LIN COMMUNICATION SYSTEM, Diagnostic DTC:B2789

DTC Code DTC Name
B2789 No Response from ID BOX

DESCRIPTION

DTC No. DTC Detection Condition Trouble Area
B2789 An internal malfunction occurs in the certification ECU (smart key ECU assembly) Certification ECU (smart key ECU assembly)

INSPECTION PROCEDURE

Note


  • When using the Techstream to troubleshoot with the power switch off:

    Connect the Techstream to the DLC3, and turn the courtesy switch on and off at 1.5-second intervals until communication between the Techstream and vehicle begins.

  • If the certification ECU (smart key ECU assembly) is replaced, register the keys Click here.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B2789 is not output.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here