Broken wires rarely occur on their own so don't expect to see the same thing on a second car. Instead, the proper way to diagnose a problem related to a computer or an integrated circuit is to check all the voltage feed circuits, then all the ground circuits. Nothing can work when any one of them is missing.
What I would suggest is to start a new question specific to your car, and please be sure to list the engine size and mileage. We use that information to know which of multiple systems are used and when making generalizations as to the best suspects. This was a private conversation between two people, and as such, none of the other experts are going to see your addition or have a chance to reply. That may not get you the help you need.
Also be sure to list the specific symptoms, what led up to the problem, what you've checked already, and the results. That will help narrow down the replies and get the diagnosis going faster.
Here's the link to post your new question:
Friday, May 31st, 2019 AT 10:27 PM