INSPECTION
PROCEDURE
1. INSPECT EVAPORATOR 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 (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 |
NOTICE:
HINT:
As the temperature increases, the resistance decreases (see the graph).
If the resistance is not as specified, replace the evaporator temperature sensor.
Text in Illustration
*1 |
Component without harness connected (Evaporator Temperature Sensor) |
*2 |
Sensing Portion |
Room Temperature Sensor
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 FR ...
Main Body Ecu
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE UPPER INSTRUMENT PANEL
HINT:
Refer to the procedure up to Remove Upper Instrument Panel Sub-assembly (See
page ).
2. REMOVE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEM ...
Front Occupant Classification Sensor RH Circuit Malfunction (B1781)
DESCRIPTION
The front occupant classification sensor RH circuit consists of the occupant
classification ECU and front occupant classification sensor RH.
DTC B1781 is recorded when a malfunction is detected in the front occupant classification
sensor RH c ...