DTC Check/Clear

HINT:

If the system cannot enter the diagnostic mode, inspect all AVC-LAN communication signals and repair or replace problem parts (See AVC-LAN CIRCUIT  ).

1. STARTING DIAGNOSTIC MODE 
   1. Turn the ignition switch to the ACC position.
   2. Turn off the audio system.
   3. While pressing the preset switches "1" and "6" at the same time, press the "DISC" switch 3 times.

   HINT:

   A deep is emitted 3 times and the diagnostic function is activated. The system enters the all element illumination mode and the switch check mode.

   Fig 1: Locating Preset Switches 1, 6 & DISC Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. ALL ELEMENT ILLUMINATION MODE AND SWITCH CHECK MODE 

   HINT:

   Illumination status of all switches and operations of the panel switches can be checked.

   1. Check that all elements are on.
   2. When pressing each panel switch, check that a deep is emitted.
      NOTE: Pressing the "SEEK TRACK UP" switch transfers the screen to the stereo jack adapter connection check screen. Check the operation of this switch by confirming the transfer of the screen.