Programmer and ESS/Battery issues.

[Puch]

Hope I don’t start a ? show, but here goes.
I have a 2020 JT with 12k on it. I always tried to turn of the ESS before driving. Like most of us I occasionally would forget and the ESS would kick in without fail at the first stop
This went on until this winter when I installed my tazer. I quickly forgot about the ESS until I unmarried it for a dealership visit. On my way there I noticed the Jeep didn’t turn off at the lights?? Picked up the Jeep the next day and noticed it still didnt work on the way home (30min). Scroll to the ESS menu and get the not ready batt charging message.
I called the dealership and was told that I don’t drive it enough bla bla bla. We all know the line. So, I currently have it on a conditioner.
I’m curious if the majority of us with battery issues have used or are using the tazer ESS disable future? Could it be possible that the Tazer is causing a permanent problem once that feature is used and then shows up at some point, even after it’s unmarried?
I noticed only a few people mentioned they had the problem and then purchased the tazer. Many people mentioned that they have the tazer and are having the problem. Not sure how to find the answer? Maybe a poll?

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[Beemer533]

I had battery issues, not really ess issues long before I installed my Tazer.

I originally had a smart stop start eliminator (basically since October when I first got the truck) , but all that does is basically tell the ecm you hit the button to turn it off.

Either way, I've had both batteries replaced now since January (the Aux battery shortly after I installed the tazer) but I don't really see any correlation personally.

 

[Mr._Bill]

The Tazer is not the issue. The 'smart' charging system in these takes a long time to fully charge the batteries (like 8+ hours continuous driving). The majority of the ESS problems are from bad batteries and IBS issues. Using a battery tender will help, if the truck is not driven regularly, but make sure it is AGM compatible.

 

[DobaMark]

I had to vote for after, but I think it's unrelated. I used JScan to set DRLs and tire size. Stop/start worked fine for over a year. But now the battery charging message is common, though after putting my Gladiator on trickle charge again the message is gone.

 

[Rockabillyroy]

I didn't consider this before, but mine stopped working. It might have been after I used JScan for my tail lights. Could be purely coincidental.

 

[IamPro2A]

If you are really trying to isolate the problem and NOT just start a shit show, you should include options for "No problem and using a programmer" and No problem, not using a programmer".

 

[ShadowsPapa]

Hope I don’t start a ? show, but here goes.
I have a 2020 JT with 12k on it. I always tried to turn of the ESS before driving. Like most of us I occasionally would forget and the ESS would kick in without fail at the first stop
This went on until this winter when I installed my tazer. I quickly forgot about the ESS until I unmarried it for a dealership visit. On my way there I noticed the Jeep didn’t turn off at the lights?? Picked up the Jeep the next day and noticed it still didnt work on the way home (30min). Scroll to the ESS menu and get the not ready batt charging message.
I called the dealership and was told that I don’t drive it enough bla bla bla. We all know the line. So, I currently have it on a conditioner.
I’m curious if the majority of us with battery issues have used or are using the tazer ESS disable future? Could it be possible that the Tazer is causing a permanent problem once that feature is used and then shows up at some point, even after it’s unmarried?
I noticed only a few people mentioned they had the problem and then purchased the tazer. Many people mentioned that they have the tazer and are having the problem. Not sure how to find the answer? Maybe a poll?

Most likely taser isn't involved, it just happens that while you had it installed and ESS was never triggered, you had things happen like others have had happen - including me - where the batteries never get fully charged and don't get charged quickly enough while driving for ESS to be triggered.

These trucks have major charging system and battery issues. These don't behave normally. I've never seen a vehicle that had to be driven 8 hours every single day to keep the battery(batteries) charged. I can fully charge a battery with a light weight plug into the wall battery tender in a fraction of the time. That tells me - there's real issues with these things.
ESS not working is a symptom of other things, IMO.

Any vehicle you have to keep plugged into the wall should get you a green credit, no gas powered vehicle should have to be plugged in every week just to keep things working correctly. That's a crock.
My guess - it's a PCM programming issue along with other "problems". Jeep has had battery issues going back at least to the 2018 Grand Cherokee, according to a local dealer. 2 years old and the batteries in my wife's 2018 WK2 were toast and had to be replaced because it wouldn't start - at all - without a jump.

 

[ShadowsPapa]

If you are really trying to isolate the problem and NOT just start a shit show, you should include options for "No problem and using a programmer" and No problem, not using a programmer".

OR - problem and NO programmer.

Mine has issues, and I have no taser.
Software programmers, or hardware like the taser isn't the issue. All the hardware like taser does is tell the PCM you have pushed the turn off ESS button as soon as the vehicle is started.

 

[WhyNotJeep]

Well this is turning into a recall issue. No ESS due to low voltage could be a battery killer. Didn't pay $60K+ for something I have to keep on a battery tender. Where is Jeep Cares on this?

 

[ShadowsPapa]

Well this is turning into a recall issue. No ESS due to low voltage could be a battery killer. Didn't pay $60K+ for something I have to keep on a battery tender. Where is Jeep Cares on this?

It's weird that the dealerships are just sitting back and replacing thousands of batteries (the local shop had told me in 2020 they'd replaced dozens and they are a small shop)
And - that the voltages remain so low as far as battery state of charge, and never fully charge in the vehicle for many of us. Some are checking and finding voltages of over 12.60 and that's how it should be. Even at 12.8 with a parasitic draw of the "system" waiting for you to unlock, etc. - it should read 12.6 because the draw is extremely small (normally)
Jeep programming must be off for these things to sit so often at 12.1 or so volts and ESS never kick in after 40 minutes of driving......... that's crazy as AGM batteries, if charged properly, charge faster than normal wet batteries, a lot faster. That's the advantage - quick charging.
Where the great guru of Jeep programming - can he see where this sits in the PCM as far as voltage control? I have found a whole page or so of battery settings in AlfaOBD under Jeep.......
So, either the batteries are truly bad, or the IBS never works correctly in these, or the PCM programming for battery maintenance is way off or something else is going on.
No one should ever have problems letting a vehicle sit for a week - or in my case, 2 or 3 days, and have a battery that never fully charges. Again, if AGM batteries are not "maintained", if they are never fully charged, over and over the max is about 70%, they get to the point they can't be fully charged and the life is cut short.
A good AGM charger actually over-charged them a bit, 15 volts in some cases, and takes the battery up to 13 volts. I'd jump up and down and celebrate if mine ever sat at 12.6 after a long drive.

 

[WhyNotJeep]

After sitting for 14 hours it's at 12.71V (fluke77) Put the truckle charger on and it is back up to 13.38 and leveled off but still charging. All fuses and relays look ok. There is nothing in these 2022 Gladiators that has not been around for a few years so this can be solved.

 

[ShadowsPapa]

After sitting for 14 hours it's at 12.71V (fluke77) Put the truckle charger on and it is back up to 13.38 and leveled off but still charging. All fuses and relays look ok. There is nothing in these 2022 Gladiators that has not been around for a few years so this can be solved.

I sure wish mine would get to and sit at 12.71 for 14 hours........
I agree, this system has been around a while and in multiple Jeep vehicles. It's the same thing our Grand Cherokees have had for years.

 

[WhyNotJeep]

OK I am an idiot. If the AC is on the ESS is off. Turned off the The AC and now the ESS is ready and does work. I almost always have the AC on for the dog. That aux battery is not easy to R&R so I'll just leave the ESS off.
The electronics on these things will take some time to get used to for me, but I'll get it someday. That fuse box and wire loom is a work of art that I never want to mess with. Glad i got the aux switches. This thing is not a CJ5,,, LOL.

 

[ShadowsPapa]

ESS works with ac on. Just not max ac

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