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I think "WE ALL" have finally got the frickin symbol off the instrument panel & fixed. At Jebiruph's suggestion I did find a code P00FD. I researched that and decided to charge up the AUX battery from the top. Mine is a 2020, so I found an example photo of this set up. I was about to remove...

Understand.

You are right. The code P009FD is there. Even though the battery is brand new (date code 02/25) and I charged it before install (12.8 VDC) something has drawn it down. Can I charge it from above to see if it holds a charge. I hate to pull that tire and inner fender again. Right now the Main is...

No, I forgot about checking codes. I will go and check that before I pull the IBS again. Thanks

Do I need to remove it from the post holder as well.?

OK. I will remove the IBS again and let it set overnight. Thanks

You are correct in that I did leave them apart but, at that time I had already disconnected and removed the AUX battery and had the cables secured. Since then I went out and removed the entire negative assembly, dissassembled all connections from it , and let it sit on my bench for over an...

Update, The center dash panel cluster originally had both the little Symbol in it, service your ESS system message but now it only displays the little symbol. I don't know if the message times out after a while or not. I hate to say this but now my cameras have disappeared from my system. It...

Yes and I did completely remove the IBS for an hour before reinstalling it

I may have misled you with my verbiage. I DID Replace both batteries. I just charged them before I installed them. Got the bigger 220CCA Odessey AUX and the bigger 850CCA Odessey Main battery. I have rechecked the X/N array and all ohmned good. It seems to run fine. I have put about 30 miles on...

The one in the instrument cluster,

Thank you. The warning symbol in the instrument cluster along with the service system message. The entire connection on both the battery terminal post when reinstalling the new batteries.

Thanks. BUT as I said to Jaxmax after doing all that the ESS LIGHT STILL COMES ON, even if I pull F 42. If I recall correctly just as it was going out of warranty, I took it into the stealership with this problem and he just said there is an inherent problem in this system. Any more suggestions...

I do not know if you have seen the post I left Jaxmax. If you get a chance would you check it out. Thanks. Ray

I opted out for the mopar ones and picked up 2 for $132. I will keep a spare now. However after replacing both batteries (recharging them both prior to install), [the aux one first with] all terminals still isolated, very carefully installing the new X/N fuse array and all associated terminals...

Jack, that is what it was. A blown N3. Again thanks for your help. Ray

My intent was to evaluate a dual battery install vs a new AUX Battery install is why it "seemed" to a lot of run around to you and others who did not read all the post. But I appreciate your insights. Ray

I have had the same procharger set up on my 2020 for about a year now. Have not noticed any problems yet. It has developed a whine that it did not have in the beginning, Gas mileage sucks, but it always has with this vehicle. I wish the power curve came on quicker. 3500 is too late for me. I...

Thanks for the information. Unfortunately I have already ordered a couple from Mopar Wholesale parts. On this one I wanted OEM parts from MOPAR. I do thank you.

Thanks again for all assistance. I will follow up. One last thing I was leaning toward odessey batteries as they make a combo. Do you have a strong allegiance toward any particular brand. I used to buy X-2 from batteries plus.