1966 Mustang

Replacing a Headlight Switch

Wed Apr 13, 2016 1:11 am
Comments: 1 Views: 1010

Replacing a headlight switch is a perfect example of an easy fix once you:

  1. identify that it is a problem
  2. you know how to change it
headlight switchOtherwise it can be annoying.

Our switch was probably the original from 1966. There are a couple of indications that your switch is bad.

  • the headlights don't work
  • the dash lights don't work
  • you hear buzzing when you change the dash light intensity
  • it may interfere with the turn signals

There are probably other indications, but we have not encountered them.

Note: The photo shows what the old switch looked like.

Removing the old switch

The first thing to do is disconnect the battery. Don't get shocked.

Then remove the dash instrument panel. There are a lot of wires but you do not need to remove them. The only connection that needs to be removed is the speedometer cable. It should unscrew easily by hand. Then just lay the panel on the steering column.

The next step is to remove the cable to the old switch. As you can see from the photo above there are a couple wires going to it. This is a one-piece plastic connector. Just remove it as one piece.


This is a photo of the new switch. Notice the button on the side. This button releases the light pull-out stick. 

To remove the pull-out stick for the lights push the button while gently pulling the stick out. This exposes the large screw that connects to the switch.

Using a very large regular or philips screw drive unscrew the old switch.

Just reverse the process to install the new switch.

Wed Apr 13, 2016 1:11 am
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