Just installed 2 new door lock accuators in my 2001 HSE. While at a very long stop in traffic, a door lock clicking sound started to come from the door panels. The actual locks were not moving. Just the sound. Any thoughts on the problem and how to fix? Thanks. Bob

 

They are getting the signal to unlock/lock depending on their position. Since they are already in that position, their status is not changing and you hear it "click". Something, most likely the driver side or passenger side door locks are telling the system to engage or disengage.