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:

    Engine block heater (if so equipped)
    Engine block heaters are used to assist with cold temperature starting. The engine block heater should be used when the outside temperature is 20F (-7C) or lower. WARNING Do not use your engine block heater with an ungrounded electrical system or a 2-pronged adapter. You can be serious ...

    Diagnosis and repair workflow
    Work Flow OVERALL SEQUENCE DETAILED FLOW 1. GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). 2. CHECK DTC Check DTC. Perform the following procedure if DTC is ...

    Unit disassembly and assembly
    TORQUE CONVERTER Exploded View  Torque converter  Transaxle assembly Disassembly  Remove transaxle assembly. Refer to TM-188, "Exploded View".  Remove torque converter from transaxle assembly. Assembly Note the following, and i ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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