HEATER CORE TEMPERATURE SENSOR INSPECTION [FULL-AUTO AIR CONDITIONER]

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Note

•  Inspect the heater core temperature sensor when it is installed to the heater case.

1.  Set the fan speed MAX HI.

2.  Set the temperature control at MAX HOT.

3.  Set the RECIRCULATE mode.

4.  Turn the A/C switch off.

5.  Close all doors and windows.

6.  Wait for 5 min.

7.  Disconnect the heater core temperature sensor connector.

8.  Measure the temperature at the blower inlet.

9.  Measure the resistance between the heater core temperature sensor terminals.

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•  If the resistance is not as shown in the graph, replace the heater core temperature sensor.