Component Function Check

1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector terminals as per the following.

   ECM				Condition	Voltage
   +		-
   Connector	Terminal	Connector	Terminal
   F78	70 (Refrigerant pressure sensor signal)	F79	97	[Engine is running] Warm-up condition Idle speed Both A/C switch and blower fan motor switch: ON (Compressor operates)	1.0 - 4.0 V

Is the inspection result normal?

YES

INSPECTION END

NO

Proceed to Diagnosis Procedure .