Description
(1) engine coolant temperature sensor
"a" 2 way green connector
Supplier: ELTH
The sensor is a resistive, negative temperature coefficient (CTN), sensor
Role
The engine coolant temperature sensor informs the ECU of the temperature of the engine cooling fluid
Operation
The value "R" of the negative temperature coefficient resistance (CTN) changes as a function of the variation in temperature "T"
- When the temperature "T" increases, the resistance value "R" decreases
- When the temperature "T" decreases, the resistance value "R" increases
Specification of the electrical system
"R" resistance (ohm)
"T" coolant temperature (°C)
| temperature (°C) | resistance (ohm) | tolerance(s) (ohm) |
|---|---|---|
| -30 | 88500 | ± 5301 |
| -25 | 65200 | ± 3592 |
| -20 | 48535 | ± 2494 |
| -15 | 36475 | ± 1747 |
| -10 | 27665 | ± 1225 |
| -5 | 21160 | ± 859 |
| 0 | 16325 | ± 610 |
| 5 | 12695 | ± 429 |
| 10 | 9950 | ± 310 |
| 15 | 7855 | ± 223 |
| 20 | 6245 | ± 162 |
| 25 | 5000 | ± 126 |
| 30 | 4028,5 | ± 95 |
| 35 | 3266 | ± 72 |
| 40 | 2663,5 | ± 54 |
| 45 | 2184,5 | ± 40 |
| 50 | 1801,5 | ± 32 |
| 55 | 1493 | ± 25 |
| 60 | 1244 | ± 19 |
| 70 | 876 | ± 12 |
| 80 | 629 | ± 7,1 |
| 90 | 458,9 | ± 6,9 |
| 100 | 340 | ± 5,8 |
| 110 | 255,6 | ± 4,6 |
| 120 | 194,7 | ± 3,7 |
| 130 | 150,5 | ± 3 |
| channel number | allocation of the tracks of the connector |
|---|---|
| 1 | engine coolant temperature sensor signal |
| 2 | earth |
Programming/initialisation
Not applicable