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 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 two 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.

CAN Communication Signal Chart. Refer to LAN-14, "How to Use CAN Communication Signal Chart".

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

Diagnosis Procedure

1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT

  1. Turn ignition switch ON and wait for 2 or more seconds.
  2. Using CONSULT, perform "SELF-DIAGNOSIS RESULTS" of HVAC
    DTC/circuit diagnosis
    ...

    U1010 control unit (CAN)
    Description Initial diagnosis of A/C auto amp. DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT Using CONSULT, perform "SELF-DIAGNOSIS RESULT ...

    Other materials:

    ECU diagnosis information
    A/C AUTO AMP Reference Value VALUES ON THE DIAGNOSIS TOOL CONSULT MONITOR ITEM A/C AUTO AMP. HARNESS CONNECTOR TERMINAL LAYOUT TERMINALS AND REFERENCE VALUES FOR A/C AUTO AMP. Fail-Safe FAIL-SAFE FUNCTION If a communication error exists between the A/C auto amp., the AV ...

    Compass
    Description DESCRIPTION With the ignition switch in the ON position, and the mode (N) switch ON, the compass display will indicate the direction the vehicle is heading. Vehicle direction is displayed as follows: N: north E: east S: south W: west ZONE VARIATION SETTING PROCEDURE ...

    Difference between predicted and actual distances
    The displayed guidelines and their locations on the ground are for approximate reference only. Objects on uphill or downhill surfaces or projecting objects will be actually located at distances different from those displayed in the monitor relative to the guidelines (refer to illustrations). ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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