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MAGNET CLUTCH HAC-219 < DTC/CIRCUIT DIAGNOSIS > [MANUAL A/C (TYPE 2)] C D E F G H J K L M A B HAC N O P 4. CHECK MAGNET CLUTCH CIRCUIT Check for operation sound when applying battery voltage direct cur- rent to terminal. YES >> Replace IPDM E/R. Refer to . NO >> Replace magnet clutch. Refer to Installation for Compressor Clutch" 5. CHECK BCM INPUT (COMPRESSOR ON) SIGNAL Check compressor ON/OFF signal. Refer to HAC-194, "CONSULT-III Function (BCM - AIR CONDITIONER)" . Is the inspection result normal? YES >> GO TO 8. NO >> GO TO 6. 6. CHECK CIRCUIT CONTINUITY BETWEEN BCM AND FRONT AIR CONTROL 1. Turn ignition switch OFF. 2. Disconnect BCM connector and front air control connector. 3. Check continuity between BCM harness connector M18 (A) ter- minal 27 and front air control harness connector M176 (B) termi- nal 12. 4. Check continuity between BCM harness connector M18 (A) ter- minal 27 and ground. Is the inspection result normal? YES >> GO TO 7. NO >> Repair harness or connector. 7. CHECK VOLTAGE FOR FRONT AIR CONTROL (A/C COMPRESSOR ON SIGNAL) 1. Reconnect BCM connector and front air control connector. 2. Turn ignition switch ON. 3. Check voltage between front air control harness connector M176 terminal 12 and ground. Is the inspection result normal? YES >> GO TO 8. NO-1 >> If the voltage is approx. 5V when A/C switch is ON, replace front air control. Refer to . SJIA0197E A/C SW ON : AIR COND SW ON A/C SW OFF : AIR COND SW OFF 27 - 12 Continuity should exist. 27 - ground Continuity should not exist. AWIIA0542ZZ Terminals Condition Voltage (+) (-) front air con- trol connec- tor Terminal No. M176 12 Ground A/C switch: ON Approx. 0V A/C switch: OFF Approx. 5V AWIIA0543ZZ |