Nissan Maxima Service and Repair Manual: U1000 can comm circuit

Description

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicles are equipped with many electronic control units, 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.

CAN Communication Signal Chart. Refer to LAN-24, "CAN Communication Signal Chart".

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

Diagnosis Procedure

1. PERFORM SELF DIAGNOSTIC

  1. Turn ignition switch ON and wait for 2 seconds or more.
  2. Check "Self Diagnostic Result".
    DTC/circuit diagnosis
    ...

    U1010 control unit (CAN)
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1. REPLACE BCM When DTC [U1010] is detected, replace BCM. Special Repair Requirement 1. REQUIRED WORK WHEN REPLACING BCM Initialize NVIS b ...

    Other materials:

    Hood
    Pull the hood lock release handle located below the driver side instrument panel. The hood will spring up slightly. Push the lever at the front of the hood to the side as illustrated with your fingertips and raise the hood. When closing the hood, lower it slowly and make sure it l ...

    B2636, B2637, B2638, B2639, B2654, B2655 mode door motor
    Description COMPONENT DESCRIPTION Mode Door Motor The mode door motor (1) is attached to the heater & cooling unit assembly. It rotates so that air is discharged from the outlet set by the A/C auto amp. Motor rotation is conveyed to a link which activates the mode door DT ...

    C1729 vehicle speed signal
    Description The vehicle speed signal is not being detected by the BCM. DTC Logic NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.  Activate and display TPMS transmitter IDs &nb ...

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    Nissan Maxima Service and Repair Manual

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