SYSTEM DIAGRAM 
 w/ Manual (SOS) Switch
 w/o Manual (SOS) Switch
 for 8 Speakers
 for 14 Speakers
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Audio And Visual System(for Hv Model): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the audio and visual system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS When troubleshooting, check that the problem symptoms have been accurately identified. Preconceptio ...
