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

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM  AVC-LAN Circuit  


DESCRIPTION

Each unit of the navigation system connected to the AVC-LAN (communication bus) transmits signals via AVC-LAN communication.

If a short to +B or short to ground occurs in an AVC-LAN communication line, the navigation system will not function normally because communication is not possible.

WIRING DIAGRAM

E276615E55
2.958,2.208 4.938,2.396 1.979,0.188 10 false : AVC-LAN Communication Line 0.99,1.469 1.448,1.667 0.458,0.198 10 false N169 5.094,0.583 5.552,0.781 0.458,0.198 10 false TX1+ 5.052,1.615 6.26,2.063 1.208,0.448 10 false Radio and Display Receiver Assembly 0.99,1.625 2.198,2.198 1.208,0.573 10 false Stereo Component Amplifier Assembly 5.052,1.469 5.51,1.667 0.458,0.198 10 false O5 5.104,0.979 5.563,1.177 0.458,0.198 10 false TX1- 4.906,0.448 5.104,0.625 0.198,0.177 10 false 5 4.906,0.833 5.104,1.01 0.198,0.177 10 false 6 1.844,0.573 2.302,0.771 0.458,0.198 10 false TX+ 1.875,0.948 2.115,1.156 0.24,0.208 10 false TX- 2.177,0.448 2.375,0.625 0.198,0.177 10 false 8 2.177,0.833 2.375,1.01 0.198,0.177 10 false 7


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

·

The radio and display receiver assembly is the master unit.



PROCEDURE

1.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY
a.
E394515C10
1.583,0.813 1.99,1.031 0.406,0.219 2.271,2.417 2.635,1.813 true 2.823,2.417 2.771,1.813 true 1.698,0.833 2.01,1.031 0.313,0.198 10 false O5 2.198,2.448 2.604,2.698 0.406,0.25 10 false TX1- 2.792,2.448 3.167,2.667 0.375,0.219 10 false TX1+ 0.188,0.167 0.5,0.365 0.313,0.198 10 false *a
*a Component without harness connected
(Radio and Display Receiver Assembly)


Remove the radio and display receiver assembly.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O5-5 (TX1+) - O5-6 (TX1-) Always 60 to 80 Ω



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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


2.CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)
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
N169-8 (TX+) - O5-5 (TX1+) Always Below 1 Ω
N169-7 (TX-) - O5-6 (TX1-) Always Below 1 Ω
N169-8 (TX+) or O5-5 (TX1+) - Body ground Always 10 kΩ or higher
N169-7 (TX-) or O5-6 (TX1-) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

3.INSPECT MALFUNCTIONING PARTS

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.INSPECT MALFUNCTIONING PARTS
a.

Disconnect and reconnect each slave unit one by one until the master unit returns to normal.

HINT:
·

Check all slave units.

·

If disconnecting a slave unit causes the master unit to return to normal, the slave unit is defective and should be replaced.



OK:

Master unit returns to normal.



Result:
Proceed to
OK
NG



OK

REPLACE MALFUNCTIONING PARTS

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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