2003 LEXUS LS430 Factory Repair Manual

Page 4225 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 40: Identifying Air Conditioning Radiator Assy Components And Replacements (1 Of 2) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 4226 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 41: Identifying Air Conditioning Radiator Assy Components And Replacements (2 Of 2) 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Page 4227 of 4500

LEXUS LS430 2003  Factory Repair Manual INSPECTION 
1.CHECK EVAPORATOR AND HEATER RADIATOR FINS FOR FOREIGN MATTER 
If foreign matter is attached to the fin, blow it off with compressed air. 
2.CHECK FITTINGS FOR CRACKS OR SCRATCHES 
a. Rep

Page 4228 of 4500

LEXUS LS430 2003  Factory Repair Manual 4.REMOVE V-BANK COVER  
5.DISCONNECT SUCTION TUBE SUB-ASSY B 
a. Remove the bolts and slide the plate. Disconnect suction tube sub-assy B. 
b. Remove the O-ring.  
Fig. 42: Disconnecting Suction Tube

Page 4229 of 4500

LEXUS LS430 2003  Factory Repair Manual 7.DISCONNECT HEATER WATER OUTLET HOSE A (FROM HEATER UNIT) 
a. Grip the claws of the hose clip and slide the hose clip along the hose.  
b. Disconnect heater water outlet hose A.  
Fig. 43: Disconnect

Page 4230 of 4500

LEXUS LS430 2003  Factory Repair Manual b. Remove the 2 hole covers, 2 screws and air duct rear No. 1.  
Fig. 44: Separating Air Duct Rear No. 1
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
14.SEPARATE AIR DUCT REAR NO. 2 
a. Remove the

Page 4231 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 45: Separating Console Box Duct No. 1 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
16.REMOVE AIR CONDITIONING RADIATOR ASSY 
a. Disconnect the connectors and wire harness clamps.  
b. Remove th

Page 4232 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 46: Removing Air Conditioning Radiator Assy 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
17.REMOVE HEATER CASE SUB-ASSY 
a. Remove the 5 screws, release the 2 claws and remove the air vent duct