Nissan Juke Service and Repair Manual : U1000 can comm

Description

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control unit, 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.

CAN Communication Signal Chart. Refer to LAN-31, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart".

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure


Diagnosis Procedure

1.PERFORM SELF DIAGNOSTIC

1. Turn ignition switch ON and wait for 2 seconds or more.

2. Check “Self Diagnostic Result” of BCM.

Is DTC “U1000” displayed? YES >> Refer to LAN-17, "Trouble Diagnosis Flow Chart".

NO >> Refer to GI-42, "Intermittent Incident".

    U1010 control unit (can)
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.REPLACE BCM When DTC “U1010” is detected, replace BCM. >> Replace BCM. Refer to BCS-93, "Removal and Installation". ...

    Other materials:

    Power supply and ground circuit
    Diagnosis Procedure 1.CHECK FUSES AND FUSIBLE LINK Check that the following IPDM E/R fuses or fusible links are not blown. Is the fuse fusing? YES >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown. NO >> GO TO 2. ...

    Back door request switch
    Component Function Check 1.CHECK FUNCTION 1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III. 2. Select “REQ SW-BD/TR” in “DATA MONITOR” mode. 3. Check that the function operates normally according to the following conditions. Is the inspection result normal? YES >> Back door req ...

    Reference Value
    VALUES ON THE DIAGNOSIS TOOL Remarks: • Specification data are reference values. • Specification data are output/input values which are detected or supplied by the ECM at the connector. * Specification data may not be directly related to their components signals/values/operations. I.e. ...