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: Odometer, Trip Meter and Trip Meter Selector
The odometer is constantly displayed on the screen when the ignition is switched
ON, and the TRIP A or TRIP B screen can be displayed by operating the INFO switch.
Odometer
The odometer records the total distance the vehicle has been driven.
Trip meter
The driving distance for a specified in ...
Mazda 6 Service Manual: Audio control switch inspection
1. Disconnect the negative battery cable.
2. Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE
REMOVAL/INSTALLATION.)
3. Disconnect the audio control switch connector.
4. Measure the resistance and inspect for continuity between the cruise
control switch terminals using a ...