2003 LEXUS LS430 Factory Repair Manual

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Page 4321 of 4500

LEXUS LS430 2003 Factory Repair Manual LOCATION Fig. 1: Identifying Horn System Components And Replacements Location Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 4322 of 4500

LEXUS LS430 2003 Factory Repair Manual SYSTEM DIAGRAM Fig. 2: Identifying Horn System Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. PROBLEM SYMPTOMS TABLE Fig. 3: Problem Symptoms Table Courtesy of TOYOTA MOTOR SALES, U.S.A.,

Page 4323 of 4500

LEXUS LS430 2003 Factory Repair Manual a. Check the resistance of the HORN fuse. Standard: Below 1 ohms If the result is not as specified, replace the fuse. Fig. 4: Inspecting Fuse (Horn) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 4324 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 5: Inspecting High Pitched Horn Assy Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. If the result is not as specified, replace the horn assy. 3.INSPECT LOW PITCHED HORN ASSY a. Check operation

Page 4325 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 6: Inspecting Low Pitched Horn Assy Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. If the result is not as specified, replace the horn assy. If all the check results are as specified above and t

Page 4326 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 7: Removing LO/HIGH Pitched Horn Assy Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 3.INSTALL LOW PITCHED HORN ASSY a. Place the stay onto the baffle part in the radiator support upper, and the

Page 4327 of 4500

LEXUS LS430 2003 Factory Repair Manual LOCATION Fig. 1: Identifying Ignition System Components And Replacement Location Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. SYSTEM DIAGRAM The ECM determines ignition timing based on signals fr

Page 4328 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 2: Ignition System Diagram (1 Of 2) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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