power locks jimmy

My power locks controls on both doors are not working (locking or unlocking), but the keyless entry remote does still work (2001 Jimmy). I checked fuses, all are good. Is there some kind of relay or something that may be shot?

I had the same problem last month. I had to replace the door lock motors. motors still good but GMC uses plastic parts. Once the plastic part cracks due to stress, u gotta replace the entire part. Cost me about $110 per lock at a local garage. do not go to a dealer if not under warranty. I have had friends pay $200 per lock.