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 A malfunction in the non-volatile storage of the central gateway ECU (network gateway ECU) is detected. Central gateway ECU (network gateway ECU) -

PROCEDURE


  1. RECONFIRM DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the power 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 the central gateway ECU (network gateway ECU) A
      DTC B1003 is output from the central gateway ECU (network gateway ECU) B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) Click here