Symptom Troubleshooting

Symptom Troubleshooting: No picture is displayed

No picture is displayed

Diagnostic Test: Self-Diagnosis Mode

NOTE:

- Check the vehicle battery condition first.

- Check if Display Mode [Day/Night] 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 for the navigation system.

- Make sure that the correct DVD color and version are installed.

- Inspect the DVD for dirt or damage.

- Check any official Honda service website for more service information about the navigation system.

1. Check the No. 5 (7.5 A), No. 7 (10 A) fuse and No. 32 (10 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 and recheck.


2. Turn the ignition switch to ACCESSORY (I).

3. Operate the radio, and listen to the audio.

Can you hear the audio?
YES - Go to step 4.

NO - Check the ACC circuit or refer to the audio system troubleshooting.


4. Turn the ignition switch to ON (II).

5. 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 6.

NO - If the +B wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the navigation unit. If the ACC wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the navigation unit.






6. Measure the voltage between navigation unit connector A (8P) terminal No. 4 and body ground.

Is there less than 0.1 V?
YES - Go to step 7.

NO - Repair open or high resistance in the wire between the navigation unit and body ground (G602).






7. Do the forced starting of the display. Navigation System Forced Starting of Display

Is the diagnosis menu of the picture diagnosis displayed?
YES - Go into Self-Diagnosis Mode Navigation System Diagnostic Mode to check the links.

NO - Go to step 8.


8. Shield the 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 - Replace the navigation unit Service and Repair, and retest. If the problem is still present, replace the navigation display unit. Service and Repair

NO - Go to step 9.


9. Turn the ignition switch to ON (II).

10. Measure the voltage between body ground and navigation display unit 20P connector 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 driver's under-dash fuse/relay box and the navigation display unit 20P connector. If the ACC wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the navigation display unit 20P connector.






11. Measure the voltage between the navigation display unit 20P connector terminal No. 10 and body ground.

Is there less than 0.1 V?
YES - Replace the navigation display unit.

NO - Repair open or poor connections between the navigation display unit and body ground (G501).