Coolant Temperature Sensor/Switch Bulletin
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Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Coolant Temperature Sensor Location
Coolant Temperature Sensing System
The Coolant Temperature Sensor installed in the engine coolant passage of the intake manifold is a resistor-based sensor. The ECU judges engine
warm-up state by the sensor output voltage and provides optimum fuel enrichment when the engine is cold.
