acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

Power Circuits to Climate Control Unit|Page 5621 > < Power Circuits to Climate Control Unit|Page 5619
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Control Assembly: Component Tests and General Diagnostics
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 thermistor decreases as the coolant temperature
increases.

Power Circuits to Climate Control Unit|Page 5621 > < Power Circuits to Climate Control Unit|Page 5619