Ignition "OFF".
Disconnect duct sensor.
Using the multi-tester, Measure resistance between terminal "1" and "2" of duct sensor.
Discharge temperature [°C(°F)] | Resistance [KΩ] |
-10(14) | 16.54 |
-5(23) | 12.66 |
0(32) | 9.77 |
5(41) | 7.59 |
10(50) | 5.96 |
15(59) | 4.68 |
20(68) | 3.72 |
25(77) | 2.993 |
30(86) | 2.41 |
35(95) | 1.95 |
40(104) | 1.59 |
45(113) | 1.30 |
50(122) | 1.07 |
If the measured resistance is not specification, substitute with a known-good duct temperature sensor and check for proper operation.
If the problem is corrected, replace the duct temperature sensor.