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F250 Diesel electrical problem

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Old Jul 18, 2008 | 10:07 PM
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F250 Diesel electrical problem

I have a 2002 F250 with a strange electrical problem. My door ajar light is always on, the interior lights do not come on when the doors (all 4 crew cab) are opened, the chime doesn't chime when the key is left in, and the radio stays on when the door is open with the key off.

I checked all of the fuses, and every one is OK. We replaced the driver front door latch switch, didn't help. In fact, it might of made it worse.

Any ideas?
 
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Old Jul 18, 2008 | 11:14 PM
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Just a heads up as I see you are new to this forum. You posted this in the 2009 F150 section. You will get better results if you post it in the correct section which is a little further down the page.
 
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Old Jul 19, 2008 | 07:13 AM
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Originally Posted by tmitchell5188
I have a 2002 F250 with a strange electrical problem. My door ajar light is always on, the interior lights do not come on when the doors (all 4 crew cab) are opened, the chime doesn't chime when the key is left in, and the radio stays on when the door is open with the key off.

I checked all of the fuses, and every one is OK. We replaced the driver front door latch switch, didn't help. In fact, it might of made it worse.

Any ideas?

SEARCH "windshield leak"

Steve
 
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Old Jul 19, 2008 | 08:10 AM
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Welcome to FTE. One of the common issues for this is a sticking door latch. Spray them down really well with WD-40 and see if that fixes the problem.
 
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Old Jul 19, 2008 | 02:00 PM
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Thanks I'll try that.
 
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Old Jul 19, 2008 | 08:03 PM
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If spraying the latches doesn't fix it, it is most likely your VSM that has gone out. (Vehicle Security Module)
 
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Old Jul 19, 2008 | 09:44 PM
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Are the VSM expensive to buy?

Thanks
 
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Old Jul 19, 2008 | 09:52 PM
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Like $140 for the module, plus another hundred or so for the dealer to program it. Try the simple fix with the wd-40 first though. The VSM is inside the cab, on the firewall above the transmission tunnel. It is just above and to the right of where the accelerator mounts. It should have three wiring connectors on the bottom side.
 
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Old Jul 20, 2008 | 08:51 AM
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OK, I WD'd the heck out of all 4 latches without fixing it. I pulled the radio, and I can see the module, but it looks like a 12 pack job just getting to it. I guess my next question is, what harm will this thing do if I don't replace it right away? Can I wait until money is a little better next month? I'll just do the BOHICA (bend over here it comes again), and pay someone to replace it because I don't want to get into taking out the dash. I don't have the time to get into an all day project right now.
 
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Old Jul 20, 2008 | 09:06 AM
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Go to the Superduty tech folder, there is a link for the service manual, under group 17-Lighting is the procedure for testing
https://www.ford-trucks.com/forums/73...ml#post6144864
 
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Old Jul 20, 2008 | 09:07 AM
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Sorry that link will not work but it tells you what your looking for in the tech folder
 
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Old Jul 20, 2008 | 09:07 AM
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You're kind of stuck with the BOHICA anyway. Even if you wanted to replace it yourself, you still have to have the dealer program it as mentioned above.
 
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Old Jul 20, 2008 | 09:31 AM
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You should not have to pull your dash to remove it. The most you should have to pull is the dash bezel immediately around the radio, and then the trim panel immediatelly below the radio (in that order, unless you wanna break something). I think it is a 10 mm nut with a deepwell socket is all it takes to pull it.
 
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