Symptom Troubleshooting
Navigation System Symptom Troubleshooting - No picture is displayed
No picture is displayed
Diagnostic Test: Self-Diagnosis Mode
NOTE:
- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Check if button has been pressed, and turned off the display (see Navigation Manual for more information).
- Make sure that the correct navigation DVD color and version are installed.
- Inspect the navigation DVD for dirt or damage.
- Check any official Honda service website for more service information about the navigation system.
- For problems with the rearview camera, do the rearview camera image does not come on or work properly troubleshooting Symptom Troubleshooting.
- Before troubleshooting, make sure you have the anti-theft code for the audio unit and the navigation system.
- After troubleshooting, enter the anti-theft code for the audio system and the navigation system.
1. Check the No. 23 (10 A) fuse in the under-hood fuse/relay box and the No. 35 (7.5 A) fuse in the under-dash fuse/relay box.
Are the fuses OK?
YES -
Reinstall the fuses, then go to step 2.
NO -
Replace the fuse(s), and recheck.
2. Turn the ignition switch to ON (II).
3. Do the Forced Starting of the Navigation Unit Forced Starting of the Navigation Unit.
Is the diagnosis menu of the picture diagnosis displayed?
YES -
Go to step 13.
NO -
Go to step 4.
4. Shield the navigation display unit from the sun with your hand, and check that the display is back lit (only back light is ON.)
Can you see the back light?
YES -
Substitute a known-good navigation unit Service and Repair and recheck. If the symptom/indication goes away, replace the original navigation unit. If the symptom/indication is still present, replace the navigation display unit Service and Repair.
NO -
Go to step 5.
5. Turn the ignition switch to LOCK (0).
6. Connect the HDS to the DLC.
7. Turn the ignition switch to ON (II).
8. Check for DTCs with the HDS.
Are there any DTCs present?
YES -
Troubleshooting the DTC, then recheck.
NO -
Go to step 9.
9. Turn the ignition switch to ON (II).
10. Measure the voltage between body ground and navigation unit connector A (8P) terminals No. 1 and No. 2 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 navigation unit. If the ACC wire does not have voltage, repair an open in the wire between the under-dash fuse/relay box and the navigation unit.
11. Measure the voltage between navigation unit connector A (8P) terminal No. 4 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 navigation unit and body ground (G503) .
12. Measure the voltage between body ground and navigation display unit 28P 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 28P connector. If the ACC wire does not have voltage, repair an open in the wire between the under-dash fuse/relay box and the navigation display unit 28P connector.
13. Measure the voltage between navigation display unit 28P connector terminal No. 10 and body ground.
Is there less than 0.2 V?
YES -
Substitute a known-good navigation unit Service and Repair, and recheck. If the symptom/indication goes away, replace the original navigation unit Service and Repair. If the symptom/indication is still present, replace the navigation display unit Service and Repair.
NO -
Repair an open or high resistance in the wire between the navigation display unit and body ground (G502).