Navigation System Symptom Troubleshooting - No picture is displayed
No picture is displayed
NOTE:
Check the vehicle battery condition first.
Check if the Day/Night (enu_1740914_1.0) button has been pressed, and turned off the display (see the Navigation Manual for more information).
If the audio-navigation unit displays an error message when you turn on the navigation system, follow the instructions.
Check the connectors for poor connections or loose terminals.
1.
Problem verification 1:

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

?2.
Check if the multi-information display unit displays the Honda globe screen.

Is the Honda globe screen displayed?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
The failure is duplicated, go to step 2.
2.
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

Are the fuses OK?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Replace the fuse(s), and recheck. If the fuse(s) blows again, check for a short in the No. A22 (10 A) fuse and/or the B37 (7.5 A) fuse circuits.?
3.
Determine possible failure area (audio system, others):

Determine possible failure area (audio system, others)
?1.
Check if audio information appears on the audio unit with touch screen.

Is the audio information displayed?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
4.
Determine possible failure area (+B AUDIO and/or ACC line, others):

Determine possible failure area (+B AUDIO and/or ACC line, others)
?1.
Check the backlight of multi-information display unit.

Does the backlight of multi-information display unit turn on?

     
YES
     
     
     
Go to step 7.
     
NO
     
     
     
Go to step 5.
5.
Open wire check (+B AUDIO line, ACC line):

Open wire check (+B AUDIO line, ACC line)
?1.
Measure the voltage between test points 1 and 2.
Test condition
ON mode
Test circuit
+B AUDIO
Test point 1
Multi-information display unit connector A (12P) No. 6 (LT BLU)
Test point 2
Body ground

Test circuit
ACC
Test point 1
Multi-information display unit connector A (12P) No. 5 (PUR)
Test point 2
Body ground


Is there battery voltage?

     
YES
     
     
     
The +B AUDIO and the ACC wire is OK. Go to step 6.
     
NO
     
     
     
Repair an open in the wire between the No. A22 (10 A) and/or the No. B37 (7.5A) fuse in the under-hood fuse/relay box and the multi-information display unit.?
6.
Open wire check (GND line):

Open wire check (GND line)
?1.
Measure the voltage between test points 1 and 2.
Test condition
ON mode
Test circuit
GND
Test point 1
Multi-information display unit connector A (12P) No. 12 (BLK)
Test point 2
Body ground


Is there less than 0.2 V?

     
YES
     
     
     
     
NO
     
     
     
Repair an open or high resistance in the wire between the multi-information display unit and body ground (G505).?
7.
Determine possible failure area (audio system, others):

Determine possible failure area (audio system, others)
?1.
Check that the audio system is operating normally, from different audio sources (AM/FM and CD).

Does the audio system work normally?

     
YES
     
     
     
Go to step 8.
     
NO
     
     
     
8.
Shorted wire check (SH SH GVIF line to another lines):

Shorted wire check (SH SH GVIF line to another lines)
?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
 
Multi-information display unit connector B (3P): disconnected
 
Audio-navigation unit connector H (3P): disconnected
Test circuit
SH GVIF, GVIF+
Test point 1
Multi-information display unit connector B (3P) No. 3
Test point 2
Multi-information display unit connector B (3P) No. 2

Test circuit
SH GVIF, GVIF?
Test point 1
Multi-information display unit connector B (3P) No. 3
Test point 2
Multi-information display unit connector B (3P) No. 1


Is there continuity?

     
YES
     
     
     
There is a short in the wires between the audio-navigation unit and the multi-information display unit. Replace the affected shielded harness.?
     
NO
     
     
     
The SH GVIF wire is OK. Go to step 9.
9.
Open wire check (GVIF+ line, GVIF? line):

Open wire check (GVIF+ line, GVIF? line)
Test condition
OFF mode
 
Multi-information display unit connector B (3P): disconnected
 
Audio-navigation unit connector H (3P): disconnected

Test circuit
Test point 1:
Multi-information display unit connector B (3P)
Test point 2:
Audio-navigation unit connector H (3P)
GVIF+
No. 2
No. 2
GVIF?
No. 1
No. 1



Is there continuity?

     
YES
     
     
     
The GVIF+ and the GVIF? wires are OK. Go to step 10.
     
NO
     
     
     
There is an open in the wire(s) between the audio-navigation unit and the multi-information display unit. Replace affected shielded harness.?
10.
Multi-information display unit check (substitution):

Multi-information display unit check (substitution)
?1.
Substitute a known-good multi-information display unit.

?2.
Reconnect all the connectors, and recheck.

Does the symptom go away?

     
YES
     
     
     
Replace the original multi-information display unit.?
     
NO