Nissan Juke Service and Repair Manual : Cooling fan control

Cooling fan control : System Diagram

Cooling fan control : System Description


Cooling fan control : System Description

INPUT/OUTPUT SIGNAL CHART

*: The ECM determines the start signal status by the signals of engine speed


*: The ECM determines the start signal status by the signals of engine speed and battery voltage.

SYSTEM DESCRIPTION

ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, A/C ON signal and refrigerant pressure.

Cooling fan control signal is sent to IPDM E/R from ECM by CAN communication line. Then, IPDM E/R sends ON/OFF pulse duty signal to cooling fan control module. Corresponding to this ON/OFF pulse duty signal, cooling fan control module gives cooling fan motor operating voltage to cooling fan motors. Cooling fan speed is controlled by duty cycle of cooling fan motor operating voltage sent from cooling fan control module.

    Air conditioning cut control
    Air conditioning cut control : System Diagram Air conditioning cut control : System Description INPUT/OUTPUT SIGNAL CHART *: ECM determines the start signal status by the signals of engine spe ...

    Starter motor drive control
    Starter motor drive control : System Diagram Starter motor drive control : System DescriptionINPUT/OUTPUT SIGNAL CHART INPUT/OUTPUT SIGNAL CHART *: With Intelligent Key system SYSTEM DESCRIPT ...

    Other materials:

    LAN System can system (type 7)
    DTC/CIRCUIT DIAGNOSIS Main line between IPDM-E and DLC circuit Diagnosis Procedure 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the following terminals and connectors for damage, bend and loose connection (connector s ...

    B2614 ACC relay circuit
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATION PROCEDURE 1. Turn the power supply position to ACC under the following conditions, and wait for 2 second or more. CVT models - Selector lever is in the P or N position - Do not depress brake pedal M/T m ...

    Engine control system symptoms
    Symptom Table SYSTEM BASIC ENGINE CONTROL SYSTEM 1 - 6: The numbers refer to the order of inspection. (continued on next table) SYSTEM ENGINE MECHANICAL & OTHER 1 - 6: The numbers refer to the order of inspection ...