3000GT AWD V6-2972cc 30L DOHC Turbo (1991) - Engine Coolant Temperature Switch (A/C)
Engine Coolant Temperature Switch (A/C): Description and Operation
Coolant Temperature Sensor
Engine Coolant Temperature Sensor Circuit
The Coolant Temperature Sensor, located in the thermostat housing, is a thermistor type sensor. As engine temperature increases, sensor resistance
decreases. The ECU judges engine temperature by the sensor output voltage and provides optimum fuel enrichment when the engine is cold.