Engine coolant temperature sensor operation check
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Petrol injection system › Engine coolant temperature sensor operation check
EngineEngine coolant temperature sensor operation check
ENGINE COOLANT TEMPERATURE SENSOR OPERATION CHECK
| CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK | |
|---|---|---|
| 1 | Check that, as the temperature of the engine coolant varies, the resistance measured between the two sensor pins See K036 ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT is within the values indicated in the table below | Replace the temperature sensor |
| Temperature (°C) | Minimum resistance (Ohm) | Maximum resistance (Ohm) |
| -40 | 40.490 | 50.136 |
| -20 | 14.096 | 16.827 |
| -10 | 8.642 | 10.152 |
| 0 | 5.466 | 6.326 |
| 20 | 2.351 | 2.649 |
| 25 | 1.941 | 2.173 |
| 40 | 1.118 | 1.231 |
| 60 | 573 | 618 |
| 80 | 313 | 332 |
| 100 | 182 | 191 |
| 120 | 109 | 116 |
| 140 | 68 | 74 |
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