| CHECK POWER SUPPLY TO FRONT OXYGEN (A/F) SENSOR. |
|
1) Turn the ignition switch to OFF. 2) Disconnect the connector from front oxygen (A/F) sensor. 3) Turn the ignition switch to ON. 4) Measure the voltage between front oxygen (A/F) sensor connector and engine ground. Connector & terminal (B262) No. 1 (+) — Engine ground (−): |
| QUESTION | |
|
Is the voltage 10 V or more? | |
| Yes | No |
|
|
Repair the power supply line. NOTE: In this case, repair the following item: • Open circuit of harness between main relay and front oxygen (A/F) sensor connector • Poor contact in front oxygen (A/F) sensor connector • Poor contact of main relay connector |
