Checking of Refrigerant Charge

Quickly Checking of Refrigerant Charge
The following procedure can be used for quickly checking whether the A/C system has a proper charge of refrigerant or not.
1. Run engine at fast idle.
2. Operate A/C at the following conditions for a few minutes.
- Main (front) A/C switch at ON position
- Rear A/C main switch at ON position (if equipped)
- Front blower motor switch at max position
- Rear blower motor switch at max position (if equipped)
- Air outlet control button at face position
- Temperature control lever at max cool position
- Vehicle door at all open
- Air inlet door at recirculation position

Step 1 - 3:

3. Look at the sight glass (1) and compare what is observed with the symptoms listed in the table.

NOTE: For specified amount of refrigerant, refer to "Operation Procedure for Charging A/C with Refrigerant:".