High output alternator

[Mperez2399]

Hello I got a 2020 wrangler and I Just installed a New high output alternator on my jeep but now it has this messege on the dash screen and it wont go away the alternator its bypassed so its not connected to the original harness also it run smooth nothing else its affected

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[Badweissenbier]

the onboard computer controls your alternator output and now it doesn’t see the alternator so your computer thinks it failed. It’s going into protection mode.

 

[jludave]

the alternator its bypassed so its not connected to the original harness

This is your problem. The JL's alternator output is controlled by the vehicle's computer. No harness connection results in the error you are seeing.

 

[Mperez2399]

Anyway I can fix this without having to remove the alternator back to the factory one

 

[jludave]

Anyway I can fix this without having to remove the alternator back to the factory one

Get the correct type of alternator that connects to the factory harness.

 

[JimLee]

Anyway I can fix this without having to remove the alternator back to the factory one

1. Buy a high output alternator designed to work with a JL Wrangler
2. Send your factory alternator to have it converted to a high output alternator.

 

[Badweissenbier]

The JL tow package comes with a 240 alternator, you could buy one of those possibly.

 

[Mitch horn]

Did you fix the problem or error?

 

[Klevenson]

the onboard computer controls your alternator output and now it doesn’t see the alternator so your computer thinks it failed. It’s going into protection mode.

Alternator and batteries were all fine. The belt came off because the idler tensioner fell off.

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