Audio System Symptom Troubleshooting - Audio system information does not display on the audio with touch screen
Audio system information does not display on the audio with touch screen
NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose terminals.
1.
Problem verification:

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

?2.
Check if audio information appears on the audio with touch screen.

Is the audio information displayed?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
The failure is duplicated, go to step 2.
2.
Determine possible failure area (Audio panel, others):

Determine possible failure area (Audio panel, others)
?1.
Check if any MID information appears on the multi-information display.

Is there any information displayed?

     
YES
     
     
     
     
NO
     
     
     
Go to step 3.
3.
Fuse check:

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

?2.
Check the following fuses.
Fuse
No. A22 (10 A)
Location
Under-hood fuse/relay box

Fuse
No. B37 (7.5 A)
Location
Under-dash fuse/relay box

Fuse
No. C-4 (7.5 A)
Location
Under-dash sub fuse box

Are the fuses OK?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Replace the fuse(s), and recheck. If the fuse(s) blows again, check for a short in the No. A22 (10 A) fuse, No. B37 (7.5 A) fuse and/or the C-4 (7.5 A) fuse circuits.?
4.
Open wire check (+B AUDIO line):

Open wire check (+B AUDIO line)
?1.
Press the engine start/stop button to select the ON mode.

?2.
Measure the voltage between test points 1 and 2.
Test condition
ON mode
Test circuit
+B AUDIO
Test point 1
Audio-navigation unit connector A (24P) No. 3 (LT BLU)
Test point 2
Body ground


Are there battery voltage?

     
YES
     
     
     
The +B AUDIO wires is OK. Go to step 5.
     
NO
     
     
     
Repair an open in the wire(s) between the No. A22 (10 A) fuse in the under-hood fuse/relay box and the audio-navigation unit.?
5.
Open wire check (+B AUDIO (ODMD) line):

Open wire check (+B AUDIO (ODMD) line)
?1.
Measure the voltage between test points 1 and 2.
Test condition
ON mode
Test circuit
+B AUDIO (ODMD)
Test point 1
Audio-navigation unit connector F (18P) No. 3 (BLU)
Test point 2
Body ground


Are there battery voltage?

     
YES
     
     
     
The +B AUDIO (ODMD) is OK. Go to step 6.
     
NO
     
     
     
Repair an open in the wire(s) between the No. C-4 (7.5 A) fuse in the under-dash sub fuse box and the audio-navigation unit.?
6.
Open wire check (ACC line):

Open wire check (ACC line)
?1.
Measure the voltage between test points 1 and 2.
Test condition
ON mode
Test circuit
ACC
Test point 1
Audio-navigation unit connector A (24P) No. 24 (PUR)
Test point 2
Body ground


Is there battery voltage?

     
YES
     
     
     
The ACC wire is OK. Go to step 7.
     
NO
     
     
     
Repair an open in the wire between the No. B37 (7.5 A) fuse in the under-dash fuse/relay box and the audio-navigation unit.?
7.
Open wire check (GND lines):

Open wire check (GND lines)
?1.
Measure the voltage between test points 1 and 2.
Test condition
ON mode
Test circuit
GND
Test point 1
Audio-navigation unit connector A (24P) No. 1 (BLK)
Test point 2
Body ground

Test circuit
GND
Test point 1
Audio-navigation unit connector F (18P) No. 1 (BRN)
Test point 2
Body ground



Is there less than 0.2 V?

     
YES
     
     
     
     
NO
     
     
     
Repair an open in the wire(s) between the audio-navigation unit and body ground (G505) and/or (G506).?