1. Remove the rear door unit.
2. Remove the screws, then remove the rear door latch and lock actuator.

3. Install in the reverse order of removal.
Front door latch and lock actuator removal/installation
Front door key cylinder removal/installationMazda 6 Service Manual: Rear wheel alignment
Specification (Unloaded)*1
Normal
Elevated*3
*1 : Engine coolant and engine oil are at specified level. Spare tire, jack
and tools are in designated position.
*2 : Difference between left and right must not exceed 1°30'.
*3 : Distance between wheel center and fender brim is 392 mm {15.4 ...
Mazda 6 Service Manual: How to Arm the System
1. Close the windows and the moonroof securely (some models).
2. Switch the ignition OFF.
3. Make sure the hood, the doors, and the trunk lid are closed.
4.Press the lock button on the transmitter or lock the driver's door from the
outside with the auxiliary key.
The hazard warning light ...