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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Audio, Visual & Navigation System (Base Audio Without Navigation)) >> System Description >> Diagnosis System (Av Control Unit) >> CONSULT Function >> Self Diagnosis Result >> Self-diagnosis Results Display Item
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Self-diagnosis Results Display Item

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.
Error item Description Possible malfunction factor/Action to take
CAN COMM CIRCUIT [U1000] CAN communication malfunction is detected. Refer to "DIAGNOSIS PROCEDURE ".
CONTROL UNIT (CAN) [U1010] CAN initial diagnosis malfunction is detected. Replace the AV control unit if the malfunction occurs constantly.
Refer to "REMOVAL AND INSTALLATION ".
CONTROL UNIT (AV) [U1310] AV communication circuit initial diagnosis malfunction is detected.
Cont Unit [U1200] AV control unit malfunction is detected.
CAN CONT [U1216]
ST ANGLE SEN CALIB [U1232] Predictive course line center position adjustment of the steering angle sensor is incomplete. Adjust the predictive course line center position of the steering angle sensor. Refer to "WORK PROCEDURE ".
FRONT DISP CONN [U1243] When either one of the following items is detected:
  • display unit power supply and ground circuits are malfunctioning.
  • communication circuits between AV control unit and display unit are malfunctioning.
SAT CONN [U1255] When either one of the following items is detected:
  • satellite radio tuner power supply and ground circuit are malfunctioning.
  • communication circuits between AV control unit and satellite radio tuner are malfunctioning.
  • request signal circuit between AV control unit and satellite radio tuner are malfunctioning.
  • Satellite radio tuner power supply and ground circuit.

    Refer to "SATELLITE RADIO TUNER: DIAGNOSIS PROCEDURE ".

  • Communication circuit between AV control unit and satellite radio tuner.
  • Request signal circuit between AV control unit and satellite radio tuner.
  • AV COMM CIRCUIT [U1300]
  • SWITCH CONN [U1240]
 When either one of the following items is detected:
  • multifunction switch power supply and ground circuits are malfunctioning.
  • AV communication circuits between AV control unit and multifunction switch are malfunctioning.
  • 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 either one of the following items is detected:
  • TEL adapter unit power supply and ground circuits are malfunctioning.
  • AV communication circuits between AV control unit and TEL adapter unit are malfunctioning.
  • AV COMM CIRCUIT [U1300]
  • SWITCH CONN [U1240]
  • HAND FREE CONN [U1256]
 Malfunction is detected in AV communication circuits between AV control unit and multifunction switch. AV communication circuits between AV control unit and multifunction switch.
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