Cabin Temperature Sensor / Switch: Testing and Inspection

In-Car Temperature Sensor





Dome lamp
- Pull out sideways towards the left.
2-pole coupling (1) and ventilation hose (2)
- Pull off.
In-car temperature sensor (B 10/4)
- Press off.
Install
- In the reverse sequence.
Automatic climate control
- Test.

Test Data:
Sensor temperature in °C, Resistance in kohms
+ 10
- 18.2 to 21.5
+ 15
- 15.3 to 17.2
+20
- 11.5 to 13.5
+ 25
- 9.5 to 10.5
+30
- 7.5 to 8.5
+35
- 6.0 to 7.0
+40
- 4.5 to 5.5
+45
- 3.5 to 4.5

Commercially Available Tester:
Multimeter e.g. SUN, DMM 5