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