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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (Audio, Visual And Navigation System) >> BOSE Audio With Navigation >> DTC/Circuit Diagnosis >> Disk Eject Signal Circuit >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONTINUITY DISK EJECT SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect multifunction switch connector and AV control unit connector.
    3. Check continuity between multifunction switch harness connector and AV control unit harness connector.
      CONTINUITY SPECIFICATION

      Multifunction switch AV control unit Continuity
      Connector Terminal Connector Terminal
      M72 14 M85 29 Existed
    4. Check continuity between multifunction switch harness connector and ground.
    CONTINUITY SPECIFICATION

    Multifunction switch Ground Continuity
    Connector Terminal
    M72 14 Not existed

    Is the inspection result normal? 

    YES: Go to 2.

    NO: Repair harness or connector.

  2. CHECK AV CONTROL UNIT VOLTAGE
  1. Connect multifunction switch connector and AV control unit connector.
  2. Turn ignition switch ON.
  3. Check voltage between AV control unit harness connector and ground.
VOLTAGE SPECIFICATION

(+) (-) Condition Voltage (Approx.)
AV control unit
Connector Terminal
M85 29 Ground Pressing the eject switch 0 V
Except for above 5.0 V

Is the inspection result normal? 

YES: Replace preset switch. Refer to "EXPLODED VIEW ".

NO: Replace AV control unit. Refer to "EXPLODED VIEW ".