1. Check that the secondary air pump has no deformation, cracks or other damages.
2. Connect battery positive terminal to the terminal No. 2 and battery negative terminal to the terminal No. 1, and inspect the secondary air pump operation.
CAUTION:
Do not operate the secondary air pump continuously for 80 seconds or more.
Check that the air duct or resonator (1.5 L AT model) has no cracks, damage or loose part.