Nissan Altima (L32) 2007-2012 Service Manual: Power control system

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System Diagram

System Description

COOLING FAN CONTROL

IPDM E/R controls cooling fans according to the status of the cooling fan speed request signal received from ECM via CAN communication. Refer to LAN-7, "System Description".

GENERATOR CONTROL

IPDM E/R outputs power generation command signal (PWM signal) to the generator according to the status of the power generation command value signal received from ECM via CAN communication. Refer to PCS-10, "System Description".

    Relay control system
    System Diagram System Description IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input signals from various sensors and the request signal ...

    Signal buffer system
    System Diagram System Description • IPDM E/R reads the status of the oil pressure switch and transmits the oil pressure switch signal to BCM via CAN communication. Refer to PCS-11, "Syst ...

    Other materials:

    Idle air volume learning
     Description Idle Air Volume Learning is a function of ECM to learn the idle air volume that keeps each engine idle speed within the specific range. It must be performed under any of the following conditions: • Each time electric throttle control actuator or ECM is replaced. • Id ...

    ECM branch line circuit
    Diagnosis Procedure INSPECTION 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 (unit side and connector side). - ECM - Harnes ...

    P1551, P1552 battery current sensor
    Description The power generation voltage variable control enables fuel consumption to be decreased by reducing the engine load which is caused by the power generation of the generator. The battery current sensor is installed to the battery cable at the negative terminal. The sensor measures t ...