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:

    Operating range
    The Intelligent Key functions can only be used when the Intelligent Key is within the specified operating range. When the Intelligent Key battery is almost discharged or strong radio waves are present near the operating location, the Intelligent Key system's operating range becomes narro ...

    SRS air bag system
    "AIR BAG" Warning Lamp Does Not Turn Off DIAGNOSTIC PROCEDURE 1.CHECK CONDITION OF AIR BAG MODULE Inspect for any deployed air bag modules or seat belt pre-tensioners. 2.CHECK THE AIR BAG FUSE Check 10A fuse [No. 2, located in the fuse block (J/B)]. 3.CHECK AIR BAG FUSE AGAIN Replace 10A fuse ...

    Audio antenna
    Location of Antenna AV control unit AV control unit antenna feeder In-line connectors M103, M501 Antenna amp. Window antenna Satellite radio antenna feeder Satellite radio antenna Window Antenna Repair ELEMENT CHECK Attach probe circuit tester (ohm setting) to antenna ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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