To check a vehicle's history within an auction app, start by entering the unique chassis number. Most apps provide a digital auction sheet, which acts as a detailed health report. Look for the overall "Grade"—higher numbers like 4.5 signify excellent condition, while "R" indicates past repairs. Any reliable japan used car dealer (https://www.miauto.jp/) will use these sheets to verify mileage, interior quality, and previous accidents. Always cross-reference the app's data with auction photos to ensure total transparency.