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2004 4Runner VSC an...
 
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2004 4Runner VSC and VTRAC lights on and can’t find out what the problem is

  

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About 6 months ago my VSC and VTRAC lights came on in my 2004 4Runner and I can’t find out what is causing them to go off. If I scan using an OBD2 scanner it gives me a “Catalytic Converter operating below threshold” 


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As you may know, the CEL triggers the VSC and traction control light, so the problem is not in your ABS system. Now, going back to the main issue:H ow many miles on the truck? Did you check for the exhaust leak? How are the oxygen sensors (Sensor 2)?

 

 


It has 222,550 miles and I haven’t checked my O2 sensors yet but ik that sometimes the Yaw Sensor can trip itself and you fix that with a zero point calibration. I will try that first and if not then check the O2 sensors?


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