Toyota Venza manuals

Toyota Venza: Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier

Toyota Venza Service Manual / Navigation / Multi Info Display / Navigation System / Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier

DESCRIPTION

The navigation receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly or speakers.

WIRING DIAGRAM


PROCEDURE

1.

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

(a) Disconnect the E38 navigation receiver assembly connector.

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

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E14-5 (R+) - E38-1 (FR+)

Always

Below 1 Ω

E14-4 (R-) - E38-5 (FR-)

Always

Below 1 Ω

E14-3 (L+) - E38-2 (FL+)

Always

Below 1 Ω

E14-2 (L-) - E38-6 (FL-)

Always

Below 1 Ω

E14-6 (SLD) - Body ground

Always

10 kΩ or higher

E14-5 (R+) - Body ground

Always

10 kΩ or higher

E14-4 (R-) - Body ground

Always

10 kΩ or higher

E14-3 (L+) - Body ground

Always

10 kΩ or higher

E14-2 (L-) - Body ground

Always

10 kΩ or higher


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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