Check Mode Procedure

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: CHECK MODE PROCEDURE

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





(a) Turn the power switch on (READY).

(b) Check that A/C switch indicator is turned on when the following conditions are met.

Measurement Condition





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

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 Techstream to the DLC3.

(d) Check for DTC B14B8.

Result





2. REFRIGERANT SHORTAGE CHECK USING THE TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (READY).

(c) Turn the Techstream on.

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

(e) According to the display on the Techstream, perform the refrigerant shortage check when the following conditions are met.

Measurement Condition





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

HINT
* Refer to the Techstream operator's manual for further details.
* A message indicating a refrigerant shortage is displayed on the Techstream 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 Techstream.

Result