Using Toyota Hand-held Tester
WARNING: This page is about a different car, the 2002 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
For present or past coded, connect Toyota hand-held tester to DLC3. DLC3 is located under left side of instrument panel. See Fig 2. Retrieve DTCs by following prompts on tester. See tester operator's manual for instructions.