| Last Modified: 11-27-2007 | 1.6 G | |
| Service Category: Vehicle Interior | Section: Heating/Air Conditioning | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002AXX00AX |
| Title: HEATING / AIR CONDITIONING: REAR EVAPORATOR TEMPERATURE SENSOR: INSPECTION (2008 LX570) | ||
INSPECTION
1. INSPECT REAR EVAPORATOR TEMPERATURE SENSOR
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
8 - 7 |
-10°C (14°F) |
7.30 to 9.10 kΩ |
|
8 - 7 |
-5°C (23°F) |
5.65 to 6.95 kΩ |
|
8 - 7 |
0°C (32°F) |
4.40 to 5.35 kΩ |
|
8 - 7 |
5°C (41°F) |
3.40 to 4.15 kΩ |
|
8 - 7 |
10°C (50°F) |
2.70 to 3.25 kΩ |
|
8 - 7 |
15°C (59°F) |
2.14 to 2.58 kΩ |
|
8 - 7 |
20°C (68°F) |
1.71 to 2.05 kΩ |
|
8 - 7 |
25°C (77°F) |
1.38 to 1.64 kΩ |
|
8 - 7 |
30°C (86°F) |
1.11 to 1.32 kΩ |
If the result is not as specified, replace the rear evaporator temperature sensor.
NOTICE:
- Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor.
- When measuring the sensor temperature must be the same as the ambient temperature.
HINT:
As the temperature increases, the resistance decreases (see the graph).
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