Possible Causes
WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
| EXHAUST SYSTEM LEAK |
| O2 SENSOR 1/2 SIGNAL CIRCUIT |
| O2 SENSOR 1/2 RETURN CIRCUIT |
| O2 SENSOR 1/2 |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to
.