Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

Service check mode. (Radio and player, stereo component tuner) (See PRE-CHECK )
1. NG : Troubleshoot for each diagnosis.
2. OK : Go to next step.
Check radio and player.
PREPARATION:

Disconnect the radio and player connector.

CHECK:

Check the voltage of terminal +B.

OK:

+B: 10 -14 V

CHECK:

Check the voltage of terminal ACC when the ignition switch is in ACC or ON position.

OK:

ACC: 10 - 14 V

CHECK:

Check continuity at terminal GND.

OK:

GND: Continuity
1. NG : Replace or repair wire harness (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
2. OK : Go to next step.
Check "AVC-LAN communication circuit" (See AVC-LAN (COMMUNICATION BUS) CIRCUIT ).
CHECK:
1. Check continuity of the wire harness between the stereo component amplifier and the radio and player.
2. Check continuity of the wire harness between the multi display and the radio and player.
OK:

Continuity
1. NG : Replace or repair AVC-LAN circuit (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
2. OK : Replace multi display (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).