2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 7: Identifying Closer Motor And Cam Position Switch 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 8: Identifying Switches ON/OFF Patterns 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
When rotation operation is normal, the operation starts from the top of the list. During reverse 
rotation,

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LEXUS LS430 2003  Factory Repair Manual 2.CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 
Go To Next Step.  
3.INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX 
COMMUNICATION SYSTEM (BEAN) 
a. Use the hand-held tester to check for

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LEXUS LS430 2003  Factory Repair Manual Go To Next Step.  
7.ADJUST, REPAIR OR REPLACE  
8.CONFIRMATION TEST 
END  
Fig. 9: Door Closer System Analysis Check Sheet 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 10: Problem Symptoms Table 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual 1.DRIVER DOOR ECU 
Fig. 11: Identifying Driver Door ECU Terminals
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
a. Disconnect the F23 and D25 ECU connectors  
b. Measure the voltage and resistance o

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LEXUS LS430 2003  Factory Repair Manual Fig. 13: Driver Door ECU Terminals Reference Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
If the result is not as specified, the driver door ECU may have a malfunction. 
2.PASSENGER DOOR ECU

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LEXUS LS430 2003  Factory Repair Manual Fig. 15: Passenger Door ECU Terminals Reference Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
If the result is not as specified, there may be a malfunction on the wire harness side. 
c. Reconne