Heater Core Temperature Sensor / Switch: Service and Repair

REPLACEMENT PROCEDURE:

Heat Exchanger Temperature Sensor (6):

NOTE: When renewing temperature sensor for heat exchanger make sure that the sensor is carefully removed out of guide tube. After the guide tube has been pulled out of clamp (refer to arrow), the guide tube can be perfectly fastened again only by removing air duct center.

REMOVAL:
1. Remove pushbutton control unit.

Heat Exchanger Temperature Sensor (6):

2. Pull 2-pole coupler from temperature sensor (6).

Heat Exchanger Temperature Sensor & Guide Tube:

3. Carefully pull temperature sensor (6) out of guide tube.

INSTALLATION:
1. Test temperature sensor with ohmmeter.
2. Slip temperature sensor into guide tube and plug on 2-pole coupler.
3. Install pushbutton control unit.
4. Check automatic climate control for function.