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
    ...

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    Other materials:

    Wiring diagram
    BCM (BODY CONTROL MODULE) Wiring Diagram ...

    B1081 - B1084 seat belt pre-tensioner RH
    Description DTC B1081 - B1084 SEAT BELT PRE-TENSIONER RH The seat belt pre-tensioner RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unitwill monitor for opens and shorts in detected lines to the seat belt pre-tensioner RH. PART LOCATION DTC Logic DTC DETECTIO ...

    P1212 TCS communication line
    Description This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse signals are exchanged between ECM and "ABS actuator and electric unit (control unit)". Be sure to erase the malfunction information such as DTC not only for "ABS actuato ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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