1. Disconnect the negative battery cable.
2. Open the cap using a small screwdriver, then remove the screw.

3. Remove the inner handle cover.
4. Remove the inner garnish.
5. Remove the cover, then remove screw A.

6. Remove the lens cover, then remove screw B.
7. Disengage clips A from the front door using a fastener remover.
8. Pull the front door trim upward, then disengage hooks B from the front door.
9. Disconnect the power door mirror switch connector and the power window main switch connector (drivers side) or power window subswitch connector (passengers side).
10. Remove the courtesy light.
11. Remove the front door trim.
12. Remove the switch panel from the front door trim.
13. Install in the reverse order of removal.
C-pillar trim removal/installation
Rear door trim removal/installationMazda 6 Service Manual: Transmitter battery inspection
Caution
Since the battery voltage does not drop fully if the button is
pushed for only 4 seconds or less, it can not be properly examined to see
whether it is good or bad. Always push the button for 5 seconds.
Note
A correct measurement can not be obtained if the battery
temperat ...
Mazda 6 Service Manual: Obd drive mode
Performing the Drive Mode inspects the OBD system for proper operation.
The Drive Mode must be performed to ensure that no additional DTCs are
present.
During Drive Mode, the following systems are inspected:
- Oxygen sensor (HO2S)
- Oxygen sensor heater
- Catalytic converter (TW ...