Nissan Juke Service and Repair Manual : Rear window defogger switch

With auto A/C

WITH AUTO A/C : Description

• The rear window defogger is operated by turning the rear window defogger switch ON.

• The indicator lamp in the rear window defogger switch illuminates when the rear window defogger is operating.

WITH AUTO A/C : Component Function Check

1.CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

Check that the indicator lamp of rear window defogger illuminates when rear window defogger switch ON.

Is the inspection result normal? YES >> Rear window defogger switch function is OK.

NO >> Refer to DEF-26, "WITH AUTO A/C : Diagnosis Procedure"

WITH AUTO A/C : Diagnosis Procedure

1.CHECK MULTI DISPLAY UNIT (REAR WINDOW DEFOGGER SWITCH)

Does multi display unit (rear window defogger switch) operate normally? • Auto A/C (4WD models). Refer to HAC-29, "Description".

• Auto A/C (2WD models). Refer to HAC-121, "Description".

Is the inspection result normal? YES >> INSPECTION END NO >> Replace multi display unit (rear window defogger switch).

Without auto A/C

WITHOUT AUTO A/C : Description

• The rear window defogger is operated by turning the rear window defogger switch ON.

• The indicator lamp in the rear window defogger switch illuminates when the rear window defogger is operating.

WITHOUT AUTO A/C : Component Function Check

1.CHECK FUNCTION

Check (REAR DEF SW) in BCM “DATA MONITOR”mode using CONSULT-III when rear window defogger switch is ON.

Is the inspection result normal? YES >> Rear window defogger switch function is OK.

NO >> Refer to DEF-26, "WITHOUT AUTO A/C : Diagnosis Procedure"

WITHOUT AUTO A/C : Diagnosis Procedure

1.CHECK BCM OUTPUT SIGNAL

1. Turn ignition switch OFF.

2. Disconnect A/C control connector.

3. Check voltage between A/C control harness connector and ground.

Is the inspection result normal?


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

NO >> GO TO 2.

2.CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between BCM harness connector and A/C control harness connector.

3. Check continuity between BCM harness connector and ground.


3. Check continuity between BCM harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> Replace BCM. Refer to BCS-93, "Removal and Installation" (With Intelligent Key system) or BCS- 161, "Removal and Installation" (Without Intelligent Key system).

NO >> Repair or replace harness.

3.CHECK GROUND CIRCUIT

Check continuity between A/C control harness connector and ground.

Is the inspection result normal?


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

NO >> Repair or replace harness.

4.CHECK REAR WINDOW DEFOGGER SWITCH

Refer to DEF-27, "WITHOUT AUTO A/C : Component Inspection".

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

NO >> Replace A/C control. Refer to HAC-239, "Removal and Installation" (4WD models) or HAC-304, "Removal and Installation" (2WD models).

5.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

Is the inspection result normal? >> INSPECTION END

WITHOUT AUTO A/C : Component Inspection

1.CHECK REAR WINDOW DEFOGGER SWITCH

1. Turn ignition switch OFF.

2. Disconnect A/C control connector.

3. Check continuity between A/C control terminals.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace A/C control. Refer to HAC-239, "Removal and Installation" (4WD models) or HAC-304, "Removal and Installation" (2WD models).

Without A/C

WITHOUT A/C : Description

• The rear window defogger is operated by turning the rear window defogger switch ON.

• The indicator lamp in the rear window defogger switch illuminates when the rear window defogger is operating.

WITHOUT A/C : Component Function Check

1.CHECK FUNCTION

Check (REAR DEF SW) in BCM “DATA MONITOR”mode using CONSULT-III when rear window defogger switch is ON.

Is the inspection result normal? YES >> Rear window defogger switch function is OK.

NO >> Refer to DEF-28, "WITHOUT A/C : Diagnosis Procedure"

WITHOUT A/C : Diagnosis Procedure

1.CHECK BCM OUTPUT SIGNAL

1. Turn ignition switch OFF.

2. Disconnect heater control connector.

3. Check voltage between heater control harness connector and groun

Is the inspection result normal?


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

NO >> GO TO 2.

2.CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between BCM harness connector and heater control harness connector.

3. Check continuity between BCM harness connector and groun


3. Check continuity between BCM harness connector and groun

Is the inspection result normal?


Is the inspection result normal?

YES >> Replace BCM. Refer to BCS-161, "Removal and Installation".

NO >> Repair or replace harness.

3.CHECK GROUND CIRCUIT

Check continuity between heater control harness connector and ground.

Is the inspection result normal?


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

NO >> Repair or replace harness.

4.CHECK REAR WINDOW DEFOGGER SWITCH

Refer to DEF-29, "WITHOUT A/C : Component Inspection".

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

NO >> Replace heater control. Refer to HAC-331, "Removal and Installation".

5.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

Is the inspection result normal? >> INSPECTION END

WITHOUT A/C : Component Inspection

1.CHECK REAR WINDOW DEFOGGER SWITCH

1. Turn ignition switch OFF.

2. Disconnect heater control connector.

3. Check continuity between heater control terminals.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace heater control. Refer to HAC-331, "Removal and Installation".

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