Diagnostic Aids
The following table will be used to measure the resistance of the sensor and compare it with the actual ambient temperature. The mirror's temperature accuracy should be within 5 degrees of the actual temperature. The actual temperature should not be taken from a radio station, a sign displaying the temperature, etc. A temperature measuring tool such as a thermometer should be used. Some temperature measuring tools may be within 5 degrees of the actual temperature. Make sure to consult the manufacturer for the accuracy of the tool. This comparison can make the mirror seem off by 5-10 degrees of the actual temperature when it is not.
Ambient Air Temperature Sensor Resistance
| °C | °F | Minimum Resistance K Ohms |
Maximum Resistance K Ohms |
|---|---|---|---|
| -35 | -31 | 234.81 | 250.59 |
| -30 | -22 | 171.69 | 182.31 |
| -25 | -13 | 126.82 | 133.99 |
| -20 | -4 | 94.63 | 99.49 |
| -15 | 5 | 71.30 | 74.58 |
| -10 | 14 | 54.21 | 56.43 |
| -5 | 23 | 41.48 | 43.17 |
| 0 | 32 | 32.00 | 33.31 |
| 5 | 41 | 24.96 | 25.83 |
| 10 | 50 | 19.61 | 20.19 |
| 15 | 59 | 15.49 | 15.94 |
| 20 | 68 | 12.31 | 12.67 |
| 25 | 77 | 9.85 | 10.12 |
| 30 | 86 | 7.96 | 8.15 |
| 35 | 95 | 6.45 | 6.61 |
| 40 | 104 | 5.27 | 5.39 |
| 45 | 113 | 4.32 | 4.42 |
| 50 | 122 | 3.56 | 3.64 |
| 55 | 131 | 2.95 | 3.02 |
| 60 | 140 | 2.46 | 2.52 |