RM35X0E _56 Audio / Visual / Telematics _078379 NAVIGATION / MULTI INFO DISPLAY _0380999 NAVIGATION SYSTEM J

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM  Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier  


DESCRIPTION

This circuit sends a signal to the stereo component amplifier assembly to mute noise. Because of that, the noise produced by changing the sound source ceases.

If there is an open in the circuit, noise can be heard from the speakers when changing the sound source.

If there is a short in the circuit, even though the stereo component amplifier assembly is functioning normally, no sound or only an extremely faint sound can be heard.

WIRING DIAGRAM

E380010E25
1.031,1.708 2.25,2.146 1.219,0.438 10 false Stereo Component Amplifier Assembly 1.031,1.521 1.542,1.75 0.51,0.229 10 false N169 5.146,1.552 5.51,1.781 0.365,0.229 10 false O5 5.156,1.719 6.344,2.177 1.188,0.458 10 false Radio and Display Receiver Assembly 5.281,0.927 5.74,1.135 0.458,0.208 10 false MUT1 5.01,0.781 5.281,1.021 0.271,0.24 10 false 25 2.052,0.802 2.323,1.042 0.271,0.24 10 false 1 1.531,0.906 2.021,1.115 0.49,0.208 10 false MUTE

CAUTION / NOTICE / HINT

NOTICE:

When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:

·

A communication malfunction DTC may be stored.

·

The radio and display receiver assembly may not operate normally.



HINT:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>PRECAUTION


PROCEDURE

1.INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY
a.
E418275C01
1.479,0.792 1.938,1.073 0.458,0.281 2.396,1.885 2.865,2.385 false 0.208,0.167 0.365,0.333 0.156,0.167 10 false *a 1.542,0.854 1.938,1.094 0.396,0.24 10 false N169 2.698,2.417 3.125,2.583 0.427,0.167 10 false MUTE
*a Component with harness connected
(Stereo Component Amplifier Assembly)


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

Standard Voltage:
Tester Connection Condition Specified Condition
N169-1 (MUTE) - Body ground Ignition switch ACC, audio system playing
→ Changing modes 		2.0 V or higher
→ Below 1 V



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>PROBLEM SYMPTOMS TABLE


NG

2.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)
2.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)
a.

Disconnect the O5 radio and display receiver assembly connector.


b.

Disconnect the N169 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
O5-25 (MUT1) - N169-1 (MUTE) Always Below 1 Ω
O5-25 (MUT1) or N169-1 (MUTE) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

3.INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY (OUTPUT SIGNAL)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY (OUTPUT SIGNAL)
a.
E382034C24
1.5,0.271 1.917,0.521 0.417,0.25 2.375,2.906 2.135,2.385 false 1.625,0.313 2.094,0.583 0.469,0.271 10 false O5 0.156,0.125 0.469,0.323 0.313,0.198 10 false *a 2.333,2.927 2.865,3.188 0.531,0.26 10 false MUT1
*a Front view of wire harness connector
(to Radio and Display Receiver Assembly)


Disconnect the radio and display receiver assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
O5-25 (MUT1) - Body ground Ignition switch ACC, audio system is playing 2.0 V or higher



Result:
Proceed to
OK
NG



OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL


NG

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>STEREO COMPONENT AMPLIFIER>REMOVAL