| CHECK HARNESS BETWEEN ECM AND SECONDARY AIR COMBINATION VALVE RELAY CONNECTOR. |
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Measure the resistance between the secondary air combination valve relay connector and chassis ground. Connector & terminal (F9) No. 2 — Chassis ground: |
| QUESTION | |
|
Is the resistance 1 MΩ or more? | |
| Yes | No |
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Repair the poor contact of the ECM connector. |
Repair the ground short circuit of harness between ECM and secondary air pump relay connector. |