Wacky problem. Hoping someone can shed some light on it.

[Longroof79]

Might not be there, it was quite a while ago.

I had the 94 Beretta Z26 and I had the unmarked undercover lights in it. So I do remember the fuse box on the passenger side I'm thinking there was one also on the driver side that was a long time ago.

The first problem I had with the automatic locking doors was right after I picked up the car I was in a slight rain so the doors were shut, windows were up, engine was running, shifter was in park. When I returned to the car after being away for about 15 minutes, the car had automatically locked its doors.

In my case I pulled that one fuse like it said in the operator manual, and then the gauge package didn't work. The other issue I had was when I was on a traffic stop I couldn't open the driver's door.

I actually had to have the car in Park, shut the engine off and then it allowed me to unlock and open the door. Totally stupid. But during this time back in the 90s is when GM and all the other automakers were putting in these safety devices that would control the door locks and yes some of them didn't make sense.

It still seems to unlock the doors overnight after locking them, Oddly enough, after cleaning the contacts in the door lock switches, the doors would remain locked overnight. Now I'm back to chasing my tail. I appreciate all your suggestions, Eric.
I put the question out there figuring other people must have encountered this problem before.

 

[Longroof79]

Have you considered the BCM? I suspected that when my '04 truck was doing this and other things but it turned out to be the Clifford alarm system. With so many control modules and relays the newer vehicles are a nightmare.

Johnny,
Not to sound ignorant, but please define BCM. I take it it's a module of some type.

 

[Sweet_Johnny]

Johnny,
Not to sound ignorant, but please define BCM. I take it it's a module of some type.

Sir, I've learned a lot from you as well as others here and you're certainly not ignorant! I didn't really know what it was myself until I had the issues, but it's the Body Control Module. Essentially the brain box for all of the interior accoutrements. As I understand it, it plays a role in controlling the electronic devices such as locks, windows, gauges, interior lamps and things of that nature. I could realistically see a bad chip, cold solder joint, or short on a body control module circuit board being the culprit, activating things as contact is made or broken. Possibly due to temp?