Instructions / Assembly

Mode $04 - Used to clear DTCs and Freeze Frame data. This

clears all diagnostic trouble codes that may be set including freeze

frame data and readiness monitors.

Mode $05 - Oxygen Sensor Test Results. This mode displays the

oxygen sensor monitor screen and the test results gathered about the

oxygen sensor.

There are ten numbers available for diagnostics:

1. $01 Rich-to-Lean O2 sensor threshold voltage

2. $02 Lean-to-Rich O2 sensor threshold voltage

3. $03 Low sensor voltage threshold for switch time

measurement

4. $04 High sensor voltage threshold for switch time

measurement

5. $05 Rich-to-Lean switch time in ms

6. $06 Lean-to Rich switch time in ms

7. $07 Minimum voltage for test

8. $08 Maximum voltage for test

9. $09 Time between voltage transitions in ms

Mode $06 - Non-Continuously Monitored Systems test results.

There are typically a minimum value, a maximum value, and a

current value for each non-continuous monitor. This data is optional,

and it is defined by a given vehicle make if it‟s used.

Mode $07 - Request for DTCs (pending) from Continuously

Monitored Systems after a single driving cycle has been

performed to determine if repair has fixed a problem. This is

used by service technicians to verify repair was performed properly

and after clearing diagnostic trouble codes.

Mode $08 - This Special Control Mode requests control of the

on-board system, test, or component bi-directionally (where

applicable). This mode is manufacturer specific.

Mode $09 - Reports vehicle information. This information includes

vehicle VIN number and calibration information stored in the vehicle

ECUs.