ECM Terminal Values Using Toyota Break-Out-Box

ECU TERMINAL VALUES MEASUREMENT BY USING TOYOTA BREAK-OUT-BOX AND TOYOTA HAND - HELD TESTER
a. Hook up the TOYOTA break-out-box and TOYOTA hand-held tester to the vehicle.
b. Read the ECU input/output values by following the prompts on the tester screen.

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

Please refer to the TOYOTA hand-held tester/TOYOTA break-out-box operator's manual for further details.