Intermittent cycling of power door locks on Dodge Ram Van 1500

Intermittent cycling of the door locks especially during damp conditions may occur. Our technicians tell us that revised door and liftgate lock cylinder switches are available.
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Average mileage: 107,500 (95,000–120,000)
6 model years affected: 1998, 1999, 2000, 2001, more2002, 2003
8 people reported this problem
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Viewing 1 - 2 of 2 problem details
We thought we were going crazy! We knew the van was unlocked when we parked it, and 2hrs later it would be locked! We realized the van itself was doing it when 30 minutes into a trip, all of the sudden the doors all started locking. It even happened once when we had stopped to get gas, luckily I had went inside and had the extra set of keys in my purse. Since then we just make sure we always have an extra set of keys in our pockets.
2002 Dodge Ram Van 1500 120,000 mi,
We have had this problem for at least 2 yrs and it seems to drain the battery especially if it happens over night and we are unaware of it.