2003 LEXUS LS430 Factory Repair Manual

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Page 417 of 4500

LEXUS LS430 2003 Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step 6.CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BODY GROUND) (SEE ELECTRONIC CIRCUIT INSP

Page 418 of 4500

LEXUS LS430 2003 Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. OK: Go to next step 7.CHECK HARNESS AND CONNECTOR (BLOWER MOTOR - BATTERY) (SEE ELECTRONIC CIRCUIT INSPECTION PROCEDURE ) a. Remove the blower motor.

Page 419 of 4500

LEXUS LS430 2003 Factory Repair Manual NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step 8.INSPECT BLOWER MOTOR a. Remove the blower motor. b. Connect positive (+) lead to terminal 2 of the blower motor connector and nega

Page 420 of 4500

LEXUS LS430 2003 Factory Repair Manual c. Turn the blower switch on (Lo). <0029004c004a00110003001400190016001d0003002c005100560053004800460057004c0051004a00030024004c005500030026005200510047004c0057004c00520051004c0051004a000300240050005

Page 421 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 164: Identifying Waveform Between Terminal BLW (A11-5) Of A/C Amplifier And Body Ground Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYM

Page 422 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 165: Rear Back-Up Power Source Circuit Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE 1.INSPECT FUSE (RR ECU-B) a. Remove RR ECU-B fuse from luggage room J/B. b. Measure

Page 423 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 166: Identifying Location Of Fuse (RR ECU-B) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: CHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED TO FAILURE FUSE (RR ECU-B) OK: Go to n

Page 424 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 167: Inspecting Rear Air Conditioning Amplifier (R-B - Body Ground) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE CIRCUI
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