2003 LEXUS LS430 Factory Repair Manual

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Page 297 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 74: Checking Harness And Connector (A/C Solar Sensor - Air Conditoning Amplifier)

Page 298 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: REPLACE AIR CONDITIONING AMPLIFIER (SEE REPLACEMENT ) CIRCUIT DESCRIPTION The pressure switch sends th

Page 299 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 76: Pressure Switch Circuit Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE 1.CHECK REFRIGERANT VOLUME a. Check the sight glass on the liquid tube. Test conditions: Engin

Page 300 of 4500

LEXUS LS430 2003 Factory Repair Manual A/C switch ON Single A/C: Temperature control switch at "MAX. COOL" position Dual A/C: Rear temperature control switch at "MAX. COOL" position Front driver side temperature contr

Page 301 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 78: Refrigerant Volume Problem Symptoms Chart Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. *: Bubbles in the sight glass with ambient temperature higher than usual can be considered normal if

Page 302 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 79: Inspecting Air Conditioning Amplifier (PRS, SG-5)

Page 303 of 4500

LEXUS LS430 2003 Factory Repair Manual Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. NG: Go to STEP 3 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 3.INSPECT A/C PRESSURE SENSOR a. Disconnect the A/C pressure

Page 304 of 4500

LEXUS LS430 2003 Factory Repair Manual Fig. 80: Inspecting A/C Pressure Sensor Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
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