DESCRIPTION
When the rear window defogger switch on the air conditioning control assembly is pressed, the operation signal is transmitted to the air conditioning amplifier assembly through the LIN communication line. When the air conditioning amplifier assembly receives the signal, it turns on the DEICER relay to operate the windshield deicer.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK WINDOW DEFOGGER SYSTEM |
(a) Turn the ignition switch to ON, press the rear window defogger switch, and
check that the window defogger operates (See page
).
OK:
The window defogger system operates normally.
NG | ![]() |
GO TO WINDOW DEFOGGER SYSTEM |
|
2. |
INSPECT DEICER RELAY |
(a) Remove the DEICER relay from the engine room relay block. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
3 - 5 |
Battery voltage applied between terminals 1 and 2 |
Below 1 Ω |
3 - 5 |
Battery voltage not applied between terminals 1 and 2 |
10 kΩ or higher |
NG | ![]() |
REPLACE DEICER RELAY |
|
3. |
CHECK HARNESS AND CONNECTOR (DEICER RELAY POWER SOURCE) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (DEICER RELAY - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(a) Disconnect the D47 air conditioning amplifier assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Engine room relay block DEICER relay terminal 1 - D47-18 (D) |
Always |
Below 1 Ω |
D47-14 (GND) - Body ground |
Always |
Below 1 Ω |
D47-18 (D) - Body ground |
Always |
10 kΩ or higher |
*1 |
Engine Room Relay Block |
*2 |
DEICER Relay Terminal |
*3 |
Front view of wire harness connector (to Air Conditioning Amplifier Assembly) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
CHECK HARNESS AND CONNECTOR (DEICER RELAY POWER SOURCE) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
CHECK HARNESS AND CONNECTOR (DEICER RELAY - WINDSHIELD DEICER WIRE) |
(a) Disconnect the A3 windshield deicer wire connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A3-1 (B) - engine room relay block DEICER relay terminal 3 |
Always |
Below 1 Ω |
A3-1 (B) - Body ground |
Always |
10 kΩ or higher |
Engine room relay block DEICER relay terminal 3 - Body ground |
Always |
10 kΩ or higher |
*1 |
Engine Room Relay Block |
*2 |
DEICER Relay Terminal |
*3 |
Front view of wire harness connector (to Windshield Deicer Wire) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
7. |
CHECK HARNESS AND CONNECTOR (WINDSHIELD DEICER WIRE - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK | ![]() |
REPLACE WINDSHIELD GLASS (WINDSHIELD DEICER WIRE) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Front Occupant Classification Sensor LH Circuit Malfunction (B1780)
DESCRIPTION
The front occupant classification sensor LH circuit consists of the occupant
classification ECU and front occupant classification sensor LH.
DTC B1780 is recorded when a malfunction is detected in the front occupant classification
sensor LH c ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
Microphone
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE INNER REAR VIEW MIRROR STAY HOLDER COVER
2. REMOVE TELEPHONE MICROPHONE ASSEMBLY (INNER REAR VIEW MIRROR ASSEMBLY)
Installation
INSTALLATION
PROCEDURE
1. INSTALL TE ...