| CHECK HARNESS BETWEEN ECM AND SECONDARY AIR COMBINATION VALVE LH CONNECTOR. |
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Measure the voltage between ECM and chassis ground. Connector & terminal (B136) No. 7 (+) — Chassis ground (−): |
| QUESTION | |
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Is the voltage 5 V or more? | |
| Yes | No |
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Repair the short to power supply in the harness between the ECM and secondary air combination valve relay LH connector. |
Temporary poor contact occurs. Check the poor contact of connector. |