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BLOWER MOTOR CONTROL SYSTEM HAC-213 < DTC/CIRCUIT DIAGNOSIS > [MANUAL A/C (TYPE 2)] C D E F G H J K L M A B HAC N O P 1. Turn ignition switch OFF. 2. Disconnect front blower motor relay. 3. Check voltage between front blower motor relay harness con- nector M107 terminal 5 and ground. Is the inspection result normal? YES >> GO TO 4. NO >> Repair harness or connector. 4. CHECK FRONT BLOWER MOTOR RELAY Turn ignition switch OFF. Check front blower motor relay. Refer to HAC-215, "Front Blower Motor Component Inspection" . Is the inspection result normal? YES >> GO TO 5. NO >> Replace front blower motor relay. 5. CHECK FRONT BLOWER MOTOR RELAY (SWITCH SIDE) CIRCUIT FOR OPEN Check continuity between front blower motor relay harness connec- tor M107 terminal 3 and front blower motor harness connector M62 terminal 2. Is the inspection result normal? YES >> GO TO 6. NO >> Repair harness or connector. 6. CHECK VARIABLE BLOWER CONTROL POWER SUPPLY CIRCUIT FOR OPEN 1. Disconnect variable blower control harness connector. 2. Check continuity between front blower motor relay harness con- nector M107 (A) terminals 3 and variable blower control harness connector M121 (B) terminal 1. Is the inspection result normal? YES >> GO TO 7. NO >> Repair harness or connector. 7. CHECK VARIABLE BLOWER CONTROL SIGNAL CIRCUIT 1. Disconnect front air control connector. 2. Check continuity between front air control harness connector M177 (B) terminal 40 and variable blower control harness con- nector M121 (A) terminal 2. Is the inspection result normal? YES >> GO TO 8. NO >> Repair harness or connector. 8. CHECK FRONT BLOWER MOTOR RELAY (COIL SIDE) POWER SUPPLY 5 - Ground : Battery voltage WJIA1886E 3 - 2 : Continuity should exist. WJIA1360E 3 - 1 : Continuity should exist. AWIIA1387ZZ 40 - 2 : Continuity should exist. AWIIA0537ZZ |