Re: Where's The Stop Light Switch On My 56 Executive?

Posted by HH56 On 2013/10/21 19:20:52

No relay needed. The switch has two independent sets of contacts. When the pedal is relaxed, adjust the assy on the column so the switch button is pushed in. The set of contacts far away from the button should then be closed. With the switch wired as per the drawing, the pink or purple wire will be the hot wire feeding both sets of contacts. The set that is closed with button pushed in will feed the TL. When the brakes are applied, the button moves out and the set of contacts near the button will close to feed the brake lights as the others open.

What I did was disconnect the plug and wires from the existing brake switch but kept all intact. That way if you want to revert to original, it will be easy to do. To use the new switch I made a short loom and used bullet connectors on one end to fit inside the existing Packard brake switch plug connectors. Standard .157 male bullets are the same size as the brake switch terminals. Quick disconnect terminals to fit the new switch on the other.

IIRC, the existing harness to brake switch is fairly long and can pull back so new loom extension was only about 18" or so extra. You will have to measure how much you need. I pulled the entire piece back far enough to fit thru the accessory grommet to reach the new switch. Tape or heat shrink the bullet connectors into the old connectors so they can't pull out and you should be good to go.