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HAC-142 < SYMPTOM DIAGNOSIS > [AUTOMATIC AIR CONDITIONING] COMPRESSOR DOES NOT OPERATE COMPRESSOR DOES NOT OPERATE Description INFOID:0000000009652592 SYMPTOM Compressor does not operate. Diagnosis Procedure INFOID:0000000009652593 NOTE: any malfunction result or 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 MAGNET CLUTCH OPERATION Check magnet clutch. Refer to HAC-131, "Component Function Check" Does it operate normally? YES >> GO TO 2. NO >> Repair or replace malfunctioning parts. 2. CHECK REFRIGERANT PRESSURE SENSOR Check refrigerant pressure sensor. Refer to EC-442, "Component Function Check" . Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace malfunctioning parts. 3. CHECK A/C ON SIGNAL Check A/C ON signal. Refer to HAC-121, "Component Function Check" Is inspection result normal? YES >> GO TO 4. NO >> Repair or replace malfunctioning parts. 4. CHECK BLOWER FAN ON SIGNAL Check blower fan ON signal. Refer to HAC-123, "Component Function Check" Is the inspection result normal? YES >> GO TO 5. NO >> Repair or replace malfunctioning parts 5. CHECK BCM OUTPUT SIGNAL With CONSULT 1. Select “DATA MONITOR” mode of “ECM” using CONSULT. 2. Select “AIR COND SIG” and “HEATER FAN SW”, and check status under the following conditions. Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-36, "Removal and Installation" NO >> Replace BCM. Refer to BCS-98, "Removal and Installation" Monitor item Condition Status AIR COND SIG A/C switch OFF (A/C indicator: OFF) Off ON (A/C indicator: ON) On HEATER FAN SW Blower motor OFF Off ON On |