IG key OFF.

Disconnect 'A/C PRESSURE TRANSDUCER' connector.

Check if corrosion and contamination at 'A/C PRESSURE TRANSDUCER' terminal is detected.

Check 'A/C PRESSURE TRANSDUCER' connecting torque and A/C refrigerant leakage.

Does any problem is detected at 'A/C PRESSURE TRANSDUCER'?

	▶ Replace 'A/C PRESSURE TRANSDUCER'(A/C high pressure pipe) and go to "Verification of Vehicle Repair".
	▶ Go to "APT waveform inspection" as follows.

IG key OFF.

Connect 'A/C PRESSURE TRANSDUCER' connector.

Connect an oscilloscope prove to 'Signal' terminal of 'A/C PRESSURE TRANSDUCER' connector.

Engine ON.

Monitor 'A/C PRESSURE TRANSDUCER' signal waveform while operating air conditioner.

Fig.1) Waveform of A/C pressure transducer in accordance with A/C operation. (A/C compressor operation)

☞ Output signal(voltage) changes in accordance with the amount of refrigerant and the change of weather occurs.

Check if normal pressure change in accordance with A/C compressor operation at normal pressure range shown in "Specification".

Is the signal waveform normal?

	▶ Go to "Verification of Vehicle Repair" procedure.
	▶ Replaces 'A/C PRESSURE TRANSDUCER' and go to "Verification of Vehicle Repair" procedure.