Wheel Bearing Play Inspection
1. Position a dial indicator against the wheel hub.

2. Push and pull the wheel hub by hand in the axial direction and measure the wheel bearing play.
Maximum wheel bearing play 0.05 mm {0.002 in}
3. If the bearing play exceeds the specification, replace and tighten the locknut to the specified torque and retest.
Rear axle
Wheel hub, hub spindle removal/installationMazda 6 Service Manual: Operational Range
The system operates only when the driver is in the vehicle or within operational
range while the key is being carried.
Starting the Engine
NOTE
Starting the engine may be possible even if the key is outside of the
vehicle and extremely close to a door and window, however, always start the ...
Mazda 6 Service Manual: Door lock timer unit inspection
1. Measure the voltage at the door lock timer unit terminals (other than
terminal 1E and 2W) as indicated below.
If not as specified, inspect the parts listed under Action.
2. Disconnect the negative battery cable.
3. Disconnect the door lock timer unit connector and inspect for continuity ...