Will not start, engine lights flicker?

2012 CHRYSLER TOWN AND COUNTRY
157,000 MILES • 2WD • AUTOMATIC
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QAJUN47
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Yesterday and now this morning too my husband went to start our van up and it wouldn't start. We just got the alternator replaced a few months ago. The dash lights flickered weirdly. He took a video of it. I'll try to attach the video.

Edit: It started fine when I went to start it a few hours later and every time after that until my husband had it at work overnight again.
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Aug 4, 2023 at 5:34 AM
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STRAILER
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Thanks for the video. This starts to happen when the TIPM (totally integrated power module) or ICM (instrument cluster module) is going out, but to be sure we should do a CAN scan, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

If codes come up for the TIPM it is easy to fix because it self-learns, you can get a preprogrammed ICM by searching Google or Ebay. Check out the images (below). Please let us know how it goes.
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Aug 4, 2023 at 1:02 PM
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QAJUN47
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Thank you for your quick response. I found out after I posted this that my husband leaves the accessories on for long periods of time throughout the night. He does outside security so spends a lot of time in the vehicle keeping lookout. A diy mechanic friend thought it could be a weak battery after hearing that. Does this new information change your response?

Thanks so much!
Aug 4, 2023 at 3:04 PM
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STRAILER
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Yes, it could be the battery if the engine will not crank over after this problem occurs, this guide can help you see if this is the problem:

https://www.2carpros.com/articles/car-battery-load-test

Please go over this guide and get back to us.
Aug 5, 2023 at 10:08 AM
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QAJUN47
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We ended up replacing the battery and it solved the problem so far. Hopefully that's it and nothing else will pop up for a while. Thank you so much for your advice and guides.
Aug 6, 2023 at 9:12 PM
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STRAILER
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Thanks for letting us know, we are here to help, please use 2CarPros anytime.
Aug 7, 2023 at 10:35 AM