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: Tire Pressure Monitoring System Initialization
In the following cases, system initialization must be performed so that the system
operates normally.
A tire pressure is adjusted.
Tire rotation is performed.
A tire or wheel is replaced.
The battery is replaced or completely drained.
The tire pressure monitoring system warning light i ...
Mazda 6 Service Manual: Engine tune-up
IGNITION TIMING INSPECTION
Note
Ignition timing is not adjustable.
Ignition timing verification requires WDS or equivalent.
1. Turn off the electrical loads.
2. Warm up the engine as follows.
(1) Start the engine.
(2) Maintain the engine speed at approx. 3,000 rpm until the
cooli ...