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)
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    Other materials:

    Conditions the remote start will not work
    The remote start will not operate if any of the following conditions are present: "Remote Engine Start" is turned off in the "Locking" section of the Vehicle Settings menu. The ignition switch is placed in the ON position. The hood is not securely closed. The hazard warning lights are ...

    Optical sensor
    Description The optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to the BCM. Component Function Check 1.CHECK OPTICAL SENSOR SIGNAL BY CONSULT CONSULT Turn the ignition switch ON. Select "OPTICAL SENSOR" of BCM (HEAD LAMP) DATA MONIT ...

    Low tire pressure warning
    If the vehicle is being driven with low tire pressure, the warning light will illuminate. A "Tire Pressure Low - Add Air" warning also appears in the vehicle information display. When the low tire pressure warning light illuminates, you should stop and adjust the tire pressure of all four ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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