I'll bet a bent con rod against a sludged Toyota engine that it's a Toyota engineering problem.
If it's an electrical malfunction with the accelerator pedal position sensor: a PROPERLY ENGINEERED powertrain control module would ignore the defective sensor based on crosscheck error.
The failback mode would be idle in this instance.
GM does this, and has done this from their first drive by wire.
So far Toyota has tried to make a case for a mechanical cause:
Floor mat, sticking accelerator Etc.
And since their story continues to change it is obvious that either they don't have a handle on this, or they are hiding something.
Time will tell and the buying public will be the judge.
If it's an electrical malfunction with the accelerator pedal position sensor: a PROPERLY ENGINEERED powertrain control module would ignore the defective sensor based on crosscheck error.
The failback mode would be idle in this instance.
GM does this, and has done this from their first drive by wire.
So far Toyota has tried to make a case for a mechanical cause:
Floor mat, sticking accelerator Etc.
And since their story continues to change it is obvious that either they don't have a handle on this, or they are hiding something.
Time will tell and the buying public will be the judge.