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MAGNET CLUTCH HAC-49 < DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER] C D E F G H J K L M A B HAC N O P MAGNET CLUTCH System Description INFOID:0000000009882466 SYSTEM DESCRIPTION The front air control controls compressor operation based on ambient and intake temperature and a signal from ECM. Low Temperature Protection Control The front air control will turn the compressor ON or OFF as determined by a signal detected by the intake sen- sor and the ambient sensor. When intake air temperature is higher than the preset value, the compressor turns ON. The compressor turns OFF when intake air temperature is lower than the preset value. That preset value is dependent on the ambi- ent temperature, refer to the following table. Magnet Clutch Component Function Check INFOID:0000000009882467 INSPECTION FLOW 1. CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - MAGNET CLUTCH 1. Turn ignition switch ON. 2. Press the A/C switch. ). 4. Confirm that the compressor clutch engages (sound or visual inspection). (Discharge air and blower speed will depend on ambient, in-vehicle and set temperatures.) Is the inspection result normal? YES >> Inspection End. NO >> Go to diagnosis procedure. Refer to HAC-49, "Magnet Clutch Diagnosis Procedure" . Magnet Clutch Diagnosis Procedure INFOID:0000000009882468 Regarding Wiring Diagram information, refer to HAC-71, "Wiring Diagram - Automatic Air Conditioner" DIAGNOSTIC PROCEDURE FOR MAGNET CLUTCH Ambient temperature °C (°F) Compressor ON intake temperature °C ( °F) Compressor OFF intake temperature °C (°F) 0 (32) 5.5 (42) 5.0 (41) 10 (50) 5.5 (42) 5.0 (41) 20 (68) 5.5 (42) 5.0 (41) 30 (86) 4.0 (39) 3.5 (38) 40 (104) 3.5 (38) 3.0 (37) 50 (122) 3.5 (38) 3.0 (37) |