200SX L4-1998cc 2.0L DOHC MFI (SR20DE) (1995)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
ENGINE COOLANT TEMPERATURE SENSOR (ECTS) (DTC: P0115)
The engine coolant temperature sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine
Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is
sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
Reference Data