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Home >> Honda >> 2009 >> CR-V 2WD L4-2.4L >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Navigation Unit Button Illumination Does Not Work (With Navigation)
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Navigation Unit Button Illumination Does Not Work (With Navigation)




Symptom Troubleshooting: Navigation unit button illumination does not work

Navigation unit button illumination does not work (with navigation)

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

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

2. Turn the combination lighting switch to the parking light position.

3. Check the illumination of the navigation unit buttons.

Are the buttons illuminated?
YES - Intermittent problem: The navigation unit is OK at this time. Check for loose or poor connections at the navigation unit connector A (17P).

NO - Go to step 4.


4. Check the illumination of several other buttons not related to the navigation system.

Are the buttons illuminated?
YES - Go to step 5.

NO - Troubleshoot the dashboard illumination circuit. Check the No. 14 (7.5 A) fuse in the under-dash fuse/relay box.


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

6. Disconnect navigation unit connector A (17P).
NOTE: Eject all the CDs before removing the navigation unit to prevent damaging the CD.

7. Disconnect the gauge control module 36P connector.

8. Check for continuity between navigation unit connector A (17P) terminal No. 1 and gauge control module 36P connector terminal No. 1.

Is there continuity?
YES - Go to step 9.

NO - Repair open in the wire between the gauge control module and the navigation unit.






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

10. With the headlight switch still on, measure the voltage between navigation unit connector A (17P) terminal No. 10 and body ground.

Is there battery voltage?
YES - Check the connections at navigation unit connector A (17P). If all the connections are OK, replace the navigation unit. Service and Repair

NO - Check the No. 14 (7.5 A) fuse in the under-dash fuse/relay box. If the fuse is OK, repair open in the wire between the under-dash fuse/relay box and the navigation unit.






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