[speleos]

Here's some information for your reading 'enjoyment:' https://www.obd-codes.com/u0100 The ECM and PCM are in one combined module easily accessible under the hood. The TCM is inside the transmission.

 

[speleos]

We are seriously screwed when a faulty driver's door window switch can create enough electronic feedback to cause an engine running problem!!

 

[speleos]

@Tmcg, what's your background? Are you a tech, instructor, or engineer?

 

[speleos]

... Speaking as a designer of critical communication equipment, modules should be designed to be more immune to "bus noise". Each module should also be equipped with "watch dog circuitry" that could lock it out in the event of hardware faults like an internal checksum error. ...

Let's hope industry sees this before they unleash autonomous vehicles on us.

 

[speleos]

Sorry Speleos, my last post was a reply to your post or question and my post went here and now I dont see your question. My apologies if that did not work correctly. Please fix my post or let me know how I should fix it.

That's OK. I deleted my comment before I saw your response to it. I undeleted it to keep confusion to a minimum.