Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lighting System(for Gasoline Model): Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Lighting system data and Diagnostic Trouble Codes (DTCs) 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 perform repairs. CHECK DLC3 (a) Check the DLC3. Cli ...
