Toyota Venza: Navigation Voice Circuit

Toyota Venza Service Manual / Navigation / Multi Info Display / Navigation System / Navigation Voice Circuit

DESCRIPTION

This circuit is used when the voice switch of the steering pad switch assembly is pushed.

Using this circuit, the navigation receiver assembly sends signals to the stereo component amplifier assembly.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)

(a) Disconnect the E39 navigation receiver assembly connector.

(b) Disconnect the E14 stereo component amplifier assembly connector.

Standard Resistance:

Tester connection	Condition	Specified condition
E39-2 (RL+) - E14-15 (II1+)	Always	Below 1 Ω
E39-6 (RL-) - E14-14 (II1-)	Always	Below 1 Ω
E14-15 (II1+) - Body ground	Always	10 kΩ or higher
E14-14 (II1-) - Body ground	Always	10 kΩ or higher
E14-18 (SLD1) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

AVC-LAN Circuit

DESCRIPTION Each unit of the navigation system connected to the AVC-LAN (communication bus) transmits switch signals via AVC-LAN communication. If a short to +B or short to ground occurs in the AV ...

Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter

DESCRIPTION The stereo component amplifier assembly receives a vehicle speed signal from the combination meter assembly to control the ASL function. HINT: A voltage of 12 V or 5 V is outp ...

Other materials about Toyota Venza:

Poor Sound Quality in All Modes (Low Volume)
PROCEDURE 1. CHECK AUDIO SETTINGS (a) Set treble, middle and bass to the initial values and check that the sound is normal. OK: The sound returns to normal. HINT: Sound quality adjustment measures vary according to the ...

Installation
INSTALLATION PROCEDURE 1. INSTALL REAR SEAT ASSEMBLY RH (a) Place the rear seat assembly RH in the cabin. NOTICE: Be careful not to damage the vehicle body. (b) Temporarily install the 2 bolts on the front side of the seat. ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the window defogger system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT ...