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ESS quit working

Lyako

New Member
First Name
Elijah
Joined
Nov 5, 2022
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Location
K1K3Y7
Vehicle(s)
JLU Sahara
I have been fighting with my dealership to get it resolved. Theybsay I do not drive it enough to get the batteries charged. They replaced both batteries and told me I should drive it every day on bighways for 20 minutes otherwise batteries will die. I tested the batteries each one alone and they are very good (12.3 V each). My alternator was charging at 14.5 V when driving (what shows on the dash). I did what others recommended on this forum "ensure fuses are pushed down to the max", reseated the IBS sensor, and replaced the relay for the ESS K01 with the spare one K05 and guess what???? I am going tomorrow to the dealership to get a new relay instead of the defective one and keep it as a spare. I know lots of you want to disable ESS permanently but if you want to get it fixed you might want to try swapping K01 with K05 and see what happens.
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