1. Pull the rear scuff plate upward, then disengage clips A, pin B, and hooks C from the body, and remove the rear scuff plate.

2. Install in the reverse order of removal.
Front scuff plate removal/installation
C-pillar trim removal/installationMazda 6 Service Manual: Rear View Monitor
The rear view monitor provides visual images of the rear of the vehicle when
reversing.
WARNING
Always drive carefully confirming the safety of the rear and the surrounding
conditions by looking directly with your eyes: Reversing the vehicle by only
looking at the screen is dangerous as it m ...
Mazda 6 Service Manual: Dual proportioning valve inspection (without abs)
1. Connect the SSTs to the brake pipes as shown in the figure.
2. Bleed the air from the brake system.
3. Measure the fluid pressure of the master cylinder and the rear brake.
If not within the specification, replace the dual proportioning valve.
Fluid pressure
...