Read Dtcs - Xtool EZ400PRO Manual

EZ400PRO Diagnosis System

4.4. Read DTCs

Select Read Trouble Codes to read trouble codes stored in ECU. Screen will show the trouble
code and its definition when read the trouble codes, shown as below.
Tip: In the process of diagnosis, if the device shows "System is OK" or "No Trouble Code", it
means there is no related trouble code stored in ECU or some troubles are not under the
control of ECU, most of these troubles are mechanical system troubles or executive circuit
troubles, it is also possible that signal of the sensor may bias within limits, which can be judged
in Live Data.
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