Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ).
2. REMOVE FRONT DOOR SCUFF PLATE LH
3. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH
4. REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL
5. REMOVE ROOM TEMPERATURE SENSOR
(a) Disengage the 2 claws and remove the room temperature sensor. |
|
Inspection
INSPECTION
PROCEDURE
1. INSPECT 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 |
1 - 2 |
15°C (59°F) |
2.45 to 2.88 kΩ |
1 - 2 |
20°C (68°F) |
1.95 to 2.30 kΩ |
1 - 2 |
25°C (77°F) |
1.60 to 1.80 kΩ |
1 - 2 |
30°C (86°F) |
1.28 to 1.47 kΩ |
1 - 2 |
35°C (95°F) |
1.00 to 1.22 kΩ |
1 - 2 |
40°C (104°F) |
0.80 to 1.00 kΩ |
1 - 2 |
45°C (113°F) |
0.65 to 0.85 kΩ |
1 - 2 |
50°C (122°F) |
0.50 to 0.70 kΩ |
1 - 2 |
55°C (131°F) |
0.44 to 0.60 kΩ |
1 - 2 |
60°C (140°F) |
0.36 to 0.50 kΩ |
NOTICE:
HINT:
As the temperature increases, the resistance decreases (see the graph).
If the resistance is not as specified, replace the room temperature sensor.
Text in Illustration
*1 |
Component without harness connected (Room Temperature Sensor) |
*2 |
Sensing Portion |
Installation
INSTALLATION
PROCEDURE
1. INSTALL ROOM TEMPERATURE SENSOR
(a) Engage the 2 claws to install the room temperature sensor. |
|
2. INSTALL LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL
3. INSTALL COWL SIDE TRIM SUB-ASSEMBLY LH
4. INSTALL FRONT DOOR SCUFF PLATE LH
5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ).
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Perform troubleshooting in accordance with the following flowchart.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
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Power Source Circuit
DESCRIPTION
This circuit supplies power source voltage from the battery to terminal B of
the steering lock ECU (steering lock actuator assembly). This is used as power source
for the CPU, motor, communication, and peripheral circuits.
WIRING DIAGRAM
P ...
Light bulbs
You may replace the following bulbs yourself. The difficulty level of replacement
varies depending on the bulb. If necessary bulb replacement seems difficult to perform,
contact your Toyota dealer.
For more information about replacing other light bulbs, c ...