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Home >> Infiniti >> 2017 >> QX50 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (Base Audio Without Navigation) >> System Description >> Diagnosis System (Av Control Unit) >> Consult Function (Multi Av) >> Self Diagnosis Result >> Self-Diagnosis Results Display Item
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Self-Diagnosis Results Display Item

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.
CONTROL UNIT (AV) [U1310] AV communication circuit initial diagnosis malfunction is detected.
Cont Unit [U1200] AV control unit malfunction is detected.
CAN CONT [U1216]
SUB CPU CONN [U1228]
iPod CERTIFICATION [U1229]
Built - in AUDIO CONN [U122E]
USB CONTROLLER [U1225] USB connection malfunction is detected. Check that the connection to the USB connector is normal.
DSP CONN [U121D] AV control unit malfunction is detected.
  • If a disc can be played, then there is a possibility of the detection of a temporary malfunction.
  • Replace the AV control unit if the malfunction occurs constantly.
DSP COMM [U121E]
CONFIG UNFINISH [U122A] The writing of configuration data is incomplete. Write configuration data with CONSULT.
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 DESCRIPTION .
FRONT DISP CONN [U1243] When either one of the following items is detected:
  • display unit power supply and ground circuits malfunction is detected.
  • communication circuits between AV control unit and display unit.
  • Display unit power supply and ground circuits.
  • Communication circuits between AV control unit and AV display unit.
SAT CONN [U1255] When either one of the following items is detected:
  • satellite radio tuner power supply and ground circuit malfunction is detected.
  • malfunction is detected in communication circuits between AV control unit and satellite radio tuner.
  • malfunction is detected in request signal circuit between AV control unit and satellite radio tuner.
  • Satellite radio tuner power supply and ground circuit.
  • Communication circuit between AV control unit and satellite radio tuner.
  • Request signal circuit between AV control unit and satellite radio tuner.
USB OVERCURRENT [U1263] Detection of overcurrent in USB connector. Check USB harness between the AV control unit and USB connector.
  • 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 multifunction switch and TEL adapter unit are malfunctioning.
  • TEL adapter unit power supply and ground circuits.
  • AV communication circuits between multifunction switch and TEL adapter unit.
  • 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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