Nissan Maxima Service and Repair Manual: U0101 can comm circuit

Nissan Maxima Service and Repair Manual / Engine / Engine control system / DTC/circuit diagnosis / U0101 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 onto 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 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.

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON and wait at least 3 seconds.
  2. Check DTC.

Diagnosis Procedure

    Power supply and ground circuit
    Diagnosis Procedure 1.CHECK GROUND CONNECTION-I Turn ignition switch OFF. Check ground connection E9. Refer to Ground Inspection 2.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I Disconnec ...

    U1001 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 excelle ...

    Other materials:

    Front fender
    Exploded View Front fender Removal and Installation REMOVAL Remove the front combination lamp. Refer to EXL-154, "Removal and Installation". Remove the fender protector. Refer to EXT-24, "Removal and Installation". Remove cowl top side trim cover. EXT- ...

    Installing front license plate
    Use the following steps to mount the front license plate: 1. Make holes on the plastic finisher at the location mark (small dimple) using a 5 mm (0.20 in) drill. Apply light pressure to the drill. Install the license plate holder using the two screws provided with the holder. 2. Mount ...

    Locking with power door lock switch
    To lock all the doors without a key, push the door lock switch (driver's or front passenger's side) to the lock position 1 . When locking the door this way, be certain not to leave the key inside the vehicle. To unlock all the doors without a key, push the door lock switch (driver's or f ...

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