Coolant Temperature Gage

The Coolant Temperature Gage contains internal coils that create magnetic fields when current flows through them. The current through the coils varies depending on the Coolant Temperature Sensor resistance (approximately 55 ohms at 260'F (hot) and approximately 1365 ohms at 100-F). The varying sensor resistance causes the current through the coils to fluctuate. The magnetic fields of the coils move the pointer.