User Manual

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specified limits. These test results are saved in the on-board computer's
memory.
The O2 Monitor Test function allows retrieval and viewing of O2 sensor
monitor test results for the most recently performed tests from the vehicle's
on-board computer.
The O2 Monitor Test function is not supported by vehicles which
communicate using a controller area network (CAN). For O2 Monitor Test
results of CAN-equipped vehicles, see section On-Board Monitor Test.
On-Board Monitor Test
The On-Board Monitor Test is useful after servicing or after erasing a
vehicle’s control module memory. The On-Board Monitor Test is used for
non-CAN-equipped vehicles to retrieve and display test results for
emission-related power train components and systems that are not
continuously monitored. This function is also used for CAN-equipped
vehicles to retrieve and display test results for emission-related power train
components and systems that are continuously and non-continuously
monitored. Test and components IDs are determined by the vehicle
manufacturer.
In this test, there are typically a minimum value, a maximum value, and a
current value for each monitor. By comparing the current value with the
minimum and maximum value, the scan tool will determine if it is OK.
Component Test
The Component Test function allows initiating a leak test for the vehicle's
EVAP system. The scan tool itself does not perform the leak test, but
commands the vehicle's on-board computer to start the test. Different
vehicle manufacturers might have different criteria and methods for stopping
the test once it has been started. Before starting the Component Test, refer
to the vehicle service manual for instructions to stop the test.
Vehicle Information
The Vehicle Info. function enables retrieval of Vehicle Identification No.
(VIN), Calibration ID Nos. (CINs), Calibration Verification Nos. (CVNs) and