2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 118: Inspecting Air Conditioning Amplifier (SOL+ - SOL-) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
C: REPLACE AIR CONDIT

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LEXUS LS430 2003  Factory Repair Manual Fig. 119: Inspecting Cooler Compressor Assy (Air Conditioner Solenoid) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE COOLER COMPRESSOR ASSY  
OK: Go to next step  
3.CHECK HARNESS AND CON

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LEXUS LS430 2003  Factory Repair Manual Fig. 120: Checking Harness And Connector (Air Conditioning Amplifier - Cooler Compressor 
Assy)

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LEXUS LS430 2003  Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR  
OK: REPLACE AIR CONDITIONING AMPLIFIER (SEE REPLACEMENT
 )  
CIRCUIT DESCRIPTION 
This sensor detects the exha

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LEXUS LS430 2003  Factory Repair Manual Fig. 122: Emission Gas Nox Sensor Circuit 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
1.READ VALUE ON HAND-HELD TESTER 
a. Connect the hand-held tester to the DLC3.  
b. Turn

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LEXUS LS430 2003  Factory Repair Manual The display is as specified in the normal condition.
Result:  
AIR CONDITIONER TEST RESULT 
B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
C: REPLACE AIR CONDITIONING AMPLIFIER

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LEXUS LS430 2003  Factory Repair Manual Fig. 123: Inspecting Air Conditioning Amplifier (NOX - SG-1) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
C: REPLACE AIR CONDITI

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LEXUS LS430 2003  Factory Repair Manual HINT: 
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