2000 GMC 3500 Pickup Q&A

2000 GMC 3500 Pickup Question: What is wrong with my Door Locks besides the switch itself?

I replaced the master door lock switch and that did not help, still all 4 door locks are not working. What besides the master switch could be causing all 4 door locks to not be working? -
Answer 1
check for power and ground to the switch -