Quote Originally Posted by cumminsdieselfreak View Post
How old are your batteries?

These trucks do not do well with weak batteries.

If they're older I'd suggest having them load tested while you try to figure this issue out. There is also a chance that your new actuator is bad. I'd check every fuse that I could get to, unhook my batteries for 10 minutes, reset codes via MM3. If that doesn't work then I'd load test batteries individually(replace BOTH if one is bad) then see if BD has anything to say about.
I just had them tested a few months back before it started getting cold to make sure they would be good.

Both had solid output.

Tomorrow I’m going to follow the wiring to make sure it’s not rubbed off or grounding out somewhere.


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