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Home >> Infiniti >> 2011 >> M56 x >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Audio, Visual & Navigation System (BOSE Audio With Navigation)) >> System Description >> Diagnosis System (Av Control Unit) >> On Board Diagnosis Function >> Self-Diagnosis Results
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Self-Diagnosis Results

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.

Check the applicable display at the following table, and then repair the malfunctioning parts.

Only Unit Part Is Displayed In Red.

Screen switch Description Possible malfunction location/Action to take
Control Unit Malfunction is detected in AV control unit power supply and ground circuits. Check AV control unit power supply and ground circuits.
Refer to "AV CONTROL UNIT: DIAGNOSIS PROCEDURE ".
When detecting no malfunction in those components, replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".
Amplifier When either one of the following items are detected:
  • sound signal circuits between BOSE amp. and each speaker are malfunctioning.
  • sound signal circuits between BOSE amp. and either front or rear microphone is malfunctioning.
  • BOSE amp. malfunction is detected.
  • Malfunctioning speaker circuits
  • Malfunctioning front or rear microphone circuits
  • Replace BOSE amp. Refer to "REMOVAL AND INSTALLATION ".

A Connecting Cable Between Units Is Displayed In Yellow.

Area with yellow connection lines Description Possible malfunction location/Action to take
Control unit <==> Front Display Malfunction is detected in serial communication circuits between AV control unit and display unit. Serial communication circuits between AV control unit and display unit.
Control unit <==> GPS Antenna GPS antenna connection malfunctions detected. GPS antenna
Control unit <==> SAT Antenna Satellite radio antenna connection malfunction is detected. Satellite radio antenna disconnection
Control unit <==> Amplifier When either one of the following items are detected:
  • BOSE amp. power supply and ground circuits are malfunctioning.
  • AV communication circuits between multifunction switch and BOSE amp. are malfunctioning.
  • BOSE amp. power supply and ground circuits.

    Refer to "BOSE AMP.: DIAGNOSIS PROCEDURE ".

  • AV communication circuits between multifunction switch and BOSE amp.
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