Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK USB INTERFACE HARNESS CONTINUITY 
   1. Turn ignition switch OFF.
   2. Disconnect AV control unit connector M55 and USB interface connector M209.
   3. Check continuity between AV control unit connector M55 and USB interface connector M209.

      AV control unit		USB interface		Continuity
      Connector	Terminal	Connector	Terminal
      M55	137	M209	1	Yes
      	138		2
      	139		3
      	140		4
      	141		5

   4. Check continuity between AV control unit connector M55 and ground.

      AV control unit		-	Continuity
      Connector	Terminal
      M55	137	Ground	No
      	139

      Is the inspection result normal? 

      YES: Replace the USB interface. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness or connectors.