How do I test trailer exterior lights?
I had my globe trotter trucked in so, my tow vechile does not yet have the wiring and I want to test all of the exterioir lights to see if there are any problems while I have access to the wiring-
The old style harness plug is still attached to the trailer and I do have the diagram.
Can someone tell me what I can do to test the lights? I am sure it is just a matter of putting a battery + the appropriate color wire on the harness? Would the battery ground go to the harness as well or to the frame of the trailer?
Finally, must I have the trailer battery connected in the back to complete the circuit while doing this? OR, an easier way?
Thanks very much for the help!