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: Illuminated Entry System
When the illuminated entry system operates, the overhead lights, the courtesy
lights, and an ambient light* turn on in the following conditions:
The driver's door is unlocked after the ignition is switched OFF.
The ignition is switched OFF with all doors closed.
NOTE
(Overhead lights) ...
Mazda 6 Service Manual: Windshield Wipers
Turn the wipers on by pressing the lever up or down.
With intermittent wiper
Variable-speed intermittent wipers
Set the lever to the intermittent position and choose the interval timing by
rotating the ring.
With auto-wiper control
Auto-wiper control
When the wiper lever is in the
...