Key remote operates door locks and alarm OK.

5 fuses in locking system.
Removed all, tested them for continuity--OK.
Re-installed all.

When I press trunk button on key remote, buzzing sound comes from trunk lock. Removed lock, pneumatic actuator extends when press either key remote, or console button Doesn't seem to be air problem.

Hit it with WD40, no help. Trunk still will not open with remote or console button.

If pneumatic, then what is purpose of two electric leads ?

See link:
http://www.panchogun.com/FVWebPhotos/FV-Cars-CLK-Trunk-Lock.jpg