Ask I-CAR
Per I-CAR curriculum: "Some malfunctions do not trigger a dashboard warning light, meaning a scan is the only way to detect those faults.
Vehicle manufacturers and equipment makers have position statements on their websites. These statements outline the requirements for diagnostic scans and calibrations, specifically pre-scanning, post-scanning, and ADAS calibration.
Performing a pre-scan offers several advantages. It helps identify and document active DTCs, often including timestamps that indicate when faults occurred. This distinguishes between pre-existing codes, codes caused during a collision, and those generated during repairs. By identifying issues or calibration needs in advance, facilities can provide more accurate repair estimates, reducing the chances of discovering additional problems during repairs or post-repair.
A post-repair scan is a crucial quality control step that ensures all DTCs have been addressed and the vehicle's systems, including ADAS and other safety features that may need calibration, function properly. Otherwise, certain malfunctions may remain undetected.”
Check out the I-CAR Collision Repair News article: Pre- and Post-Repair System Scanning Position Statements
Check out the I-CAR Collision Repair News article: ADAS, Calibration, And Scanning Article Hotspot
