		TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the USB device with the pre-loaded maps is connected to the USB port on the vehicle	Move on to Step 1	Connection to USB port defective	Restore the correct connection
1	CHECK USING THE EXAMINER	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Using the Examiner in the CAN information mode, check the list of faulty control units	Move on to Step 2	Control unit error	Continue as instructed by the diagnostic equipment
2	NAV BUTTON CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the NAV button in the control panel is working properly See Test 5570TS BLUE & ME NAV CONTROL PANEL OPERATION CHECK Check the continuity of the connection between the control panel and the Bluetooth node See E4090 NAVIGATOR	Move on to Step 3	1. NAV button defective 2. Wiring interrupted/short circuited	1. Replace the control panel Op. 5580M20 ON BOARD NAVIGATION SYSTEM CONTROLS - R.R. 2. Restore the correct wiring.
3	CORRECT OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the Bluetooth node is working properly	End of diagnosis	Bluetooth node defective	Replace the Bluetooth control unit Op. 5570T49 BLUETOOTH ELECTRONIC CONTROL UNIT - R.R.

The navigator is not working. When the NAV button is pressed, the navigation mode is not launched