Possible Causes
WARNING: This page is about a different car, the 2023 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| EXHAUST LEAK |
| O2 SENSOR 1/1 SIGNAL CIRCUIT |
| O2 SENSOR 1/1 RETURN CIRCUIT |
| OXYGEN (O2) SENSOR 1/1 |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .