With Manufacturer's Scan Tool

Check the DTC

USING LEXUS HAND-HELD TESTER




a. Hook up the LEXUS hand-held tester to the DLC3.
b. 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.