ecm/pcm

[Duster]

What is the problem when the code is ecm/pcm power signal intermitent on a 2003 dodge diesel.

 

[Prairie Dog]

I would check all the grounds under the hood including the battery connections and all the ground screws on the qtr panels. (Loosen and tighten them back up, esp the drivers side)
Next, do a load test on the batteries individually - you'll have to disconnect both of them.
If that doesn't yield any results I would then unplug the big connectors from the ECM on the side of the eng and look for corrosion. Some trks of that era had an issue with water getting in this connection.

 

[Duster]

Thanks for the tip on the ground cables. I've worked on it for two days with no success and it was the drivers side ground on the battery. I appreciate the quick response.

 

[Prairie Dog]

Yea! Glad it worked out and thx for updating us.