No Picture Is Displayed
No picture is displayedDiagnostic Test: Navi System Link
NOTE:
- Check the vehicle battery condition first.
- Make sure that the correct DVD color and version are installed.
- Check any official Honda service website for more service information about the navigation system.
- For problems with the rearview camera, do the rearview camera does not come on or work properly troubleshooting.
- Check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have the navigation system anti-theft code.
1. Check the No. 7 (7.5 A) fuse and No. 32 (7.5 A) fuse in the 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 ON (II).
3. Turn on the audio unit and check for sound in each mode (AM, FM, XM, and CD).
Can you operate the audio?
YES - Go to step 4.
NO - Go to the audio system troubleshooting. Audio System
4. Turn the ignition switch to LOCK (0).
5. Remove the navigation unit.
6. Turn the ignition switch to ON (II).
7. Measure the voltage between body ground and navigation unit connector C (8P) terminals No. 1 and No. 2 individually.
Is there battery voltage?
YES - Go to step 8.
NO - If the +B wire does not have voltage, repair open in the wire between the under-dash fuse/relay box and the navigation unit. If the ACC wire does not have voltage, repair open in the wire between the under-dash fuse/relay box and the navigation unit.
8. Measure the voltage between navigation unit connector C (8P) terminal No. 4 and body ground.
Is there less than 0.1 V?
YES - Go to step 9.
NO - Repair open in the wire between the navigation unit and body ground (G604).
9. Turn the ignition switch to LOCK (0).
10. Reinstall the navigation unit.
11. Do the forced starting of the display.
Is the diagnosis menu of the picture diagnosis displayed?
YES - Go into the Diagnostic mode and use the "Navi System Link" diagnostic to check the links.
NO - Go to step 12.
12. Turn the ignition switch to ON (II).
13. Shield the display panel 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 and retest. If the problem is still present, replace the display panel control unit.
NO - Go to step 14.
14. Turn the ignition switch to LOCK (0).
15. Remove the audio-HVAC display module assembly.
NOTE: Eject all the discs before removing the audio unit to prevent damaging the CD/DVD player's load mechanism.
16. Turn the ignition switch to ON (II).
17. Measure the voltage between body ground and display panel control unit connector A (22P) terminal No. 9 and No. 10 individually.
Is there battery voltage?
YES - Go to step 18.
NO - If the +B wire does not have voltage, repair open in the wire between the under-dash fuse/relay box and the display panel control unit connector A (22P). If the ACC wire does not have voltage, repair open in the wire between the under-dash fuse/relay box and the display panel control unit connector A (22P).
18. Measure the voltage between display panel control unit connector A (22P) terminal No. 5 and body ground.
Is there less than 0.1 V?
YES - Substitute a known-good display panel control unit, then reconnect all connector and recheck. If the symptom/indication goes away, replace the original display panel control unit. If symptom/indication is still present, replace the navigation unit.
NO - Repair open or high resistance in the BLK wire between display panel control unit connector A (22P) and body ground (G501).