Question about 1996 Plymouth Voyager

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Does the BCM in a 1996 plymouth voyager control the ECM?

I am totally frustrated as the van has been in the repair shop for a month. In Dec 2011 the ECM (which I was told controls my instrument cluster panel) was replaced on my van with a 1 year warrant. In Oct 2012 I started to have the same problems with my instrument cluster panel as I did in Dec 2011. Same repair place is telling me this time that they are having trouble finding an BCM for my 1996 van. Since the ECM has a 1 year warrant on it I am wondering if I may be getting the run around. Are they calling the same part by 2 different names to make me think that it is a different part and they get out of honoring the 1 year warrant? Does the BCM control the ECM? Why would a BCM be needed when last year it was the ECM that was replaced? Since I am having the same instrument cluster panel problem is it possible that the BCM is not controlling the ECM correctly or are the ECM and BCM not related to this problem at all? They are stating the BCM was sent from a dealer and never arrived. Today I had to search on line to find a place that repairs BCM and send the part myself to the BCM repair shop. Can someone please give me some idea as to what BCM and ECM are in relation to this problem I am having with the instrument cluster panel. Thank you.

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Body control module BCM controls body functions like ac,doors,gauges, and the related while the ECM controls engine management systems, and have little inpact on each other chrysler was the first to network these systems together on a high speed hardwired network ecm relays temp data oil pressure alt voltage and mileage maybe a couple other things i cant remember off the top of my head all that goes to the bcm then is sent to the instrument cluster so it is very possible to have the same problem caused by to seperate modules with that being said in less than a year i think they better look closely at the connectors and pins in the wiring i have have multiple problems with the connectors on these models hope this helps

Posted on Dec 05, 2012

  • Amanda Cary Dec 08, 2012

    Thank Brian I wasn't sure, however I have learned more from your posting. I got the part back from the repair place and sent it to a Electronic Control Modula place in jacksonville to be repaired. Hopefully I will get it back in a few days and can get it installed and back on the road. I am disabled and must use an electric moblity device which I load into my van. To not have my van for work for over a month has been quite a hardship on me. I sure hope installing the repaired module will not cost a huge amount.

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SOURCE: 1996 Plymouth Grand Voyager -horn and cruise

Check your horn connection at the horn and check your cruise control vacuum line at the brake master cylinder.

Posted on Jul 19, 2009

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SOURCE: instrument cluster inoperative, transmission shifting problems

These vans have had issues with the PIN connections to the instrument clusters. With time the solder on the main PIN connection will begin to fail. The good news this may be repaired at home. First you'll need to remove the instruments. To do so remove the dash components from around the instruments then the (4) screws) that hold the instruments in place. Carefully detach the wire connection from the back of it; take to a well lit area. Look for a PIN with a failed solder joint (this will appear as a slight black or grey circle. If found apply heat and let solder begin to flow; the allow to cool and reassemble. If you look at my history you'll see I've helped others with this issue. The attached link may help: http://dodgeforum.com/forum/dodge-caravan/197192-99-grand-caravan-intermittent-dead-dashboard.html

As for the transmission I expect this a seperate issue, possibly the BCM but I'd like to review further.
Please let me know if this assisted you,
Tom

Posted on Nov 06, 2009

  • 1 Answer

SOURCE: I need to replace the body control module (BCM) of

Sorry to tell you this but you cannot do this yourself. My 98 plymuth grand voyager has the same problem. You must take it back to the dealer in order to take it replace. You can't even take it to a garage.

Posted on Mar 07, 2011

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SOURCE: need wireing digran for 1996

When the ECM is replaced you need to have it reprogrammed. It may run the engine for a bit but there are t many variables to keep it going. Some auto parts stores are doing this now. call around. Much cheaper than a dealer. If you had it reprogrammed then you need to check the codes. This will give a direction to go.
Randy

Posted on Jun 09, 2011

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