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: Side protector installation
1. Remove the adhesive remaining on the side protector (if it will be reused)
and the body using a razor.
2. Remove any grease or dirt from the adhesion surface of the side protector
(if it will be reused) and the body.
3. Attach double-sided adhesive tape to the side protector as shown (if it ...
Mazda 6 Service Manual: Warning Indication/Warning Lights
These lights turn on or flash to notify the user of the system operation status
or a system malfunction.
*1 The light turns on when the ignition is switched on for an operation check,
and turns off a few seconds later or when the engine is started. If the light does
not turn on or remai ...