CAN COMMUNICATION SYSTEM(w/ Central Gateway ECU), Diagnostic DTC:B1003

DTC Code DTC Name
B1003 ECU Malfunction

DESCRIPTION

DTC No. DTC Detection Condition Trouble Area
B1003 The central gateway ECU detects an internal malfunction. Central gateway ECU

PROCEDURE


  1. RECONFIRM DTC OUTPUT


    1. Connect the Techstream to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the Techstream on.

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

      Result
      Result Proceed to
      DTC B1003 is not output from central gateway ECU (Techstream display: Central Gateway) A
      DTC B1003 is output from central gateway ECU (Techstream display: Central Gateway) B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE CENTRAL GATEWAY ECU Click here