Lexus NX: Ambient Temperature Sensor
Components
COMPONENTS
ILLUSTRATION
*1 | THERMISTOR ASSEMBLY (AMBIENT TEMPERATURE SENSOR) | - | - |
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT BUMPER ASSEMBLY
(a) for Sport Package:
Click here
(b) except Sport Package:
Click here
2. REMOVE THERMISTOR ASSEMBLY (AMBIENT TEMPERATURE SENSOR)
(b) Disconnect the connector and remove the thermistor assembly (ambient temperature sensor).
Inspection
INSPECTION
PROCEDURE
1. INSPECT THERMISTOR ASSEMBLY (AMBIENT TEMPERATURE SENSOR)
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | 1 - 2 | 10°C (50°F) | 3.00 to 3.73 kΩ | 15°C (59°F) | 2.45 to 2.88 kΩ | 20°C (68°F) | 1.95 to 2.30 kΩ | 25°C (77°F) | 1.60 to 1.80 kΩ | 30°C (86°F) | 1.28 to 1.47 kΩ | 35°C (95°F) | 1.00 to 1.22 kΩ | 40°C (104°F) | 0.80 to 1.00 kΩ | 45°C (113°F) | 0.65 to 0.85 kΩ | 50°C (122°F) | 0.50 to 0.70 kΩ | 55°C (131°F) | 0.44 to 0.60 kΩ | 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.
-
Use a thermometer to detect the ambient temperature of the installation area around the thermistor assembly (ambient temperature sensor).
HINT: As the temperature increases, the resistance decreases (see the graph). -
If the result is not as specified, replace the thermistor assembly (ambient temperature sensor).
| | *a | Component without harness connected (Thermistor Assembly (Ambient Temperature Sensor)) | *b | Sensing Portion | *c | Resistance (kΩ) | *d | Temperature (°C (°F)) | *e | Allowable Range | | |
Installation
INSTALLATION
PROCEDURE
1. INSTALL THERMISTOR ASSEMBLY (AMBIENT TEMPERATURE SENSOR)
(a) Connect the connector.
(b) Attach the clamp to install the thermistor assembly (ambient temperature sensor).
2. INSTALL FRONT BUMPER ASSEMBLY
(a) for Sport Package:
Click here
(b) except Sport Package:
Click here
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