Toyota Yaris: Heating / Air Conditioning / Ambient Temperature Sensor
Components
COMPONENTS
ILLUSTRATION
*1 | THERMISTOR ASSEMBLY | - | - |
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT BUMPER ASSEMBLY
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2. REMOVE THERMISTOR ASSEMBLY
(b) Disconnect the connector to remove the thermistor assembly.
Inspection
INSPECTION
PROCEDURE
1. INSPECT THERMISTOR ASSEMBLY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below. Standard resistance: Tester Connection | Condition | Specified Condition | A52-1 (SO-) - A52-2 (SO+) | 10°C (50°F) | 3.00 to 3.73 kΩ | A52-1 (SO-) - A52-2 (SO+) | 15°C (59°F) | 2.45 to 2.88 kΩ | A52-1 (SO-) - A52-2 (SO+) | 20°C (68°F) | 1.95 to 2.30 kΩ | A52-1 (SO-) - A52-2 (SO+) | 25°C (77°F) | 1.60 to 1.80 kΩ | A52-1 (SO-) - A52-2 (SO+) | 30°C (86°F) | 1.28 to 1.47 kΩ | A52-1 (SO-) - A52-2 (SO+) | 35°C (95°F) | 1.00 to 1.22 kΩ | A52-1 (SO-) - A52-2 (SO+) | 40°C (104°F) | 0.80 to 1.00 kΩ | A52-1 (SO-) - A52-2 (SO+) | 45°C (113°F) | 0.65 to 0.85 kΩ | A52-1 (SO-) - A52-2 (SO+) | 50°C (122°F) | 0.50 to 0.70 kΩ | A52-1 (SO-) - A52-2 (SO+) | 55°C (131°F) | 0.44 to 0.60 kΩ | A52-1 (SO-) - A52-2 (SO+) | 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.
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When measuring, the sensor temperature must be the same as the ambient temperature.
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Use a thermometer to detect the ambient temperature of the installation area around the thermistor assembly.
HINT: As the temperature increases, the resistance decreases (see the graph). If the specified condition is not met, replace the thermistor assembly. |
| *a | Component without harness connected (Thermistor Assembly) | *b | Sensing Portion | *c | Resistance (kΩ) | *d | Temperature (°C (°F)) | *e | Allowable Range | | |
Installation
INSTALLATION
PROCEDURE
1. INSTALL THERMISTOR ASSEMBLY
(a) Connect the connector. | |
(b) Engage the clamp to install the thermistor assembly.
2. INSTALL FRONT BUMPER ASSEMBLY
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INSTALLATION PROCEDURE 1. TEMPORARILY INSTALL AIR CONDITIONER UNIT ASSEMBLY (a) Temporarily install the air conditioner unit assembly to the instrument panel reinforcement assembly with the 3 bolts...
Other information:
ComponentsCOMPONENTS ILLUSTRATION
*1 ROOF TOP MOULDING SUB-ASSEMBLY - - RemovalREMOVAL PROCEDURE 1. REMOVE ROOF HEADLINING Click here
2. REMOVE ROOF TOP MOULDING SUB-ASSEMBLY (a) Remove the nut.
(b) Apply protective tape around the roof top moulding sub-assembly...
REPLACEMENT PROCEDURE 1. SEPARATE NO. 1 ENGINE UNDER COVER ASSEMBLY Click here
2. DRAIN ENGINE COOLANT CAUTION:
When engine coolant is hot, do not remove the reserve tank cap or the radiator drain cock plug.
Fluid and steam may spray out due to high pressure, possibly resulting in burns...
Categories
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is
dangerous.
The person in the luggage compartment/trunk could be seriously injured or
killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open
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