2005 Dodge Grand Caravan: I was wondering why the driver side rear door makes a a loud screeching noise when we unlock the doors. It still opens but there is a noise.
The door lock actuator is going bad.
Before you buy a replacement solenoid, trying resetting the BCM (body control module) by removing fuse 19 in the fuse box under the hood. Wait a minute and reinsert the fuse. I had the same problem, bougth a solenoid online and the noise went away. The power to this is provided by the BCM and I think it was modulating the DC until I reset the BCM and then it was steady DC/
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