Thing is, the ECM still had all the overheat monitoring and shutdown protections in place separately, and a working temp gauge on the instrument panel, So even if the coolant level was indeed shy, it still would have protected it’s self from overheating. The level sensor should have done nothing but just active a warning light. In no way should it have ever disabled the vehicle. It was just job security for over ambitious engineers who were bored and worried about being laid off. Keeping themselves employed with unneeded crap at the extreme cost and inconvenience of those who have to use the vehicle and those who have to work on the vehicle. :)
Yup. I supervise process control systems. In that roll I have to discourage engineers from overlapping features that are in danger of conflicting each other on a regular basis.