FixVault

Ecu Terminal Values Measurement By Using Break-Out-Box And Hand-Held Tester

WARNING: This page is about a different car, the 2003 Lexus GS 430 and 2003 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Hook up the break-out-box and 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 hand-held tester has a "Snapshot" function. This records the measured data and is effective in the diagnosis of intermittent problems.
    Fig 1: Measuring ECU Terminal Values Using Break-Out-Box And Hand-Held Tester
    G03632710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002