Water Temp. Sensor [CHART: Graph showing Resistance (kΩ) on Y-axis (logarithmic scale from 0.1 to 40) vs Temperature °C(°F) on X-axis (-20 to 120 / -4 to 248). Multiple diagonal lines showing resistance decreasing as temperature increases] Ohmmeter [DIAGRAM: Illustration showing an ohmmeter connected to a water temperature sensor for testing] INSPECTION OF WATER TEMP. SENSOR MEASURE RESISTANCE OF WATER TEMP. SENSOR (a) Disconnect the connector. (b) Using an ohmmeter, measure the resistance between both terminals. Resistance: Refer to chart.