ECU Terminal Values Measurement
ECU TERMINAL VOLTAGE MEASUREMENT BY USING TOYOTA BRAKE-OUT-BOX AND TOYOTA HAND-HELD TESTER
1. Hook up the TOYOTA brake-out-box and TOYOTA handheld tester to the vehicle.
2. Read the ECU input/output values by following the prompts on the tester screen. Please refer to the TOYOTA brake-out-box operator's manual.
HINT: TOYOTA hand-held tester has a "Snapshot" function. This records the measured data and is effective in the diagnosis of intermittent problems.