2003 LEXUS LS430 Factory Repair Manual

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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 posi

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LEXUS LS430 2003  Factory Repair Manual Fig. 99: TPBDR Terminal Voltage/Damper Opening Angle Graph
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Fig. 100: DTC Detection Item Trouble Area Chart
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual INSPECTION PROCEDURE 
1.READ VALUE ON HAND-HELD TESTER 
a. Connect the hand-held tester to the DLC3.  
b. Turn the ignition switch to the ON position and push the hand-held tester main switch on.  
c.

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LEXUS LS430 2003  Factory Repair Manual HINT: 
As the set temperature increases, the voltage decreases gradually without interruption.  
Result:  
AIR CONDITIONING AMPLIFIER (TPBDR - SG-7) TEST RESULT 
Fig. 102: Inspecting Air Conditioning

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LEXUS LS430 2003  Factory Repair Manual a. Remove the cool air bypass servomotor.  
b. Measure the resistance according to the value (s) in the table below. 
Standard:  
COOL AIR BYPASS SERVOMOTOR RESISTANCE 
c. Measure the resistance accor

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LEXUS LS430 2003  Factory Repair Manual Fig. 103: Inspecting Cool Air Bypass Servomotor 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE COOL AIR BYPASS SERVOMOTOR  
OK: Go to next step  
4.CHECK HARNESS AND CONNECTOR (COOL AIR BY

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LEXUS LS430 2003  Factory Repair Manual C24-2 (GND) - Body groundAlways10 kohms or higher

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LEXUS LS430 2003  Factory Repair Manual