I recently upgraded my Ball Joints and must have been too rough with the wheel speed sensors in the hub on the passengers side. When I started up the Jeep to go for a test drive post install the ESP/BAS & ABS lights came on. I thought they might clear as my steering wheel was dead center and I didn't recall screwing with anything that may set it off. I didn't even remove the sensors when I took the hub assembly off, I just set the whole thing on a bucket.
I used my Superchips programmer to find that I had a bad:
"Right front wheel speed sensor circuit" (DTS-C1015)
Which is part number:
Found'em for under $10 Here ---> http://factorymoparparts.com/68003281aa.html
Ordered two (to keep one as a spare) and they arrived in time to get it done the following weekend.
One quick note - these replacements are LONGER than stock, which is a real good thing since I had planned on adding 5" to them anyway. That was a nice discovery.
To get to the sensor you have to remove the wheel/tire - I set mine under the Jeep and use it to set stuff on.
Next use a 21mm socket to remove the brake assembly bolts
Set the assembly on the tire or a bucket, don't let it hang from the brake line
Now you can easily get to the sensor
Is this going to be a problem?