SiBE611027_A Check
Service Diagnosis 50
5.1.2 Thermistor Resistance Check
Check No.06 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.
Thermistor temperature (°C) Resistance (kΩ)
–20 211.0
–15 150.0
–10 116.5
–5 88.0
067.2
551.9
10 40.0
15 31.8
20 25.0
25 20.0
30 16.0
35 13.0
40 10.6
45 8.7
50 7.2
(R25°C = 20 kΩ, B = 3950 K)
Tester
Resistance range
(R11906)
(kΩ)
150
100
50
-15 0 15 30 45
(˚C)
(R11905)
RTH1
Tester
(R3460)
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