Inspection Procedure

1. Disconnect the radio receiver connector.
2. Measure the resistance according to the value(s) in RADIO RECEIVER  .

   Standard resistance 

   RADIO RECEIVER
   
   

   Tester Connection	Condition	Specified Condition
   TX+ - TX-	Always	60 to 80 Ω

   Fig 1: Inspecting Radio Receiver

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RADIO RECEIVER 

OK: GO TO NEXT STEP 

HINT:

For details of the connectors, refer to the "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. 

      Fig 2: AVC-LAN - Wiring Diagram

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE