AVC-LAN Circuit: Procedure

1. Remove the multi-media module receiver assembly.
2. Measure the resistance according to the value(s) in the table below.

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   Standard Resistance

   Tester Connection	Condition	Specified Condition
   7 (TX1+) - 8 (TX1-)	Always	60 to 80 Ω
   45 (TX3+) - 46 (TX3-)	Always	60 to 80 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Multi-media Module Receiver Assembly)

NG → See step   4 

OK: Go to next step 

1. Disconnect the J125 multi-media module receiver assembly connector.
2. Disconnect the J126 multi-display assembly connector.
3. Disconnect the J76 network gateway ECU connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J125-7 (TX1+) - J76-6 (GTX+)	Always	Below 1 Ω
   J125-8 (TX1-) - J76-21 (GTX-)	Always	Below 1 Ω
   J125-45 (TX3+) - J126-7 (TX+)	Always	Below 1 Ω
   J125-46 (TX3-) - J126-19 (TX-)	Always	Below 1 Ω
   J125-7 (TX1+) - Body ground	Always	10 kΩ or higher
   J125-8 (TX1-) - Body ground	Always	10 kΩ or higher
   J125-45 (TX3+) - Body ground	Always	10 kΩ or higher
   J125-46 (TX3-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. 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.

NG → See step   4 

OK → REPLACE MALFUNCTIONING PARTS