2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual a. Measure the resistance according to the value (s) in the table below.  
Standard:  
BLOWER MOTOR - BLOWER RESISTOR RESISTANCE 
Tester connectionConditionSpecified condition
R29-1 (+) - R30-2AlwaysB

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LEXUS LS430 2003  Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 180: Checking Harness And Connector (Blower Motor -Blower Resistor) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE OR REPLACE HARNESS OR CONNECTOR  
REPLACE REAR AIR CONDITIONING AMPL

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LEXUS LS430 2003  Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE 
a. PERFORM ACTUATOR CHECK
 
a. Warm up the engine.  
b. Set the actuator check mode (see ACTUATOR CHECK
 ).  
c. Press the driver tem

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LEXUS LS430 2003  Factory Repair Manual Fig. 182: Inspecting Exhaust Servomotor 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPLACE EXHAUST SERVOMOTOR

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LEXUS LS430 2003  Factory Repair Manual OK: Go to next step  
c.CHECK HARNESS AND CONNECTOR (EXHAUST SERVOMOTOR - REAR AIR 
CONDITIONING AMPLIFIER) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE
 ) 
a. Measure the resistance according to the

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LEXUS LS430 2003  Factory Repair Manual

Page 448 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 183: Checking Harness And Connector (Exhaust Servomotor -Rear Air Conditioning 
Amplifier) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
OK: REPLACE REAR AIR CONDITIONING AMPLIFIER (SEE OVERHAUL