Lexus NX: Inspection

Lexus NX Service Manual / Vehicle Interior / Heating / Air Conditioning / Room Temperature Sensor / Inspection

INSPECTION

PROCEDURE

1. INSPECT COOLER THERMISTOR (ROOM 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.

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).

*a	Component without harness connected (Cooler Thermistor (Room Temperature Sensor))
*b	Sensing Portion
*c	Resistance (kΩ)
*d	Temperature (°C (°F))
*e	Allowable Range

SEE MORE:

Inspection

INSPECTION PROCEDURE 1. INSPECT CLEARANCE LIGHT ASSEMBLY LH (a) Apply battery voltage to the connector and check the light illumination condition. OK: Condition Specified Condition Battery positive (+) → 3 (DRL) Battery negative (-) → 2 (E) LED illuminates Battery positive (+)

Removal

REMOVAL PROCEDURE 1. REMOVE STEERING WHEEL ASSEMBLY Click here 2. REMOVE STEERING PAD SWITCH ASSEMBLY Click here 3. REMOVE CRUISE CONTROL MAIN SWITCH Click here 4. REMOVE SHIFT PADDLE SWITCH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Click here 5. REMOVE STEERING WHEEL HEATER CONTROL ASSEMBLY (

Lexus NX: Inspection

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Inspection

Removal