Temperature Gauge

The temperature gauge displays the engine coolant temperature. The current flow through the 2 coils moves the pointer of the temperature gauge. This is similar in operation to the fuel gauge. The engine coolant temperature sender has a low resistance at higher temperatures. The engine coolant temperature sender has a resistance of approximately 49.5 ohms at 123°C (260°F). The resistance increases at lower temperatures. The resistance is approximately 1305 ohms at 47°C (100° F). The resistance increase causes the current through the sensor to increase as the coolant temperature increases. The temperature gauge pointer also moves toward the hot end of the scale.