Nissan Versa (N17): Cooling fan

Nissan Versa 2nd generation (N17) Service Manual / Engine / Engine control system (EC) / Cooling fan

Component Function Check

1.CHECK COOLING FAN FUNCTION

With CONSULT

  1. Turn ignition switch ON.
  2. Perform "COOLING FAN" in "ACTIVE TEST" mode with CONSULT.
  3. Touch "LOW" and "Hi" on the CONSULT screen.
  4. Check that cooling fan operates.

NOTE: The cooling fan operates at high speeds even when "LOW" is selected in CONSULT "ACTIVE TEST". (For single connector cooling fan without A/C models)

Without CONSULT

  1. Perform IPDM E/R auto active test and check cooling fan motor operation. Refer to PCS, "Diagnosis Description".
  2. Check that cooling fan operates.

Is the inspection result normal?

YES >> INSPECTION END

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

Diagnosis Procedure

FOR SINGLE CONNECTOR COOLING FAN WITHOUT A/C MODELS

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

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

2.CHECK COOLING FAN MOTOR

Refer to EC, "Component Inspection (Cooling Fan Motor)".

Is the inspection result normal?

YES >> GO TO 3.

NO >> Replace cooling fan motor. Refer to CO, "Removal and Installation".

3.CHECK INTERMITTENT INCIDENT

Perform GI, "Intermittent Incident".

Is the inspection result normal?

YES >> Replace IPDM E/R. Refer to PCS, "Removal and Installation" (WITH I-KEY) or PCS, "Removal and Installation" (WITHOUT I-KEY).

NO >> Repair or replace harness or connector.

EXCEPT FOR SINGLE CONNECTOR COOLING FAN WITHOUT A/C MODELS

1.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 relay harness connector and cooling fan motor harness connector.
  4. Check the continuity between cooling fan motor harness connector and ground. 
  5. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

2.CHECK COOLING FAN RELAY CIRCUIT

  1. Disconnect cooling fan relay harness connector.
  2. Disconnect IPDM E/R harness connector.
  3. Check the continuity between IPDM E/R harness connector and cooling fan relay harness connector.
  4. Check the continuity between cooling fan relay harness connector and ground. 
  5. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

3.CHECK COOLING FAN RELAY

Refer to EC, "Component Inspection (Cooling Fan Relay)".

YES or NO

YES >> GO TO 4.

NO >> Replace cooling fan relay.

4.CHECK COOLING FAN MOTOR

Refer to EC, "Component Inspection (Cooling Fan Motor)".

YES or NO

YES >> GO TO 5.

NO >> Replace cooling fan motor. Refer to CO, "Removal and Installation".

5.CHECK INTERMITTENT INCIDENT

Perform GI, "Intermittent Incident".

YES or NO

YES >> Replace IPDM E/R. Refer to PCS, "Removal and Installation" (WITH I-KEY) or PCS, "Removal and Installation" (WITHOUT I-KEY).

NO >> Repair or replace harness or connector.

Component Inspection (Cooling Fan Motor)

1.CHECK COOLING FAN MOTOR

  1. Turn ignition switch OFF.
  2. Disconnect cooling fan motor harness connector.
  3. Supply cooling fan motor terminals with battery voltage and check operation. 

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace cooling fan motor. Refer to CO, "Removal and Installation".

Component Inspection (Cooling Fan Relay)

1.CHECK COOLING FAN RELAY

  1. Turn ignition switch OFF.
  2. Remove cooling fan relay.
  3. Check continuity between cooling fan relay terminals under the following conditions.                                             

CHECK COOLING FAN RELAY

Is the inspection result normal?

YES >> INSPECTION END

NO >> Replace cooling fan relay.

Clutch pedal position switch

Component Function Check 1.CHECK CLUTCH PEDAL POSITION SWITCH FUNCTION Turn ignition switch ON. Check the voltage between ECM harness connector and ground.  Is the inspection result ...

Electrical load signal

Description The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred to ECM through the CAN communication line. ...

Other materials:

Precautions when starting and driving
WARNING Do not leave children or adults who would normally require the assistance of others alone in your vehicle. Pets should also not be left alone. They could accidentally injure themselves or others through inadvertent operation of the vehicle. Also, on hot, sunny days, tempera ...

Push-button ignition switch (if so equipped)
WARNING Do not operate the push-button ignition switch while driving the vehicle except in an emergency. (The engine will stop when the ignition switch is pushed 3 consecutive times in quick succession or the ignition switch is pushed and held for more than 2 seconds.) If the engine stops ...

Categories


© 2017-2025 Copyright www.niveguide.com
0.0082