Nissan Juke Service and Repair Manual : Cooling fan

Component Function Check

1.CHECK COOLING FAN FUNCTION

1. Turn ignition switch ON.With CONSULT-III


1. Turn ignition switch ON.

2. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III.

3. Touch “LOW” and “Hi” on the CONSULT-III screen.

4. Check that cooling fan operates at each speed.

1. Perform IPDM E/R auto active test and check cooling fan motor operation.Without CONSULT-III


1. Perform IPDM E/R auto active test and check cooling fan motor operation. Refer to PCS-12, "Diagnosis Description" (WITH I-KEY) or PCS-43, "Diagnosis Description" (WITHOUT I-KEY).

2. Check that cooling fan operates at each speed.

Is the inspection result normal? YES >> INSPECTION END

NO >> Refer to EC-774, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connection E21 and E38. Refer to Ground Inspection in GI-44, "Circuit Inspection".

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

NO >> Repair or replace ground connection.

2.CHECK COOLING FAN MOTOR CIRCUIT

1. Disconnect cooling fan motor harness connector.

2. Check the continuity between IPDM E/R harness connector and cooling fan motor harness connector.

3. Check the continuity between cooling fan motor harness connector and


3. Check the continuity between cooling fan motor harness connector and ground.


4. Also check harness for short to ground and short to power.


4. Also check harness for short to ground and short to power.

YES or NO YES >> GO TO 4.

NO >> GO TO 3.

3.DETECT MALFUNCTIONING PART

Check the following.

• Harness for open or short between cooling fan motor and IPDM E/R • Harness for open or short between cooling fan motor and ground

>> Repair open circuit or short to ground or short to power in harness or connectors.

4.CHECK COOLING FAN MOTOR

Refer to EC-775, "Component Inspection".

YES or NO YES >> GO TO 5.

NO >> Replace cooling fan motor.

5.CHECK INTERMITTENT INCIDENT

Perform GI-42, "Intermittent Incident".

YES or NO YES >> Replace IPDM E/R. Refer to PCS-34, "Exploded View" (WITH I-KEY) or PCS-63, "Exploded View" (WITHOUT I-KEY).

NO >> Repair or replace harness or connector.

Component Inspection

1.CHECK COOLING FAN MOTOR

1. Turn ignition switch OFF.

2. Disconnect cooling fan motor harness connector E62.

3. Supply cooling fan motor terminals with battery voltage and check operation.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace cooling fan motor.

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