ECU Terminal Values Measurement

NOTE: The LEXUS hand-held tester has a Snapshot function which records the measured data and is effective in the diagnosis of intermittent problems.

1. Hook up the LEXUS break-out-box and LEXUS hand-held tester to the vehicle. See Fig 1.
2. Read the ECU input/output values by following the prompts on the tester screen.

Fig 1: Measuring ECU Terminal Values With LEXUS Break-Out-Box & Hand-Held Tester

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