Toyota 4Runner: Precaution

Toyota 4Runner Service Manual / Vehicle Interior / Heating / Air Conditioning / Air Conditioning System(for Automatic Air Conditioning System) / Precaution

PRECAUTION

1. IGNITION SWITCH EXPRESSIONS

HINT:

The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.

Expression	Ignition Switch (position)	Engine Switch (condition)
Ignition Switch off	Off	Off
Ignition Switch ACC	ACC	On (ACC)
Ignition Switch ON	ON	On (IG)
Engine Start	START	Start

2. IF ANY OF FOLLOWING CONDITIONS ARE MET, KEEP ENGINE IDLING (ENGINE SPEED AT LESS THAN 2000 RPM) WITH AIR CONDITIONING SWITCH ON FOR AT LEAST 2 MINUTES

Refrigerant gas has been refilled or parts of the air conditioning system have been replaced.
The engine has not been started for a long time.

NOTICE:

If the engine speed is more than 2000 rpm, the cooler compressor assembly may be damaged.

3. DO NOT HANDLE REFRIGERANT IN AN ENCLOSED AREA OR NEAR AN OPEN FLAME

4. ALWAYS WEAR EYE PROTECTION

5. BE CAREFUL NOT TO GET LIQUID REFRIGERANT IN YOUR EYES OR ON YOUR SKIN

If liquid refrigerant gets in your eyes or on your skin:

(a) Wash the area with lots of cold water.

CAUTION:

Do not rub your eyes or skin.

(b) Apply clean petroleum jelly to the skin.

6. NEVER HEAT CONTAINER OR EXPOSE IT TO OPEN FLAME

7. BE CAREFUL NOT TO DROP CONTAINER OR APPLY PHYSICAL SHOCKS TO IT

8. DO NOT OPERATE COMPRESSOR WITH INSUFFICIENT REFRIGERANT IN 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.

9. DO NOT OPEN HIGH PRESSURE MANIFOLD VALVE WHILE COMPRESSOR IS OPERATING

Open and close only the low pressure valve. Opening and closing the high pressure valve could cause the charging cylinder to rupture.

Text in Illustration

*a	Incorrect
*b	Correct

10. BE CAREFUL NOT TO OVERCHARGE SYSTEM WITH REFRIGERANT

If the refrigerant is overcharged, it causes problems such as insufficient cooling, poor fuel economy and engine overheating.

11. DO NOT OPERATE ENGINE AND COOLER COMPRESSOR ASSEMBLY WITHOUT REFRIGERANT

NOTICE:

This may damage the inside of the cooler compressor assembly.

Parts Location

PARTS LOCATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ...

System Description

SYSTEM DESCRIPTION 1. GENERAL (a) The air conditioning system has the following controls. Control Outline Neural Network Control This control is ca ...

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