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:

    Intelligent key system symptoms
    Symptom Table ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DO NOT OPERATE NOTE: Before performing the diagnosis in the following table, check "WORK FLOW". Refer to DLK-9, "Work Flow". Check that vehicle is under the condition shown in "Conditions of vehicle" before starting diagn ...

    Steering switch
    Removal and Installation REMOVAL Remove the driver airbag module. Refer to SR-12, "Removal and Installation". Remove the steering wheel audio control switch screws (A). Release the steering wheel audio control switch harness clips (B). Remove the steering wheel audio control switche ...

    Key slot illumination
    Description Blinks when Intelligent Key insertion is required. Component Function Check 1. CHECK FUNCTION With CONSULT Check key slot illumination KEY SLOT ILLUMI in Active Test mode. Diagnosis Procedure 1. CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL Check voltage between key slot connector ...

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    Nissan Maxima Service and Repair Manual

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