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 on 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 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

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" of "AV Control Unit".
    DTC/circuit diagnosis
    ...

    U1010 control unit (CAN)
    Description Initial diagnosis of AV control unit. DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.REPLACE AV CONTROL UNIT hen DTC U1010 is detected, replace AV control unit ...

    Other materials:

    C1114 main relay
    Description Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and electric unit (control unit). DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.CHECK SELF-DIAGNOSIS RESULTS Check the self-diagnosis results. Diagnosis P ...

    ECU diagnosis information
    BCM (BODY CONTROL MODULE) Reference Value NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information. Activate and display TPMS transmitter IDs Display tire pressure reported by the TPMS tran ...

    Headlamp
    Description Headlamp lighting when theft warning system is in alarm phase. Component Function Check 1.CHECK HEADLAMP OPERATION Check if headlamps operate by lighting switch. Diagnosis Procedure 1.CHECK HEADLAMP OPERATION Refer to EXL-6, "Work Flow" (xenon type) or EXL-171, "Work Flow" (ha ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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