2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 18: Climate Control Does Not Operate (Blinking Pattern 1) Wiring Diagram (2 Of 3) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 19: Climate Control Does Not Operate (Blinking Pattern 1) Wiring Diagram (3 Of 3) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
1.CHECK CLIMATE CONTROL SWITCH (INDICATOR)

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LEXUS LS430 2003  Factory Repair Manual Result:  
RESULT REFERENCE 
B: Go to step 5  
A: Go to next step  
2.CHECK SEAT CLIMATE CONTROL CONTROLLER (SEATBACK) 
HINT: 
When the driver side indicator is blinking, check the driver side connecto

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LEXUS LS430 2003  Factory Repair Manual Fig. 20: Checking Seat Climate Control Controller (Seatback) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
B: REPLACE SEAT CLIMATE CONTROL CONTROLLER (SEATBACK)  
A: Go to next step  
3.CHECK WIRE HA

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LEXUS LS430 2003  Factory Repair Manual Driver side  
TESTER CONNECTION AND SPECIFIED CONDITION - DRIVER SIDE 
Passenger side  
TESTER CONNECTION AND SPECIFIED CONDITION - PASSENGER SIDE 
Tester ConnectionSpecified Condition
C20-1 (TDB-) -

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LEXUS LS430 2003  Factory Repair Manual Fig. 21: Identifying Seat Climate Control Blower Connector And Seat Climate Controller

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LEXUS LS430 2003  Factory Repair Manual Connector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR  
OK: Go to next step  
4.CHECK SEAT CLIMATE CONTROL CONTROLLER (SEAT CUSHION) 
HINT: 
When the dri

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