Maybe the motor for the lock mechanism is dead.

Did you check the fuse?

I checked all the fuses. I replaced F23 and F 37

And.... It didn't fix the issue? Unplug the motor and apply 12 volts and see if it clicks... So you know if it's the motor versus the circuit.

I removed the motor and direct wired it to the battery. It worked all 5 times I tried. All the wiring checks out all the way to the plug. Something is wrong from the boot/trunk to wherever it gets power. All the wiring in the rubber sleeve is intact.

Thank you for taking the time to answer this thread.

Ok so it's not getting 12 volts... Did you check the relay?

I use a LoadPro which loads the circuit to see if it truly is carrying enough voltage. Any minor corrosion will cause a circuit failure even though it shows continuity.

I will test tomorrow. Thank you!!!