Lexus IS250 IS220d GSE20 ALE20 - AIR CONDITIONING
AMBIENT TEMPERATURE SENSOR - INSPECTION
| 1. INSPECT AMBIENT TEMPERATURE SENSOR |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Condition Specified Condition B5-1 - B5-2 10°C (50°F) 3.00 to 3.73 kΩ B5-1 - B5-2 15°C (59°F) 2.45 to 2.88 kΩ B5-1 - B5-2 20°C (68°F) 1.95 to 2.30 kΩ B5-1 - B5-2 25°C (77°F) 1.60 to 1.80 kΩ B5-1 - B5-2 30°C (86°F) 1.28 to 1.47 kΩ B5-1 - B5-2 35°C (95°F) 1.00 to 1.22 kΩ B5-1 - B5-2 40°C (104°F) 0.80 to 1.00 kΩ B5-1 - B5-2 45°C (113°F) 0.65 to 0.85 kΩ B5-1 - B5-2 50°C (122°F) 0.50 to 0.70 kΩ B5-1 - B5-2 55°C (131°F) 0.44 to 0.60 kΩ B5-1 - B5-2 60°C (140°F) 0.36 to 0.50 kΩ
- 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).
If the resistance is not as specified, replace the ambient temperature sensor.