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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 124 (Audio, Visual & Navigation System (DTC/Circuit Diagnosis) (BOSE Audio W/NAVI W/O Surround) (Except Hybrid) (1 Of 2)) >> DTC/Circuit Diagnosis >> DTC U1300: Av Comm Circuit >> Description >> Self Diagnostic Result Display Item

Self Diagnostic Result Display Item

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
CONSULT Display DTC Detection Condition Possible Cause
  • AV COMM CIRCUIT [U1300]
  • SWITCH CONN [U1240]
 When any of the following is detected:
  • Multifunction switch power supply or ground circuit malfunction.
  • AV communication circuit malfunction between AV control unit and multifunction switch.
  • Multifunction switch power supply and ground circuits.

    Refer to DIAGNOSIS PROCEDURE .

  • AV communication circuits between AV control unit and multifunction switch.
  • AV COMM CIRCUIT [U1300]
  • AMP CONN

    [U124E]

 When any of the following is detected:
  • BOSE speaker amp. power supply or ground circuit malfunction.
  • AV communication circuits between AV control unit and BOSE speaker amp. are malfunctioning.
  • BOSE speaker amp. power supply and ground circuits.

    Refer to DIAGNOSIS PROCEDURE .

  • AV communication circuits between AV control unit and BOSE speaker amp.
  • AV COMM CIRCUIT [U1300]
  • VIDEO DIST CONN [U1246]
 When any of the following is detected:
  • video distributor power supply or ground circuit malfunction.
  • headrest display unit (driver seat) power supply or ground circuit malfunction.
  • AV communication circuit malfunction between AV control unit and headrest display unit (driver seat).
  • Video distributor power supply and ground circuits.

    Refer to DIAGNOSIS PROCEDURE .

  • Headrest display unit (driver seat) power supply and ground circuits.

    Refer to DIAGNOSIS PROCEDURE .

  • AV communication circuits between AV control unit and headrest display unit (driver seat).
  • AV COMM CIRCUIT [U1300]
  • AROUND CAMERA CONN

    [U125B]

 When any of the following is detected:
  • around view monitor control unit power supply or ground circuit malfunction.
  • AV communication circuit malfunction between AV control unit and around view monitor control unit.
  • Around view monitor control unit power supply and ground circuits.

    Refer to DIAGNOSIS PROCEDURE .

  • AV communication circuits between AV control unit and around view monitor control unit.
  • AV COMM CIRCUIT [U1300]
  • SONAR CONN [U125C]
 When any of the following is detected:
  • sonar control unit power supply or ground circuit malfunction.
  • AV communication circuit malfunction between AV control unit and sonar control unit.
  • Sonar control unit power supply and ground circuits.

    Refer to DIAGNOSIS PROCEDURE .

  • AV communication circuits between AV control unit and sonar control unit.
  • AV COMM CIRCUIT [U1300]
  • SWITCH CONN [U1240]
  • SONAR CONN [U125C]
  • AROUND CAMERA CONN

    [U125B]

  • VIDEO DIST CONN [U1246]
 AV communication circuit malfunction between AV control unit and multifunction switch. AV communication circuits between AV control unit and multifunction switch.
  • AV COMM CIRCUIT [U1300]
  • SWITCH CONN [U1240]
  • AMP CONN

    [U124E]

  • SONAR CONN [U125C]
  • AROUND CAMERA CONN

    [U125B]

  • VIDEO DIST CONN [U1246]
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