Check UART Communication

NOTE: When checking the GPS antenna, perform the check operation outdoors to improve the receiver sensitivity.

Touch {Vehicle Signal Info.} on the << Dealer Diag Menu >> screen.
Check that "ON" is displayed in the UART signal item.
OK: Normal.

NG: Abnormal. Check the signal line connection. If there are no problems, the unit could be faulty.

NOTE: If the UART signal line connector is not connected, the marker line is not displayed when the rearview camera image is displayed.