AVC-LAN Circuit: Procedure

1. Disconnect the L114 and L116 display and navigation module display connectors.
   Fig 1: Identifying L114 & L116 Display And Navigation Module Display Connectors

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L116-9 (TX3+) - L116-10 (TX3-)	Always	60 to 80 Ω
   L114-12 (TX2+) - L114-13 (TX2-)	Always	60 to 80 Ω
   L114-1 (TX1+) - L114-2 (TX1-)*	Always	60 to 80 Ω

   • *: w/ Advanced Parking Guidance System
   TEXT IN ILLUSTRATION
   
   

   *A	w/ Advanced Parking Guidance System
   *a	Component without harness connected (Display and Navigation Module Display)

NG → See step   4 

OK: Go to next step 

HINT: 

For details of the connectors, refer to Terminals of ECU. Refer to TERMINALS OF ECU .

1. Referring to the AVC-LAN wiring diagram below, check all AVC-LAN circuits.
   1. Disconnect all connectors in all AVC-LAN circuits.
   2. Check for an open or short in all AVC-LAN circuits.

      OK

      There is no open or short circuit.

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