Check
SiBE121021_C
362
Service Diagnosis
8. Check
8.1
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.
Thermistor temperature (°C)
Resistance (k
Ω
)
–20
211.0
–15
150.0
–10
116.5
–5
88.0
0
67.2
5
51.9
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 k
Ω
,
B = 3950 K)
(k
Ω
)
150
100
50
-15
0
15
30
45
(˚C)
(R11905)
Tester
Resistance range
(R11906)
RTH1
Tester
(R3460)
