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HAC-28 < COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER] MODE DOOR MOTOR 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 19, 20 and ground. Is the inspection result normal? YES >> Replace A/C auto amp. Refer to NO >> Repair or replace harness as necessary. 3. CHECK A/C AUTO AMP. FOR GROUND AND POWER 1. Press the mode switch to the D/F ( ) mode. 2. Check voltage between A/C auto amp. harness connector M49 terminal 19 and terminal 20 while pressing the mode switch to ) mode. Is the inspection result normal? YES >> GO TO 4. NO >> Replace A/C auto amp. Refer to VTL-7, "Removal and Installation" 4. CHECK MODE DOOR MOTOR AND 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 19 and terminal 20. Is the inspection result normal? YES >> GO TO 6. NO >> GO TO 5. 5. CHECK MODE DOOR MOTOR CIRCUITS FOR OPEN 1. Disconnect the mode door motor harness connector. 2. Check continuity between A/C auto amp. harness connector M49 (A) terminal 19, 20 and the mode door motor harness con- nector M142 (B) terminal 1, 6. Is the inspection result normal? YES >> Replace mode door motor. Refer to . NO >> Repair or replace harness as necessary. 6. CHECK A/C AUTO AMP. FOR PBR POWER AND GROUND 19 - Ground : Continuity should not exist. 20 - Ground : Continuity should not exist. AWIIA0096ZZ Connector Terminals Condition Voltage (Approx.) (+) (-) A/C auto amp.: M49 19 20 Press switch Battery AWIIA0097ZZ Continuity should exist. AWIIA0098ZZ 6 - 19 : Continuity should exist. 1 - 20 : Continuity should exist. AWIIA0225ZZ 2010 Pathfinder |