You need a normally closed SPST momentary switch. There are several different kinds available at Radio Shack.
there is a little plunger switch where the door closes (between the hinges) that will need to be cleaned or replaced...
you probably have a bad door light switch in your car, you need to check ever switch in the system its 5 ( 4 doors an a tail gate) I bet you one is defective.
Most likely the door jamp switch is bad. You will need to replace it.
On a 2008 Chevy Silverado, the driver side door switch or sensor is typically located within the door assembly, often mounted on the door latch mechanism or as part of the door lock actuator. To access it, you generally need to remove the door panel. This switch is responsible for detecting whether the door is open or closed and may also control the interior lights. If you're having issues, checking for loose connections or damage to the switch is a good start.
== ==
The switch should be the same as your headlight switch. If not then you will either need to install your own switch for the running lights or buy a new OEM switch module.
There's no need to "add" it. It's built into the driver's door by the window switch. There is a button that locks out the windows & the rear door locks. Push it and it lights up yellow.
there are a couple of settings you need to turn the light off at the light switch. it will then only come on if a door is open any time you want to use it ,you can switch it on or off at the light switch you can turn it off at the light switch on the dash it will then come on when you open a door any other time you want to use the cargo light you can switch it on or off at the light switch
To wire 2 lights to 1 switch when the power source is at one of the lights, you will need to connect the power source to the first light, then run a wire from the first light to the second light, and finally connect both lights to the switch. This setup will allow you to control both lights with a single switch.
If you have a 12volt tester, connect the clip end to the body of the car, next touch the probe end to the wire that the bulb is connected to. If the door switch is working and the door is open, the light on the probe will light. This circuit will go from the light through the body frame to the door switch and the problem may be in the door switch. These switches are mechanical and will rust out and need replacing, as rust becomes an insolator from the body ground.
This is caused by a defective or misaligned door ajar switch. You need to get a wiring diagram and verify open-closed switch function of each individual sensor. If you have the wiring diagram please post. You are not alone!Answerlook here -> http://www.cartrackers.com/Forums/live/fordwindstar/20.html
That is actually a door switch problem instead of an alarm problem. Find the door that is not registering as closed and check out the little switch by the hinges, you might just need to spray it with some WD40.