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AIR MIX DOOR MOTOR HAC-33 < COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER] C D E F G H J K L M A B HAC N O P 4. CHECK AIR MIX DOOR MOTOR (DRIVER) CIRCUITS FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect the A/C auto amp. harness connector. 3. Check continuity between A/C auto amp. harness connector M49 terminal 17 and terminal 18. Is the inspection result normal? YES >> GO TO 6. NO >> GO TO 5. 5. CHECK AIR MIX DOOR MOTOR (DRIVER) CIRCUITS FOR OPEN 1. Disconnect the air mix door motor (driver) harness connector. 2. Check continuity between A/C auto amp. harness connector M49 (A) terminal 17, 18 and the air mix door motor (driver) har- ness connector M147 (B) terminal 1, 6. Is the inspection result normal? YES >> Replace air mix door motor (driver). Refer to . NO >> Repair or replace harness as necessary. 6. CHECK A/C AUTO AMP. FOR PBR POWER AND GROUND 1. Reconnect A/C auto amp. harness connector. 2. Turn ignition switch ON. 3. Check voltage between A/C auto amp. harness connector M50 (A) terminal 28 and M49 (B) terminal 3. Is the inspection result normal? YES >> GO TO 8. NO >> GO TO 7. 7. CHECK PBR REFERENCE VOLTAGE CIRCUIT FOR SHORT TO GROUND 1. Turn ignition switch OFF. 2. Disconnect the A/C auto amp. harness connector. 3. Check continuity between A/C auto amp. harness connector M50 terminal 28 and ground. Is the inspection result normal? YES >> Replace A/C auto amp. Refer to NO >> Repair or replace harness as necessary. 8. CHECK PBR REFERENCE VOLTAGE AND GROUND CIRCUITS Continuity should exist. AWIIA0116ZZ 17 - 1 : Continuity should exist. 18 - 6 : Continuity should exist. AWIIA0117ZZ Connector Terminals Voltage (Ap- prox.) (+) (-) A/C auto amp.: M50, M49 28 3 5V AWIIA0118ZZ Continuity should not exist. AWIIA0119ZZ |