1. Remove the front scuff plate.
2. Remove the rear scuff plate.
3. Pull the area marked A, then remove one side of the B-pillar lower trim.

4. Pull the B-pillar lower trim, then remove the pin from the body.
5. Remove the B-pillar lower trim.
6. Install in the reverse order of removal.
A-pillar trim installation
B-pillar upper trim removal/installationMazda 6 Service Manual: Power brake unit removal/installation
1. Remove the master cylinder. (See MASTER CYLINDER REMOVAL/INSTALLATION.)
2. Remove the wiper arm. (See WINDSHIELD WIPER ARM AND BLADE
REMOVAL/INSTALLATION.)
3. Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION.)
4. Remove the wiper motor. (See WINDSHIELD WIPER MOTOR REMOVAL/INSTAL ...
Mazda 6 Service Manual: No. 1 one or more on-board diagnostic functions inoperative
When performing an asterisked (*) troubleshooting inspection, shake the
wiring harness and connectors while doing the inspection to discover whether
poor contact points are the cause of any intermittent malfunctions. If there
is a problem, check to make sure connectors, terminals and wir ...