CAN COMMUNICATION SYSTEM, Diagnostic DTC:B1003

DTC Code DTC Name
B1003 ECU Malfunction

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B1003 ECU Malfunction The network gateway ECU detects an internal malfunction. Network gateway ECU -

PROCEDURE


  1. RECONFIRM DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Central Gateway / Trouble Codes.


      Body Electrical > Central Gateway > Trouble Codes
      Result
      Result Proceed to
      DTC B1003 is not output from network gateway ECU (GTS display: Central Gateway) A
      DTC B1003 is output from network gateway ECU (GTS display: Central Gateway) B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE NETWORK GATEWAY ECU Click here