Question about 2006 Toyota Highlander
Code from autozone p0420
Posted by Anonymous on
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Posted on Jan 02, 2017
to reset for a momentany malfuntion,disconnect the negative battery terminal few minutes, reconnect,start engine and drive to check
Posted on May 03, 2009
Check your switches for the VSC, some get bumped on (due to their location) and some get stuck in the "on"position.
Posted on Aug 04, 2009
CODE PO420 CATALTYLIC CONVERTER SYSTEM FAULT.ITS SAYING FAULTY CATALTYLIC CONVERTER.IF IT BEEN A WHILE IF YOUR CAR HAS A WHOLE LOT OF MILES ON IT.YOUR SPARK PLUG CHANGE IS DUE AT 120000 MILES. DUE A LITTLE TUNE UP CHANGE AIR FILTER AND FUEL FILTER.SEE IF YOU HAVE ANY ENGINE FAULTS BAD PLUGS DIRTY INJECTORS ANY THING UP SET FUEL SYSTEM CAUSE CAR TO RUN RICH.EXCESSIVE UNBURN FUEL WILL GATHER IN CATALYTIC CONVERTER CAUSE IT TO BURN OUT.SHORTING LIFE OF THE CATALYTIC CONVERTER.
Posted on Aug 30, 2009
VSC is Vehicle Skid Control. The system is usually on, but when you turn it off (on my mother's 01 Avalon, it's on the knee bolster, below and to the right of the steering column), the indicator comes on in the cluster to let you know it's turned off - it's just a reminder to you that you don't have that safety net activated. The way the car is set up, even if you turn it off, when you shut down the engine and then restart it later, the system is rearmed automatically.
What I'm thinking is, since you've obviously had the engine on and off and the VSC OFF and TC OFF warnings are still illuminated, you probably have a problem with either an ABS sensor, a yaw sensor, or something related to those, as those systems rely on a bunch of sensors to work. If they have failed, it should illuminate the check-engine light. Stop at Auto Zone or Advance Auto Parts and have them scan the car's computer (it's free). They'll give you a list of the fault codes that come up. If you post them up here, I can define them for you and help you solve the problem - just post them as a reply or follow-up on this posting.
Posted on Nov 08, 2009
Testimonial: "Thanks a bunch!! Big help and I will do what was suggested to solve the problem. Thanks again."
I am having a multiple cylinder misfire on my 2006 Toyota RAV4 with the 3.5L V6. Every cylinder is reporting a mifire. Each cylinder has it's own coil. I highly doubt that all 6 coils went bad at once. Does anyone have any idea what my be causing this?? Is that the problem you two are having?
Posted on Mar 09, 2010
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