Nissan Juke Service and Repair Manual : U0100 lost communication (ECM A)

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 malfunction 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 independently). 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

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Start the engine and wait for at least 5 seconds.

2. Check the first trip DTC.

Is “U0100” detected? YES >> Go to TM-385, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

For the diagnosis procedure, refer to LAN-17, "Trouble Diagnosis Flow Chart".

    U0073 communication bus A off
    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 excellen ...

    U0140 lost communication (BCM)
    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 excellen ...

    Other materials:

    Key switch
    Component Function Check 1.CHECK FUNCTION 1. Select “DOOR LOCK” of “BCM” using CONSULT-III. 2. Select “KEY ON SW” in “DATA MONITOR” mode. 3. Check that the function operates normally according to the following conditions. Is the inspection result normal? YES >> Key switch is OK. N ...

    Rear door
    Exploded View 1. Rear door panel 2. TORX bolt 3. Door striker 4. Door check link 5. Door hinge (lower) 6. Door hinge (upper) : Do not reuse : N·m (kg-m, in-lb) : N·m (kg-m, ft-lb) : Body grease Door assembly DOOR ASSEMBLY : Removal and Installation CAUTION: • Perform work with 2 ...

    Secondary speed sensor
    Exploded View 1. Transaxle assembly 2. O-ring 3. Secondary speed sensor : Vehicle front : Always replace after every disassembly. : N·m (kg-m, in-lb) : Genuine NISSAN CVT Fluid NS-2 Removal and Installation REMOVAL 1. Disconnect battery cable from negative terminal. Refer to PG-124, ...