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TROUBLE DIAGNOSIS ATC-91 C D E F G H I K L M A B ATC 1. CHECK POWER SUPPLY FOR BLOWER MOTOR 1. Disconnect blower motor connector. 2. Turn ignition switch ON. 3. Check voltage between blower motor harness connector M91 OK or NG OK >> GO TO 2. NG >> Check power supply circuit and 15A fuses [Nos. 10 and 11, located in the fuse block (J/B)]. Refer to "FUSE BLOCK - JUNCTION BOX (J/B)" ● If fuses are OK, check harness for open circuit. Repair or replace if necessary. ● If fuses are NG, check harness for short circuit and replace fuse. 2. CHECK BLOWER MOTOR GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Check continuity between blower motor harness connector M91 OK or NG OK >> GO TO 3. NG >> Repair harness or connector. 3. CHECK CIRCUIT CONTINUITY BETWEEN BLOWER MOTOR AND UNIFIED METER AND A/C AMP. 1. Disconnect unified meter and A/C amp. connector. 2. Check continuity between blower motor harness connector M91 OK or NG OK >> GO TO 4. NG >> Repair harness or connector. 1 – Ground : Battery voltage RJIA1997E 3 – Ground : Continuity should exist. RJIA4072E 2 – 38 : Continuity should exist. RJIA4073E |