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: Climate control unit removal
1. Disconnect the negative battery cable.
2. Disconnect the air mix and airflow mode wires from each wire clamp and
link. (Manual air conditioner)
3. Remove the center panel. (See CENTER PANEL MODULE REMOVAL/INSTALLATION.)
4. Remove the screws and climate control unit. (Full-auto air conditione ...
Mazda 6 Service Manual: Seat warmer switch removal/installation
1. Disconnect the negative battery cable.
2. Remove the brake boots panel. (See CONSOLE REMOVAL/INSTALLATION.)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
Seat Warmer Switch Removal Note
Squeeze the tabs of seat warmer switch and pull it forwar ...