Tracker 4x2 L4-1590cc 1.6L (1991)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
MAT & CTS Sensor Characteristics
Located at the side of intake manifold, this sensor measures the temperature of the engine coolant and converts its change into a resistance through the
thermistor similar to the Manifold Air Temperature (MAT) sensor. That is, as coolant temperature lowers, resistance increases and as it rises, resistance
decreases. By monitoring the resistance of the CTS, the ECM detects the engine coolant temperature.
