Vehicle will shut off soon????

[Rhinebeck01]

Also... speaking of "shit" .... in case you want to know how pumpkin pies are really made...

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[gato]

All those error messages (power steering, service shifter, traction control not available, etc) are on high speed CAN Bus C. In order of probability the likely causes are:

1 - Loose grounds.
2 - Wire harness (front near the radiator, near transmission, etc) or CAN Bus connector blocks (behind glove box, under passenger seat) chafed or loose/bend connectors.
3 - Failing battery.
4 - Overtemp of engine or transmission.
5 - An actual mechanical issue (tiny minority of cases)

 

[viper88]

For those of you who primarily drive short trips, take it out once a week and put at least 20 miles on it, on the highway or driving in a "sporting" manner. The short trips never allow the battery to charge or the engine to fully warm up. This will help keep a full charge on the batteries and will also help keep condensation in the engine block from sludging the oil.

Using a battery maintainer or smart charger is not a bad idea. For any vehicle that sits and does not get driven often. You can buy pretty good ones for less than $40-$50.

 

[viper88]

.


@Heimkehr

Sure, with a some effort (not hard at all) an owner can remove the Aux battery and run with just the main battery. An hours+ work and after doing the deed it would be wise/prudent not to use the ESS feature or at the least, minimize it's use.... to push the ESS button or have an aftermarket device like a SmartStopStart unit or a Tazer JL deal with remembering to in essence push the button for you.. Anyway, removing the Aux battery is doable.. and no, never an EVIC message/code thrown with this approach.

Another way..... with a single inexpensive, fused bypass jumper and also removing the Aux battery Negative cable from the Main battery Neg terminal you can just bypass the Aux battery and run just with the Main battery. You can just leave the Aux battery down in it's holding box to do nothing.... With this approach you also would not want to use the ESS feature or at least minimize it's use.. and no, never an EVIC message/code thrown with this approach.

Yet another way is to keep and maintain and Aux battery and to bypass it with a fused bypass jumper along with the simple cable disconnect as mentioned earlier.. Do this and you run with the Main battery only and you have the Aux there to be used as a backup battery.... and no, never an EVIC message/code thrown with this approach.

AND, of course you can just keep the Dual Battery System as it was designed... Replacing the 2 batteries every 2-3 yrs. as needed.. Reality is, it is not that big of a deal for most anyone to change either one or both of the batteries...

.

Great info. This should be a sticky for ESS.

 

[viper88]

Also... speaking of "shit" .... in case you want to know how pumpkin pies are really made...

I will never look at the pumpkin pies at Costco the same ever again. As a matter of fact I will probably never have another piece of pumpkin pie again. Thanks!

 

[Rhinebeck01]

Great info. This should be a sticky for ESS.

@viper88

The info in that post I made in this thread has been covered over and over in a couple of long lived forum threads/in many posts...

Forum member @Jebiruph deserves mention/full credit, for long ago, bringing me (and other's) up to speed so to speak.... providing me (and other's) with valuable, spot on, info that added to the data base lets call it, in regard to the dual battery system on a JL and how to deal with it...

Jebiruph was posting info and diagrams here in regard to the dual battery system on a JL, long before you could find any info or diagrams regarding the dual battery system anywhere on the internet, let alone this forum.

Since approx. 8/19/18, I have been running with just the Main...... thanks to @Jebiruph (Jerry) and his sending me at no charge, a fused bypass jumper for my JL..... and then after that on 11/2/20 he sent me a more sophisticated dual battery monitoring system with dual meters that incorporated a fused bypass jumper...

Thanks to @Jebiruph, I have run with just the Main and using the Aux battery as mentioned as an approach earlier in this thread... I have never had an issue running with just the Main battery... No Evic lights, no codes thrown, no ESS messages, nada......

With that said, DO, check out any and all posts in regard to the JL's dual battery system that @Jebiruph has authored....

To be honest with you HIS .... @Jebiruph 's posts in regard to the dual battery system are the only ones I take to heart... that I know are not more then parroted/regurgitated crapola that you will find here or on other internet sites..

.

 

[viper88]

@viper88

The info in that post I made in this thread has been cover over and over in a couple of long lived forum threads/in many posts...

Forum member @Jebiruph deserves mention/full credit, for long ago, bringing me (and other's) up to speed so to speak.... providing me (and other's) with valuable, spot on, info that added to the data base lets call it, in regard to the dual battery system on a JL and how to deal with it...

Jebirupn was posting info and diagrams here in regard to the dual battery system on a JL, long before you could find any info or diagrams regarding the dual battery system anywhere on the internet, let alone this forum.

Since 8/19/18, I have been running with just the Main...... thanks to Jebiruph and his sending me at no charge, a fused bypass jumper for my JL..... and then after that on 11/2/20 he sent me a more sophisticated dual battery monitoring system with dual meters that incorporated a fused bypass jumper...

Thanks to @ Jebiruh, I have run with just the Main and using the Aux battery as mentioned as an approach earlier in this thread I have never had an issue running with just the Main... No Evic lights, no codes thrown, no ESS messages, nada......

With that said, DO, check out any and all posts in regard to the JL's dual battery system that @Jebiruph has authored....

To be honest with you HIS .... @ Jebiruph's posts in regard to the dual battery system are the only ones I take to heart... that I know are not more then parroted/regurgitated crapola that you will find here or on other internet sites..

.

I owned a eTorque so I never really paid much attention to the ESS threads. I only know a little about the early ESS issues from someone I know who works at Jeep. I think he said around 40% of early JL warranty issues were ESS battery-charger related?

I read through some of the threads by @Jebiruph. @Jebiruph is definitely a valuable asset to the forum. MUCH thanks to him and guys like you!

 

[dietch]

I owned a eTorque so I never really paid much attention to the ESS threads. I only know a little about the early ESS issues from someone I know who works at Jeep. I think he said around 40% of early JL warranty issues were ESS battery-charger related?

Its amusing how relevant these battery issues are and how many people are struggling with them. I currently have an appointment later next week (for my early 2018 JL) to have the dealer check both my main battery, aux battery, and the harness / relay / connection / whatever the hell it is that operates the ESS system. I have had the "Stop / Start Not Ready Battery Charging" message on my dash and a obsolete ESS system for about 6 months now. Originally thought it was just from me not driving enough but now in the past week the jeep has not been turning over as strong so unfortunately I think I have a shit aux battery that's now been draining my main batter for some months.

 

[zrickety]

Why is it that the modern cars go to "Shit Mode" when a battery goes bad?? My old cars just needed a jump start, and they ran just fine, until you shut the engine down. Hell, you didnt even need a battery, if you had jumper cables, and plenty of people around to help out, every time you needed a start.
Now, you are just S.O.L. it seems, if everything isn't running optimally.

Agree 100%. My wife's Honda Pilot had a misfire, went into limp mode...dash lit up like a Christmas tree. Wouldn't shift, could barely drive it. Temporary fix was to disconnect and reconnect the battery. I thought maybe it was an ignition coil. No, the whole issue was a dirty air filter. Replaced that and never had it happen again. Talk about overkill.

 

[zrickety]

You can't just remove the ESS battery. It more complicated then that. Way above my pay scale. Lol.

Supposedly early 2018s had ESS issues and revisions were made along the way. I am surprised ESS is still problematic in newer models. Probably not a bad idea to replace both the main and ESS batteries every 3-5 years as a precaution.

Can't you remove it and use the N1, N2 jumper? Seems like an acceptable fix to me.

 

[aldo98229]

What is it with these one-hit wonders that create an account, write one single post like this, and then never ever return to the forum...?

I’ve seen this a few times now.

Hmmm...

 

[TJJL19]

So disappointed in my jerp waiting on a tow truck to pick up my 2019 jeep wranglsr sport. It said to pull over that it was going to shut down soon.

It also would not turn off the accessories. Fans kept running, windshield wipers started by themselves, radio stayed on, ect. Messages on the dash included blind spot disabled, power steering service, auto start/stop disabled, service transmission.

Ugh help!!!!this is the second time I'm having to have it towed for this issue!!!

I have a JLU V6 ESS auto and some wearied things been happening, when I start it the radio doesn't come on sometimes, don't know if it's the switch of something else.
I hope this is not like the Chevy's I've owned, bad electrical system.
If I had the money I'd buy a 392, because it doesn't have ESS.

 

[mwilk012]

I have a JLU V6 ESS auto and some wearied things been happening, when I start it the radio doesn't come on sometimes, don't know if it's the switch of something else.
I hope this is not like the Chevy's I've owned, bad electrical system.
If I had the money I'd buy a 392, because it doesn't have ESS.

Much worse, it has MDS.

 

[zrickety]

What is it with these one-hit wonders that create an account, write one single post like this, and then never ever return to the forum...?

I’ve seen this a few times now.

Hmmm...

Bronco bros?

 

[brewdad]

Also... speaking of "shit" .... in case you want to know how pumpkin pies are really made...

I can't un-see this!! I'll never be able to eat pumpkin pie again.

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