Launch Creader Professional 909E User Manual page 43

LAUNCH
Professional 909E User Manual
Fig. 5-13
This function can also be done by tapping [I/M Readiness] directly on the Job
Menu.
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. O Sensor Test
2
OBD II regulations require that applicable vehicles monitor and test operation
of the oxygen (O ) sensors to identify problems that can affect fuel efficiency
2
and vehicle emissions. These tests are performed automatically when engine
operating conditions are within predefined limits. Results of these tests are
stored in the on-board computer's memory.
The O Sensor Test function lets you retrieve and view O sensor monitor test
2 2
results for the most recently completed tests from your vehicle's on-board
computer.
7. On-Board Monitor Test
The OBD Monitor Test function retrieves and displays test results for emission-
related powertrain components and systems that are not continuously monitored.
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