RM3090E _58 Vehicle Interior _008789 HEATING / AIR CONDITIONING _0049189 AIR CONDITIONING SYSTEM(for Manual Air Conditioning System) D

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Manual Air Conditioning System)  CHECK MODE PROCEDURE  


REFRIGERANT SHORTAGE CHECK IN NORMAL OPERATION (CHECK A/C SWITCH INDICATOR AND DTC)


E269934

a.

Start the engine.


b.

Check that the A/C switch indicator remains on when the following conditions are met.

Measurement Condition
Item Condition

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

A/C switch On
Air conditioning operation time 15 minutes or more
Ambient temperature* 0 to 49°C (32 to 120°F)
Engine coolant temperature 45°C (113°F) or higher

HINT:

The A/C switch indicator and air conditioning system turn off if the amount of refrigerant in the system is insufficient.



c.

Connect the GTS to the DLC3.


d.

Check for DTC B14B8.

Body Electrical > Air Conditioner > Trouble Codes
50001 121
Result
Result Amount of Refrigerant Corrective Action
DTC B14B8 is output Empty or nearly empty Check for refrigerant leaks using a halogen leak detector, and repair if necessary.
Click here(Click here)
DTC B14B8 is not output Correct or insufficient Perform a refrigerant shortage check using the GTS.



REFRIGERANT SHORTAGE CHECK USING THE GTS


a.

Connect the GTS to the DLC3.


b.

Start the engine.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Air Conditioner / Utility / Refrigerant Shortage Check.


e.

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 level HI

Body Electrical > Air Conditioner > Utility
Tester Display
Refrigerant Gas Volume Check
50005 121 2186

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

HINT:
·

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
1.

Check for refrigerant leaks using a halogen leak detector, and repair if necessary.

Click here(Click here)

2.

Evacuate the air conditioning system and charge it with the appropriate volume of new or purified refrigerant.


Refrigerant correct Correct -