We live on a pretty quiet street, but I'll try to keep an eye out for trucks going by. How would I go about investigating a door switch?
That has got to be one BIG cat.Not getting any door warnings while driving. The key fob is hanging up in the house and it's about 40 feet away from the car so I don't think that's the issue. The only thing else that's a little different is that one of the proximity sensors in the rear bumper is hanging by it's wire. I wrapped it around the hitch to keep it out of the way. Could it be a cat rubbing against it have some effect? It went off again this morning around 6. No traffic and no wind.
Actually, I do have a reader plugged in. I'll pull it and see what it says.You have yourself a real mystery!
As far as I know there are only so many things that will set off the alarm. Door switches, liftgate switch or liftgate glass switch, a loss of power to the BCM followed by a reapplication of power.
Were I to be faced with such an issue I would use a Bluetooth OBD2 adapter and a spare android device and I would leave it set to record the data bus traffic. After shutdown and locking of the vehicle after several minutes the modules would go to sleep mode. If a door switch activated or there was a momentary power interuption to the BCM there would be a data stream to examine which would very likely shed light on what initiated the activity.
Granted this requires some basic knowledge of working with these things.
Short of that I'm about out of ideas.