2000 dodge ram doors will lock but will not unlock with button. They will lock and unlock with fob?

SOURCE: fob will not unlock/lock doors 2007 dodge ram,

fob broken or bad, or fob battery bad, key problem not reading key code

SOURCE: 2005 dodge durango key fob

Hello and thank you for choosing fixya.com. I would suggest taking your vehicle to a local auto parts store and request to have a diagnosis done. (while auto stores vary, this is usually a free service and only takes a couple minutes to complete) to see if any codes are brought up. If so, the representative can tell you what the codes mean, and what needs replaced or repaired. Let them know of the situation. Even if no codes show up, ask them to clear the codes. If this does not work, do the following. 1: make sure that the batter in your key fob is inserted correctly, and that it is the correct size and type. 2. Disconnect the + Positive cable on your battery. This will reset your the vehicles computer. Maybe this will allow the vechile to code up with the fob. If not, I would take it to dealership, or backto an auto part store for further assitance.

I thank greatly for choosing fixya.com. I hope this information is useful to you and helps you get your fob working again. Let me know if you need further assistance, or have any questions or comments. Feel free to rate this information at your earliest convenience.

SOURCE: 2002 Dodge Grand Caravan Driver Door Lock/Unlock Switch

sorry not sure the 12v prob will help this swtich works on 5v off 3v unlock 1v lock single wire lock/unlock logic signals
I found wiring diagrams at
http://www.dodge.com/bodybuilder/2004/docs/wd/rswd/tc.pdf
it is 2004 but use the wiring diagrams to test the wires
(most likely to fail where they flex)
because it is using logic gates disconnect the plug at each end of the wire you are testing or the damn thing will find a few diffrent ways to trick you.

SOURCE: 2004 Dodge Ram 1500 Quad Cab Drivers side power door lock broken

Sounds like the link rod to the latch are jammed in the locked position by something inside the door or it came off. Any way, you have to remove the door panel to get access to it.

SOURCE: Keyless Entry won't Lock/Unlock back door

Factory keyless?