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:

    B257B, B257C ambient sensor
    Description COMPONENT DESCRIPTION Ambient Sensor The ambient sensor (1) is installed to the front bumper reinforcement. It detects ambient temperature and converts it into a resistance value which is then input into the A/C auto amp. Ambient Sensor Circuit AMBIENT TEMPERATUR ...

    Warning lamp
    Description  Warning lamp is built in combination meter.  Intelligent Key system malfunction is reported to the driver by the warning lamp illumination. Component Function Check 1.CHECK FUNCTION  Perform "INDICATOR" in the "Active Test" mode with CON ...

    B1113 - B1115 satellite sensor RH
    Description DTC B1113 - B1115 SATELLITE SENSOR RH The satellite sensor RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit willmonitor the satellite sensor RH for internal failures and its circuits for communication errors. PART LOCATION DTC Logic DTC DETECTI ...

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