| CHECK HARNESS BETWEEN ECM AND EGR CONTROL VALVE CONNECTOR. |
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1) Turn the ignition switch to OFF. 2) Disconnect the connector from ECM and EGR control valve. 3) Measure the resistance of harness between ECM connector and EGR control valve connector. Connector & terminal (B134) No. 66 — (E18) No. 4: (B134) No. 51 — (E18) No. 5: |
| 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 of harness between ECM connector and EGR control valve connector • Poor contact of coupling connector |
