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DTC B1248: AVC-LAN COMMUNICATION IMPOSSIBLE Lexus LS III

Communication Devices ~104 words

Note. AVC-LAN is Audio Visual Communication - Local Area Network. Code B1248 is set when communication stops between body ECU and AVC-LAN circuit.

  1. Check radio display or multi-information display. If display reads OK, go to next step. If display reads EXCH, replace body ECU.
  2. Disconnect body ECU and radio connectors. Check continuity of Green wire between body ECU connector terminal No. 9 and radio connector terminal No. 3. (Схема №5). Check continuity of Red wire between body ECU connector terminal No. 20 and radio connector terminal No. 6. Repair wiring as necessary. If wiring is okay, replace body ECU.

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