Take some time and reread post 2. See that diagram and pin C1-7? With the divider in the trunk up and the top relased and pushed away from the windshield frame, you should measure less than .5 volt referenced to ground there.

If you have more, than either the top open or divider switch is open. The fact you hear the click in the switch is good -but as George said - that is not a perfect test. If you have near zero volts there, we can move on the the trunk latch/lock indication.

THe Module is down in the driver's wheel well, it is mounted to the pump and valve assembly. Taking the trim out of the trunk to get to it is a pain, but not all that hard.

Alternatively, I gues you could measure at the top open switch - since both wires are black, verify zero volts at BOTH pins on the switch. (Keep in mind the ignition has to be on for this test to be valid and make SURE the meter you are using it grounded well or you will get a false reading).