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Door locks going crazy

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Old May 16, 2007 | 07:15 PM
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Default Door locks going crazy

From time to time the power door locks in my car go crazy. I can hear it clicking to lock over and over again. I've searched and seen alot of threads on locks not working, but nothing on door locks firing repeatedly. Can anyone help me figure out what the problem is? If its something in one of the doors whats the best way to figure out which door its in?
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Old May 16, 2007 | 10:05 PM
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Make absolutely sure your key fob switch labeled "PASSIVE" is in the off position. You might even try cycling it back and forth several times to clean and dust/dirt that may causing it to stay in the on position. If you continue to have problems, a key fob replacement is in your future. Some guys have been successful in snipping the connection inside that connects the motion switch (some call it the "rattle" switch) but if you're not comfortable going inside, just replace the fob.
HTH
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Old May 16, 2007 | 10:18 PM
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The fob is less than a year old. It still looks brand new. Could it be something other than the fob?
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Old May 17, 2007 | 01:37 AM
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Possibly, but I had the same thing happening to my door locks. I had replaced the battery but I didn't know the passive sliding switch needed to be turned off and on again after syncronizing the FOB's. That solved the eratic door lock problem for me, hope its that simple of a fix for you.
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Old May 17, 2007 | 11:45 AM
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Eliminate the fob possibility. Leave any fobs you have far away and walk up to the car and listen. If not locking, take one fob at a time with you to the car. When you find which it is, either clean the passive switch or clip the connection in the fob that works the passive (search passive fob). If it does it with the fob nowhere near the car, you have a different problem. Make sure you don't have a spare fob stored somewhere near the car.
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Old May 17, 2007 | 06:54 PM
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Thanks Guys. Ill give it a try.
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Old May 18, 2007 | 12:15 AM
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So I took the fob out of the car. Drove it around tonight and it is still doing it. Now what?
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Old May 18, 2007 | 12:32 AM
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Is it possible someone has hidden a spare fob somewhere in or on the car? If so and the fob battery gets weak, it will do what you are seeing.
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Old May 18, 2007 | 09:37 AM
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You could have bad door control modules. There is one in each door. They control the door lock mechanisms.
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Old May 18, 2007 | 01:06 PM
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I wonder if this is a symptom of a failing locking relay?

If so, you should be able to reproduce it by taking off the door
panel and hitting the door control module to simulate going over
bumps and such...
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Old May 18, 2007 | 01:21 PM
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You either have one or more of the following things wrong:
A bad door control module,
Shorted wiring in the accordion tube
A wet or bad BCM ( it located in the passengers foot well)

bc
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Old May 19, 2007 | 01:13 AM
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Thanks again all. I guess its time to start unplugging stuff and driving around....
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