Nissan Juke Service and Repair Manual : Door motor

Diagnosis Procedure

NOTE

:
If all of door motor DTCs are detected, check this circuit.

1.CHECK 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 7.

2.CHECK 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 DOOR MOTOR LIN SIGNAL

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

2. Turn ignition switch ON.

3. Confirm output waveform between A/C auto amp. 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 DOOR MOTOR LIN SIGNAL CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

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

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

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 5.

NO >> Repair harness or connector.

5.CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to GI-42, "Intermittent Incident".

>> INSPECTION END

6.CHECK DOOR MOTOR LIN SIGNAL CIRCUIT FOR SHORT

1. Turn ignition switch OFF.

2. Disconnect following connectors.

- A/C auto amp.

- Air mix door motor
- Mode door motor
- Intake door motor

3. Check continuity between A/C auto amp. harness connector and ground.

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.

7.CHECK 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 >> GO TO 8.

NO >> Repair harness or connector.

8.CHECK DOOR MOTOR POWER SUPPLY CIRCUIT FOR SHORT

1. Disconnect following connectors.

- Air mix door motor
- Mode door motor

2. Check continuity between A/C auto amp. harness connector and ground.

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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