SiUS04-924_A Check
110 Service Diagnosis
5. Check
5.1 Thermistor Resistance Check
Check No.01 Disconnect the connectors of the thermistors from the PCB, and measure the resistance of each
thermistor using tester.
The relationship between normal temperature and resistance is shown in the table and the graph
below.
For the models in which the thermistor is directly mounted on the PCB, disconnect the
connector for the PCB and measure.
Temperature (°C / °F) Resistance (k)
–20 / –4 211.0
–15 / 5 150.0
–10 / 14 116.5
–5 / 23 88.0
0 / 32 67.2
5 / 41 51.9
10 / 50 40.0
15 / 59 31.8
20 / 68 25.0
25 / 77 20.0
30 / 86 16.0
35 / 95 13.0
40 / 104 10.6
45 / 113 8.7
50 / 122 7.2
(R25°C (77°F) = 20 k, B = 3950 K)
Tester
Resistance range
(R11906)
(kΩ)
150
100
50
–15 0 15 30 45
(R14467)
5 32 59 86 113
(˚C)
(˚F)
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