I have a JKU and all my lights came out, abs esp tcs. What can I do to fix this ? JKU 2008.
Wheel speed sensor. If it came on after wheeling it might have gotten loose.
As mentioned, a loose battery cable will cause ALL your lights to come on and off. This is common on 2012-up especially if you've tried attaching additional leads to the battery as the clamp uses a tappered nut to get it on tight. Otherwise, a bad wheel speed sensor will do this as well.
Putting your jeep on a lift and spinning the tires will do this too. Just saying.:cheesy::cheesy: We were able to help in clearing the code(s) by also using the procal.