3.1 Read Codes
This function can identify which section of the emission control system has
malfunctioned.
3.2 Erase Codes
This function erases the codes from the vehicle, after retrieving codes from the
vehicle and certain repairs have been carried out.
Make sure the vehicle's ignition key is in the ON position with the engine being
off before the operation.
3.3 I/M Readiness
This function checks whether or not the various emissions-related systems on
the vehicle are operating properly, and are ready for Inspection and Maintenance
testing.
It can also be used to check the Monitor Run Status and to confirm if the repair
of a car fault has been performed correctly.
3.4 Data Stream
This function retrieves and displays live data and parameters from the
vehicle's ECU.
3.5 View Freeze Frame
This function takes a snapshot of the operating conditions when an emission-
related fault occurs.
3.6 O2 Sensor Test
This function retrieves O2 sensor monitor test results of the most recently
completed tests from the vehicle's on-board computer.
25