Lexus Break-out Box

Turn ignition switch off.
Connect LEXUS break-out-box and LEXUS hand-held tester to vehicle. See Fig 1.
Turn ignition switch on and read ABS ECU input/output values by following prompts on tester screen. LEXUS hand-held tester has a "Snapshot" function. This records measured values and is effective in the diagnosis of intermittent problems. Refer to LEXUS hand-held tester/LEXUS break-out-box operator's manual for further details.

Fig 1: Connecting LEXUS Break-Out-Box