Nissan Juke Service and Repair Manual : B263D, B263E, B263F intake door motor

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.With CONSULT-III


1. Turn ignition switch ON.

2. Select Self Diagnostic Result mode of HVAC using CONSULT-III.

3. Check DTC.

Is DTC detected? YES >> Refer to HAC-159, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK INTAKE DOOR MOTOR POWER SUPPLY

1. Turn ignition switch ON.

2. Check voltage between intake door motor harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 2.

NO >> GO TO 5.

2.CHECK INTAKE DOOR MOTOR GROUND CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect intake door motor and A/C auto amp. connector.

3. Check continuity between intake door motor harness connector and A/C auto amp. harness connector.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> Repair harness or connector.

3.CHECK INTAKE DOOR MOTOR LIN SIGNAL

1. Connect intake door motor and A/C auto amp. connector.

2. Turn ignition switch ON.

3. Confirm output waveform between intake door motor harness connector and ground using oscilloscope.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 4.

NO >> GO TO 6.

4.CHECK INSTALLATION OF INTAKE DOOR MOTOR

Check intake door motor is properly installed. Refer to HAC-195, "Exploded View".

Is the inspection result normal? YES >> Replace intake door motor. Refer to HAC-196, "INTAKE DOOR MOTOR : Removal and Installation".

NO >> Repair or replace malfunctioning part.

5.CHECK INTAKE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect intake door motor and A/C auto amp. connector.

3. Check continuity between intake door motor harness connector and A/C auto amp. harness connector.

Is the inspection result normal?


Is the inspection result normal? YES >> Replace A/C auto amp. Refer to HAC-188, "Removal and Installation".

NO >> Repair harness or connector.

6.CHECK INTAKE DOOR MOTOR LIN SIGNAL CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect intake door motor and A/C auto amp. connector.

3. Check continuity between intake door motor harness connector and A/C auto amp. harness connector.

Is the inspection result normal?


Is the inspection result normal? YES >> Replace A/C auto amp. Refer to HAC-188, "Removal and Installation".

NO >> Repair harness or connector.

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