Originally Posted by AtlHideout
Update: I've check all fuses, switches and traced the wires and there are no signs of damage or disconnect. Unfortunately I'm still not getting any power to the three fixtures. Any suggestions?
How did you trace the wires? Buy a spool wire (#16, 50' will do) and two appropriately sized alligator clamps. Clamp one end to the DC ground in the distribution panel and the other end to the negative of your meter. Then check the positive of the light fixture with the positive of the voltmeter. If you have voltage then the ground circuit is open.
If no voltage then repeat the test with your jumper on 12 vdc positive, essentially reversing everything the setup.