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: To Turn Off an Armed System
An armed system can be turned off using any one of the following methods:
Pressing the unlock button on the transmitter.
Starting the engine with the push button start.
(With the advanced keyless function)
Pressing a request switch on the doors.
The hazard warning lights will flash twic ...
Mazda 6 Service Manual: No.4 passenger-side air bag cut-off indicator light is illuminated all the
time
Diagnostic Procedure
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 malfunction. If there
is a problem, check to make sure connec ...