Inspection Procedure

Fig 1: Identifying Radio Receiver Connector Terminals

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1. Disconnect the K53, K54 and K56 receiver connectors.
2. Measure the resistance of the receiver.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   K53-9 (TXM+) - K53-10 (TXM-)	60 to 80 Ω
   K54-5 (ATX+) - K54-15 (ATX-)	60 to 80 Ω
   K56-9 (TX+) - K56-10 (TX-)	60 to 80 Ω

NG: REPLACE RADIO RECEIVER ASSEMBLY 

OK: Go to next step 

HINT:

For details of the connectors, 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. 

Fig 2: AVC-LAN - Wiring Diagram

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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