How to Read a Japanese Auction Sheet (Grades & Inspection Codes Explained)

If you’ve ever looked at a Japanese auction sheet for the first time, you know the feeling: a small grid of Japanese handwriting, a rough sketch of a car covered in tiny letters and numbers, and a single bold number or letter grade at the top that supposedly sums up the whole vehicle. It looks cryptic, but once you understand the system, an auction sheet actually tells you more honest, detailed information about a used car’s real condition than almost any other used-car sales document in the world. This guide breaks down exactly what each part of the sheet means, so you can evaluate a car with confidence before you ever authorize a bid.

What an Auction Sheet Actually Is

Every vehicle entered into a Japanese auto auction is examined in person by a professional, third-party inspector before it goes up for bidding. These inspectors work for the auction house itself, not the seller, which is part of why the resulting document is considered relatively trustworthy. The inspector records their findings on a standardized one-page form: a header with the car’s basic details (make, model, chassis number, mileage, and equipment), a rough body diagram divided into panels, and a series of handwritten notes and codes describing anything noteworthy, from a small scratch to an odor inside the cabin.

Different auction houses — USS, TAA, JU, CAA, ZIP, and others — use slightly different sheet layouts and occasionally different codes, but the underlying logic is consistent enough that once you learn one system, reading sheets from other auction houses becomes fairly intuitive.

The Overall Grade: What the Big Number or Letter Really Means

At the top of every sheet sits a single overall grade, and it’s the number most buyers look at first. Here’s roughly how the scale breaks down, though exact thresholds can vary slightly by auction house:

• Grade 6 or S: Essentially brand new, usually under 12 months old with very low mileage.
• Grade 5: Like-new condition with exceptionally low mileage and no notable flaws.
• Grade 4.5: Very lightly used, typically under 100,000 km, with only the faintest cosmetic wear.
• Grade 4: A normal, well-kept used car with minor visible flaws but no accident history — this is where most good-value imports land.
• Grade 3.5: Good condition overall, but with more noticeable cosmetic wear.
• Grade 3: Average condition with visible dents, scratches, or fading.
• Grade 2 or 1: Poor condition with significant cosmetic or mechanical issues, though the car is still running.
• Grade R or RA: The vehicle has a documented repair history from an accident. R generally indicates more significant prior damage than RA, though exact definitions differ between auction houses. This is not automatically a dealbreaker, but it does mean you should study the diagram and notes carefully.

Alongside the overall grade, most sheets also list a separate interior grade using letters A through E, where A represents an almost-new cabin and E indicates heavy wear, odor, or staining. A car can carry a strong exterior grade while having a much rougher interior grade, so it’s worth checking both numbers rather than assuming they match.

Reading the Body Diagram

Below the header, most sheets include a simple line drawing of the car from several angles — typically a top-down view and side profiles. Inspectors mark this diagram with small handwritten codes at the exact location of any flaw they find. The most common damage codes include:

• A (scratch): A1 is a small scratch, A2 medium, A3 large — the number indicates severity, not location.
• U (dent): U1 is roughly thumb-sized, U2 larger, U3 more significant.
• W (wave/repair): Indicates a panel that has been repaired and shows slight waviness or texture change; W1 is minor, higher numbers indicate more visible repair work.
• S (rust): Marks a spot of surface rust or corrosion.
• C (crack): Used for cracks, most often on plastic bumpers or trim.
• XX: Indicates a panel that was damaged in the past and has already been replaced entirely, rather than repaired.

None of these individually are usually cause for concern — a handful of small A1 and U1 marks on a ten-year-old car is completely normal and expected. What matters is the overall pattern: heavy clustering of damage codes on one side of the vehicle can suggest a past side-impact that wasn’t severe enough to trigger the R grade, but is still worth knowing about before you bid.

Equipment and Transmission Codes

Auction sheets also list the car’s factory and dealer-fitted equipment using standardized abbreviations. Some of the most common include:

• PW — power windows
• PS — power steering
• AC / AAC — air conditioning, or automatic climate-controlled air conditioning
• AB — airbags
• SR — sunroof
• LS — leather seats
• NAVI — factory or dealer-fitted navigation system
• AW — original equipment alloy wheels
• TV — television or in-car entertainment display

Transmission type is typically shown separately, with AT, FAT, CVT, or similar codes indicating an automatic or continuously variable transmission, and MT, 5C, or 5SPD-style codes indicating a manual gearbox with the number of gears. Since manual transmissions are far less common in export markets than they once were, this is worth double-checking if you have a strong preference either way.

Mileage Verification and the Odometer Note

Every sheet lists the odometer reading at the time of inspection, and inspectors will typically add a note if they suspect the reading may not be accurate — for example, if the physical wear on the pedals, seat, or steering wheel seems inconsistent with a very low displayed mileage. These notes are not proof of odometer tampering, but they are a signal worth taking seriously, and Japan’s auction industry has invested heavily in shared databases that cross-reference a vehicle’s mileage history across previous inspections and prior sales specifically to catch this kind of discrepancy.

Handwritten Remarks: The Part Buyers Often Skip

Along the edges or bottom of the sheet, inspectors often add short handwritten remarks in Japanese that don’t fit neatly into the coded system. These can include notes about unusual smells (smoke, pets, mildew), aftermarket modifications, missing keys or manuals, warning lights on the dashboard, or minor mechanical noises noticed during a brief test drive. Because these notes are free-form, they are the part of the sheet most likely to get lost in a quick or partial translation — and often the most useful part for understanding what you’re really buying.

Why Grades Aren’t Perfectly Standardized

One frustration for new buyers is discovering that grading isn’t governed by a single, universal legal standard — each auction house sets and trains its own inspectors according to internal guidelines, and individual inspectors inevitably bring some subjectivity to borderline cases. A Grade 4 car at one auction house might look slightly better or worse than a Grade 4 at another. This is normal and expected within the industry, and experienced buyers learn to treat the numeric grade as a useful starting filter rather than an exact, interchangeable score across every auction house.

Frequently Asked Questions

Q: Can I trust the auction sheet completely, or should I still get an independent inspection?

A: Auction sheets are generally reliable because inspectors are independent third parties with no financial stake in the sale price, but they are still a quick visual and mechanical assessment, not a full diagnostic teardown. For expensive or rare vehicles, some buyers pay for an additional independent inspection before bidding, though this isn’t standard practice for most everyday imports.

Q: What does it mean if a sheet has no grade at all, or says “no grade”?

A: This usually applies to very new vehicles, unusual or heavily modified cars, or vehicles being sold “as-is” without a full inspection — for example, some auctions handle non-runners or parts cars this way. Treat these listings with extra caution and ask your agent for as much additional detail as possible.

Q: Do commercial vehicles and kei trucks use the same grading system?

A: Broadly yes, though the emphasis shifts. Inspectors pay closer attention to the cargo bed condition, tailgate function, and evidence of overloading on commercial vehicles and kei trucks, in addition to the standard body and mechanical checks used for passenger cars.

Final Thoughts

Learning to read a Japanese auction sheet is one of the highest-value skills you can develop as an overseas buyer, because it lets you evaluate listings independently rather than relying entirely on someone else’s summary. Start by focusing on the overall grade and interior letter grade, then work through the body diagram for damage clusters, and always insist on a full translation of the handwritten remarks. With a little practice, what once looked like an indecipherable page of Japanese shorthand becomes one of the most useful tools you have for buying a genuinely good used car from Japan.

Image credit: Car inspection by Vanna 0885599228 (CC BY-SA 3.0), via Wikimedia Commons