Notice – Proheat M80 User Manual
Page 63
PROHEAT G-I PCM SERVICE MANUAL
4-32
If after changing the Temperature Sensor a diagnostic code is still
indicated, the G-I PCM is faulty. Go to G-I PCM replacement, page 4-41.
Test Procedure – Temperature Sensor measurement:
a)
Using a multimeter set for resistance, measure across pins A and B of
the sensor.
If the sensor measures out of range (see chart below), the sensor is
faulty. Go to Temperature Sensor replacement.
Figure 4-38: Temperature Sensor Test
RESISTANCE
TEMP
TEMP
(k-Ohms)
(°C)
(°F)
8574.14
-50
-58
5932.78
-45
-49
4155.34
-40
-40
2943.30
-35
-31
2108.75
-30
-22
1527.54
-25
-13
1117.67
-20
-4
826.12
-15
5
616.27
-10
14
463.88
-5
23
352.16
0
32
269.70
5
41
208.14
10
50
161.82
15
59
126.80
20
68
99.99
25
77
79.42
30
86
63.49
35
95
51.07
40
104
RESISTANCE
TEMP
TEMP
(k-Ohms)
(°C)
(°F)
41.31
45
113
33.62
50
122
27.52
55
131
22.63
60
140
18.71
65
149
15.55
70
158
12.98
75
167
10.89
80
176
9.17
85
185
7.75
90
194
6.59
95
203
5.62
100
212
4.81
105
221
4.13
110
230
3.56
115
239
3.08
120
248
2.68
125
257
NOTICE
If the resistance is below 1.363 k-Ohm
or above 10706 k-Ohm then there
will be a Code 7 and/or 9