Nissan Maxima Service and Repair Manual: U1000 CAN comm circuit

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 malfunction 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 and CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

NOTE: Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.

Then wait at least 10 seconds before performing the next test.

1.CHECK DTC DETECTION

With CONSULT

  1.  Turn ignition switch ON.
  2.  Start engine and wait for at least 6 seconds.
  3.  Perform "Self Diagnostic Results" in "TRANSMISSION".

With GST

Follow the procedure "With CONSULT".

Diagnosis Procedure

1.CHECK CAN COMMUNICATION CIRCUIT

With CONSULT

  1.  Turn ignition switch ON and start engine.
  2.  Perform "Self Diagnostic Results" in "TRANSMISSION".
    U0100 lost communication (ECM A)
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PREPARATION BEFORE WORK If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least ...

    U1010 control unit (CAN)
    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 excelle ...

    Other materials:

    IPDM E/R (intelligent power distribution module engine room)
    Reference Value VALUES ON THE DIAGNOSIS TOOL TERMINAL LAYOUT PHYSICAL VALUES Fail Safe CAN COMMUNICATION CONTROL When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to nor ...

    Wiring diagram
    COLOR DISPLAY Wiring Diagram - With BOSE audio system With Navigation System ...

    Seatback pockets
    The seatback pockets are located on the back of the driver's and passenger's seats. The pockets can be used to store maps. WARNING To ensure proper operation of the passenger's NISSAN Advanced Air Bag System, please observe the following items: Do not allow a passenger in the rear se ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2020 Copyright www.nimainfo.com
    0.013