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Mystery wire in battery tray

Sflxj

NAXJA Forum User
Installed a new Optima battery and custom tray today and found a wire that mounts in the stock OEM battery tray. Can someone tell me what its for?
 
Probably battery temp sensor in the bottom of the tray, depending on what year you have.
 
97+ XJs had a battery temp sensor in the battery tray. TJs also had the same sensor.
 
My 96 also has a battery temp sensor. I think they
were only on the XJs for a couple years.

I'd hook it up with the new tray to prevent a
possible future CEL.
 
That's odd. My 96 did not have the battery sensor.
 
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