Did you ever end up fixing this issue? My JT just started this issue, after some research I have found it is best to buy the Zlocker harness. I ordered one Just wanted to see if it worked. Really sucks, as I only have 5,000 miles on it. The wait for a rear axle is long and the light is annoying
Here is what I found is the fix for this issue, rather then getting a whole new housing that is in back order.
https://www.zautomotive.com/product/z-locker-oem/