Withdrawal
1. Disconnect a wire from the negative plug of joint stock bank.
2. Remove the air conditioning control unit.
3. Remove two screws (1) and remove the sensor (2).
Installation
4. Installation is carried out in the reverse order of removal.
Examination
5. Turn on the ignition.
6. With variable temperature air supplied to the sensor inlet, measure the resistance between pins 2 and 4 of the sensor connector for each temperature value.
1. Pump (+); 2. «Weight» (-); 3. Humidity sensor signal; 4. Temperature sensor signal; 5. Nutrition (+); 6. Pump
Temperature, C | Resistance, kOhm |
0 | 97,83 ± 2,61% |
15 | 47,12 ± 1,45% |
25 | 30,00 + 1,20% |
35 | 19,60 ± 1,44% |
50 | 10,82 ± 2,26% |
7. Using a diagnostic tester, measure the signal frequency between pins 2 and 3 of the sensor connector.
Humidity, % | Signal frequency, Hz±5% |
30 | 6976 |
40 | 6853 |
50 | 6728 |
60 | 6600 |
70 | 6468 |
80 | 6330 |
90 | 6186 |
100 | 6033 |