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 vehicle is equipped with many electronic control unit, 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

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.  Replace BCM. Refer to BCS-79, "Removal and Installation". ...

    Other materials:

    Floor trim
    Exploded View Spacer (RH) Spacer (LH) Floor mat hook Floor carpet Harness clamp Front Removal and Installation REMOVAL Disconnect the negative and positive battery terminals. Refer to PG-68, "Removal and Installation (Battery Tray)". Remove front seat (RH/LH). Refer t ...

    Can communication system
    Component Parts Location ABS actuator and electric unit (control unit) E26 TCM F15 ECM E10 4. IPDM E/R E17 BCM M19 Combination meter M24 Data link connector M22 Steering angle sensor M53 Driver seat control unit B203 ...

    Automatic air conditioner system
    System Diagram CONTROL SYSTEM The control system consists of input sensors, switches, the A/C auto amp. (microcomputer) and outputs. The relationship of these components is as shown in the figure below: System Description CONTROL OPERATION Display The operation status of the HVAC system ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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