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: High Beam Control System (HBC) (Some models)
The High Beam Control System (HBC) determines the conditions in front of the
vehicle using the Forward Sensing Camera (FSC) while driving in darkness to automatically
switch the headlights between high and low beams.
Refer to Warning/Indicator Lights.
While driving the vehicle at a speed of ab ...
Mazda 6 Service Manual: How to connect USB port/Auxiliary jack
Connecting a device
1. Open the console lid.
2. Connect the connector on the device to the USB port.
Connecting with a connector cable
1. Open the console lid.
2. Connect the device plug/connector cable to the auxiliary jack/USB port. Pass
the device plug/connector cable through the notch i ...