Using Hand-Held Tester

WARNING: This page is about a different car, the 2002 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

Prepare the LEXUS hand-held tester.
Connect the hand-held tester to the DLC3. See Fig 1.
Turn the ignition switch ON and switch the hand-held tester main switch ON.
Use the hand-held tester to check the DTCs, note them down. (For operating instructions, see the hand-held tester's instruction book.)
Confirm the details of the DTCs. See DIAGNOSTIC TROUBLE CODE INDEX table.

Fig 1: Connecting Hand-Held Tester To DLC3