This could be two seperate problems but the trac and vsc lights can come on when the check engine light does for a number of codes. Have the check ngine light scanned to diagnose the problem. When the problem that caused the engine light to come on is resolved and the code cleared the tra and vsc lights should turn off as well. Rarely they will stay on in which case your toyota dealer may have to do a "zero point calibration".
I talked to you on the live chat, and I think that you may have missed the end of my typing...
What I went on to say is that more often than not, on the 02 4Runners, the Check and VSC lights in tandem look mainly after the emission system, and, since you stated no issues during the road test, I would guess that it is a fuel issue (too full/loose gas cap). But, if you can get the vehicle scanned, I will be very glad to provide you with more and better info if you provide me with the DTC codes. That would require your guy or an autozone hookup to a scan tool. I hope my clarification helps; and the graciouness of a FIxYa rating for this question would be greatly appreciated