2003 LEXUS LS430 Identifying ac

Fig. 10: Identifying Luggage Room Junction Block Components
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Luggage Room Junction Block
FuseSystem
7.5ALCE LPLight Auto Turn Off System

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

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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Fig. 8: Identifying Normally Functioning Refrigeration System
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2. Moisture present in refri
geration system

Fig. 9: Identifying Moisture Present In Refrigeration System
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Fig. 10: Refrigerant Pressure With Manifold Gauge Set Chart (Moisture Present)

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3. Insufficient cooling
Fig. 11: Identifying Insufficient Cooling

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