Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM100000000VJ64 |
Model Year Start: 2016 |
Model: Sienna |
Prod Date Range: [12/2015 - 11/2017] |
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: AVC-LAN Circuit; 2016 - 2017 MY Sienna [12/2015 - 11/2017] |
DESCRIPTION
Each unit of the navigation system connected to the AVC-LAN (communication bus) transfers switch signals through the AVC-LAN.
If a short to +B or short to ground occurs in the AVC-LAN, the navigation system will not function normally because communication is not possible.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
The navigation receiver assembly is the master unit.
PROCEDURE
1.
|
INSPECT NAVIGATION RECEIVER ASSEMBLY
|
(a) Remove the navigation receiver assembly (See page
).
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
7 (TX1+) - 8 (TX1-)
|
Always
|
60 to 80 Ω
|
Text in Illustration
*a
|
Component without harness connected
(Navigation Receiver Assembly)
|
OK
|
|
|
2.
|
CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)
|
(a) Disconnect the D153 navigation receiver assembly connector.
(b) Disconnect the L5 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
|
L5-8 (TX+) - D153-7 (TX1+)
|
Always
|
Below 1 Ω
|
L5-7 (TX-) - D153-8 (TX1-)
|
Always
|
Below 1 Ω
|
L5-8 (TX+) - Body ground
|
Always
|
10 kΩ or higher
|
L5-7 (TX-) - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
3.
|
INSPECT MALFUNCTIONING PARTS
|
(a) Disconnect and reconnect each slave unit one by one until the master unit returns to normal operation.
HINT:
-
Check all slave units.
-
If disconnecting a slave unit causes the master unit to return to normal operation, the slave unit is defective and should be replaced.
OK:
Master unit returns to normal operation.
OK |
|
REPLACE MALFUNCTIONING PARTS
|
|