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Diagnosis Procedure
1.CHECK TEL VOICE SIGNAL CIRCUIT
  1. Turn the electric motor switch OFF.
  2. Disconnect AV control unit and TCU harness connector.
  3. Check the continuity between AV control unit harness connector and ground.
    AV control unitGroundContinuity
    ConnectorTerminal
    M102*1
    M124*2
    		32Not existed
    52
    *1: Without BOSE
    *2: With BOSE
Is the inspection result normal?
Replace AV control unit. Refer to Removal and Installation.
Repair or replace harness or connector.