Power Door Locks Not Working at All
I've tried checking similar threads but just haven't found a solution yet.
Car power locks are completely dead. Key Fob and inside switches do nothing.
The problem started with just the driver door not working. Then driver, passenger and rear driver side not working. Now all 4 of them don't work.
What happens: There is a slight clicking noise from under the dash near where the fuse box is, passenger side one may twitch, but none of them actually change position.
Tests I've ran:
Tried both switches, neither works.
Tried key fob, including barely used spare, neither works. Fobs do still set/disable alarm and open trunk properly however.
Open interior fuse box and checked fuse. To be 100% sure, made sure sunroof fuse good by opening/closing sunroof and swapped. Locks still don't work but sunroof works fine using old lock fuse, so that wasn't the problem.
Pulling the #30 and #32 fuse relays causes no change in lock behaviour.
Checked for loose connections but as much as I can see seems to be fine and making contact.
Disconnected driver side door lock switch. Passenger switch and both key fobs still don't unlock any doors.
Disconnected passenger switch as well. Both key fobs still fail to open any doors.
It is a 2009 Cobalt. I don't know much about it as it isn't my car. I'm just trying to help my dad out here. I'm running out of ideas as to what to try or what may be causing this and appreciate any tips if people have seen similar things happen before or notice something obvious.