Clear Reset Emission-related Diagnostic Information

July 3, 2012 OBD Scantool Software Guide

Mode $4: Clear/Reset Emission-related Diagnostic Information

OBD Scantool toolbar


This service provides a means to command on-board modules to clear all emission-related diagnostic information. This includes the following:

  • Count of Diagnostic Trouble Codes.
  • Diagnostic Trouble Codes.
  • Trouble Code causing Freeze Frame data.
  • Clear Oxygen Sensor test data.
  • Reset status of on-board Monitoring tests.
  • Clear On-board Monitoring test results

Note: The Ignition must be ON, with the engine OFF, in order to perform this action.

Clear/Reset

Warning

* WARNING * – Click the "YES" button Only if you are certain that you want to Clear/Reset Diagnostic data. This action is irreversible!

  • The Help button provides a shortcut to this help topic. Contextual Help

Mode $1: Request Current Powertrain Diagnostic Data
Mode $2: Request Powertrain Freeze Frame Data
Mode $3: Request Emission-related Powertrain Diagnostic Trouble Codes
Mode $5: Request Oxygen Sensor Monitoring test Results
Mode $6: Request On-Board Monitoring Test Results for Non-Continuously Monitored Systems
Mode $7: Request On-Board Monitoring Test Results for Continuously Monitored Systems
Mode $8: Request Control of On-Board System, Test or Component
Mode $9: Request Vehicle Information

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