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 ...

    Other materials:

    Power supply and ground circuit
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    Stall test
    Inspection and Judgment INSPECTION  Inspect the amount of engine oil. Replenish the engine oil if necessary.  Drive for about 10 minutes to warm up the vehicle so that the CVT fluid temperature is 50 to 80C (122 to 176F). Inspect the amount of CVT fluid. Repleni ...

    Engine compartment
    WARNING Never use a fuse of a higher or lower amperage rating than specified on the fuse box cover. This could damage the electrical system or electronic control units or cause a fire. If any electrical equipment does not come on, check for an open fuse. 1. Be sure the ignition switch ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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