Compressor Dose Not Operate

COMPRESSOR DOSE DOT OPERATE





Description
Symptom: Compressor dose not operate.




Diagnosis Procedure

NOTE:
- Perform self-diagnoses with CONSULT-III before performing symptom diagnosis. If DTC is detected, perform the corresponding diagnosis.
- Check that refrigerant is enclosed in cooler cycle normally. If refrigerant amount is shortage from proper amount, perform inspection of refrigerant leakage.
1.CHECK MAGNET CLUTCH OPERATION
Check magnet clutch. Magnetic Clutch.
Does it operate normally?
YES - GO TO 2.
NO - Repair or replace malfunctioning parts.
2.CHECK REFRIGERANT PRESSURE SENSOR
Check refrigerant pressure sensor. Testing and Inspection (VQ37VHR) or Testing and Inspection Testing and Inspection, "Component Function Check" (VK56VD).
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace malfunctioning parts.
3.CHECK A/C AUTO AMP. OUTPUT SIGNAL
With CONSULT-III
Check "COMP REQ SIG" and "FAN REQ SIG" in "DATA MONITOR" mode of "HVAC" using CONSULT-III.





Is the inspection result normal?
YES - GO TO 4.
NO - Replace A/C auto amp.. Removal And Installation.
4.CHECK ECM INPUT SIGNAL
With CONSULT-III
Check "AIR COND SIG" and "HEATER FAN SW" in "DATA MONITOR" mode of "ECM" using CONSULT-III.





Is the inspection result normal?
YES - GO TO 5.
NO - Check CAN communication system. Trouble Diagnosis Flow Chart.
5.CHECK IPDM E/R INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Check "AC COMP REQ" in "DATA MONITOR" mode of "IPDM E/R" using CONSULT-III.





Is the inspection result normal?
YES - INSPECTION END
NO - Check CAN communication system. Trouble Diagnosis Flow Chart.