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Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Networking >> Multiplex Communication System >> DTC B1248 AVC-LAN Communication Impossible >> Inspection Procedure

Inspection Procedure

  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 

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