Are you still using the OEM battery terminal connectors? If so, do what I said earlier and you won't need to be asking this same question again and again.

 

a very close reading of what he said, and a very close look at the dr.door wiring; shows there is one lock relay for all 5 doors and 2 unlock relays. so if the dr door actually locks when he closes it the one lock relay would have to do it,but how? since it is wired to all 5 doors!
one unlock relay runs the dr door alone and the other runs the other 4 doors.
those 3 relays are in the dr door module. I would swap them around to see if the problem changes.
its very tricky because any batt glitch that causes a lock would affect all doors, even though it seems like that is it. he says only the dr door locks. ??


finally, under normal operation there is no way to lock just one door, only all 5. you can unlock the dr door,or the other 4 after that but not all at once.


tell me more.

 

Same thing with any connection, you removed the connection, removing some corrosion, then reinstalling, making a better connection and it works. Now it's failing again? Poor connection. Just do what Doc stated:



This is what a good connection looks like (not those cheap/weak oe terminals) Take note of the resting voltage (12.65v) that's excellent:

 

it starts to look like all doors get the unlock signal,EXCEPT the driver door. the dr door gets its unlock from the bcm ONLY. the other doors can be unlocked by switches on the dr door or the pass door.
thr dr unlock is completely apart from the others.
I go back to swapping the relays in the dr door module,or the dr unlock signal from the bcm.


this looks like a different problem from the one where the sw assm needs reset.
when its warmer ill pull the module and look inside. I am real curious about both problems. they are not going away!


I finally got a copy so it can be seen clearly.


theres a ton of reading to do in the doors pdf, it starts to look like the bcm malfunction.
not finished yet