Interior light issue - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 01-12-2012
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Interior light issue

When i open my doors on my 98 the interior lights don't come on. I can turn it on at the light so i know the bulb is good. Just got the truck last week. so i don't know if the p.o did something.?? any help
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Old 01-12-2012
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When you open your door and the keys are in the ignition does the dinger ding?
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Old 01-12-2012
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yes its dings. also the outside cab light not working ?

Thanks
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Old 01-12-2012
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Does the cargo light work when switched on? I would look into the door switch
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Old 01-12-2012
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Lube the latch, I would use brake cleaner first to get the gunk out. Then use some silicone spray.
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Old 01-12-2012
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Now when you say lube the latch, are you talking about the closing and locking latch?
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Old 01-12-2012
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No, I mean rinse the grim out of it then spay a lubricant into it. The switch that controls light lives in the latch, its just preventive maintenance. Not saying its going to fix your issue but it is a common problem.
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Old 01-12-2012
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ok.
Thanks
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Old 01-13-2012
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If the key reminder is working the GEM is getting ground signal from the door switch. So I would rule out the door switch as the problem. It more then likely would be the interior lamp relay and or its associated wiring or possibly the GEM itself.
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Old 01-13-2012
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OK I will look into this weekend,
Thanks
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Old 01-14-2012
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Quote:
Originally Posted by Rev View Post
If the key reminder is working the GEM is getting ground signal from the door switch. So I would rule out the door switch as the problem. It more then likely would be the interior lamp relay and or its associated wiring or possibly the GEM itself.
I wouldn't rule out the door switch just yet, you have to remember there are 2 of them the driver and passenger door can both control the dome light.
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Old 01-14-2012
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Hey thanks. where is the interior lamp relay located at.
???
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Old 01-14-2012
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I wouldn't rule out the door switch just yet, you have to remember there are 2 of them the driver and passenger door can both control the dome light.
Yes, both door switches control the dome light. However, I believe the driver’s door controls the key reminder. Since the OP is stating “Doors” in his original post one has to assume neither door currently activates the dome light.

Later in this thread he states the key reminder works. This would confirm the driver’s door switch is functional and providing chassis ground to the GEM with the door open.

When the GEM sees ground from either door switch, it provides a ground to the interior lamp relay, activating the dome light.

Since neither door switch is activating the dome light but can be manually activated via the dome light switch, the most likely common item would be the interior lamp relay, its associated wiring, or the GEM is not providing the ground signal for the lamp relay.


Attached Thumbnails
Interior light issue-domelightcircuit.jpg  

Last edited by Rev; 01-14-2012 at 01:45 PM.
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Old 01-14-2012
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Quote:
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Hey thanks. where is the interior lamp relay located at.
???
I believe its in the auxiliary relay box located under the dash just to the right side of the steering column.
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Old 01-14-2012
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Thanks alot i will check that out.
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Old 01-14-2012
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Never said lubing the lock would fix the issue but it is preventive maintenance.

And in 98 the interior relay is behind the pass air bag.

Last edited by Blhde; 01-14-2012 at 05:36 PM.
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  #17  
Old 01-15-2012
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Ok its working now. Cleaning both door locks did the trick.
Thanks alot everyone
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Old 01-15-2012
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Quote:
Originally Posted by Randyranger View Post
Ok its working now. Cleaning both door locks did the trick.
Thanks alot everyone
Glad to hear it was a simple fix.


Quote:
Originally Posted by Blhde View Post
Never said lubing the lock would fix the issue but it is preventive maintenance.

And in 98 the interior relay is behind the pass air bag.
The two mandatory in-cab add-on's for Rangers is the Mag Light holder and WD-40 Holder
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  #19  
Old 01-15-2012
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WD-40 is garbage with a good marketing campaign, to top it off its mostly mineral oil.
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