Legend Coupe V6-2675cc 2.7L SOHC FI (1988)
Coolant Temperature Sensor / Switch HVAC: Testing and Inspection
Sedan
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 thermistor decreases as the coolant temperature
increases.