CAN COMMUNICATION SYSTEM(w/ Central Gateway ECU), 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 ignition switch to ON.

    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

    B

    REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)