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

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM  Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver  


DESCRIPTION

The telematics transceiver sends a mute signal to the stereo component amplifier assembly.

The stereo component amplifier assembly controls the volume according to the mute signal from the telematics transceiver.

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

E464298E02
1,1.531 1.458,1.729 0.458,0.198 10 false N169 1,1.729 2.74,2.094 1.74,0.365 10 false Stereo Component Amplifier Assembly 4.969,0.781 5.208,0.99 0.24,0.208 10 false 14 2.052,0.771 2.281,0.958 0.229,0.188 10 false 24 1.521,0.927 1.979,1.125 0.458,0.198 10 false TMUT 5.292,0.896 5.781,1.094 0.49,0.198 10 false MUTE 4.99,1.531 5.448,1.729 0.458,0.198 10 false N164 5,1.719 6.771,2.104 1.771,0.385 10 false Telematics Transceiver

CAUTION / NOTICE / HINT

NOTICE:

When replacing the telematics transceiver, make sure to replace it with a new one.


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 TELEMATICS TRANSCEIVER
a.
E429895C20
1.5,0.802 1.896,1.052 0.396,0.25 0.969,1.813 0.594,0.823 true 0.188,0.125 0.5,0.323 0.313,0.198 10 false *a 0.365,0.646 0.875,0.854 0.51,0.208 10 false MUTE 1.552,0.844 1.979,1.042 0.427,0.198 10 false N164
*a Component with harness connected
(Telematics Transceiver)


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

Standard Voltage:
Tester Connection Condition Specified Condition
N164-14 (MUTE) - Body ground Ignition switch ACC
Audio system playing
→ Emergency call mode 		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 (STEREO COMPONENT AMPLIFIER ASSEMBLY - TELEMATICS TRANSCEIVER)
2.CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - TELEMATICS TRANSCEIVER)
a.

Disconnect the N169 stereo component amplifier assembly connector.


b.

Disconnect the N164 telematics transceiver connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N169-24 (TMUT) - N164-14 (MUTE) Always Below 1 Ω
N169-24 (TMUT) or N164-14 (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.
E427085C18
1.469,0.208 1.906,0.469 0.438,0.26 2.385,1.021 2.521,0.552 2.521,0.552 2.698,0.552 true 1.521,0.26 2.01,0.542 0.49,0.281 10 false N164 2.771,0.469 3.26,0.667 0.49,0.198 10 false MUTE 0.188,0.104 0.5,0.302 0.313,0.198 10 false *a
*a Front view of wire harness connector
(to Telematics Transceiver)


Disconnect the telematics transceiver connector.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
N164-14 (MUTE) - Body ground Ignition switch ACC 2.0 V or higher



Result:
Proceed to
OK
NG



OK

REPLACE TELEMATICS TRANSCEIVER

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS TRANSCEIVER (for RHD)>REMOVAL


NG

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

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