I don't know if this will help, but I've had a few problems, too. First the actuator (gray thing w/ piston arm and cap on it) that failed, but that's an easy fix. Then the trunk started doing the same problem, and I figured the actuator died again. Turns out there is a little spring inside the latch bracket (separate from the actuator) that keeps the tension. If the spring busts (mine did), then nothing works right. Even making the trunk "click" will not force the lever to throw, and thereby actually unlatch. Unfortunately, you can't buy just the spring from the dealer; you have to buy the whole lock kit. I cheated and found a spring at NAPA that was very close (shame on me) and dropped it in. Problem solved.