Possible Causes
WARNING: This page is about a different variant/trim than selected.
| Possible Causes |
|---|
| (K243) O2 SENSOR 2/2 SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| (K904) O2 SENSOR 2/2 RETURN CIRCUIT SHORTED TO VOLTAGE |
| (K243) O2 SENSOR 2/2 SIGNAL CIRCUIT OPEN |
| (K904) O2 SENSOR 2/2 RETURN CIRCUIT OPEN |
| O2 SENSOR 2/2 |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to STANDARD PROCEDURE .