AVC-LAN Circuit [08/2015 - ]: Procedure

1. Remove the navigation receiver assembly. Refer to REMOVAL [08/2015 - ] .

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. 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)

NG → See step   5 

OK: Go to next step 

1. Disconnect the I8 navigation receiver assembly connector.
2. Disconnect the I69 stereo component amplifier assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I69-8 (TX+) - I8-7 (TX1+)	Always	Below 1 Ω
   I69-7 (TX-) - I8-8 (TX1-)	Always	Below 1 Ω
   I69-8 (TX+) - Body ground	Always	10 kΩ or higher
   I69-7 (TX-) - 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.

   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.

NG → See step   4 

OK → REPLACE MALFUNCTIONING PARTS