Coolant temperature sensor (Mazda Capella GC)

Drain the coolant to a level below the sensor and unscrew it.

Hang the sensor on a thread in a glass container filled with water and connect the ohmmeter probes to the connector contact and the sensor body. Monitor the water temperature with a thermometer.

Heat the water to 80°C, the sensor resistance should be within (53.5±4.2) Ohm.

If the sensor resistance differs from the required value, replace the sensor.

Install the sensor in place and fill the cooling system with coolant.