Note. Check the vehicle battery condition first (see BATTERY TEST ) Check the connectors for poor connections or loose terminals Discs with labels should not be used in the audio unit They may jam and damage the player mechanism
- Turn on the audio system
- Insert a known-good disc or press the EJECT button Is the DISC indicator (LED) indicated? YES -The audio unit is OK at this time Check for loose or poor connections at the audio unit and the audio panel NO -Substitute a known-good audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck If the symptom/indication goes away, replace the original audio unit