Trailer Light Repair with the Tow Doctor and Power Probe

Repair and diagnose trailer lights with the Trailer light light tester, tow doctor, and the power probe.
One thing to remember when using the tow doctor and LED tail lights is there is not much current flow. The tow doctor will display the error light thinking there is an open, because of the low current use.

[@vicpetrishak7705]

As in LED light testers this light cord tester will not draw much current . Wire an incandescent head lamp up , it will draw 5 amps to check the electrical power source . Jonard Tools sells a small quality fuse puller unfortunately made in China . Good Video .

[@crossbow3539]

Sucks when you have to use a diagnostic tool to check your diagnostic tool