Easiest Question You'll Get All Day

[K2Kevin]

YES

[MilCop4523]

Originally Posted by Wolverine 1945

Just do not forget to unplug before you drive off !!!
LOL !!!

I just followed a car with what was left of probably a 25 foot extension cord still attached to the block heater plug in dragging behind them down the highway.

If only they made them wireless.

[NorSnrub]

Depending on your tow truck it has a relay disconecting it from the trailer. There may also be a diode in the trailor isolateing it.