4 Steps to Install a Door Jamb Switch
Imagine after a night of fun, you find yourself walking to the dark parking space behind your favorite watering hole. You reach your car, but the cabin lights did not turn on when you opened you car door. What do you do? Check the condition of your door jamb switch. It's the switch that automatically turns the light on when you open your vehicle's door. If it's maladjusted, a minor tweaking could turn on the light. On the other hand, if it has gone bad, then you need to replace your door jamb switch. It's a bit challenging, but if you don't want to stay in the dark, then have them replaced; or better yet, do it yourself. It only takes less than an hour.
Required skill level: Intermediate
Needed tools and materials
Preparing for the task
To access your door jamb switch's location you must first remove the door panel of the malfunctioning door. Use the Phillips screwdriver to unscrew the door panels off.
Locate the door jamb switch
Once the door panels are off, zoom in on to the door jamb switch. In some vehicles, it can be a small plastic panel that fits into the upholstered panel; in others, it is shaped like a tube with wires attached to it. It is normally behind the door latch assembly.
Disconnect the wiring harness
Once you've located the door jamb switch, check out the back part and use needle-nose pliers to pull out the wirings that connects the switch to the door panel.
Replace the switch
After removing the old door jamb switch with a Phillips screwdriver, attach the new one to the wiring connectors. Then push the door panel back on the door and tighten the screws to secure it in place.
When you have installed the door jamb switch, put everything back into place. Then test the door again by closing the door and opening it again. Verify if the lights come on this time.