Symptom Troubleshooting

Navigation System Symptom Troubleshooting - No picture is displayed

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Diagnostic Test: Self-Diagnosis Mode

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check if the Day/Night button has been pressed, and turned off the display (see the Navigation Manual for more information).
- Check any official Honda service website for more service information about the navigation system.
- Check the connectors for poor connections or loose terminals.

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

2. Check if the navigation display indicates any error message.

Is an error message displayed?

YES -

Refer to the Error Messages.

NO -

The failure is duplicated, go to step 3.

3. Turn the ignition switch to LOCK (0).

4. Check the No. 1 (10 A) and the No. 14 (7.5 A) fuses in the under-dash fuse/relay box, and the No. 1 (30 A) fuse in the auxiliary under-dash fuse box.

Are the fuses OK?

YES -

Refer to the Error Messages.

NO -

Replace the fuse(s), and recheck. If the fuse(s) blows again, check for a short in the No. 1 (10 A) and/or the No. 14 (7.5 A) fuses in the under-dash fuse/relay box, and/or the No. 1 (30 A) fuse in the auxiliary under-dash fuse box circuits.

5. Measure the voltage between audio-navigation unit connector A (24P) terminal No. 24 and body ground, and audio-navigation unit connector D (20P) terminal No. 1 and body ground.









Is there battery voltage?

YES -

Go to step 6.

NO -

Repair an open in the wire(s) between the No. 1 (10 A) fuse in the under-dash fuse/relay box and the audio-navigation unit.

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

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





Is there battery voltage?

YES -

Go to step 8.

NO -

Repair an open in the wire(s) between the No. 14 (7.5 A) fuse in the under-dash fuse/relay box and the audio-navigation unit.

8. Check the No. 1 (10 A) and the No. 14 (7.5 A) fuses in the under-dash fuse/relay box, and the No. 1 (30 A) fuse in the auxiliary under-dash fuse box.

Are the fuses OK?

YES -

Refer to the Error Messages.

NO -

Replace the fuse(s), and recheck. If the fuse(s) blows again, check for a short in the No. 1 (10 A) and/or the No. 14 (7.5 A) fuses in the under-dash fuse/relay box, and/or the No. 1 (30 A) fuse in the auxiliary under-dash fuse box circuits.

9. Measure the voltage between audio-navigation unit connector A (24P) terminals No. 12 and body ground, and audio-navigation unit connector D (20P) terminal No. 11 and body ground.









Is there less than 0.2 V?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).

NO -

Repair an open or high resistance in the wire between the audio-navigation unit and body ground (G503).