Toyota Yaris: Heating / Air Conditioning / Room Temperature Sensor
Components
COMPONENTS
ILLUSTRATION
*1 | NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY | *2 | COOLER THERMISTOR (ROOM TEMPERATURE SENSOR) |
*3 | ASPIRATOR | - | - |
Removal
REMOVAL
PROCEDURE
1. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
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2. REMOVE COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)
(a) Disconnect the connector and aspirator. | |
(b) Using a screwdriver with its tip wrapped in protective tape, disengage the claws to remove the cooler thermistor (room temperature sensor). | |
Inspection
INSPECTION
PROCEDURE
1. INSPECT COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection | Condition | Specified Condition | H58-1 (+) - H58-2 (-) | 10°C (50°F) | 3.00 to 3.73 kΩ | H58-1 (+) - H58-2 (-) | 15°C (59°F) | 2.45 to 2.88 kΩ | H58-1 (+) - H58-2 (-) | 20°C (68°F) | 1.95 to 2.30 kΩ | H58-1 (+) - H58-2 (-) | 25°C (77°F) | 1.60 to 1.80 kΩ | H58-1 (+) - H58-2 (-) | 30°C (86°F) | 1.28 to 1.47 kΩ | H58-1 (+) - H58-2 (-) | 35°C (95°F) | 1.00 to 1.22 kΩ | H58-1 (+) - H58-2 (-) | 40°C (104°F) | 0.80 to 1.00 kΩ | H58-1 (+) - H58-2 (-) | 45°C (113°F) | 0.65 to 0.85 kΩ | H58-1 (+) - H58-2 (-) | 50°C (122°F) | 0.50 to 0.70 kΩ | H58-1 (+) - H58-2 (-) | 55°C (131°F) | 0.44 to 0.60 kΩ | H58-1 (+) - H58-2 (-) | 60°C (140°F) | 0.36 to 0.50 kΩ | NOTICE: -
Hold the cooler thermistor (room temperature sensor) only by its connector. Touching the sensing portion may change the resistance value.
-
When measuring, the cooler thermistor (room temperature 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 | | |
Installation
INSTALLATION
PROCEDURE
1. INSTALL COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)
(a) Engage the claws to install the cooler thermistor (room temperature sensor). | |
(b) Connect the connector and aspirator.
2. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
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Other information:
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during engine unit removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/Replaced Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Engine assembly
Cylinder head sub-assembly
Camshaft (for intake or exhaust camshaft)
Camshaft timing gear assembly
Camshaft timing exhaust gear assembly
Fuel injector assembly
Fuel pump (for low pressure side)
Fuel pump assembly (for high pressure side)
Fuel pressure sensor (for low pressure side)
Fuel pressure sensor (for high pressure side)
Spark plug
Ignition coil assembly
Air intake system parts
Exhaust system parts
Turbocharger sub-assembly
Inspection after repair
Poor idle, etc...
INSTALLATION CAUTION / NOTICE / HINT NOTICE: This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts. Click here
PROCEDURE 1. INSTALL FUEL INJECTOR SEAL (a) Apply engine conditioner to the area shown in the illustration...
Categories
The front and side supplemental restraint systems (SRS) include different
types of air bags. Please verify the different types of air bags
which are equipped on your vehicle by locating the “SRS AIRBAG”
location indicators. These indicators are visible in the area where the
air bags are installed.
The air bags are installed in the following locations:
The steering wheel hub (driver air bag)
The front passenger dashboard (front passenger air bag)
The outboard sides of the front seatbacks (side air bags)
The front and rear window pillars, and the roof edge along both
sides (curtain air bags)
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