2003 LEXUS LS430 Factory Repair Manual

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Page 1857 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 6: Identifying Cooling Fan System Component Location Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. SYSTEM DIAGRAM Fig. 7: System Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 1858 of 4500

LEXUS LS430 2003 Factory Repair Manual ON-VEHICLE INSPECTION 1.CHECK COOLING FAN SYSTEM a. Look at the chart below. Check that when the cooling fan is in the condition on the left, its operation is what is written on the right. Standa

Page 1859 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 8: Checking Cooling Fan System Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 3.INSPECT COOLING FAN ECU WIRE HARNESS a. Remove the air cleaner inlet No. 1. b. Disconnect the 2 connectors. c.

Page 1860 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 9: Measuring Voltage Between Terminals 1 And 3. Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION 1.INSPECT RELAY (Marking: FAN) a. Remove the FAN relay from the FL block b. Measure t

Page 1861 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 10: Measuring Resistance Relay Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 2.INSPECT ECT SWITCH a. Measure the resistance of the switch. STANDARD SPECIFICATION If the result is not as spec

Page 1862 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 11: Measuring resistance of switch Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. REPLACEMENT 1.REMOVE V-BANK COVER 2.REMOVE AIR CLEANER INLET NO.1 (See REPLACEMENT ) 3.DRAIN ENGINE COOLANT

Page 1863 of 4500

LEXUS LS430 2003 Factory Repair Manual c. Close the radiator drain plug. d. Tighten the 2 drain cock plugs. Torque: 13 Nm (130 kgf cm, 9 ft lbf) Fig. 12: Loosening Radiator Drain Plug And Drain Cock Plugs Courtesy of TOYOTA MOTOR SA

Page 1864 of 4500

LEXUS LS430 2003 Factory Repair Manual recommended. <003200450056004800550059004800030057004b00480003004600520052004f0044005100570003004f004800590048004f0003004c00510056004c0047004800030057004b00480003005500440047004c00440057005200550003
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