Ragin Cajun

Hello and glad to be here. I would like or rather "need" guidence on a 2001 GS430. I've read several threads here concerning the actuator / motor , studied wiring diagrams and versed myself on the communication sequence once the lock / unlock command has been given, both with the remote and interior switches. I do not know the entire history of this car as it was a gift two months back for the HS graduate. My confusing issue would be: The remote nor the interior switch at both the driver and passenger positions neither L / UL any of the doors however, when the L/UL selection is made on both the remote and interior switches an audible "clicking" sound inside all four doors can be heard indicating signal and power is being delivered yet no L/UL. The remote will ; operate the trunk, Panic and open all windows and roof when U/L is held down. I've tested the remote battery and is good,"3.2v" and all fuses check out, "all 4 locations". Prior to changing 4 actuator's would someone advise. Thanks in advance.