1998 Dodge Caravan was locking repeatedly while sitting with the ignition switch off. I removed the interior door trim panel and spread the two switch wires apart and the repeated locking stopped.
It now locks automatically while sitting with ignition off, then periodically continues to make locking noise while sitting. While driving the locks automatically lock at about 16 mph as advertised and do not continue to relock. I'm thinking of replacing the sliding door switch but can't see how to since the switch is behind the metal door frame. I don't think the BCM or lock relay is the culprit.
What do you think.
Do you know how to do automotive electrical testing with volt meter ? Do you know what a wiring diagrams is , how to use it to test electrical wiring ? One of the door switches could be the problem ! Find wiring diagrams here http://www.bbbind.com/free_tsb.html .
Door Locks Go Crazy 1
Door Locks Go Crazy 2
Door Locks Go Crazy 3
SOURCE: 1996 Dodge caravan--dash guages flicker
In responding to rbenjami, I am not proposing the same solution for all who claim to have a similar problem because I don't believe that that is the case. When the gauges flicker periodically it may be a case of a bad body computer, which is a big deal and may be covered by warranty beyond the normal 3 yr./36k miles. For those with issues related to use of seat warmers, that is not uncommon and should lead to discontinued use.
SOURCE: Door locks dont work
2 things I would try before replacing an expensive BCM. Disconnect your battery for 5 minutes or so, then reconnect, and see if that helped at all. I have heard in some cases it worked successfully. If that doesn't cure it, I would go to the plug on the BCM itself, (with battery disconnected) and pull the plug off, inspect it, and clean it & mating pins on BCM very thoroughly with contact cleaner or similar electrical cleaner. Add a little di-electric grease to connection & put it back together nice & tight & see what happens. The BCM is usually located on passenger side in kick panel area,(by right foot when sitting) either behind kick panel or above it.
SOURCE: 2002 Dodge Grand Caravan Driver Door Lock/Unlock Switch
sorry not sure the 12v prob will help this swtich works on 5v off 3v unlock 1v lock single wire lock/unlock logic signals
I found wiring diagrams at
http://www.dodge.com/bodybuilder/2004/docs/wd/rswd/tc.pdf
it is 2004 but use the wiring diagrams to test the wires
(most likely to fail where they flex)
because it is using logic gates disconnect the plug at each end of the wire you are testing or the damn thing will find a few diffrent ways to trick you.
SOURCE: 2006 Dodge Caravan - ONE power door lock stopped working
i have replaced many sliding door lock actuators on these vehicles..dealer part..mostly on passenger side sliding door..also possible you have a broken wire in door track harness..follow wiring from door into what looks like a plastic chain in door track at door opening
SOURCE: part # and price for BCM 1997 dodge caravan elect
You'll have to call local dealer, or if you want to take a chance with used at auto wreckers, it will have to be exact same part number, but personally I don't recommend that. Here's a number to call for rebuilt BCM's gauranteed, that will, if nothing else give you another option. New is probably $800- $1000 unfortunately. 1-877-388-5889. (http://www.proautotronics.com/index.html )
There is always a chance that removing connectors attached to it, and cleaning well with contact cleaner or electrical cleaner (tuner spray cleaner from radio shack) may jsut be a cure if your lucky as well. I certainly would try that before spending that kind of money on a new module.
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