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Audio unit button illumination does not work Acura TL III рестайлинг

Audio System 2 illustrations ~299 words

Audio unit button illumination does not work

Note. Check the vehicle battery condition first. Check the connectors for poor connections or loose terminals.

Scheme 67

Scheme 67: Audio unit button illumination does not work
Scheme 67: Audio unit button illumination does not work

Scheme 68

Scheme 68
Scheme 68
  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 audio unit buttons. Are the buttons illuminated? YES -Intermittent failure; the audio unit is OK at this time. Check for loose or poor connections at audio unit connector A (20P). 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 5. NO -Troubleshoot the interior lights.
  5. Turn the ignition switch to Lock (0).
  6. Remove the audio-HVAC display module assembly (see «AUDIO-HVAC DISPLAY MODULE ASSEMBLY REMOVAL/INSTALLATION»(/acura/tl/iii-2006-2008/remont/entertainment-systems/#display-panel-control-system__audio-hvac-display-module-assembly-removalinstallation) ), and disconnect audio unit connector A (20P). NOTE: Eject all the discs before removing the audio unit to prevent damaging the CD/DVD player's load mechanism.
  7. Disconnect gauge control module connector B (18P) (see «REWRITING THE ODO DATA ON A NEW GAUGE CONTROL MODULE»(/acura/tl/iii-2006-2008/remont/gauges-instrument-panels/#display-and-gauge-system__rewriting-the-odo-data-on-a) ).
  8. Check for continuity between audio unit connector A (20P) terminal No. 19 and gauge control module connector B (18P) terminal No. 9. Is there continuity? YES -Go to step 9. NO -Repair open in the wire between the gauge control module and the audio unit.
  9. Turn the ignition switch to ON (II).
  10. With the headlight switch still on, measure the voltage between audio unit connector A (20P) terminal No. 9 and body ground. Is there battery voltage? YES -Check the connections at the audio unit connector A (20P). If all connections are OK, replace the audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iii-2006-2008/remont/entertainment-systems/#audio-system__audio-unit-removalinstallation) ). NO -Repair open in the wire between the relay control module and the audio unit.