mgroeger
Well-Known Member
- First Name
- Mike
- Joined
- Feb 1, 2018
- Threads
- 150
- Messages
- 5,454
- Reaction score
- 7,844
- Location
- Hurricane, UT
- Vehicle(s)
- 2021 JLUR 2.0T, 1991 YJ rock crawler
- Occupation
- I make microchips for a living.
- Vehicle Showcase
- 1
Ahhh the missing piece... metal silt. I thought it was the gear oil itslef but you're right, it's super fine metal silt suspended in the oil causing the short.Add me to the "gear oil in the sensor" list.
I have an open case with Jeep Cares, but of course that isn't going anywhere.
I've dug into the issue quite a bit and it seems like the fine metal particles in the gear oil are shorting the sensor's PCB. You can confirm this yourself by checking the resistance between the two outer pins on the sensor. If there is any continuity (any resistance shown, rather than an open circuit) then the sensor has been contaminated with oil. I can't remember which two pins that corresponds to on the 4-pin axle connector, but you could check it there without taking off the diff cover if you knew which two pins to check.
https://www.jlwranglerforums.com/fo...arranty-part-not-available-for-puchase.54531/
Personally I'd look into the Z Automotive harness for $175 and screw the dealer.
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