2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 83: Identifying Steering Pad Switch Item Condition Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS 
TABLE  
NG: REPLACE STEER

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LEXUS LS430 2003  Factory Repair Manual Fig. 84: Identifying Stereo Component Amplifier Assy - Stereo Component Tuner Wiring Diagram 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
1.CHECK HARNESS AND CONNECTOR (STEREO

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LEXUS LS430 2003  Factory Repair Manual Fig. 85: Disconnecting Connector From Stereo Component Amplifier Assy S29 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
MTX- - Body groundAlways10 kohms or higher
(1)Mark Levinson Models
(2)Standard M

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LEXUS LS430 2003  Factory Repair Manual Fig. 86: Identifying Stereo Amplifier Connector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 87: Identifying Stereo Components Connector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR  
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN DIAGNOSTIC

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LEXUS LS430 2003  Factory Repair Manual In AVC-LAN, radio receiver assy becomes the communication master, and the radio receiver assy has enough 
resistance necessary for transmitting the communication. 
WIRING DIAGRAM 
Fig. 88: Identifying

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LEXUS LS430 2003  Factory Repair Manual Fig. 89: Identifying Stereo Component Amplifier Assy - Audio And Rear A/C Control SW 
Connector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 90: Identifying Stereo Components Amplifier Assy Connector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.