Diagnosis Procedure
- Perform self - diagnoses with CONSULT before performing symptom diagnosis. If DTC is detected, perform the corresponding diagnosis.
- Check that refrigerant system is properly charged. If refrigerant amount is below the proper amount, perform inspection of refrigerant leakage.
- CHECK MAGNET CLUTCH OPERATION
Check magnet clutch. Refer to COMPONENT FUNCTION CHECK .
Does it operate normally?
YES
GO TO STEP 2 .
NO
Repair or replace malfunctioning parts.
- CHECK REFRIGERANT PRESSURE SENSOR
Check refrigerant pressure sensor. Refer to COMPONENT FUNCTION CHECK (except for Mexico) .
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Repair or replace malfunctioning parts.
- 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.
Monitor item Condition Status COMP REQ SIG A/C switch ON On OFF Off FAN REQ SIG Front blower motor ON On OFF Off Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Replace A/C auto amp. Refer to REMOVAL AND INSTALLATION .
- CHECK ECM INPUT SIGNAL
Check "AIR COND SIG" and "HEATER FAN SW" in "DATA MONITOR" mode of "ECM" using CONSULT.
Monitor item Condition Status AIR COND SIG A/C switch ON On OFF Off HEATER FAN SW Front blower motor ON On OFF Off Is the inspection result normal?
YES
GO TO STEP 5 .
NO
Check CAN communication system. Refer to TROUBLE DIAGNOSIS FLOW CHART .
- CHECK IPDM E/R INPUT SIGNAL
- Start engine.
- Check "AC COMP REQ" in "DATA MONITOR" mode of "IPDM E/R" using CONSULT.
Monitor item Condition Status AC COMP REQ A/C switch ON On OFF Off Is the inspection result normal?
YES
Inspection End.
NO
Check CAN communication system. Refer to TROUBLE DIAGNOSIS FLOW CHART .