2000 Escalade rear barn door/hatch lock

[73impala]

Was wondering if there was a separate fuse for the locking system on the rear barn door/hatch. The driver door doesn't unlock the rear door and neither does the keyless entry remote. Can only unlock the rear doors with the key

 

[73impala]

Any idea? Is it the actuator or electrical? I don't hear anything moving in the door when I try too unlock the door/hatch

 

[DCT]

Actuator goes bad. Mine works in warm weather sometimes. It's easily accessed behind the panel. Its a sealed unit. I haven't tried to open it up and fix it. Cost is $200 plus at the dealer. I wouldn't buy used since it will fail eventually.