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:

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    Seatback thermal electric device
    Description Provides cooling and heat for the seatback. Component Function Check 1.CHECK SEATBACK THERMAL ELECTRIC DEVICE FUNCTION Turn the climate controlled seat switch to the H (Heat) HI position and check that the seatback thermal electric device operates correctly. Turn the clima ...

    L terminal circuit (short)
    Description The terminal "L" circuit controls the charge warning lamp. The charge warning lamp turns ON when the ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine running, the charge warning lamp turns off. If the charge warning lamp i ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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