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Home >> Volvo >> 2004 >> V40 Base >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Media, Communication And Navigation - Design And Function >> Diagnostic Functions Audio HU1205 (Audio Module) (2001-2004) >> Diagnostic Functions Audio HU1205 (Audio Module) >> 1. Display

1. Display

Fig 1: Identifying Diagnosis Menu
GLL115711Courtesy of VOLVO CARS OF NORTH AMERICA.

The following is available from the Display menu: 

1.1 Color bar 

Fig 2: Identifying Color Bar
GLL117851Courtesy of VOLVO CARS OF NORTH AMERICA.

Color bars are displayed vertically through the entire display. Press <ENT  > to activate the function. Press < RTN  > to return to the diagnostic menu. The colors shown should be white, yellow, turquoise, violet, red, blue and black. There is a fault in the audio unit if any color is different.

1.2 Hatching 

Fig 3: Identifying Hatching On Display
GLL115712Courtesy of VOLVO CARS OF NORTH AMERICA.

Hatching is shown through the entire display. Press < ENT  > to activate the function. Press <RTN  > to return to the diagnostic menu. The lines must be straight, sharp and centered. There is a fault in the audio unit if the lines are not straight, sharp or centered.

1.3 Grey scale 

Fig 4: Identifying Grey Scale On Display
GLL115713Courtesy of VOLVO CARS OF NORTH AMERICA.

Grey scale bars are displayed vertically through the entire display. Press <ENT  > to activate the function. Press < RTN  > to return to the diagnostic menu.

The range of the gray scale bars should be from white, through light gray and dark gray, and finally to black. There is a fault in the audio unit if the gray scale bars are not correct.

1.4 Button of remo-con 

Fig 5: Identifying Remo-Con Menu
GLL115714Courtesy of VOLVO CARS OF NORTH AMERICA.

The status of the navigator, ENT and RTN buttons on the audio unit front panel as well as the (optional) remote control buttons can be checked from here. Press <ENT  > to activate the function.

"OFF" is displayed until the actual button is pressed in. The status then changes to "ON". The status returns to "OFF" when the button is released. If the status does not return to "OFF", the button is catching, has stuck in or there is another fault in the audio unit or remote control (optional).

Press <RTN  > twice to return to the diagnostic menu.

1.5 Color screen 

Fig 6: Identifying Color Screen
GLL115715Courtesy of VOLVO CARS OF NORTH AMERICA.

Will display one color at a time in the display. The order the colors are displayed in is black, red, green and blue. Press < ENT  > to activate the function and to change the color.

Press <RTN  > to return to the diagnostic menu. There is a fault in the audio unit if the colors are not clear or as listed above.