WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

COMMUNICATION SYSTEM
1. Components in the audio system communicate with each other through the Audio Visual Communication-Local Area Network (AVC-LAN).
  
  Fig 1: Audio System Communication Diagram
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. The receiver has a resistance of 60 to 80 Q, which is necessary for communication.
3. When a short circuit or circuit breakdown occurs in the AVC-LAN circuit, the audio system does not operate normally due to the communication cut off.
DIAGNOSIS FUNCTION
1. The audio system has a diagnosis function. The diagnosis result is displayed on the LCD of the radio receiver.
2. A component code (physical address), or 3 digit code (in hexadecimal), is set for each component of the AVC-LAN.
3. The logical address, or 2 digit code (in hexadecimal), is set for each function and component unit in each component of the AVC-LAN.
COMPACT DISC PLAYER
1. The Compact Disc (CD) player uses a laser beam pickup to read the digital signals recorded on CDs and reproduce analog signals of music, etc. The CD player can play 12 cm (4.7 in.) and 8 cm (3.2 in.) discs.
  NOTE: Never disassemble or apply oil to any part of the player unit.
  Only insert discs into the CD player.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

System Description

Use the Manual With the Right Hardware

When to See a Mechanic

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