1. Verify that the joint shaft is not twisted or cracked.
2. Turn the joint shaft by hand and verify that the bearing rotates smoothly and freely.

Drive shaft
Joint shaft removal/installationMazda 6 Service Manual: No.2 air bag system warning light is illuminated all the time
Diagnostic Procedure
When performing an asterisked (*) troubleshooting inspection, shake the
wiring harness and connectors while doing the inspection to discover whether
poor contact points are the cause of any intermittent malfunction. If there
is a problem, check to make sure connec ...
Mazda 6 Service Manual: Making a Call
Phonebook Usage
Telephone calls can be made by saying the contact name in the downloaded phonebook
or the name of a person whose phone number has been registered in the Bluetooth®
Hands-Free. Refer to Import contact (Download Phonebook).
1. Press the talk button.
2. Wait for the beep sound.
...