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:
DESCRIPTION The ECM communicates with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U010087 Lost Communication with ECM/PCM "A" Missing Message When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 1 second or more...
C..
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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