文档介绍：ELECTRICAL A B SECTION AV AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- C TEM D CONTENTS E SERVICE INFORMATION ............................ 4 Trouble Diagnosis ....................................................49 F Noise Inspection ......................................................52 PRECAUTIONS ................................................... 4 Power Supply Circuit Inspection ..............................53 Precaution for Supplemental Restraint System Satellite Radio Tuner (Factory Installed) Power G (SRS) "AIR BAG" and "SEAT BELT PRE-TEN- and Ground Supply Circuit Inspection .....................54 SIONER" ...................................................................4 Satellite Radio Tuner (Factory Installed) Commu- nication Circuit Inspection ........................................55 H PREPARATION ................................................... 5 Satellite Radio Tuner (Factory Installed) Left Commercial Service Tool ..........................................5 Channel Audio Signal Circuit Inspection .................57 Satellite Radio Tuner (Factory Installed) Right AUDIO ................................................................. 6 Channel Audio Signal Circuit Inspection .................57 I Component Parts and Harness Connector Loca- Steering Switch Check (without bluetooth) ..............58 tion ............................................................................6 Steering Switch Check (with bluetooth) ...................59 System Description ...................................................7 AV Switch Check .....................................................61 Schematic ...............................................................10 J munication Line Check (Without NAVI).... 61 Wiring Diagram - AUDIO - .......................................15 munication Line Check (With NAVI) ......62 Audio Unit (Base System) Harness Connector Sound Is Not Heard from Front