ESS Electronic Start Stop Not Working - 2020 Jeep JL

Group using the aCH2 and aCH3 firmwares for vehicle with premium audio * see specific firmware for full feature list.
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doitright2112
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ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by doitright2112 »

Installed AR with Kenwood XR600-6DSP amp. Now my ESS is not working and there is a warning light on my display. Any ideas on how to fix this?

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Dara DeGrand
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by Dara DeGrand »

Was the vehicle OEM amplified or non-amplified?
Dara DeGrand
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doitright2112
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by doitright2112 »

It was amplified (Alpine Premium).

doitright2112
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by doitright2112 »

Any ideas?

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Dara DeGrand
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by Dara DeGrand »

Not offhand. it's not something we've seen before. If you just unplug the AR, does the ESS start working again?
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

doitright2112
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by doitright2112 »

I don't know. I will try it today. FYI, I completely removed the Alpine OEM amp. Wondering if that could be part of the issue?

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Dara DeGrand
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by Dara DeGrand »

No, because that is what our system is intended to do. If you removed other OEM components that are also on the data lines, that could alter the resistance of the OEM data lines and cause strange issues, though.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

doitright2112
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by doitright2112 »

I disconnected the AR and the ESS still doesn't work (warning light on center dash). I've rechecked all the cables under the dash and under the hood (making sure the sensor for the hood was not disconnected. Still no luck.

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Dara DeGrand
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by Dara DeGrand »

If all the OEM cables are connected, you have no blown fuses, I'd say it might be time to return it to stock to have the dealer take a look at it. We have had a pretty large number of these vehicles done with this solution and I haven't heard any reports of this issue, so I'm under the assumption that it's not related.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

doitright2112
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by doitright2112 »

FYI - I put a ODBII reader on it and cleared the codes and the ESS is now back and working normally. Thought you'd like to know it's resolved.

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Dara DeGrand
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Re: ESS Electronic Start Stop Not Working - 2020 Jeep JL

Post by Dara DeGrand »

Thanks for letting us know!
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

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