Operation CHARM: Car repair manuals for everyone.

Introduction

INTRODUCTION
The Diagnostic Trouble Codes (DTC) can be erased by the following methods.
1. Changing the diagnostic test mode from Diagnostic Test Mode II to Mode I by turning the mode selector on the Engine Control Module (ECM).
2. Selecting "ERASE" in the "SELF DIAG RESULTS" mode with CONSULT.
3. Selecting Mode 4 with Generic Scan Tool (GST).
^ If the battery terminal is disconnected, the diagnostic trouble code will be lost within 24 hours.
^ When you erase the DTC, using CONSULT or GST is easier and quicker than switching the mode selector on the ECM.