Our 2019 Jeep wrangler JLU was throwing every possible error code on the dashboard and sometimes was unsafe as a result. The dashboard would completely freak out and sometimes the engine would die. After 2 months at the dealer we got fed up and decided to take matters into our own hands. The errors were related to the Canbus, specially the CAN-C data bus that most of the computers use to communicate in the Jeep and many other Mopar vehicles. Some folks on the Jeep wrangler forums had reported that replacing the STAR connector behind the glovebox fixed their issue. I’m happy to report that indeed it fixed our problem as well. Does your Jeep behave like shown in this video, showing every error on the dash? Check out how we fixed it.
Part needed: https://store.mopar.com/oem-parts/mopar-connector-can-buss-68321746aa
We used Jeep J-scan and an OBDLink MX+ Bluetooth adapter to read and clear codes:
OBDLink MX+: https://amzn.to/3yTZhKM
JSCAN: https://apps.apple.com/us/app/obd-jscan/id1445903514