Fault diagnosis, fault symptoms
📄 Calculated arrival time unrealistic
📄 The display is completely black
📄 The vehicle marker on the map does not follow the position of the car/No GPS reception
📄 No image on the display screen
📄 No image on the display screen in navigation mode
📄 No or poor sound in all functions
📄 No or poor sound when using the CD changer
📄 No or poor sound when using navigation
📄 No or poor sound when using the radio
📄 Steering wheel controls do not work