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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 ...
That code relates to a crankshaft position sensor signal. It you have a check engine light come it disables the VSC and Trac system. Until you get that sensor fixed the VSC and the TRAC system will be inop. So whenever you have a check engine light come on that is what you will see. Even though you cancel the check engine light the fault still exists and the VSC/ TRAC light will come back on. That is a sure way to tell that something is wrong.
when ever the check engine light is turned on for any reason the vsc and trac light also comes on to let you know they are not working, whenever the engine light is on the other systems can not operate if the engine is not working correctly, so its programed to shut down the trac and vsc when the engine light is on. the catalyst system means the catalic converter is no longer cleaning the exhasut to specs, this is caused by a weak bad converter or bad o2 sensors giving false readings you will need to have the sensors checked to see if they are the problem or the converter is the problem good luck.
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.
could be alot differnet things u need to take it some where to have codes scaned on it more than likely it a bad speed sensor but cant tell for sure until codes are scaned
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