Audio Mute Not Released

AUDIO UNIT MUTE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect voice activated control module connector and audio unit connector.
3. Check continuity between audio unit harness connector M87 terminal 9 (OR) and ground.
  1. 9 (OR) - Ground: Continuity should not exist.
OK or NG
1. OK: GO TO 2.
2. NG: Repair harness or connector.
Fig 1: Identifying Audio Unit Mute Signal Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK MUTE SIGNAL
1. Connect voice activated control module connector and audio unit connector.
2. Turn ignition switch ON.
3. Check the following.
  
  Fig 2: Terminal Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace audio unit.
2. NG: Replace voice activated control module.
Fig 3: Connecting Voice Activated Control Module Connector And Audio Unit Connector
Courtesy of NISSAN MOTOR CO., U.S.A.