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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Audio, Visual & Navigation System (DTC/Circuit Diagnosis) (BOSE Audio Without Navigation) (Except Hybrid) (1 Of 2)) >> DTC/Circuit Diagnosis >> DTC U1300: Av Comm Circuit >> Description >> Self-Diagnosis Results Display Item

Self-Diagnosis Results 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.
  • 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]

  • HAND FREE CONN

    [U1256]

 When any of the following is detected:
  • Bluetooth® control unit power supply or ground circuit malfunction.
  • AV communication circuit malfunction between AV control unit and Bluetooth® control unit.
  • Bluetooth® control unit power supply and ground circuits.
  • AV communication circuits between AV control unit and Bluetooth® control unit.
  • AV COMM CIRCUIT

    [U1300]

  • SWITCH CONN

    [U1240]

  • HAND FREE CONN

    [U1256]

 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]
  • 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.
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