CAN COMMUNICATION SYSTEM, Diagnostic DTC:B1003

DTC Code DTC Name
B1003 ECU Malfunction

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
B1003 The network gateway ECU detects an internal malfunction. Network gateway ECU

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check that no DTCs are output Click here.

      OK
      DTC B1003 is not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE NETWORK GATEWAY ECU Click here

    C

    REPLACE NETWORK GATEWAY ECU Click here