Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Fig. 1 Resistance graph







The diagram is valid for Engine Coolant Temperature sensor G62 and intake air sensor G42.

The diagram is divided into two temperature ranges:

A - From 0 to 50 °C
B - From 50 to 105 °C

Examples:
- 30 °C is range A and corresponds to a resistance of 1.5 to 2.0 k Ohms
- 80 °C is range B and corresponds to a resistance of 275 to 375 Ohms