With some vehicles rated for dinghy towing, a fuse must be pulled before towing to prevent the battery from being drained with the ignition switch turned to acc. To make this easier on my Chevrolet HHR I installed a Dome Light Switch with Harness Kit (part #JW-DLB) from www.quadratec.com. This is a really nice package that’s primarily used by Jeep owners to deactivate dome lights when doors are removed, but this fix has universal applications. You could buy all the required parts and make your own, but I doubt that would save much money.
To install the switch, pull the required fuse, insert the ends in the fuse block (retain the inline fuse you removed), route the wiring to the desired location with easy access to the switch, mount the switch and install the fuse in the inline holder. Turn the ignition to acc, push the toggle switch to deactivate the ignition circuit and tow away.
Be sure to activate the circuit when you are ready to turn the key back to off, as the key will not move with the switch deactivated.
Howard Tidwell, Mount Dora, Florida
