RM38T0EC
_58
Vehicle Interior
_104612
HEATING / AIR CONDITIONING
_0500014
ROOM TEMPERATURE SENSOR
G
HEATING / AIR CONDITIONING ROOM TEMPERATURE SENSOR INSPECTION
PROCEDURE
88625Q
1.INSPECT COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)
a.
Check the resistance.
i.
1.01,0.094 1.385,0.313
0.375,0.219
1.854,1.073 2.49,0.906
true
1.49,2.958 1.969,2.625
false
0.333,0.26 0.646,0.417
0.313,0.156
10
false
*a
2.542,0.813 2.854,0.969
0.313,0.156
10
false
*b
0.063,2.813 0.375,2.969
0.313,0.156
10
false
*c
1.771,4.333 2.083,4.49
0.313,0.156
10
false
*d
2.021,2.531 2.333,2.688
0.313,0.156
10
false
*e
1.073,0.115 1.531,0.313
0.458,0.198
10
false
I227
| *a | Component without harness connected
(Cooler Thermistor (Room Temperature Sensor)) |
| *b | Sensing Portion |
| *c | Resistance (kΩ) |
| *d | Temperature (°C (°F)) |
| *e | Allowable Range |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition I227-1 - I227-2 10°C (50°F) 3.00 to 3.73 kΩ I227-1 - I227-2 15°C (59°F) 2.45 to 2.88 kΩ I227-1 - I227-2 20°C (68°F) 1.95 to 2.30 kΩ I227-1 - I227-2 25°C (77°F) 1.60 to 1.80 kΩ I227-1 - I227-2 30°C (86°F) 1.28 to 1.47 kΩ I227-1 - I227-2 35°C (95°F) 1.00 to 1.22 kΩ I227-1 - I227-2 40°C (104°F) 0.80 to 1.00 kΩ I227-1 - I227-2 45°C (113°F) 0.65 to 0.85 kΩ I227-1 - I227-2 50°C (122°F) 0.50 to 0.70 kΩ I227-1 - I227-2 55°C (131°F) 0.44 to 0.60 kΩ I227-1 - I227-2 60°C (140°F) 0.36 to 0.50 kΩ
- NOTICE:
- ·
Hold the sensor only by its connector. Touching the sensing portion may change the resistance value.
·When measuring, the sensor temperature must be the same as the ambient temperature.
- HINT:
-
As the temperature increases, the resistance decreases (see the graph).
If the result is not as specified, replace the cooler thermistor (room temperature sensor).