| CHECK REAR OXYGEN SENSOR SHIELD. |
|
1) Turn the ignition switch to OFF. 2) Bare the harness sensor shield on the body side of 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. |
