Heating and Air Conditioning: Service Precautions

AIR CONDITIONING: AIR CONDITIONING SYSTEM: PRECAUTION

1. 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 power switch is turned ON (IG).

2. NOTICES FOR HYBRID SYSTEM ACTIVATION

* When the warning light is illuminated or the battery has been disconnected and reconnected, pressing the power switch may not start the system on the first try. If so, press the power switch again.

* With the power switch on (IG), disconnect the battery. If the key is not in the vehicle interior during reconnection, DTC B2799 may be output.

3. BECAUSE COMPRESSOR HAS HIGH-VOLTAGE CIRCUIT, WEAR INSULATED GLOVES AND PULL OUT SERVICE PLUG TO CUT HIGH-VOLTAGE CIRCUIT BEFORE INSPECTION

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





5. ALWAYS WEAR EYE PROTECTION

6. 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 hospital or see a physician for professional treatment.

7. NEVER HEAT CONTAINER OR EXPOSE IT TO NAKED FLAME

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

9. DO NOT OPERATE COMPRESSOR WITHOUT ENOUGH 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.

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

Open and close only the low pressure valve. If the high pressure valves are opened, refrigerant flows in the reverse direction causing the charging cylinder to rupture.

11. 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.

12. PRECAUTIONS TO BE OBSERVED WHILE SERVICING

CAUTION:
Wear insulated gloves and pull out the service plug grip before inspection, as some of the procedures require disconnecting the high-voltage connectors.

NOTICE:
* For the electric inverter compressor, use ND-OIL 11.
* Electrical insulation performance may decrease significantly if even a small amount of oil other than ND-OIL 11 is used or enters the refrigeration cycle, causing a DTC to be output.
* Replace the main components (evaporator, condenser, and compressor) if a large amount of oil other than ND-OIL 11 enters the system. Failing to do so may cause electrical insulation performance to remain low, causing a DTC to be output.