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Climate control not working after battery replacement.

Storman

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Just replaced my main battery and my climate controls no longer manually adjust (arrow up or down) any ideas? Do I need to replace my axillary battery also.
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Reinen

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Always replace Main & Aux at the same time. They're nearly always linked and the old battery will severely reduce the lifespan of the new battery.

Depending on the condition of your Aux battery, it might be the source of your problem but not guaranteed. Either way, you need a new Aux to avoid damaging the new Main.
 

jludave

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Just replaced my main battery and my climate controls no longer manually adjust (arrow up or down) any ideas?
Normal. Let the vehicle sit for up to 24 hours. After a battery replacement, the vehicle needs time to re-learn its features and some things may not work 100% until this is done.

Do I need to replace my axillary battery also.
Aux battery should be replaced at the same time as the main. A bad /dying/old aux battery can have a negative affect on the main, even if the main battery is new. You can also consider bypassing the aux battery.
 

bjm00se

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Normal. Let the vehicle sit for up to 24 hours. After a battery replacement, the vehicle needs time to re-learn its features and some things may not work 100% until this is done.
This right here.
 

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Storman

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Just replaced my main battery and my climate controls no longer manually adjust (arrow up or down) any ideas? Do I need to replace my axillary battery also.
This right here.
Thanks, letting it sit overnight took care of the problem. Guess I will be pulling it back out and replacing the auxiliary battery as well.
 

jludave

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DonBindas

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I did this and a month later-everything still works perfectly! The standard main starter battery without a tow package is something like 650 CCA and the Aux is 200 CCA-so a Diehard AGM battery is rated at 850 CCA-which covers all the bases if you still want the stop/start system to work and better yet if you eliminate the stop/Start with this $39.00 plug in.
Citreal Autostop Eliminator for Jeep Wrangler 2018-2023 /for Jeep Gladiator 2020-2023
https://www.amazon.com/dp/B0C5MF45JF?psc=1&ref=ppx_yo2ov_dt_b_product_details

Jeep Wrangler JL Climate control not working after battery replacement. Citreal Autostop Eliminator for Jeep Wrangler
 

Heimkehr

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That's the first ESS defeat harness I've seen that uses the HVAC panel in lieu of a connection in the driver's side footwell. Hopefully the Amazon harness doesn't require too much finagling to stow the wiring, as the review suggests it does (and which isn't an issue with the admittedly more expensive under-dash harnesses.)
 

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Rhinebeck01

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I did this and a month later-everything still works perfectly! The standard main starter battery without a tow package is something like 650 CCA and the Aux is 200 CCA-so a Diehard AGM battery is rated at 850 CCA-which covers all the bases if you still want the stop/start system to work and better yet if you eliminate the stop/Start with this $39.00 plug in.
Citreal Autostop Eliminator for Jeep Wrangler 2018-2023 /for Jeep Gladiator 2020-2023
https://www.amazon.com/dp/B0C5MF45JF?psc=1&ref=ppx_yo2ov_dt_b_product_details

Citreal Autostop Eliminator for Jeep Wrangler.webp
I would not install the Citreal Autostop Eliminator you installed, even if you gave one to me for free.. No way...
https://www.jlwranglerforums.com/fo...-2023-for-39-90-on-amazon.116489/post-2431681
 

DonBindas

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That's the first ESS defeat harness I've seen that uses the HVAC panel in lieu of a connection in the driver's side footwell. Hopefully the Amazon harness doesn't require too much finagling to stow the wiring, as the review suggests it does (and which isn't an issue with the admittedly more expensive under-dash harnesses.)
I have been using this for a month or so and it works perfectly. There is a space to put the unit behind the A/C panel if you take the time to look for it. This is so easy to install that it takes less than 5 minutes from start to finish. A great add on for $39.00
 

Gangplank

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Had this happen today. Took the negative terminal off to charge the main battery & aux battery. Will probably remove or isolate Aux battery & remove Fuse 42
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