2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 6: Identifying Security Indicator Output Codes 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
b. Finish the automatic key code registration mode. 
HINT: 
The automatic key code registration mode

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LEXUS LS430 2003  Factory Repair Manual 3.REGISTRATION OF ADDITIONAL KEY (ADDITIONAL REGISTRATION) 
a. Register an additional key using the hand-held tester. 
HINT: 
A maximum of 5 master key codes and 3 sub-key codes can be registered.  
R

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LEXUS LS430 2003  Factory Repair Manual Fig. 7: Automatic Key Code Registration Flowchart (Additional Registration) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
HINT: 
A brief outline of procedures for key code registration is shown in th

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LEXUS LS430 2003  Factory Repair Manual 4.ERASURE OF KEY CODE 
a. Erase key codes using the hand-held tester. 
HINT: 
All key codes are erased except for the master key, which is used for erasing the key codes. 
In order to use a key whose

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LEXUS LS430 2003  Factory Repair Manual a. Register the ECU Communication ID 
1. Using SST, connect terminals TC and CG of the DLC3. SST 09843-18040 
Fig. 9: Connecting Terminals TC And CG Of DLC3 Using SST
 
Courtesy of TOYOTA MOTOR SALES,

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LEXUS LS430 2003  Factory Repair Manual Fig. 10: Identifying T8 Amplifier Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
a. Disconnect the T8 amplifier connector.  
b. Measure the resistance of the wire harness side conn

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LEXUS LS430 2003  Factory Repair Manual d. Measure the voltage and resistance of the connector. 
Standard:  
TRANSPONDER KEY AMPLIFIER - VOLTAGE TABLE 
If the result is not as specified, the amplifier may have a malfunction. 
e. Inspect usi

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LEXUS LS430 2003  Factory Repair Manual Fig. 11: Identifying Waveform 1 Graph
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Waveform 1 (Reference):  
WAVEFORM 1 REFERENCE TABLE 
Waveform 2 (Reference):  
Fig. 12: Identifying Waveform 2 Grap