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Aux battery delete

thehendensen

New Member
First Name
John
Joined
Apr 18, 2026
Threads
1
Messages
2
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0
Location
Kansas
Vehicle(s)
2018 JLU
I pulled fuse F42 and removed the negative wire from the battery. Everything is working as advertised but my alternator is making a high pitched whine when I turn on the aux power. It seems to be charging fine when running. Any suggestions?
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