Symptoms:
-Traction control permanently disabled.
-When the code is cleared, it comes back randomly in about a week.
-Trac lights and check engine light illuminated as shown.


I had the code read at autozone and the print outs they gave me look like this.


There are some trouble shooting suggestions on their print out but its strange that both codes are thrown at the same time and disable my trac control.

where should i start? thanks guys

 

If you have trac it will be disabled when the MIL is illuminated. Thats normal and because the trac uses the engine controls (electronic throttle body) to cut engine power back in a low traction condition.

When the code comes back is it both the 446 and the 420. I don't think they would be related but I'd have to do some research to be sure.

I'm sure others will chime in soon.

 

Could be you didnt get gas cap on tight...make sure gas cap clicks a few times clear codes and see what happens ..

 

traction control blows goats, that is what is happening.

any code at all makes it go to safe mode so it won't
suddenly steer you into a tree with torque, as it would rather
not try to interpret input from a suspect engine management system