Dome light on?

Tiny
AMARYL
  • MEMBER
  • FORD EXPLORER
The dome light on my ford explorer 1996 is always on. I have to disconect the battery or it will lose the charge. I already try the dimmer switch. Does anyone know of a cause for the problem?
Thursday, November 1st, 2007 AT 5:53 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
This will be one of two thigs, either there is a pin switch that is stuck open or the GEM module is out here is the dome light wiring diagrams so you can see how the the works. I have also included the GEM location so you can change it out just in case you need it.

Here is some info on that

The following are inputs used for controlling the interior courtesy lamps to the generic electronic module.

- all door ajar switches (including liftgate)

- door handle switches

- illuminated entry request - from RAP module

- two step unlock - door disarm switches

All interior lights will shut off after 25 seconds (if all doors are closed) or:

- immediately after the ignition switch is turned to the RUN position

- or if the vehicle speed is above 8 km/h (5 mph).

If no wake up command is received and any of the doors are left open, the interior lights will turn off after 40 minutes when the battery saver times out.

The system is activated by raising the door handle (22404).

This action momentarily closes a switch mounted on the front door latch, which completes the ground circuit of the generic electronic module and switches the system on. The vehicle interior lamps turn on, remain on for approximately 25 seconds, then automatically turn off. During this 25 second period, the system can be manually deactivated by turning the ignition switch (11572) to either RUN or ACC position.

The system will be activated every time the door handles are operated. Opening the interior lamp switch from the inside of the vehicle will not activate the system.

If the door handle is held up indefinitely so that the interior lamp switch is continuously closed, the system will operate as normally and turn off after 25 seconds. At the completion of this cycle, if the door handle is still in the raised position, the system will remain off, and it will be impossible to activate the system from the other door handle until the raised door handle is returned to its normal position. This function is built into the logic circuitry of the system to prevent battery discharge, should the door handle be intentionally propped up or become jammed in any way.

Check out the images (Below). Please let us know what you find. We are interested to see what it is.
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Sunday, August 19th, 2007 AT 4:18 AM
Tiny
BMASTERJERRY
  • MECHANIC
  • 47 POSTS
I had this problem the GEM fixed it for me FYI
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Sunday, August 19th, 2007 AT 10:36 PM
Tiny
DENNYP
  • MECHANIC
  • 1,823 POSTS
Possibly a defective door latch assembly. The dome light switch is part of this latch.
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Thursday, November 15th, 2007 AT 6:16 PM
Tiny
T-MAN
  • MEMBER
  • 9 POSTS
Open door, look for push button switch. Use deep well socket to remove. Unplug it(dont let wire go back into hole!). If light is still on, plug back in and replace. Shut door and go to next door and repeat. One of those switches is bad.20 minutes work. Also try the GEM module
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Sunday, February 17th, 2008 AT 10:08 AM

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