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:

    B210D starter relay
    DTC Logic DTC DETECTION LOGIC NOTE: If DTC B210D is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-29, "DTC Logic". If DTC B210D is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-30, "D ...

    Communication signal circuit
    SATELLITE RADIO TUNER SATELLITE RADIO TUNER : Description Communication signals are exchanged between the AV control unit and satellite radio tuner using the communication circuits. SATELLITE RADIO TUNER : Diagnosis Procedure 1.CHECK HARNESS - 1 Turn ignition switch OFF. Disconnect ...

    P050A, P050e cold start control
    Description ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions. DTC Logic DTC DETECTION LOGIC NOTE: If DTC P050A or P050E is dis ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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