1. Remove the door switch. (See DOOR SWITCH REMOVAL/INSTALLATION)
2. Inspect for continuity between the door switch terminal and a body ground using an ohmmeter.


Door switch removal/installation
Ashtray illumination bulb removal/installationMazda 6 Service Manual: Seat warmer switch inspection
1. Remove the seat warmer switch.
2. Inspect for continuity between the seat warmer switch terminals using an
ohmmeter.
If not as specified, replace the seat warmer switch.
Drivers side
Passengers side
...
Mazda 6 Service Manual: Airflow mode actuator inspection
1. Connect battery positive voltage to terminal D or F and ground to terminal
F or D of the airflow mode actuator.
2. Verify that the airflow mode actuator operates as shown below.
If not as specified, replace the airflow mode actuator.
3. Verify that the resistance between the ter ...