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 vehicles are equipped with many electronic control units, 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

Nissan Maxima. 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. Special Repair Requirement 1. REQUIRED WORK WHEN REPLACING BCM Initialize NVIS b ...

    Other materials:

    Trunk room lamp circuit
    Description Controls the trunk room lamp (ground side) to turn the trunk room lamp ON and OFF. Component Function Check CAUTION: Before performing the diagnosis, check that the following is normal. Battery saver output/power supply Trunk room lamp bulb 1.CHECK TRUNK ROOM LAMP OPERATI ...

    Front and Rear Sonar System (if so equipped)
    The sonar (parking sensor) system sounds a tone to inform the driver of obstacles near the bumper. When the "DISPLAY" key is ON, the sonar view will automatically appear in the meter. WARNING The sonar (parking sensor) system is a convenience but it is not a substitute for proper p ...

    Sunroof does not operate properly
    Diagnosis Procedure 1.CHECK SUNROOF MECHANISM Check the following. Operation malfunction caused by sunroof mechanism deformation, pinched harness or other foreign materials Operation malfunction and interference with other parts by poor installation 2.CHECK SUNROOF MOTOR ASSEMBLY PO ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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