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Home >> Infiniti >> 2015 >> QX80 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (BOSE Audio With Navigation) (Diagnostic Trouble Codes (DTCS) U1207-B272C, Symptom Tests And R & I) >> Symptom Diagnosis >> Multi Av System Symptoms >> Symptom Table >> Related To Headrest Display Unit And Rear Auxiliary Input

Related To Headrest Display Unit And Rear Auxiliary Input

NOTE:
  • Check that there is no malfunction of AUX equipment main body before performing a diagnosis.
  • Check that the remaining amount of the rear seat remote controller battery is sufficient to perform diagnosis.
Symptoms Check items Probable malfunction location / Action to take
Headrest display unit cannot be powered on for both side. Headrest display unit can be powered on by "Rear display" in "Settings" menu of front display unit. Rear seat remote controller malfunction
  • Headrest display unit can not be powered on by "Rear display" in "Settings" menu of front display unit.
  • Check "Display Location" in diagnosis function of headrest display unit LH.

    Refer to ON BOARD DIAGNOSIS FUNCTION .

 Diagnosis result is normal.
  • AV communication circuits between AV control unit and headrest display unit LH.
  • Video distributor power supply and ground circuits.

    Refer to DIAGNOSIS PROCEDURE .
Diagnosis result is not normal. Location recognition signal circuit between headrest display unit LH and ground.
Refer to DIAGNOSIS PROCEDURE .
Diagnosis function cannot be started. Headrest display unit LH power supply and ground circuits.
Refer to DIAGNOSIS PROCEDURE .
Headrest display unit RH cannot be powered on.
  • Headrest display unit LH is normal.
  • Check "Display Location" in diagnosis function of headrest display unit RH.

    Refer to ON BOARD DIAGNOSIS FUNCTION .

 Diagnosis result is normal. AV communication circuits between headrest display unit LH and headrest display unit RH.
Diagnosis result is not normal. Location recognition signal circuit between headrest display unit RH and ground.
Refer to DIAGNOSIS PROCEDURE .
Diagnosis function cannot be started. Headrest display unit RH power supply and ground circuits.
Refer to DIAGNOSIS PROCEDURE .
DVD, USB and front AUX image cannot be played on headrest display unit of both side.
  • Front display unit is normal.
  • Rear AUX image is normal.
 Composite image signal circuit between AV control unit and video distributor.
Refer to DIAGNOSIS PROCEDURE .
Rear AUX image cannot be played on headrest display unit of both side. DVD, USB and front AUX images are normal. AUX image signal circuit between rear auxiliary input jacks and video distributor.
Refer to DIAGNOSIS PROCEDURE .
DVD, USB, and front AUX image cannot be played only on headrest display unit LH (RH). - Composite image signal circuit between video distributor and headrest display unit LH (RH).
Refer to DIAGNOSIS PROCEDURE .
It does not change to DVD USB and front AUX mode only on headrest display unit LH (RH). Rear AUX image is normal. Image switch signal circuit between headrest display unit LH (RH) and video distributor.
Refer to DIAGNOSIS PROCEDURE .
Menu is not displayed on headrest display LH (RH). - Replace headrest display unit LH (RH).
Refer to EXPLODED VIEW .
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