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Old Nov 16, 2006 | 09:55 AM
  #1  
muddog899's Avatar
muddog899
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Unhappy Remote mod control

Hey i think the control module for my truck doors if messed up it wont let me lock or unlock the doors I know its not the hand held remote becuase i have tried to reprogram 3 diff ones. so where is it located in the truck 2002 f 250 i looked under the dash but cant find it any help would be great
Thanks nash
 
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Old Nov 16, 2006 | 12:06 PM
  #2  
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guzzle92
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From: Northern Colorado
VSM - Vehicle Security Module
It is mounted on the firewall, just above the transmission hump and behind the radio. It has 3 multi-connector plugs to it and must be scanned and reprogrammed by a dealer into a new one. You can't just swap them out.
 
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Old Nov 16, 2006 | 12:26 PM
  #3  
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RAMPAGE_F350
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From: Central Alabama
Bob is right, he helped me out when mine went on the fritz.
 
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Old Nov 16, 2006 | 01:51 PM
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muddog899
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Thanks guys all have to have the dealer replace in less I can do it with auto int
 
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Old Nov 16, 2006 | 01:59 PM
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wla6518
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would this part also cause the vehicle to not start if its going out?
I have an intermittent problem with my alarm / security system, causing the truck to not start.
 
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Old Nov 16, 2006 | 02:28 PM
  #6  
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guzzle92
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From: Northern Colorado
Originally Posted by wla6518
would this part also cause the vehicle to not start if its going out?
I have an intermittent problem with my alarm / security system, causing the truck to not start.
Prior to 2002, the 99-01 did not have a VSM, it was called a GEM. I am not that familiar with the GEMs but I understand that they did much of the same functions as the VSMs now do. I believe that the GEM is located above or next to the under-dash fuse panel on the 99-01. It is possible that the (factory?) security system is tied into it and some owners have reported that a windshield water leak will drip on the GEM, due to its location and cause problems.
 
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