LEXUS LS430 2003 Factory Repair Manual

Fig. 121: Removing Rear Cooling Unit Case
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Disconnect the connector.
c. Remove the 3 screws and blower motor sub-assy.

Fig. 122: Removing Blower Motor Sub-Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
29.REMOVE COOLING UNIT BLOWER FAN
a. Remove the nut and coolin
g unit blower fan.

Fig. 123: Removing Cooling Unit Blower Fan
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
30.REMOVE AIR CONDITIONING AMPLIFIER ASSY
a. Disconnect the connector.
b. Release the claw and remove the air conditioning amplifier assy.

Fig. 124: Removing Air Conditioning Amplifier Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
31.WIRING AIR INDICATOR HARNESS SUB-ASSY NO. 2
32.REMOVE BLOWER RESISTOR
a. Remove the screw and blower resister.

Fig. 125: Removing Blower Resistor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
33.REMOVE EXHAUST DAMPER SERVOMOTOR
a. Remove the 3 screws and exhaust damper servomotor.

Fig. 126: Removing Exhaust Damper Servomotor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
34.REMOVE EVAPORATOR SUB-ASSY (REAR)
a. Remove the 4 screws and cooler cover plate.
b. Remove the evaporator sub-assy (rear).

Fig. 127: Removing Evaporator Sub-Assy (Rear)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
35.REMOVE REAR COOLING UNIT EXPANSION VALVE
a. Using a hexagon wrench 5 mm (0.20 in.), remove the 2 hexagon bolts, air conditioning tube assy
and rear cooling unit expansion valve.
b. Remove the 4 O-rings from the rear cooling unit expansion valve.

Fig. 128: Removing Rear Cooling Unit Expansion Valve
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
36.INSTALL REAR COOLING UNIT EXPANSION VALVE
a. Sufficiently apply compressor oil to 4 new O-rings and fitting surface of the cooler expansion
valve.
Compressor oil: ND-OIL 8 or equivalent
b. Install the 4 O-rings on the rear cooling unit expansion valve.
c. Using a hexagon wrench 5 mm (0.20 in.), install the rear cooling unit expansion valve, air
conditioning tube assy with the 2 hexagon bolts.
Torque: 3.5 N.m (36 kgf.cm, 31 in.lbf)

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Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
37.INSTALL A PIPE COOLER REFRIGERANT LIQUID
a. Sufficiently apply compressor oil to a new O-ring and fitting surface of the liquid tube.
Compressor oil: ND-OIL 8 or equivalent
b. Install the O-ring on the liquid tube.
c. Install the liquid tube with a bolt.
Torque: 3.5 N.m (35 kgf.cm, 30 in.lbf)
38.INSTALL PIPE COOLER REFRIGERANT SUCTION A
a. Sufficiently apply compressor oil to a new O-ring and fitting surface of the suction hose.
Compressor oil: ND-OIL 8 or equivalent
b. Install the O-ring on the suction hose.
c. Install the suction hose with a bolt.
Torque: 3.5 N.m (35 kgf.cm, 30 in.lbf)

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Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
39.CHARGE REFRIGERANT (See REPLACEMENT
)
40.WARM UP ENGINE
41.INSPECT FOR REFRIGERANT LEAKAGE (See REPLACEMENT
)