| CHECK HARNESS BETWEEN ECM AND SECONDARY AIR COMBINATION VALVE RELAY. |
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Measure the resistance of harness between ECM and chassis ground. Connector & terminal (B136) No. 30 — Chassis ground: |
| QUESTION | |
|
Is the resistance 1 MΩ or more? | |
| Yes | No |
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Temporary poor contact occurs. Check the poor contact of connector. |
Repair ground short circuit of the harness between ECM and secondary air combination valve relay terminal. |