Toyota Venza: System Description

Toyota Venza Service Manual / Window / Glass / Window Defogger System / 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 ...

Other materials about Toyota Venza:

Freeze Frame Data
FREEZE FRAME DATA 1. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Navigation System / Trouble Codes. (e) Select a DTC to ...

Motor Circuit Malfunction (C1522-C1555)
DESCRIPTION The power steering ECU supplies current to the power steering motor through the motor circuit. DTC No. DTC Detection Condition Trouble Area C1522 Motor current sensor malfunction ...

On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The procedure listed below is for the LH side. PROCEDURE 1. REMOVE REAR WHEEL 2. SEPARATE REAR FLEXIBLE HOSE 3. SEPARATE REAR DI ...