Topdon OBDCAN Serie Mode D'emploi page 15

Ultrascan OBDCAN Series User's Manual
Maintenance testing.
The purpose of the I/M Readiness Monitor Status is to indicate which
of the vehicle's Monitors have run and completed their diagnosis
and testing, and which ones have not yet run and completed testing
and diagnosis of their designated sections of the vehicle's emissions
system.
4. Data Stream
This option retrieves and displays live data and parameters from the
vehicle's ECU.
5. View Freeze Frame
When an emission-related fault occurs, certain vehicle conditions
are recorded by the on-board computer. This information is referred
to as freeze frame data. Freeze Data is a snapshot of the operating
conditions at the time of an emission-related fault.
Note: If DTCs were erased, Freeze Data may not be stored in vehicle
memory depending on vehicle.
6. O2 sensor test
The results of O2 sensor test are not live values but instead the
results of the ECU's last O2 sensor test. For live O2 sensor readings,
refer to any of the live sensor screens such as Graph Screen.
Not all test values are applicable to all vehicles. Therefore, the list
generated will vary depending on vehicle. In addition, not all vehicles
support the Oxygen Sensors screen.
7. On-board monitor test
This function can be utilized to read the results of on-board
diagnostic monitoring tests for specific components/systems.
8. EVAP System Test
The EVAP test function lets you initiate a leak test for the vehicle's
EVAP system.
9. Vehicle Info
This option displays the vehicle information, such as VIN (Vehicle
Identification Number), CID (Calibration ID) and CVN (Calibration
Verification Number).
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