Operation Manual

To view test results for a specific oxygen sensor, select it from the drop-down list and
click the “Read” button. The progress indicator at the bottom of the window will display
the progress of the operation. If the test is supported and has been completed, the results
will display in the table.
The graphic at the bottom of the window represents a typical oxygen sensor output
voltage waveform. The Test IDs are labeled in the graphic to help you visualize what
each test result represents.
Available Oxygen Sensor Tests
Test ID Description Units
$01 Rich to lean sensor threshold voltage (constant) Volts
$02 Lean to rich sensor threshold voltage (constant) Volts
$03 Low sensor voltage for switch time calculation (constant) Volts
$04 High sensor voltage for switch time calculation (constant) Volts
$05 Rich to lean sensor switch time (calculated) Seconds
$06 Lean to rich sensor switch time (calculated) Seconds
$07 Minimum sensor voltage for test cycle (calculated) Volts
$08 Maximum sensor voltage for test cycle (calculated) Volts
$09 Time between sensor transitions (calculated) Seconds
$0A Sensor period (calculated) Seconds
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