CEL VSC TRAC VSC OFF light came on all at once

[Chasecapps55]

My tires pressure light came on a few days ago in my 2004 4runner v8, and now my CEL, VSC OFF, and VSC TRAC light all came on today while driving. Went to autozone and they plugged up a code reader and it read bank 2 catalytic converter. What should i do? Not really wanting to spend 2000 on a new cat if mine isnt messed up. Any solutions? Just got my oil changed about a week ago. Any help would be great.

 

[T4RVB]

Check ur abs wires reference the vsc lights coming on.

 

[Hongster]

My tires pressure light came on a few days ago in my 2004 4runner v8, and now my CEL, VSC OFF, and VSC TRAC light all came on today while driving. Went to autozone and they plugged up a code reader and it read bank 2 catalytic converter. What should i do? Not really wanting to spend 2000 on a new cat if mine isnt messed up. Any solutions? Just got my oil changed about a week ago. Any help would be great.

How many miles do you have on your car? The code is not necessary means your CAT is bad, but could be O2 sensor. If you have some type of code reader can read live data you can find out which O2 is bad.

I hate Japanese software logic. A bad O2 should have nothing to do with VSC, traction control.

 

[Chasecapps55]

Around 158k. Like i said the code reader they used pulled up as a bad cat. But i asked about the trac lights and they said their code reader doesnt read for traction control.

 

[Hongster]

Around 158k. Like i said the code reader they used pulled up as a bad cat. But i asked about the trac lights and they said their code reader doesnt read for traction control.

Don't worry about the VSC traction control light. Once you have fixed the CAT code all them light will go away. This is why I said I hate Japanese software logic, they don't know what the Hell they are doing.

 

[Chasecapps55]

Ok thanks. So what should i do about the cat code? I honestly dont think my cat is bad.

 

[Hongster]

Ok thanks. So what should i do about the cat code? I honestly dont think my cat is bad.

With 158K miles it is possible that the CATs are bad. But, like I said earlier from my previous post, you need a good scanner to read O2 live data and base on the data of the O2s, one can make very good decision whether the O2 or CAT is bad.
Since your don't have any tools and the ability to read live O2 data you have a few options.

1/ Talk to your trusted mechanic he maybe able to tell you exactly what's wrong. Or
2/ Replace the post O2 sensor for whatever bank that CAT has problem with.
Toyota O2s are very expensive, I think they are over $200 each. I bought a Bosch's universal one for $60 and then spliced it, save tons of money that way. Worked fine for 3 years now.

GL.

 

[Chasecapps55]

Thank you!

 

[BlackWorksInc]

How many miles do you have on your car? The code is not necessary means your CAT is bad, but could be O2 sensor. If you have some type of code reader can read live data you can find out which O2 is bad.

I hate Japanese software logic. A bad O2 should have nothing to do with VSC, traction control.

Actually it makes sense when you think conservatively, I touch up on it in this thread:

http://www.toyota-4runner.org/4th-gen-t4rs/151487-check-engine-trac-vsc-read-me.html

Also it's not just Toyota, a lot of manufacturers have started running with that logic.
[MENTION=120731]Chasecapps55[/MENTION]

I'd want to at least how the front O2/AFR and rear O2s match up when warmed up and revved at 2500 RPM before condemning the cat.

 

[Hongster]

Actually it makes sense when you think conservatively, I touch up on it in this thread:

Yeah but what did we do to get around before traction control and ABS? The Jap's software logic is way too conservative and it almost sounded like scared tactic to consumers. Most consumers don't know a lot about cars and thus put their faith on the mercy of the dealers.

BTW, I heard the japs are going to buy Ford software for their cars, this came as a surprise to me though. Thought I'd never see that day.

I disable my traction control often enough times during the winter. Sometime you just have to take control of the horse you're riding on.

 

[BlackWorksInc]

Yeah but what did we do to get around before traction control and ABS? The Jap's software logic is way too conservative and it almost sounded like scared tactic to consumers. Most consumers don't know a lot about cars and thus put their faith on the mercy of the dealers.

BTW, I heard the japs are going to buy Ford software for their cars, this came as a surprise to me though. Thought I'd never see that day.

I disable my traction control often enough times during the winter. Sometime you just have to take control of the horse you're riding on.

Well to be fair since VSC, TRAC, other functions heavily rely on engine data and throttle manipulation, then any error in those systems would by extension make those systems faulty as well. I'm not a fan of all the electric nannies myself, but feed the wrong (or incomplete information) to the VSC or TRAC system and your vehicle is going sideways without warning. It's mainly why for all the advancement in the world, most VSC/TRAC systems freak out on ice and snow; because they lack the critical information that they are operating on snow/ice and may actually want to promote a controlled slide vs. eliminate it.

I haven't really heard anything about Toyota buying up Ford Software, but one our new Scions it a rebadged Mazda 2 (though technically Mazda bought itself out of Ford recently if I remember right.)

 

[Hongster]

Well to be fair since VSC, TRAC, other functions heavily rely on engine data and throttle manipulation, then any error in those systems would by extension make those systems faulty as well. I'm not a fan of all the electric nannies myself, but feed the wrong (or incomplete information) to the VSC or TRAC system and your vehicle is going sideways without warning.

I see your point. But, what bothers me is Toyota the only company that does this shut down VSC, TRAC while other don't. I know BMW doesn't do it, but what they do is to default the bad bank with a fixed mapping, then throw an engine code but never had they shut down the VSD, DSC etc...This could be a live and dead moment for some in-experienced drivers on snow and wet road.

It's mainly why for all the advancement in the world, most VSC/TRAC systems freak out on ice and snow; because they lack the critical information that they are operating on snow/ice and may actually want to promote a controlled slide vs. eliminate it.

I agree. I don't think we are there yet with software logic to save someone out of icy conditions. I know others cars use DSC plus Steering angle, still when it come to ice, we can forget about it. Nevertheless, I'm not anti technology.

I haven't really heard anything about Toyota buying up Ford Software, but one our new Scions it a rebadged Mazda 2 (though technically Mazda bought itself out of Ford recently if I remember right.)

I went and looked for the article to show you however it was an advertise article not real news, so that was bad of me sorry.

 

[SSt4r]

Do you know what the numbers for the AFR & O2 sensors should be?

 

[mickeyblue]

Isn't this also a "check your gas cap" type of warning?