Audio System Symptom Troubleshooting - Audio-navigation unit does not exit anti-theft mode

Audio-navigation unit does not exit anti-theft mode

NOTE:

	Check the vehicle battery condition first.
	Check for F-CAN and B-CAN DTCs and resolve them before troubleshooting.
	Check the connectors for poor connections or loose terminals.

Problem verification:

Problem verification

?1.	Press the engine start/stop button to select the ON mode.

?2.	Press and hold the POWER button more than 2 seconds to release the anti-theft mode.

Is the anti-theft mode released?

Intermittent failure, the system is OK at this time.?

The failure is duplicated, go to step 2.

Determine possible failure area (B CAN-L, B CAN-H):

Determine possible failure area (B CAN-L, B CAN-H)

?1.

Measure the voltage between test points 1 and 2.

Test condition	ON mode
Test circuit	B CAN-L
Test point 1	Audio-navigation connector A (24P) No. 2
Test point 2	Body ground

Test condition	ON mode
Test circuit	B CAN-H
Test point 1	Audio-navigation unit connector A (24P) No. 4
Test point 2	Body ground

Is there about 2.5 V?

Replace the audio-navigation unit.?

Go to step 3.

Open wire check (B CAN-H line, B CAN-L line):

Open wire check (B CAN-H line, B CAN-L line)

?1.	Press the engine start/stop button to select the OFF mode.

?2.

Disconnect the following connectors.

?3.

Check for continuity between test points 1 and 2.

Test condition	OFF mode
	Audio-navigation unit connector A (24P): disconnected
	Gauge control module connector A (32P): disconnected
Test circuit	B CAN-H
Test point 1	Audio-navigation unit connector A (24P) No. 4 (PNK)
Test point 2	Gauge control module connector A (32P) No. 30 (PNK)

Test circuit	B CAN-L
Test point 1	Audio-navigation unit connector A (24P) No. 2 (BLU)
Test point 2	Gauge control module connector A (32P) No. 31 (BLU)

Is there continuity?

Repair an open in the wire(s) between the audio-navigation unit and the gauge control module.?