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

1) Remove the secondary air combination valve fuse (10 A).

2) Remove the secondary air combination valve relay.

3) Disconnect connectors from the secondary air combination valves (LH and RH).

4) Measure the resistance between the secondary air combination valve relay connector and engine ground.

Connector & terminal

(F9) No. 3 — Engine ground:

(F9) No. 4 — Engine ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Replace the fuse with a new part, connect the secondary air combination valve relay and secondary air combination valve connector, and then go to the next step.

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Ground short of bus bar between secondary air combination valve fuse (10 A) and secondary air combination valve relay

• Short circuit to ground in harness between secondary air combination valve relay connector and secondary air combination valve connector (LH and RH)