| Last Modified: 11-27-2007 | 1.6 G | |
| Service Category: Vehicle Interior | Section: Heating/Air Conditioning | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002PMT00AX |
| Title: HEATING / AIR CONDITIONING: DUCT TEMPERATURE SENSOR: INSPECTION (2008 LX570) | ||
INSPECTION
1. INSPECT DUCT TEMPERATURE SENSOR
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - 2 |
at 10°C (50°F) |
9.4 to 10.5 kΩ |
|
1 - 2 |
at 15°C (59°F) |
7.5 to 8.3 kΩ |
|
1 - 2 |
at 20°C (68°F) |
6.0 to 6.5 kΩ |
|
1 - 2 |
at 25°C (77°F) |
4.8 to 5.2 kΩ |
|
1 - 2 |
at 30°C (86°F) |
3.8 to 4.2 kΩ |
|
1 - 2 |
at 35°C (95°F) |
3.1 to 3.4 kΩ |
|
1 - 2 |
at 40°C (104°F) |
2.5 to 2.8 kΩ |
|
1 - 2 |
at 45°C (113°F) |
2.0 to 2.3 kΩ |
|
1 - 2 |
at 50°C (122°F) |
1.6 to 2.0 kΩ |
|
1 - 2 |
at 55°C (131°F) |
1.3 to 1.6 kΩ |
|
1 - 2 |
at 60°C (140°F) |
1.1 to 1.4 kΩ |
If the result is not as specified, replace the duct temperature sensor.
NOTICE:
- Touching the sensor even slightly may change the resistance value. Hold the connector of the sensor.
- When measuring the resistance, 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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