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:

    Increasing fuel economy
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    Opening the trunk lid
    1. Push the trunk opener request switch A for more than 1 second while carrying the Intelligent Key with you. If all doors are already unlocked, opening the trunk does NOT require an Intelligent Key to be in range of the trunk opener request switch or rear of the vehicle. 2. The trunk w ...

    Ignition Coil
    Exploded View Ignition coil Spark plug Rocker cover (RH) Rocker cover (LH) Removal and Installation (LH) REMOVAL Remove engine room cover. Refer to EM-23, "Removal and Installation". Disconnect ignition coil harness connector. Remove the ignition coil. CAUTION: Do not sh ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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