Measuring ECU Terminal Values Using LEXUS Break-Out Box

ECU TERMINAL VALUES MEASUREMENT BY USING LEXUS BREAK-OUT-BOX AND LEXUS HAND-HELD TESTER
1. Hook up the LEXUS break-out-box and LEXUS hand-held tester to the vehicle.
2. Read the ECU input/output values by following the prompts on the tester screen.
3. Please refer to the LEXUS break-out-box operator's manual.

HINT: LEXUS hand-held tester has a "Snapshot" function. This records the measured data and is effective in the diagnosis of intermittent problems.