Nissan Maxima Service and Repair Manual: Can communication

System Description

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

    Automatic speed control device (ASCD)
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *: This signal is sent to the ECM via the CAN communication line BASIC ASCD SYSTEM Refer to Owner's Manual for ASCD operating i ...

    Cooling fan control
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *1: The ECM determines the start signal status by the signals of engine speed and battery voltage. *2: This signal is sent to ...

    Other materials:

    ECM branch line circuit
    Diagnosis Procedure 1.CHECK CONNECTOR  Turn the ignition switch OFF.  Disconnect the battery cable from the negative terminal.  Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). &nb ...

    RGB AREA (YS) signal circuit
    Description Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display unit. Diagnosis Procedure 1.CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect display unit connector M141 and AV control unit conne ...

    Body side trim
    Exploded View Front pillar finisher Dash side lower finisher Front kicking plate Front sill cover Center pillar lower finisher Rear sill cover Rear kicking plate Rear body side welt Rear pillar finisher Screw cover Center pillar upper finisher Front seat belt adju ...

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    Nissan Maxima Service and Repair Manual

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