Read Live Data - Xtool PS90 User Manual

4.5.2. Click YES to confirm the operation, if the communication is normal, it will
show "Trouble Codes Successfully Cleared" or "Trouble Codes Cleared". Generally,
users will need to re-read trouble codes after clearing them to confirm that the
trouble codes have been cleared.

4.6. Read Live Data

System control units, or ECUs send out operating parameters and working status of
various components in the form of an 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.
Tip: Live Data is important function that can be used to help technicians further
diagnose a problem. This function requires technicians to be familiar with sensor
data of each system, control signals and control modes. Tip: Save known good live
data readings for comparison.
(The following are some test conditions and typical values of common live data)
Test Items
1.Engine Speed
2.Engine Coolant
Temperature
3.Throttle Percentage
4.Injecting Pulse Width ms
Unit Normal Data
rpm 0-6000
℃
-40-150
0-100
0-15
12
PS90 Diagnosis System
Test Conditions & Typical Values
Engine warmed-up:
750-850rpm
Engine warmed-up: 85-95℃
Throttle closed:0%, Throttle
wide-open: ＞ 85
Engine warmed-up: 3.5-4.5ms