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INTAKE DOOR MOTOR HAC-39 < DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER] C D E F G H J K L M A B HAC N O P COMPONENT DESCRIPTION Intake door motor The intake door motor is attached to the intake unit. It rotates so that air is drawn from inlets set by the A/C auto amp. Motor rotation is conveyed to a lever which activates the intake door. Intake Door Motor Component Function Check INFOID:0000000006243641 INSPECTION FLOW 1. CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - REC ( ) 1. Press the mode switch to vent mode( ). 2. Press REC ( ) switch. The REC ( )indicator should illuminate. 3. Press REC ( ) switch again. The REC ( ) indicator should go out. 4. Listen for intake door position change (you should hear blower sound changes slightly). YES >> Inspection End. NO >> Go to diagnosis procedure. Refer to HAC-87, "Intake Sensor Diagnosis Procedure" Intake Door Motor Diagnosis Procedure INFOID:0000000006243642 Regarding Wiring Diagram information, refer to HAC-95, "Wiring Diagram - Automatic" SYMPTOM: • Intake door does not change. • Intake door motor does not operate normally. 1. CHECK INTAKE DOOR MOTOR CIRCUITS FOR OPEN AND SHORT TO GROUND 1. Turn ignition switch OFF. 2. Disconnect the A/C auto amp. harness connector M49 and the intake door motor harness connector M58. 3. Check continuity between A/C auto amp. harness connector M49 terminals 21, 22 and the intake door motor harness connector M58 terminals 1, 6. 4. Check continuity between A/C auto amp. harness connector M49 terminals 21, 22 and ground. Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace harness as necessary. 2. CHECK A/C AUTO AMP. FOR INTAKE AIR DOOR MOTOR POWER AND GROUND WJIA1107E Connector Terminal Connector Terminal Continuity M49 21 M58 6 Yes 22 1 Connector Terminal — Continuity M49 21 Ground No 22 2011 Pathfinder |