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:

    Outside key antenna
    Description Detects whether Intelligent Key is outside the vehicle. Integrated in front outside handle (driver side, passenger side) and installed in rear bumper. Component Function Check NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to t ...

    Tire Pressure Monitoring System (TPMS)
    This vehicle is equipped with the TPMS. It monitors tire pressure of all tires except the spare. When the low tire pressure warning light is lit and the "Tire Pressure Low-Add Air" warning appears in the vehicle information display, one or more of your tires is significantly under-inflated. I ...

    P1212 TCS communication line
    Description This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse signals are exchanged between ECM and "ABS actuator and electric unit (control unit)". Be sure to erase the malfunction information such as DTC not only for "ABS actuato ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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