AIR CONDITIONING SYSTEM CHECK MODE PROCEDURE

REFRIGERANT SHORTAGE CHECK USING GTS

1. Connect the GTS to the DLC3.

2. Engine is started.

3. Turn the GTS on.

4. Enter the following menus: Body Electrical / Air Conditioner / Utility / Refrigerant Gas Volume Check.

   
   Body Electrical > Air Conditioner > Utility

   Tester Display
   Refrigerant Gas Volume Check

5. According to the display on the GTS, perform the refrigerant shortage check when the following conditions are met.

   Measurement Condition:

   Item	Condition
   A/C switch	On
   Ambient temperature*	0 to 49°C (32 to 120°F)
   Blower speed	HI

   *: If the ambient temperature is not within the range shown, do not perform this check.

   Tech Tips

   
   

   • Refer to the GTS operator's manual for further details.

   • A message indicating a refrigerant shortage is displayed on the GTS and the air conditioning system turns off if the amount of refrigerant in the system is insufficient.

   • DTCs are not stored when performing the refrigerant shortage check using the GTS.

   Result:

   Result	Amount of Refrigerant	Corrective Action
   Refrigerant shortage	Insufficient or leakage	Check for refrigerant leaks using a halogen leak detector, and repair if necessary. Evacuate the air conditioning system and charge it with the appropriate volume of new or purified refrigerant. for HFC-134a (R134a): Click here for HFO-1234yf (R1234yf): Click here
   Refrigerant correct	Correct	-