Toyota 4Runner: Inspection

Toyota 4Runner Service Manual / Vehicle Interior / Heating / Air Conditioning / Front Evaporator Temperature Sensor / Inspection

INSPECTION

PROCEDURE

1. INSPECT NO. 1 COOLER THERMISTOR

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 - 2	-10°C (14°F)	7.30 to 9.10 kΩ
1 - 2	-5°C (23°F)	5.65 to 6.95 kΩ
1 - 2	0°C (32°F)	4.40 to 5.35 kΩ
1 - 2	5°C (41°F)	3.40 to 4.15 kΩ
1 - 2	10°C (50°F)	2.70 to 3.25 kΩ
1 - 2	15°C (59°F)	2.14 to 2.58 kΩ
1 - 2	20°C (68°F)	1.71 to 2.05 kΩ
1 - 2	25°C (77°F)	1.38 to 1.64 kΩ
1 - 2	30°C (86°F)	1.11 to 1.32 kΩ

HINT:

As the temperature increases, the resistance decreases (refer to the graph).

NOTICE:

Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor.

When measuring the resistance, make sure the sensor temperature is almost the same as the ambient temperature.

If the result is not as specified, replace the No. 1 cooler thermistor.

Text in Illustration

*1	Sensor
*a	Component without harness connected (No. 1 Cooler Thermistor)
*b	Resistance (kΩ)
*c	Temperature (°C(°F))

Removal

REMOVAL PROCEDURE 1. REMOVE AIR CONDITIONING UNIT (a) Remove the air conditioning unit (See page ). ...

Installation

INSTALLATION PROCEDURE 1. INSTALL AIR CONDITIONING UNIT (a) Install the air conditioning unit (See page ). ...

Other materials about Toyota 4Runner:

Precaution
PRECAUTION 1. TIRE PRESSURE WARNING ECU EXPRESSIONS (a) The tire pressure monitor receiver assembly is referred to as the tire pressure warning ECU in this section. 2. TIRE PRESSURE WARNING SYSTEM PRECAUTION (a) It is necessary for the tire pressures to ...

If the engine will not start
If the engine will not start even though correct starting procedures are being followed (, 173), consider each of the following points: The engine will not start even though the starter motor operates normally. One of the following may be the cause of the ...