Do the new 07 IS have any of the Drive By Wire technology in our cars? Such as Drive By Wire throttle system, Drive By Wire Steering, etc.? The Civic SI's have them all, but what about the IS250's?

 

All ISx50 have it and have had it from the first model year.

 

Both the drive by wire steering and throttle systems? Or one or the other?

 

i know they got the throttle system.... not sure about the steering...?

can anyone shed some light?

 

Yes, I like to know too. I can't wait to get the complete repair manual when it's out.

Also, you guys ever wonder what would happen if the computer/programming hangs or have some kind of an error on the drive by wire throttle system? I hear some crazy stuff can happen like the throttle could get stuck in one position or becomes unresponsive. That's scary.

 

The manual for the '07 has been out since August. Its available online with a paid subscription.

The steering is not drive by wire. It is an electrically assisted conventional rack and pinion gearbox.

The drive by wire throttle has two separate circuits that must agree about what is going on to operate the throttle. If they disagree, the throttle is closed. If the power fails, the throttle closes. In fact, if anything goes wrong, there is a mechanical spring that closes the throttleplate, so pretty much no matter what happens, the throttle closes. There is a great deal written about this in the new car features manual. I would suggest reading it from cover to cover if you want to gain a basic understanding of the technology employed in your car.

BTW, there are very few differences between 06 and 07 model years. The biggest difference is the ability to turn VSC off with a switch instead of having to do the pedal dance.

 

I don't think that any mfg has a steer by wire system in production yet..at least for the front wheels.

 

Is steer by wire almost like eletric steering.. Like the new LS?

 

The Honda Civic SI for the 07 models all have drive by wire steering control and throttle systems. It's pretty neat how a little car like that can have one and not the Lexus. Strange. Lexus is not in with the times.

I don't if steer by wire or drive by wire is the same thing or not.

Now the question is, how do you turn off VSC?

 

Your sig says you have an 07, it is simple as pushing the trac button for around 3 seconds then a light will illuminate and thats it. ( I replied to this nicely because asking things like how to disable VSC or anything comonly asked on these forums is just asking for a serious amount of SEARCH responses, but its one big comunity in my eyes and I like to help out )

 

Hold down the VSC button on your dash for three seconds. The VSC off should show up in your dash.

 

I believe the new LS460 is a "drive by wire" steering. I had heard that when they designed the self park feature that the steering wheel did not have to turn, but they simply have it turn because they felt it would freak people out if the car was turning and the wheel was still. Could be wrong, but that's what I heard.

 

Our cars, and also the Honda Civic si, have electric assisted steering. This is just an electric motor that takes the place of what the power steering pump used to do. There is still an actual mechanical link between the steering wheel and the rack and pinion therefore NOT making it a steer by wire system, The LS vehicles are the same way. A true steer by wire system is still not cost effective and there are obvious safety issues.

 

Oh cool. Wow, that's good because it should add less weight by getting rid of the pump. Drive by wire throttle seems pretty good. It's very responsive, which is a nice feature of that technology.

 

No, the 07 Civic SI has electric power assisted rack and pinion steering, just like the IS.

True steer-by-wire sounds like a horrible idea. With no physical connection between the steering wheel and front wheels, how could one get decent road feel? I imagine it would feel like playing a driving game with a force feedback steering controller.