Toyota Avalon Service & Repair Manual: Diagnosis System



(a) Diagnostic Trouble Codes (DTCs) for the telematics system can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and to repair it.


(a) Check the DLC3.

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    Telematics System(for Gasoline Model)

    Diagnostic Trouble Code Chart

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    Toyota Avalon Owners Manual

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