1. Remove the evaporative gas check valve (one-way).
2. Apply pressure to port A, and verify that there is no airflow.
3. Apply negative pressure to port A, and verify that there is air flow.

Charcoal canister inspection
Purge solenoid valve removal/installationMazda 6 Service Manual: Operating the Satellite Radio (Some models)
What is satellite radio?
With over 130 channels, SiriusXM Satellite Radio brings you more of what you
love. Get channels and channels of commercial-free music, plus sports, news, talk,
entertainment and more.
Commercial-free music from nearly every genre
—rock to pop, hip-hop to country, ja ...
Mazda 6 Service Manual: Ignition switch inspection
1. Disconnect the negative battery cable.
2. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION)
3. Disconnect the ignition switch connectors.
4. Inspect for continuity between the ignition switch terminals using an
ohmmeter.
If not as specified, replace the ignition switch.
...