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.

      Table 1. Result

      Result

      Proceed to

      OK

      A

      NG (for LHD)

      B

      NG (for RHD)

      C

    USE SIMULATION METHOD TO CHECK

    (Click here)

    REPLACE NETWORK GATEWAY ECU

    (Click here)

    REPLACE NETWORK GATEWAY ECU

    (Click here)