Cabin Temperature Sensor / Switch: Service and Repair

NOTE: If an owner complains that the system occasionally goes from Air Conditioning to heat, the most common cause is the electrical connection from the In Car (behind glove box) temperature sensor. This connection is located behind the glove box, which must be removed to make the following repair. Eliminating this connector is the most dependable answer to avoid repeat repair. The connector should be cut from the wires and the corresponding wires connected directly together with a crimp-on connector or a scotch-lock connector.











Temperature Sensor Behind The Glove Box , Checking/Replacement
Removal:
1. Remove panel below glove box.
2. Remove glove box.
3. Remove sensor and tube
4. Use voltmeter/ammeter 951 0061. Check that current passes through sensor. If not, install a new one.
5. If replacement is necessary: disconnect tube and separate connector.





Installation:
1. Install sensor and tube.
2. Install connector.
3. Install glove box.
4. Install panel.

Temperature Sensor In The Control Panel, Checking/Replacement





Checking Temperature Sensor:
1. Remove cover panel and detach control panel from dashboard.
2. Disconnect connector from sensor.





3. Use voltmeter/ammeter 951 0061 to check temperature sensor.
4. Sensor should allow current to pass through only
at temperatures above 18 °C (64 °F).
5. Cool sensor down in a refrigerator, check that
sensor cuts off current at 18 °C (64 °F).





To Remove Control Panel:
1. Remove screw.
2. Remove one-pole connector
3. Remove four-pole connector
4. Remove two wires from temperature control.
5. Remove Lift away control panel.

To Install Control Panel:
1. Solder wires onto new control panel.
2. Install connectors.
3. Install screw.
4. Install panels.