Possible Causes
| Possible Causes |
|---|
| (K299) O2 SENSOR 1/2 HEATER CONTROL CIRCUIT SHORTED TO GROUND |
| (K299) O2 SENSOR 1/2 HEATER CONTROL CIRCUIT SHORTED TO THE GROUND CIRCUIT |
| OXYGEN SENSOR 1/2 |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE . .