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

Cabin temperature sensor removal/installation
Evaporator temperature sensor removal/installationMazda 6 Service Manual: Passenger-side air bag module removal/installation
Warning
Handling the air bag module improperly can accidentally deploy the
air bag module, which may seriously injure you. Read AIR BAG SYSTEM SERVICE
WARNINGS before handling the air bag module. (See SERVICE WARNINGS.)
Due to the adoption of 2-step deployment control in both the
pass ...
Mazda 6 Service Manual: Transaxle Ranges
The shift position indicator light in the instrument cluster illuminates.
The selector lever must be in P or N to operate the starter.
P (Park)
P locks the transaxle and prevents the front wheels from rotating.
WARNING
Always set the selector lever to P and set the parking brake:
Only s ...