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Home >> Lexus >> 2008 >> IS 350 >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Networking) >> Multiplex Communication System >> DTC B1248 AVC-LAN Communication Impossible >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OPERATION 
    1. Check for AVC-LAN communication DTCs.

      OK: AVC-LAN communication DTCs are not output, and there are no symptoms specified in the problem symptoms table. 

    NG: GO TO " DIAGNOSTICS TROUBLE CODE CHART  " OF AUDIO SYSTEM OR NAVIGATION SYSTEM 

    OK: REPLACE GATEWAY ECU