eTorque ESS is always "not ready"?

[kah.mun.rah]

If it is your original 2020 battery, it might be worth just getting a new battery as step 1. If you take it to the dealership and they confirm that it is your 12V, they probably will charge you the diagnostic fee which will be close to what a new battery will cost anyway.

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[John VonJeep]

Thanks ... but that link doesn't work because you took a screenshot of it. I ended up finding this coverage myself in the "Warranty - Gas" booklet at the Mopar.com site. It's great to know that I have warranty time left here, so I'll get in touch with the dealer if I can't diagnose the issue myself.

Yes, I am well aware that screen shots don’t include working links. Just trying to help, bud. Good luck with your problem.

 

[4a4c55]

If it is your original 2020 battery, it might be worth just getting a new battery as step 1.

It is the original battery, but I don't yet have a clear indication that the battery is the cause of the problem ... and would rather not put a battery into the parts cannon just yet. I'm trying to find a way to diagnose the ESS beyond "change the battery and hope it helps".

 

[kah.mun.rah]

It is the original battery, but I don't yet have a clear indication that the battery is the cause of the problem ... and would rather not put a battery into the parts cannon just yet. I'm trying to find a way to diagnose the ESS beyond "change the battery and hope it helps".

Makes sense. Most original batteries don't last longer than 3 years so even if that wasn't the problem, it wouldn't be a complete waste of time and money...especially before spending money on diagnostic fees.

 

[Deleted member 59498]

It is the original battery, but I don't yet have a clear indication that the battery is the cause of the problem ... and would rather not put a battery into the parts cannon just yet. I'm trying to find a way to diagnose the ESS beyond "change the battery and hope it helps".

Then take it to someone who knows how.

 

[somedude922]

It’s the 12v battery. Mine was toast after 2 years and would do the exact same thing… start stop not ready with no other explanation. Replaced with a high quality battery problem was fixed immediately. 21 JLUR 3.6 w/ e torque.

 

[4a4c55]

It’s the 12v battery. Mine was toast after 2 years and would do the exact same thing… start stop not ready with no other explanation. Replaced with a high quality battery problem was fixed immediately. 21 JLUR 3.6 w/ e torque.

I'd happily replace it if I knew it was the cause of the issue, but a new battery is $300 and it since it tests good. (See above.) Even knowing that, do you still recommend replacement? Why?

Then take it to someone who knows how.

I thought maybe someone in the forum would know how to diagnose the issue. Maybe it's just possible without a factory scan tool. There are no codes, nothing in the display, no other symptoms of a bad (or even weak) battery. The opacity of the eTorque system is quite troubling.

 

[garyji]

Original Battery on a 2020? Replace it ASAP.

G.

 

[Spank]

I'd happily replace it if I knew it was the cause of the issue, but a new battery is $300 and it since it tests good. (See above.) Even knowing that, do you still recommend replacement? Why?

I thought maybe someone in the forum would know how to diagnose the issue. Maybe it's just possible without a factory scan tool. There are no codes, nothing in the display, no other symptoms of a bad (or even weak) battery. The opacity of the eTorque system is quite troubling.

If you replace the battery and that doesn't fix it, you can always return it and drop your old one back in. Start with the simplest solution and if it doesn't solve the problem, then dive deeper into the more complex ones.

Your battery is old and your Jeep is literally telling you it's having a problem charging it. Start there.

 

[Murphydog]

While I do agree that the factor 12V primary batteries from Mopar have a very short life, I don’t think that is what you are dealing with.

Both of my eTorque Rubicons have been trouble free an seamless in their operation. The eTorque battery has a significantly longer warranty.
I would hope one of your nearby dealers could read/scan it for you and make a repair under warranty

Edit, just noticed you are in Seattle, the north Seattle dealer service department has been pretty good for both my Jeep and Ram before that. Just takes a bit of time to get an appointment and the waiting room is blah, crappy coffee and worn out couches and chairs…

 

[4a4c55]

If you replace the battery and that doesn't fix it, you can always return it and drop your old one back in.

Where do you buy automotive batteries that accepts used returns?

Your battery is old and your Jeep is literally telling you it's having a problem charging it. Start there.

The Jeep just says "Start/stop not ready." It doesn't say anything about the 12-volt battery charging (or not). There's about a dozen reasons that start/stop might not be available, and this message is obviously no't specific about the reason it's not available. On the other hand, the battery tester "is literally telling me" that the battery is fine.

Maybe it's not clear that I'm looking for a diagnostic that confirms that the battery is specifically the cause of the message in my Jeep. I know this is a high standard: the battery is about 30 months old, and maybe even likely the cause. But not only do I have no confirmation of the battery causing this message, I have evidence to the contrary.

 

[Spank]

Where do you buy automotive batteries that accepts used returns?

A lot of these places actually don't care so long as you haven't somehow managed to mangle the shit out of the terminals, scratch up the battery surface, lose the cap, or keep it for more than a day. Hell, if everything goes tits up and you return it in less than an hour, they might not even ask.

I'd check to see if they just have a spare battery lying around you can run off of in the lot or a battery pack. Testing voltage is one thing, but you want to test your Jeep on a completely different power source than yours to see if that message still appears.

The Jeep just says "Start/stop not ready." It doesn't say anything about the 12-volt battery charging (or not). There's about a dozen reasons that start/stop might not be available, and this message is obviously no't specific about the reason it's not available. On the other hand, the battery tester "is literally telling me" that the battery is fine.

Maybe it's not clear that I'm looking for a diagnostic that confirms that the battery is specifically the cause of the message in my Jeep. I know this is a high standard: the battery is about 30 months old, and maybe even likely the cause. But not only do I have no confirmation of the battery causing this message, I have evidence to the contrary.

Sure, it could be an actual issue with the system, but regardless of eTorque or an aux battery, the vast majority of the time that message appears, it's related to the battery. The easiest way to tell is by process of elimination.

 

[mwilk012]

You’re not going to be able to diagnose this without a high quality scan tool. The dealership will undoubtedly charge you a diagnostic fee until and unless they determine either the motor generator or the 48v battery are bad.

 

[4a4c55]

You’re not going to be able to diagnose this without a high quality scan tool.

I'm afraid that's the actual answer. Thanks!

 

[mwilk012]

I'm afraid that's the actual answer. Thanks!

You’re going to need access to the live data from the power pack unit, or whatever they named that control module. Are you proficient with a voltmeter?

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