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 “FAN DUTY CONTROL” in “ACTIVE TEST” mode of “ENGINE” using CONSULT-III.

3. Check that cooling fan speed varies according to the percentage.

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


1. Activate IPDM E/R auto active test and check cooling fan motors operation. Refer to PCS-12, "Diagnosis Description".

2. Check that cooling fan operates.

Is the inspection result normal? YES >> INSPECTION END

NO >> Proceed to EC-420, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK COOLING FAN CONTROL MODULE POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect cooling fan control nodule harness connector.

3. Turn ignition switch ON.

4. Check the voltage between cooling fan control nodule harness connector and ground.

Is the inspection result normal?


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

NO >> GO TO 2.

2.CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect cooling fan relay harness connector.

3. Check the continuity between cooling fan control nodule harness connector and cooling fan relay harness connector.

4. Also check harness for short to ground.


4. Also check harness for short to ground.

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

NO >> Repair or replace error-detected parts.

3.CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT

1. Disconnect IPDM E/R harness connector.

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

3. Also check harness for short to ground.


3. Also check harness for short to ground.

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

NO >> Repair or replace error-detected parts.

4.CHECK COOLING FAN RELAY

Check cooling fan relay. Refer to EC-422, "Component Inspection (Cooling Fan Relay)".

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.

NO >> Replace cooling fan relay. Refer to PG-7, "Standardized Relay".

5.CHECK COOLING FAN CONTROL MODULE GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check the continuity between cooling fan control nodule harness connector and ground.

3. Also check harness for short to power.


3. Also check harness for short to power.

Is the inspection result normal? YES >> GO TO 6.

NO >> Repair or replace error-detected parts.

6.CHECK COOLING FAN CONTROL SIGNAL CIRCUIT

1. Disconnect IPDM E/R harness connector.

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

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


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

Is the inspection result normal? YES >> GO TO 7.

NO >> Repair or replace error-detected parts.

7.CHECK COOLING FAN CONTROL MODULE OUTPUT SIGNAL CIRCUIT

1. Reconnect all harness connectors disconnected.

2. Disconnect cooling fan control module harness connector.

3. Turn ignition switch ON.

4. Check the voltage between cooling fan control module terminals and ground.Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 8.

NO >> Repair or replace error-detected parts.

8.CHECK COOLING FAN MOTORS -1 AND -2

Check the cooling fan motor. Refer to EC-422, "Component Inspection (Cooling Fan Motor)".

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

NO >> Replace cooling motor. Refer to CO-20, "Exploded View".

Component Inspection (Cooling Fan Motor)

1.CHECK COOLING FAN MOTOR

1. Turn ignition switch OFF.

2. Disconnect cooling fan control module harness connector.

3. Supply cooling fan control module harness connector terminals with battery voltage as per the following, and check operation.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace malfunctioning cooling fan motor. Refer to CO-20, "Exploded View".

Component Inspection (Cooling Fan Relay)

1.CHECK COOLING FAN RELAY

1. Turn ignition switch OFF.

2. Remove cooling fan relay.

3. Check the continuity between cooling fan relay terminals under the following conditions


Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace cooling fan relay. Refer to PG-7, "Standardized Relay".

    Electrical load signal
    Description The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred via the CAN communication line. Component Function Check 1.CHECK REAR WIN ...

    Refrigerant pressure sensor
    Component Function Check 1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION 1. Start engine and warm it up to normal operating temperature. 2. Turn A/C switch and blower fan switch ON. 3. Check ...

    Other materials:

    Component parts
    Component Parts Location 1. Parking brake switch 2. Seat belt buckle switch (passenger side) 3. Occupant detection unit (Under the passenger seat cushion pad) 4. ABS actuator and electric unit (control unit) Refer to BRC-97, "Component Parts Location" (with ESP). Refer to B ...

    Diagnosis and repair workflow
    Work Flow OVERALL SEQUENCE DETAILED FLOW 1.GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the “Diagnostic Work Sheet”. (Refer to EC-539, "Diagnostic Work Sh ...

    Connector Symbols
    Most of connector symbols in wiring diagrams are shown from the terminal side. • Connector symbols shown from the terminal side are enclosed by a single line and followed by the direction mark. • Connector symbols shown from the harness side are enclosed by a double line and followed by the ...