Audio Unit Button Does Not Work

Symptom Troubleshooting: Audio unit button does not work

Audio unit button does not work

NOTE:

- Check the vehicle battery condition first. Testing and Inspection

- Check the connectors for poor connections or loose terminals.

- In order to troubleshoot the main power switch, go to audio unit power switch will not turn on. Audio Unit Power Switch Will Not Turn on (No Information Display and No Sound)

1. Operate all items in the appropriate switch list.

Switch list









Do all the items in the appropriate switch list work properly?
YES - Operation is normal.

NO -
- With ELS audio system: Substitute a known-good audio unit. Audio Unit Removal/Installation (With ELS Audio System) If the symptom/indication goes away, replace the original audio unit. If the symptom still present, substitute a known-good audio-navigation switch panel, Audio-Navigation Switch Panel Removal/Installation and recheck. If the symptom/indication goes away, replace the original audio-navigation switch panel.

- With premium audio system: Substitute a known-good audio unit. Audio Unit Removal/Installation (With Premium Audio System) If the symptom/indication goes away, replace the original audio unit.