Nissan Sentra manuals

Nissan Sentra Service Manual: Cooling fan

Nissan Sentra Service Manual / Engine / Engine control system / Dtc/circuit diagnosis / Cooling fan

Component Function Check

1.CHECK COOLING FAN FUNCTION

With CONSULT


  1. Turn ignition switch ON.
  2. Perform “FAN” in “ACTIVE TEST” mode of “ENGINE” using CONSULT
  3. Check that cooling fan operates at low speed or high speed.

Without CONSULT


  1. Activate IPDM E/R auto active test and check cooling fan motors operation. Refer to PCS-9, "Diagnosis Description" (with intelligent key), or PCS-37, "Diagnosis Description" (without intelligent key).
  2. Check that cooling fan operates.

Is the inspection result normal? YES >> INSPECTION END

NO >> Proceed to EC-463, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK COOLING FAN MOTOR GROUND CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect cooling fan motor harness connector
  3. Check the continuity between cooling fan motor harness connector and ground.


  1. Also check harness for short to ground.

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

NO >> Repair or replace error-detected parts.

2.CHECK COOLING FAN MOTOR CIRCUIT-1

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


  1. 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 MOTOR

Check cooling fan motor. Refer to EC-464, "Component Inspection (Cooling Fan Motor)".

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

NO >> Replace cooling fan motor. Refer to CO-17, "Removal and Installation".

4.CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to GI-39, "Intermittent Incident".

Is the inspection result normal? YES >> Check IPDM E/R. Refer to PCS-10, "CONSULT Function (IPDM E/R)" (With intelligent key system) or PCS-38, "CONSULT Function (IPDM E/R)" (Without intelligent key system).

NO >> Repair or replace error-detected parts.

Component Inspection (Cooling Fan Motor)

1.CHECK COOLING FAN MOTOR

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. Refer to CO-17, "Removal and Installation".

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 Start engine and warm it up to normal operating temperature. Turn A/C switch and blower fan switch ON. Check the ...

Other materials:

Wheel alignment
Inspection PRELIMINARY INSPECTION WARNING: Always adjust the wheel alignment with the vehicle on a flat surface. NOTE: If the wheel alignment is out of specification, inspect and replace any damaged or worn rear suspension parts before making any adjustments. Check and adjust the wheel ...

Information voice commands
The following voice commands are available for the information functions of the Navigation System: Traffic Fuel Prices Stocks Movie Listings Current Weather Weather Map 5 — day Forecast 6 — hour Forecast For more information about these commands, see the separate Navigatio ...

Compressor
Exploded view With air conditioning Compressor Front Without air conditioning A/c idler pulley A/c idler pulley bracket Compressor Compressor : removal and installation REMOVAL Discharge the refrigerant. Refer to ha-23, "recycle refrigerant". Remove the fr ...

© 2014-2025 Copyright www.nisentra.com