2003 LEXUS LS430 air condition

Fig. 5: Identifying Air Conditioning System Components And Replacements Location (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2.INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET
a. This is a method in which trouble is located by using a manifold gauge set. Read the manifold
gauge pressure when these conditions are established.
Test conditions:
Temperature at the air inlet with the switch set at RECIRC is 30 to 35°C (86 to 95°F)
Engine is running at 2,000 rpm
Blower speed control switch is at "HI"
Temperature control dial is at "COOL"
HINT:
It should be noted that the gauge indications may vary slightly due to ambient temperature
conditions.
1. Normally functioning refrigeration system
Gauge reading:
Low pressure side: 0.15 to 0.25 MPa (1.5 to 2.5 kgf/cm
2 )
High pressure side: 1.37 to 1.57 MPa (14 to 16 kgf/cm
2 )

Fig. 31: Identifying Air Conditioning Panel Sub-Assy Components And Replacements
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
HINT:
Installation is in the reverse order of removal.
See COMPONENTS .
1.RESTORE SHIP MODE SETTING (W/ CD CHANGER) (See PRECAUTION
)
2.REMOVE INSTRUMENT PANEL FINISH PANEL LOWER CENTER (See step 26 in
REPLACEMENT
)
3.REMOVE PANEL INSTRUMENT CLUSTER FINISH LOWER (See step 27 in
REPLACEMENT
)
4.REMOVE RADIO RECEIVER ASSEMBLY W/BRACKET (See step 4 in REPLACEMENT
)
5.CONFIRM SHIP MODE (W/ CD CHANGER) (See PRECAUTION
)
6.REMOVE TEMPERATURE CONTROL SWITCH ASSY
a. Using a screwdriver, release the 2 claws and remove the temperature control switch.
HINT:
Tape the screwdriver tip before use.
b. Employ the same manner described above to the other side.
c. Disconnect the connectors.

Fig. 35: Removing Heater Control Base Brackets No. 1
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
9.REMOVE AIR CONDITIONER CONTROL ASSEMBLY
a. Disconnect the connector.
b. Remove the 4 screws, release the 4 claws and remove the air conditioner control assembly.

Fig. 36: Removing Air Conditioner Control Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
10.REMOVE HEATER CONTROL HOUSING
a. Remove the 2 screws, release the 4 claws and remove the heater control housin
g.

Fig. 39: Removing Heater Control Base Sub-Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
13.REMOVE AIR CONDITIONER PANEL SUB-ASSY
COMPONENTS

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

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