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Retrieving Diagnostic Trouble Codes: Notes

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Always record DTCs during retrieval. DTCs will be erased from memory when DTCs are retrieved.
NOTE: An OBD II scan tool complying with SAE J1978 can be used if Toyota hand-held tester is not available.
NOTE: If scan tool or Toyota hand-held tester is not available, retrieve diagnostic trouble codes using OPEN DOOR indicator light. See USING OPEN DOOR INDICATOR LIGHT .