CHECK SECONDARY AIR COMBINATION VALVE RELAY.

1) Turn the ignition switch to OFF.

2) Connect the battery to the secondary air combination valve relay terminals No. 12 and 14.

3) Measure the resistance between the secondary air combination valve relay terminals.

Terminals

No. 10 — No. 11:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Replace the secondary air combination valve relay.