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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Audio, Visual & Navigation System (DTC/Circuit Diagnosis) (Base Audio) (Except Hybrid)) >> 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]

  • 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.
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