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 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. 1 (10 A) and the No. 14 (7.5 A) fuses in the under-dash fuse/relay box the 30 A fuse (auxiliary under-dash fuse box) on the wire harness rear the under-dash fuse/relay box. 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 audio-navigation unit connector A (24P) terminals No. 14 and No. 24 individually.





Is there battery voltage?

YES -

Go to step 6.

NO -

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

6. Measure the voltage between audio-navigation unit connector C (8P) terminal No. 1 and body ground.





Is there battery voltage?

YES -

Go to step 7.

NO -

There is an open or high resistance in the wire between the navigation unit and body ground (G503).�

7. Measure the voltage between audio-navigation unit connector A (24P) terminals No. 12 and body ground, between audio-navigation unit connector B (24P) terminal No. 17 and body ground, and between audio-navigation unit connector C (8P) terminal No. 4 and body ground.













Is there less than 0.2 V on all terminals?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.�

NO -

There is an open or high resistance in the wire between audio-navigation unit connector A (24P) terminal No. 12 or audio-navigation unit connector B (24P) terminal No. 17 and body ground (G503 and G502), or audio-navigation unit connector C (8P) and body ground (G503).�