2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 30: DTC Detecting Condition Chart (Audio And Rear A/C Control SW) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
HINT: 
*1: Even if no failure is detected, a trouble code may be recorded dependin

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LEXUS LS430 2003  Factory Repair Manual Methods used to verify the cause of the problem are listed in order of probability in the verification 
column. 
Fig. 32: DTC Detecting Condition Chart [RADIO Tuner]
 
Courtesy of TOYOTA MOTOR SALES,

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LEXUS LS430 2003  Factory Repair Manual HINT: 
*1: Even if no failure is detected, a trouble code may be recorded depending on the battery 
condition or engine start voltage.  
*2: If the power connector is disconnected after the engine sta

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LEXUS LS430 2003  Factory Repair Manual 6.STEREO COMPONENT AMPLIFIER ASSY (Physical address: 440) [DSP AMP] 
a. Logical address: 01 (Communication control) 
HINT: 
Methods used to verify the cause of the problem are listed in order of proba

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LEXUS LS430 2003  Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 34: DTC Detecting Condition Chart Physical (Address: 440)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
HINT: 
*1: Even if no failure is detected, a trouble code may be recorded depending on the

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LEXUS LS430 2003  Factory Repair Manual INSPECTION PROCEDURE 
1.CHECK CABIN 
a. Check that conditions in the cabin are likely to cause condensation.  
HINT: 
This problem occurs when the cabin is humid and the temperature changes rapidly. T

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LEXUS LS430 2003  Factory Repair Manual decrease reception capacity, are installed. 
OK: Optional components are installed.  
OK: REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN  
NG: Go to next step  
3.CHECK THE ANTENNA 
a. Check the antenna f