2003 LEXUS LS430 headrest

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Page 3915 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 4: Communication Table 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
1.FRONT POWER SEAT CONTROL SYSTEM DESCRIPTION 
The power seat is standard equipment for the front seats and optional equipmen

Page 3916 of 4500

LEXUS LS430 2003  Factory Repair Manual 3.SYSTEM OPERATION 
The front power seat's adjustment and position memory are shown in the chart below. 
SYSTEM OPERATION 
For the memory function, first, memory switch operation is transferred fr

Page 3919 of 4500

LEXUS LS430 2003  Factory Repair Manual Front power seat:  
FRONT POWER SEAT - CUSTOMIZE PARAMETERS 
1.INITIALIZE FRONT POWER SEAT CONTROL SYSTEM 
a. The power seat ECU must be initialized under any of the following conditions. 
The battery

Page 3930 of 4500

LEXUS LS430 2003  Factory Repair Manual time. The DATA LIST can be displayed during the ACTIVE TEST.
a. Connect the hand-held tester (with CAN VIM) to the DLC3.  
b. Turn the ignition switch ON.  
c. Perform the ACTIVE TEST by following the

Page 3939 of 4500

LEXUS LS430 2003  Factory Repair Manual INSPECTION PROCEDURE 
1.PERFORM ACTIVE TEST USING HAND-HELD TESTER 
a. Connect the hand-held tester (with CAN VIM) to the DLC3.  
b. Turn the ignition switch ON and push the hand-held tester (with CAN

Page 3949 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 27: Identifying D28 Driver Seat ECU Connector Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
A: REPLACE FRONT SEAT HEADREST ADJUSTER  
B: REPLACE FRONT POWER SEAT ADJUSTER  
OK: PROCEED

Page 3966 of 4500

LEXUS LS430 2003  Factory Repair Manual HINT: 
After a door is unlocked by the transmitter, check that each position (driver seat, outer mirror, seat belt 
anchor, and tilt and telescopic) accurately moves to a recorded position. 
a. Check

Page 3967 of 4500

LEXUS LS430 2003  Factory Repair Manual OPERATION AND TILT AND TELESCOPIC POSITION OPERATION 
HINT: 
*1: Wireless door lock control system 
*2: Smart key system 
If the result is not as specified, inspect the tilt and telescopic. 
4.CHECK F
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