LEXUS LS430 2003 Factory Repair Manual

Fig. 9: Checking Home Link Tester's Green LED Illuminates
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c. When the inspection is complete, re-register the customer's transmitter code(s) again.

PRECAUTION
1.DO NOT HANDLE REFRIGERANT IN AN ENCLOSED AREA OR NEAR NAKED FLAME
Fig. 1: Identifying Precaution For Handling Refrigerant

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2.ALWAYS WEAR EYE PROTECTION
3.BE CAREFUL NOT TO GET LIQUID REFRIGERANT IN YOUR EYES OR ON YOUR SKIN

Fig. 2: Identifying Precaution For Liquid Refrigerant
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If liquid refrigerant gets in your eyes or on your skin:
a. Wash the area with lots of cool water.
b. Apply clean petroleum jelly to the skin.
c. Go immediately to a physician or hospital for professional treatment.
4.NEVER HEAT THE CONTAINER OR EXPOSE IT TO NAKED FLAME
5.BE CAREFUL NOT TO DROP THE CONTAINER OR APPLY PHYSICAL SHOCKS TO IT
6.DO NOT OPERATE THE COMPRESSOR WITHOUT ENOUGH REFRIGERANT IN THE
REFRIGERANT SYSTEM
If there is not enough refrigerant in the refrigerant system, oil lubrication will be insufficient and

compressor burnout may occur. Necessary care should be taken to avoid this.
Fig. 3: Identifying Precaution Operating Compressor

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7.DO NOT OPEN HIGH PRESSURE MANIFOLD VALVE WHILE COMPRESSOR IS
OPERATING
If the high pressure valves are opened, refrigerant flows in the reverse direction and could cause the
charging cylinder to rupture. Open and close only the low pressure valve.
8.BE CAREFUL NOT TO OVERCHARGE SYSTEM WITH REFRIGERANT
If refrigerant is overcharged, it causes problems such as insufficient cooling, poor fuel economy, engine

overheating etc.
9.DO NOT OPERATE ENGINE AND COMPRESSOR WITH NO REFRIGERANT
10.SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
The LEXUS LS430 is equipped with an SRS (Supplemental Restraint system) such as the driver, front
passenger, side, curtain shield air bags etc.. Failure to carry out service operation in the correct sequence
could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident.
Before servicing (including removal or installation of parts, inspection or replacement), be sure to read
the precautionary notices in PRECAUTION
.
11.PRECAUTION FOR DISCONNECTING THE BATTERY CABLE
DISCONNECTING BATTERY CABLE
LOCATION
System NameProceed To
Front Power Seat Control SystemINITIALIZATION

Fig. 4: Identifying Air Conditioning System Components And Replacements Location (1 Of 2)
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Fig. 5: Identifying Air Conditioning System Components And Replacements Location (2 Of 2)
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ON-VEHICLE INSPECTION
1.INSPECT REFRIGERANT VOLUME
a. Check the sight glass on the liquid tube.
Test conditions:
Engine is running at 1,500 rpm
Single A/C:
Blower speed control switch at "HI" position
Dual A/C:
Front blower switch at "HI" position
Rear blower switch at "HI" position
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 control switch at "MAX. COOL" position
Front passenger side temperature control switch at "MAX. COOL" position
Fully open the doors

Fig. 6: Checking Sight Glass On Liquid Tube
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Fig. 7: Refrigerant Volume Chart

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