Legend V6-2494cc 2.5L SOHC FI (1986)
Coolant Temperature Sensor / Switch HVAC: Testing and Inspection
Non-Trouble Code Procedures
Coolant Temperature Sensor
Self-diagnosis indicator light B comes on: Indicates a problem in the Coolant Temperature Sensor circuit.
The coolant temperature sensor is a temperature dependant resistor (thermistor). The resistance of the thermister decreases as the coolant temperature
increases.