Clearing Diagnostic Trouble Codes (DTCs) with VCDS is a straightforward process. After performing an Auto-Scan, you have two options: clear codes within a specific module or clear all DTCs globally. Selecting “Clear all DTCs” after the Auto-Scan will prompt VCDS to systematically clear codes from all modules containing DTCs. This action won’t reset readiness or trims unless the engine module has DTCs. Clearing DTCs within the engine module, regardless of the presence of DTCs, will reset readiness and trims.
Passing inspection after clearing codes depends on local regulations. Some areas permit passing with one or two incomplete readiness monitors. Deciding when to clear codes depends on the specific codes and your objective. For instance, clearing an airbag light without diagnosing the underlying code could be dangerous, potentially triggering unintended deployment if the issue is a short circuit. Similarly, clearing codes related to known ABS module issues on certain vehicles might hinder warranty claims or recalls. Always carefully review the DTC details before clearing them, especially for critical safety systems like airbags and ABS. For example, a 2009/2010 vehicle with ABS issues on the MK60EC1 module may require careful consideration before clearing codes, as specific DTCs trigger a recall replacement. Clearing these crucial codes without proper diagnosis could inadvertently void the recall eligibility.
After clearing codes, cycle the ignition key, take the car for a drive, and then perform another Auto-Scan to check for any recurring DTCs. This process helps confirm whether the issue was resolved or requires further diagnosis. If the original problem persists, consult a qualified technician or refer to reliable resources for troubleshooting assistance.
