Power Door Locks

My 2000 Intrigue recently developed a bad habit of intermittently refusing to lock its doors electronically. They always unlock, but only lock about 1/2 of the time. This is slowly getting worse. Has anyone out there had or heard of this problem? Sound like the BCM?

Nobody has had this problem?? I tried replacing the hazard switch after hearing that was the problem from someone else but either it didn't solve the problem or the new switch went bad too. I am trying to sell this thing and now this problem has resurfaced. :mad:

Is it the same for the lock switches in the car as well as the remote controls?

Yes. Alldatadiy.com lists a troubleshooting algorithm for the car and they indicate that when "always locks, doesn't unlock" to check the 180 circuit - the red and black wires between both front door switches and the BCM. I haven't found a wiring issue so I am thinking that leaves only the BCM. Maybe.