Symptom Troubleshooting

Navigation System Symptom Troubleshooting - No picture is displayed

No picture is displayed

NOTE:

- Check the vehicle battery condition first.
- Check if button has been pressed, and turned off the display (see owner's manual for more information).
- Check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have the anti-theft code.
- After troubleshooting, enter the anti-theft code.
- Make sure that the latest navigation software is installed.
- Check any official Honda service website for more service information about the navigation system.

1. Check the No. 15 (10 A) fuse in the under-hood fuse/relay box and No. 18 (7.5 A) fuse in the driver's under-dash fuse/relay box, and reinstall the fuses if they are OK.

Are the fuses OK?

YES -

Go to step 2.

NO -

Replace the fuse(s), and recheck.�

2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

3. Do the Forced Starting of the Audio-Navigation Unit Navigation System Forced Starting of the Audio-Navigation Unit.

Is the diagnosis menu of the picture diagnosis displayed?

YES -

Go to step 9.

NO -

Go to step 4.

4. Shield the display unit from the sun with your hand, and check that the display is back lit (only the back light is ON.)

Can you see the back light?

YES -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation (With Navigation), and recheck. If the problem goes away, replace the original audio-navigation unit. If the problem is still present, replace the navigation display unit Service and Repair.�

NO -

Go to step 5.

5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

6. Connect the HDS to the DLC.

7. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

8. Check for DTCs with the HDS.

Are there any DTCs present?

YES -

Troubleshoot the DTC, then recheck.�

NO -

Go to step 10.

9. Check the most recent DTC.

Are there recent hard codes set?

YES -

Troubleshoot any recent DTC(s) and recheck. If there are no recent DTCs, substitute a known-good audio-navigation display unit Service and Repair. If the symptom goes away, replace the original audio-navigation display unit. If the symptom still does not go away, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

NO -

Go to step 10.

10. Measure the voltage between body ground and audio-navigation unit connector A (24P) terminals No. 14 and No. 24 individually.





Is there battery voltage?

YES -

Go to step 11.

NO -

If the +B wire does not have voltage, repair an open in the wire between the under-hood fuse/relay box and the audio-navigation unit. If the ACC wire does not have voltage, repair an open in the wire between the driver's under-dash fuse/relay box and the audio-navigation unit.�

11. Measure the voltage between audio-navigation unit connector A (24P) terminal No. 12 and body ground.





Is there less than 0.2 V?

YES -

Go to step 12.

NO -

Repair an open or high resistance in the wire between the audio-navigation unit and body ground (G502).�

12. Measure the voltage between body ground and navigation display unit 32P connector terminals No. 1 and No. 2 individually.





Is there battery voltage?

YES -

Go to step 13.

NO -

If the +B wire does not have voltage, repair an open in the wire between the under-hood fuse/relay box and the navigation display unit 32P connector. If the ACC wire does not have voltage, repair an open in the wire between the driver's under-dash fuse/relay box and the navigation display unit 32P connector.�

13. Measure the voltage between navigation display unit 32P connector terminal No. 17 and body ground.





Is there less than 0.2 V?

YES -

Substitute a known-good navigation display unit Service and Repair, and recheck. If the symptom/indication goes away, replace the original navigation display unit. If the symptom/indication is still present, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

NO -

Repair an open or high resistance in the wire between the navigation display unit and body ground (G501).�