Compressor Does Not Operate

COMPRESSOR DOES NOT OPERATE

Description


SYMPTOM

Compressor does not operate.


Diagnosis Procedure

NOTE:
- Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any 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 the inspection of refrigerant leakage.

1. CHECK REFRIGERANT PRESSURE SENSOR

Check refrigerant pressure sensor. Refrigerant Pressure Sensor.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace malfunctioning parts.

2. CHECK A/C AUTO AMP. INPUT SIGNAL

With CONSULT
1.Select "DATA MONITOR" mode of "HVAC" using CONSULT.
2.Select "A/C PD CUT" , and check status under the following conditions.





Is the inspection result normal?
YES- GO TO 3.
NO- Check for the ECM. Air Conditioning Cut Control
.

3. CHECK A/C AUTO AMP. OUTPUT SIGNAL

With CONSULT
Check "COMP REQ SIG" and "FAN REQ SIG" in "DATA MONITOR" mode of "HVAC" using CONSULT.





Is the inspection result normal?
YES- GO TO 4.
NO- Replace A/C auto amp.. Removal and Installation.

4. CHECK A/C AUTO AMP. OUTPUT SIGNAL

With CONSULT
1.Select "ACTIV TEST" mode of "HVAC" using CONSULT. Consult Function.
2.Check the electric compressor operations in each mode.
Is the inspection result normal?
YES- Replace A/C auto amp.
NO- Replace electric compressor.