Hyundai Repair: 02 sonata central locks problem, central locks, front doors

Question
The locks on my Sonata unlock fine (w/key or door button or front doors locks). They do not lock with any of those, I need to lock them manually every time. When pressing lock button (or lock front doors), I hear 2 clicks from ETACM (as I should), but actuators do not engage.  Where should I look for a problem?

Answer
You probably have an open circuit in one of your door relays (either lock or unlock, but most likely the lock relay).  The relays are located in the BCM panel behind the switches on the very left of the dash.  Looking at them through the hole where the switch panel was, they're the two black relays on the top at the right.