1. Measure the temperature around the ambient temperature sensor.
2. Measure the resistance between terminals of the ambient temperature sensor.

Ambient temperature sensor removal/installation
Cabin temperature sensor removal/installationMazda 6 Service Manual: Rear door removal/installation
Warning
Handling the side air bag sensor improperly can accidentally
deploy the side air bag module, which may seriously injure you. Read AIR BAG
SYSTEM SERVICE WARNINGS before working around the B-pillar areas. (See
SERVICE WARNINGS.)
Note
The side air bag sensor is located in t ...
Mazda 6 Service Manual: Manually Shifting Down
You can shift gears down by operating the selector lever or the steering shift
switches (some models).
M6 → M5 → M4 → M3 → M2→ M1
Using selector lever
To shift down to a lower gear, tap the selector lever forward (-) once.
Using steering shift switch (Some model ...