Nissan Juke Service and Repair Manual : U1000 can comm circuit

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-DIAG [CAN]” in “special function” of “AIR BAG” using CONSULT-III.

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 AIR BAG DIAGNOSIS SENSOR UNIT When DTC “U1010” is detected, replace Air bag diagnosis sensor unit. >> Replace Air bag diagnos ...

    Other materials:

    Additional service when replacing control unit
    ECM ECM : Description Performing the following procedure can automatically activate recommunication of ECM and BCM, but only when the ECM is replaced with a new one*. *: New one means a virgin ECM that has never been energized on-board. (In this step, initialization procedure by CONSULT-I ...

    S terminal circuit
    Description The starter motor magnetic switch is supplied with power when the ignition switch is turned to the START position while the selector lever is in the P or N position for CVT models or the clutch pedal is depressed for M/T models. Diagnosis Procedure CAUTION: Perform diagnosis un ...

    Key positions
    LOCK (0) The key can only be removed from the ignition switch at this position. OFF (1) The engine is turned off. The power supply is turned off. ACC (2) The electrical accessory power activates without the engine turned on. ON (3) The ignition system and the electrical accessory power activa ...