LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 2245 (Audio, Visual, Navigation System (BOSE Audio Without Navigation)) >> System Description >> Diagnosis System (Av Control Unit) >> Av Control Unit >> AV CONTROL UNIT: Diagnosis Description >> Self-Diagnosis
April 5, 2026: LEMON Manuals is launched! Read the announcement.

AV CONTROL UNIT: Diagnosis Description: Self-Diagnosis

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform self-diagnosis by selecting "Self-Diagnosis".
    • Self-diagnosis subdivision screen is displayed, and the self-diagnosis mode starts.
    • A bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trouble diagnosis.
    NOTE: Self-diagnosis requires approximately 10 seconds to complete.
    Fig 1: Display - Running Self-Diagnosis
    G08169550Courtesy of NISSAN NORTH AMERICA, INC.
  2. Diagnosis results are displayed after the self-diagnosis is completed. The unit names and the connection lines are color-coded according to the diagnostic results.

    Diagnosis results Unit Connection line 

    Normal Green Green 

    Connection malfunction Gray Yellow 

    Unit malfunction Note Red Green 

    Fig 2: Display - Color-Coded Unit Names And Connection Lines
    G08169551Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE:
    • Only the AV control unit is displayed in red.
    • If multiple malfunctions occur at the same time for a single unit, the screen switch colors are determined according to the following order of priority: red > yellow > gray.
  3. Select a component on the "Self-Diagnosis" screen and comments for the diagnosis results will be shown.
Fig 3: Display - Error Information Screen
G08169552Courtesy of NISSAN NORTH AMERICA, INC.

Self-Diagnosis Results

Area with yellow connection lines Description Possible malfunction location/Action to take
G08169553
AV control unit malfunction is detected Replace the AV control unit. Refer to "REMOVAL AND INSTALLATION ".
G08169554
Poor connection is detected for the display unit
  • Harness or connector
  • AV control unit
  • Display unit
G08169555
Switch malfunction is detected Perform A/C and AV switch assembly diagnostics. Refer to "A/C AND AV SWITCH ASSEMBLY: COMPONENT FUNCTION CHECK ".
G08169556
Poor connection is detected for the DVD player.
  • Harness or connector
  • AV control unit
  • DVD player
G08169557
Poor connection is detected for the Bluetooth control unit
  • Harness or connector
  • AV control unit
  • Bluetooth control unit
G08169558
Poor connection is detected for the satellite radio tuner.
  • Harness or connector
  • AV control unit
  • Satellite radio tuner