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EZ400PRO Diagnosis System
4.5. Clear DTCs
4.5.1. Return to the previous step, select Clear DTCs to clear current and historical trouble
codes memory in ECU. Performing this function will clear all the current and historical trouble
codes. Make sure whether the trouble codes have been recorded before clearing, shown as
below.
4.5.2. Click YES to make clear confirmation, if the communication is normal, it will show
"Trouble Codes Successfully Cleared" or "Trouble Codes Cleared". Generally, users need
re-read trouble codes after cleaning them to confirm whether the trouble codes have been
cleared.
4.6. Read Live Data
Auto ECUs send out operating parameters and working status of various components in the
form of Electronic Signal, here Electronic Signal refers to Live Data. Common Engine Live
Data includes Engine Speed, Throttle Position Sensor Voltage, Oxygen Sensor Voltage,
Coolant Temperature, Spark Advance Angle, Idle Speed Switch State, Intake Air Temperature,
Intake Pressure, etc.
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