I have seen the battery have an internal short so I would change that out first to see what happens, also grasp the wiring harnesses and move them around to see if you can duplicate the problem which can help us pinpoint the issue. Also, I would run 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
Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:
https://www.2carpros.com/articles/how-to-replace-a-car-battery
Check out the images (below). Please let us know what happens.
Images (Click to make bigger)
SPONSORED LINKS
Friday, July 28th, 2023 AT 12:41 PM