| CHECK HARNESS BETWEEN ECM AND FRONT OXYGEN (A/F) SENSOR CONNECTOR. |
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1) Turn the ignition switch to OFF. 2) Disconnect the connectors from the ECM and front oxygen (A/F) sensor. 3) Measure the resistance of harness between ECM and front oxygen (A/F) sensor connector. Connector & terminal (B135) No. 9 — (B379) No. 4: (B135) No. 8 — (B379) No. 3: |
| QUESTION | |
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Is the resistance less than 1 Ω? | |
| Yes | No |
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Repair the open circuit of harness between ECM and front oxygen (A/F) sensor connector. |
