Toyota Venza: System Description
SYSTEM DESCRIPTION
1. GENERAL
The rear window defogger wires are attached to the inside of the rear window and defog the window surface quickly by pressing the rear window defogger switch on the air conditioning control assembly. The indicator light is illuminated while the system is operating. The system automatically turns off after approximately 15 minutes.
HINT:
- The rear window defogger is linked with the mirror heater and windshield deicer.
- If both of the following conditions are met after approximately 15 minutes
from the rear window defogger was activated, the rear window defogger continues
to operate up to 45 minutes. If any of the following conditions are not
met, the rear window defogger stops operating immediately.
- The outside temperature is 0°C (32 °F) or below.
- The vehicle speed is 60 km/h (37 mph) or more.
2. FUNCTION OF MAIN COMPONENT
|
Component |
Outline |
|---|---|
|
RR DEF Relay |
Receives rear window defogger activation request signal from the air conditioning amplifier assembly and supplies power to the rear window defogger. |
|
Rear Window Defogger Wire |
Receives power from the RR DEF relay and heats the window using the rear window defogger wires. |
Precaution
PRECAUTION
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following systems after the cable is reconnected.
System Name
See Proc ...
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU
Receiving ECU
Signal
Communication Method
Air Conditioning Control Assembly
...
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DESCRIPTION
DTC No.
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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" ...
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