With Manufacturer's Scan Tool
USING LEXUS HAND-HELD TESTER
1. Hook up the LEXUS hand-held tester to the DLC2.
2. Monitor the ECU data by following the prompts on the tester screen.
HINT: LEXUS hand-held tester has a "Snapshot" function which records the monitored data. Please refer to the LEXUS hand-held tester operator's manual for further details.