How to verify a Japanese auction sheet by chassis number

Updated July 15, 2026 · 6 min read

You don't need to trust a dealer's PDF or WhatsApp screenshot. With the car's chassis number you can pull the original Japanese auction sheet and confirm the real grade, mileage and damage map yourself.

Why verification beats a screenshot

Auction sheets travel as images. Grades and odometer readings are easy to edit. Dealers may also show a sheet from a different car of the same model. The only conclusive check is matching the chassis number to the auction's own record — the same source Japan used when the car was graded.

Step 1 — Get the full chassis number

• Ask the seller for the export / deregistration certificate (easiest).
• Or read it from the firewall under the bonnet or the driver's door-jamb plate.
• Enter the full string including the dash and serial — not just the chassis code.

Step 2 — Look up the original sheet

Enter the chassis number in the SheetJP verify form (full walkthrough: how SheetJP works). We search Japan's auction records and, when a sheet exists, show you the original grade, mileage and damage map. One flat fee per report — and if no sheet is found, you aren't charged.

Step 3 — Compare what you were shown

1. Overall grade — does the seller's sheet match (especially R / RA)?
2. Mileage — is the auction reading higher than what the odometer shows now?
3. Damage map — are repair marks, XX panels or clusters missing from the dealer's copy?
4. Chassis number — does it match the car in front of you?

What if no sheet is found?

Not every Japanese car went through a major auction, and some older records are incomplete. A missing sheet is not proof of fraud — but it does mean you're buying with less information. Treat “no sheet” from a dealer who refuses verification as a red flag; treat a genuine database miss as a reason to demand a deeper mechanical inspection and a better price.

What you'll see on a verified report

• Overall auction grade (S, 6–1, R, RA)
• Interior / exterior letter grades where recorded
• Odometer reading at inspection
• Damage-map symbols and replaced panels
• Model, year and other auction header details when available

See annotated real examples on our sample auction sheet page — then verify your own chassis.