CHECK HARNESS BETWEEN ECM AND SECONDARY AIR COMBINATION VALVE RELAY CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from ECM and secondary air combination valve relay.

3) Measure the resistance of the harness between ECM and secondary air combination valve relay connector.

Connector & terminal

(B135) No. 15 — (F9) No. 2:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit in harness between ECM and secondary air combination valve relay connector

• Poor contact of coupling connector