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

Water temperature sensor removal/installation
Refrigerant pressure switch 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: Winter Driving
Carry emergency gear, including tire chains, window scraper, flares, a small
shovel, jumper cables, and a small bag of sand or salt.
Ask an Authorized Mazda Dealer to check the following:
Have the proper ratio of antifreeze in the radiator.
Inspect the battery and its cables. Cold reduces b ...