Switching To Connection Inspection Mode

1. Press the menu key.
2. Select the navigation setup from the menu screen.
3. Select the navigation information from the navigation setup screen.
4. Select the vehicle signal from the navigation information screen.
5. The display will switch to the vehicle signal (for connection inspection) screen.
6. Check that the display changes according to each operation

ON: Normal

NG: Check the circuit when the display does not change.