| CHECK HARNESS BETWEEN ECM AND REAR OXYGEN SENSOR CONNECTOR. |
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1) Turn the ignition switch to OFF. 2) Disconnect the connectors from ECM. 3) Measure the resistance between ECM and oxygen sensor connector. Connector & terminal Euro 4 model (B135) No. 7 — (E22) No. 1: Euro 5 model (B134) No. 5 — (E22) No. 1: |
| QUESTION | |
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Is the resistance less than 1 Ω? | |
| Yes | No |
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Repair the harness and connector. NOTE: In this case, repair the following item: • Open circuit in harness between ECM and rear oxygen sensor • Poor contact of coupling connector |
