| CHECK HARNESS BETWEEN KNOCK SENSOR AND ECM CONNECTOR. |
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1) Turn the ignition switch to OFF. 2) Disconnect the connectors from the ECM. 3) Measure the resistance between ECM harness connector and chassis ground. Connector & terminal (B137) No. 17 — Chassis ground: |
| QUESTION | |
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Is the resistance 700 kΩ or more? | |
| Yes | No |
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Repair the harness and connector. NOTE: In this case, repair the following item: • Open circuit of harness between knock sensor and ECM connector • Poor contact of knock sensor connector • Poor contact of coupling connector |
