Possible Causes
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| O2 SENSOR 2/1 RETURN CIRCUIT SHORTED TO GROUND |
| O2 SENSOR 2/1 SIGNAL CIRCUIT SHORTED TO GROUND |
| O2 SENSOR 2/1 SIGNAL CIRCUIT SHORTED TO THE (K902) O2 SENSOR 2/1 RETURN CIRCUIT |
| O2 SENSOR 2/1 SIGNAL CIRCUIT SHORTED TO THE HEATER GROUND CIRCUIT |
| O2 SENSOR 2/1 |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .