| CHECK REAR OXYGEN SENSOR SHIELD. |
|
1) Turn the ignition switch to OFF. 2) Expose the rear oxygen sensor connector body side harness sensor shield. 3) Measure the resistance between the sensor shield and chassis ground. |
| QUESTION | |
|
Is the resistance less than 1 Ω? | |
| Yes | No |
|
Replace the rear oxygen sensor. |
Repair the open circuit in the rear oxygen sensor harness. |
