| CHECK HARNESS BETWEEN ECM AND SECONDARY AIR COMBINATION VALVE RELAY. |
|
Measure the resistance of harness between ECM and chassis ground. Connector & terminal (B135) No. 34 — Chassis ground: |
| QUESTION | |
|
Is the resistance 1 MΩ or more? | |
| Yes | No |
|
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. |