Possible Causes
| Possible Causes |
|---|
| HIGH RESISTANCE IN THE INTAKE O2 SENSOR HEATER CONTROL CIRCUIT |
| HIGH RESISTANCE IN THE INTAKE O2 SENSOR HEATER GROUND CIRCUIT |
| INTAKE O2 SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .