MULTIPLEX COMMUNICATION SYSTEM, Diagnostic DTC:B1248

DTC Code DTC Name
B1248 AVC-LAN Communication Impossible

DESCRIPTION

This DTC is detected if communication between the AVC-LAN (radio receiver or multi-display) and gateway ECU stops for more than 10 seconds.

DTC No. DTC Detection Condition Trouble Area
B1248 AVC-LAN communication is impossible

  • AVC-LAN (radio receiver or multi-display)

  • Gateway ECU

  • Wire harness or connector

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK for DTC


    1. Check for AVC-LAN communication DTCs.

      Result
      Result Proceed to
      AVC-LAN communication DTCs are not output, and there are no symptoms specified in the problem symptoms table. A
      AVC-LAN communication DTCs are not output, and there are no symptoms specified in the problem symptoms table. (for w/ HDD navigation system) B
      AVC-LAN communication DTCs are not output, and there are no symptoms specified in the problem symptoms table. (for w/ DVD navigation system) C
      AVC-LAN communication DTCs are not output, and there are no symptoms specified in the problem symptoms table. (for w/o navigation system) D

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART (NAVIGATION SYSTEM (for DVD)) Click here

    C

    GO TO DIAGNOSTIC TROUBLE CODE CHART (NAVIGATION SYSTEM (for HDD)) Click here

    D

    GO TO DIAGNOSTIC TROUBLE CODE CHART (AUDIO AND VISUAL SYSTEM (for w/o Navigation System)) Click here

    A

    REPLACE GATEWAY ECU