The dealership troubleshot my 2000 Ram Van and said you need a new PCM. So they installed one. I picked it up today and got a check engine light. The trouble code is P0505. 1:Could this be a bad computer? 2. Could it be the reason my original computer failed? 3. The trouble code is about IAC problems. I cleaned it once before. So I know were it is. I just don't know where the IAC motors 1,2,3 and 4 are. And finally 4, would it hurt to drive it around for the weekend since it seems to be working?

 

FYI - Your engine only has one IAC.

Here's the IAC How To ...

https://dodgeforum.com/forum/dodge-r...n-the-iac.html

This will show you where the IAC is and what to do with it.