Question about 2004 Dodge Caravan

2 Answers

Code what does it mean

I replaced the ecm on my 2004 dogde caravan, I know this was the problem I had local dealer put on simulator, now after replacing that my van put this code out P2302 ignition coil A secondary curcuit malfuncution. what is this and how do I fix?

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  • smullins Oct 07, 2009

    Can I do all of these myself, and how do I start to test for these issues?

  • smullins Oct 07, 2009

    I just found out that when the new ecm was put on is when it started having these other issues, but when the new one was taken off and old one put back on it did not have them. It runs but not right and misses but the transmission works. The reason for new ecm was the test results and van had shifted hard the engine light can on and it dropped in to lower gear and would not shift out of the lower gear. Do you think my new ecm is not programed correct for my van?

  • smullins Oct 07, 2009

    When it first started we were in a traffic jam and began to move forward, our van jerked as if to be bumped from back but no car was there, we then noticed the engine light on and that the van was running in lower gear and would not shift out of it, we had it towed to trans. shop and they did not think it was trans, but the computer,so we took to local dealer and they ran the simulator and it came back that it was the ecm, they wanted 750.00 for one, I found a remanufactured one from national parts and order it we have a friend who works some one cars, it was to be plug and go no flashing, so last evening the new ecm was put on and thats when the missing started, new one took off and old one back on and it stopped but the original problem was still there. my van does run just will not shift out of lower gear. thats why I wonder if the new ecm was not programmed correct for my van?

  • smullins Oct 07, 2009

    yes with the old one it just will not shift out of lower gears but with new is when it started missing. I think it was not programmed correct and will be contacting them. Thanks for your help. If the problem does not change with another ecm I will try the first set of suggestions with the p2302 code.

  • smullins Oct 07, 2009

    Thank you very much, this has helped.

  • smullins Oct 07, 2009

    Took my 2004 dodge caravan to my chrysler dealer because it would not shift. They put it on their simulator and found that the ecm was bad. I ordered an ecm that was programmed to my vin of my van and it was supposed to be plug and go with no flashing of new ecm. When i installed the new ecm my van shakes like it has a bad miss to it and will spit and sputter with no power but it does shift. I took it out and had it tested again and it gave me a code P2302 Ignition Coil A Secondary Circuit Malfunction. I then took the new ecm off and put the old back on and the van ran fine, just would not shift.

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  • 1,986 Answers

This code is for your Ignition coil #1 secondary circuit

This can be triggered by a bad spark plug, bad ignition coil, or a bad ignition wire.

Most likely, one of those will need to be replaced.

I can't say which is the exact cause of the issue.

Posted on Oct 07, 2009

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  • super_guy Oct 07, 2009

    You can test each spark plug, but disconnecting the wire as the engine is running. If it runs rougher, then that plug was good. If there's no change, then that plug may be bad. If it runs rougher, it could also mean the wire is bad.



    To test the ignition coil (you may have one coil for each spark plug,
    or one for every two plugs, this part I am unsure of with your model)
    remove the wire from the plug and then remove the spark plug, then put the plug into the wire (DO THIS WITH THE CAR OFF). Start the car and while using INSULATED PLIERS touch the plug tip to a good ground spot such as the frame even the engine itself, but not to the battery. If there's a spark or crackling sound, then that coil is good.

    You can test each wire by hooking it up to a voltmeter and setting the resistance to 20,000 OHM.
    The reading will vary based on the length of wire. 12inch wire may register 6-7 while a 30inch wire may register 8-9. If it registers below 6 regardless of length, then the wire should be replaced.

  • super_guy Oct 07, 2009

    It doesn't sound like an issue with the ECM based on the fact that you said your car was running a lil rough prior to the change and I assume that it's still running a lil rough even after the ECM change

  • super_guy Oct 07, 2009

    If it was just plug and go, then it sounds like it could be the ECM. I thought that your car was running rough with the old ECM, but it's only running rough on the new ECM.

  • super_guy Oct 07, 2009

    what I'm wondering with the new ECM if it was programmed for your exact model, or another model of a caravan as this could effect it.

  • super_guy Oct 07, 2009

    Good Luck

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  • Master
  • 691 Answers

P2302 has to deal with your ignition systems, I hope is something basic, with this code I seen much worse and can be very complicated issue. For basic, I would check all your plugs and wires and coil make sure they are in good and working properly; have the coil tested. if those check out, then check your cam sensor, it can be faulty. what cam sensor does it senses the cam turning and send info to the ecu, ecu than tell the coil to disperse pulse of sparks to the plugs.

Posted on Oct 07, 2009

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