Audio-Navigation Switch Panel Button Illumination Does Not Work (With Navigation)

Audio System Symptom Troubleshooting - Audio-navigation switch panel button illumination does not work

Audio-navigation switch panel button illumination does not work (with navigation)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

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

3. Check the illumination of the audio-navigation switch panel buttons.

Are the buttons illuminated?

YES -

Intermittent failure, the system is OK at this time. Check for loose or poor connections at the audio-navigation switch panel 24P connector.

NO -

Go to step 4.

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

Are the buttons illuminated?

YES -

Go to step 6.

NO -

Troubleshoot the interior lights. Start by checking the No. 6 (7.5 A) fuse in the passenger's under-dash fuse/relay box. If the fuse is OK, check for an open in the wire between passenger's under-dash fuse/relay box and the audio-navigation switch panel.

5. Turn the combination lighting switch to the off position.

6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

7. Disconnect the audio-navigation switch panel 24P connector.

8. Disconnect the gauge control module 32P connector.

9. Check for continuity between audio-navigation switch panel 24P connector terminals No. 11 and No. 12 and gauge control module 32P connector terminals No. 21 and No. 20 respectively.





Is there continuity?

YES -

Go to step 10.

NO -

Repair an open in the wire between the audio-navigation switch panel and the gauge control module.

10. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

11. With the combination lighting switch to the parking light position, measure the voltage between audio-navigation switch panel 24P connector terminal No. 23 and body ground.





Is there battery voltage?

YES -

Substitute a known-good audio-navigation switch panel Audio-Navigation Switch Panel Removal/Installation, and recheck. If the symptom/indicated goes away, replace the original audio-navigation switch panel Audio-Navigation Switch Panel Removal/Installation.

NO -

Repair an open in the wire between the passenger's under-dash fuse/relay box and the audio-navigation switch panel.