2003 LEXUS LS430 Factory Repair Manual

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Page 3945 of 4500

LEXUS LS430 2003 Factory Repair Manual LOCK according to the chart above. NG: Go to step 2 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE 2.CHECK WIRE HARNESS (DRIVER SEAT ECU - POWER SEAT SENSOR AND BODY GROU

Page 3946 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 25: Identifying D27, D28 Driver Seat ECU Connector Terminals And Power Seat Sensor Connector Terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Page 3947 of 4500

LEXUS LS430 2003 Factory Repair Manual OK: GO TO NEXT STEP 3.CHECK DRIVER SEAT ECU (SENSOR POWER SOURCE VOLTAGE) a. Turn the ignition switch ON. b. Measure the voltage of the ECU connector. Standard: TESTER CONNECTION AND SPECIFIE

Page 3948 of 4500

LEXUS LS430 2003 Factory Repair Manual 4.CHECK POWER SEAT POSITION SENSOR a. Turn the ignition switch ON. b. Measure the voltage of the ECU connector. Standard: TESTER CONNECTION AND SPECIFIED CONDITION HINT: Check the power seat

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 3950 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 28: Lumbar Support Switch Wiring Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE 1.INSPECT LUMBAR SUPPORT SWITCH a. Remove the lumbar support switch. b. Measure th

Page 3951 of 4500

LEXUS LS430 2003 Factory Repair Manual Lower side control TESTER CONNECTION AND SPECIFIED CONDITION Tester ConnectionSwitch ConditionSpecified Condition 5 (B) - 1 (H)HOLDBelow 1 ohms 4 (R) - 6 (E)HOLDBelow 1 ohms 1 (H) - 6 (E)OFFBelow 1

Page 3952 of 4500

LEXUS LS430 2003 Factory Repair Manual
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