Cressida L6-3.0L DOHC (7M-GE) (1989)
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Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Water Temperature Sensor (THW)
The Coolant Temperature Sensor, located on the front of the engine, monitors coolant temperature with a thermistor whose resistance varies according to
engine temperature. The ECU uses this signal to control open/closed loop operation of the fuel injection system, overdrive on electronic transaxles,
spark advance (ESA), idle speed control system and EGR system. The THW inputs the ECU through terminal THW.
