Owners of Toyota Cars in Rebellion Over Series of Accidents

[CTScott]

Originally Posted by why?

Now an old school throttle can get jammed open, I did it on my Saab once. Pushed the pedal too far down and broke whatever stops it, and the car always revved. Not to something stupid, but always too about 3000 rpm's. But Drive by wire doing that? Maybe the wire broke?

The DBW system has two separate accelerator position sensors for redundancy. If either sensor fails (or the wire to it becomes a short or open) it uses the other (and throws a DTC) if both fail it brings the engine down to idle.

With millions of these cars on the road running for zillions of miles and 2000 "possible" cases, it is a fairly low risk of occurrence issue. Reading the service manual about how the DBW works and the built in safety checks, in theory it should be as or more safe than a mechanical throttle linkage.