2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual LS 430 
CEC  
Computerized Engine Controls 
EVAP  
Fuel Evaporative System 
EVAP-CCVVSV  
EVAP Canister Closed Valve Vacuum Switching Valve 
EVAP-VC  
EVAP Vapor Canister 
EVAP-VPS  
EVAP Vapor Pressu

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LEXUS LS430 2003  Factory Repair Manual EVAP-VSV  
EVAP Vacuum Switching Valve 
FR  
Fill Pipe Restrictor 
HO2S  
Heated Oxygen Sensor 
MIL  
Malfunction Indicator Light 
ORVR-COV  
On-Board Refueling Vapor Recovery Cut-Off Valve 
ORVR-OCKV

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LEXUS LS430 2003  Factory Repair Manual LOCATION

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LEXUS LS430 2003  Factory Repair Manual Fig. 1: Identifying Components Location Emission Control System
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
SYSTEM DIAGRAM 
Fig. 2: System Diagram Emission Control System (1 Of 4)
 
Courtesy of TOYO

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LEXUS LS430 2003  Factory Repair Manual Fig. 3: System Diagram Emission Control System (2 Of 4) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 4: System Diagram Emission Control System (3 Of 4) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 5: System Diagram Emission Control System (4 Of 4) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
ON-VEHICLE INSPECTION 
1.INSPECT A/F COMPENSATION SYSTEM 
a. Connect the hand-held tester to term

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LEXUS LS430 2003  Factory Repair Manual c. Warm up the heated oxygen sensor with the engine speed at 2,500 rpm for approximately 2 
minutes.  
d. Check that the voltage changes between 0 and 1 V with the engine speed at 2,500 rpm. 
OK: The