MustangForums.com

Ford Mustang V6 and Mustang GT 1994-2014: Why Don't My Interior Lights Work?

Interior lighting is much more than a mood settler; you use it to find anything you need inside the Ford Mustang. Here's how to diagnose the interior light if it stops working.

By Bassem Girgis - September 25, 2015
Contributors: Paulstravelpictures.com

This article applies to Ford Mustang V6 and Mustang GT (1994-2014).

The interior light works as your guide inside of the Ford Mustang. If you don't want to use your phone for light or keep a flashlight handy, you need to make sure your interior light is working properly, especially if you want to use it to find the very same phone you use for light. The issue can be diagnosed at home, and it doesn't require too much work. Learn how to do it here and save yourself some money.

Materials Needed

  • Flat head screwdriver
  • Voltmeter

Step 1 – Check fuses

It could be blown.

The first thing to do is to check the fuse that is in charge of your interior light. Locate the fuse box on the passenger's side, just where the passenger's right foot would go. It is next to the passenger's door. Open the fuse box cover, and turn it around to see the map of the fuses. It should tell you the exact fuse for the interior light. Pull the second plastic cover covering the fuses, then locate the fuse puller, and use it to pull the fuse out.

Inspect the fuse to see if it's blown or not.

  • Figure 1. Remove the fuse box cover.
  • Figure 2. Check the map on the cover or owner's manual to find the fuse.
  • Figure 3. Check your fuse and replace if it's blown.

If the fuse isn't blown, proceed to Step 2.

Step 2 – Check the bulb

It could be burnt.

If your dome light isn't working, pull the bulb out and inspect it to see if it's burnt. Pry the dome light cover gently with a small flat head screwdriver, then pull the bulb out and inspect it. If it's burnt, replace it and test.

  • Figure 4. Pry the light cover. (Paulstravelpictures.com)
  • Figure 5. Inspect the bulb. (Paulstravelpictures.com)

If the bulb looks OK, move on to Step 3.

Step 3 – Crack out the voltmeter

The dome light might not be receiving voltage.

With the dome light cover off, check to see if there is any voltage going to the dome light. Use your voltmeter for this test. If you don't have any voltage, it's recommended you visit an auto shop because electrical issues are more complicated.

Figure 6. AutoZone employees are trained to help you with such tasks for free.

Related Discussions