Heating and Air Conditioning: Service Precautions

AIR CONDITIONING: AIR CONDITIONING SYSTEM: PRECAUTION

PRECAUTION

1. NOTICE FOR INITIALIZATION
NOTE:
When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected.





2. NOTICE FOR RESETTING
NOTE:
When disconnecting the cable from the negative (-) battery terminal of the vehicle with the rear cooler unit, change the air outlet mode position for the rear LH and RH seats to "FOOT".

3. PRECAUTIONS WHEN USING TECHSTREAM
(a) When using the Techstream to troubleshoot the LIN communication line:
Connect the Techstream to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the Techstream and vehicle begins.
(b) After all DTCs are cleared, check if the trouble occurs again 6 seconds after the engine switch is turned on (IG).
4. IF ANY OF FOLLOWING CONDITIONS ARE MET, KEEP ENGINE IDLING WITH A/C ON (ENGINE SPEED AT LESS THAN 2000 RPM) FOR AT LEAST 1 MINUTE:

- Refrigerant gas has been refilled or A/C parts have been replaced.
- A long time has elapsed since the engine was stopped.
NOTE:
If the engine speed exceeds 2000 rpm, the A/C compressor may be damaged.





5. DO NOT HANDLE REFRIGERANT IN ENCLOSED AREAS OR NEAR OPEN FLAMES

6. ALWAYS WEAR EYE PROTECTION





7. 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.
(c) Go immediately to a physician or hospital for professional treatment.

8. NEVER HEAT CONTAINER OR EXPOSE IT TO OPEN FLAME
9. BE CAREFUL NOT TO DROP CONTAINER OR SUBJECT IT TO PHYSICAL SHOCKS





10. 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.

11. 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.
12. 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.
13. DO NOT OPERATE ENGINE AND COMPRESSOR WITHOUT REFRIGERANT
NOTE:
This may damage the inside of the compressor.