Deciphering the ratings of Japanese car auctions: a complete analysis for buyers

Buying a car from Japanese auctions is one of the most profitable ways to acquire a reliable used car at a price below the market price. However, without knowing the rating system, you risk getting a car with hidden problems instead of “Japanese quality”. Japanese auction sheets contain encrypted information about the condition of the car, repair history and even minor defects - but it is almost impossible to understand them without preparation.

In this article we will analyze in detail all assessment elements: From alphanumeric codes to color codes, we'll explain how to differentiate minor scratches from serious accidents, and we will teach you to identify pitfalls that sellers often keep silent. We will pay special attention new valuation rules for 2026, which changed the approach to the classification of body damage and electronics. If you are planning to buy a car at auction or are already studying lots, this guide will save you thousands of dollars.

What is an auction sheet and why it should not be ignored

An auction sheet is a document that accompanies every car at Japanese auctions. It contains not only technical specifications, but also detailed assessment of the condition on more than 50 parameters. Unlike European or American reports (e.g. Carfax), Japanese sheets evaluate the car at the time of sale, rather than collecting history over the entire service life.

The main problem for foreign buyers is lack of a unified standard. Each auction (USS, TAA, JAA, JU, etc.) uses its own rating system, although the principles are similar. For example, in USS a 6-point scale is used for the body, and in TAA - 5 points. Without knowing these nuances, you can overpay for a car with a “4.5” rating, which actually requires major repairs.

• 📄 Official status: The auction list is legally binding in Japan and is part of the sales contract.
• 🔍 Hidden defects: Even if the photo of the car is perfect, the sheet may contain notes about corrosion under the seals or signs of flooding.
• 💰 Pricing: The difference between ratings “5” and “4” can reach 30% of the cost of the lot.

⚠️ Attention: Some dealers intentionally hide auction sheet pages with negative ratings. Always demand full version of the document (including Remark and History sections) before purchasing.

Alphanumeric grading system: what do the codes mean?

The auction list is based on alphanumeric codes, which describe the condition of the key components of the car. Deciphering these codes is the first step to understanding the real state of the machine. For example, assessment B4 in section Engine indicates that the engine is in good condition, but requires minimal maintenance, and E in section Frame indicates serious damage to the frame.

The most important sections for analysis:

Section	Example code	Decoding
Exterior (Body)	A5	Perfect condition, no defects
Interior (Salon)	C3	Minor wear, requires dry cleaning
Engine (Engine)	D2	Works stably, but there are oil leaks
Frame (Frame)	E	Serious damage, possible deformation
Electronics (Electronics)	RA	All systems work, no errors

Pay special attention to codes with letters "E" or "F" - they indicate a critical state of the node. For example, F in section Transmission indicates that the transmission requires replacement. Also beware of combinations like C1-D3 - this may indicate uneven wear (for example, the interior is in good condition, but the engine is on the verge of failure).

Color marks: how to quickly assess the condition of a car

In addition to numbers and letters, Japanese auctions use color coding, which allows you to quickly navigate the condition of the lot. Colors appear on the edges of the auction sheet or near the estimates. For example, green the color indicates that the car is in excellent condition, and red - about serious problems.

Here's what the primary colors mean:

• 🟢 Green: The car is in perfect or near perfect condition. Suitable for purchase without additional verification.
• 🟡 Yellow: Minor defects (scratches, small dents). Requires visual inspection.
• 🔴 Red: Serious damage (accidents, corrosion, engine problems). Purchase is possible only after a complete diagnosis.
• ⚪ White: The vehicle has not been checked or the data is missing. A red flag often hides problems.
• 🔵 Blue: Car after restoration or with replaced parts. The quality of the repair needs to be checked.

The color mark is first filter when choosing a lot. For example, if you see Toyota Crown 2018 with green label and rating A5 In terms of bodywork, this is a reliable option. But Nissan Skyline with red mark and code E in section Frame - This is a lot for professionals who are ready to invest in restoration.

⚠️ Attention: Some auctions (eg. JAA) use gradient color scales (for example, light green → dark green). Please check the color legend for your specific auction as shades may indicate varying levels of wear.

Remark section: where the most important details are hidden

The most informative (and often ignored) section of the auction sheet is Remark. Listed here all defects, which were not included in the main estimates: from chips on the windshield to traces of body repairs. Remark is written in Japanese, but it can be translated using specialized services (for example, Auction Export or Japan Car Auction Check).

Typical notes in Remark and their meaning:

• 🔧 (Shashī bangō fuiichi) — chassis number mismatch. This may mean that the car is after a serious accident or stolen.
• 💧 (Suibotsu) — getting into water. Even if the car looks normal, the electronics may be damaged.
• 🔥 (Kasai) — fire trail. Such cars often have hidden wiring problems.
• 🛠️ (Shūfuku-reki) — repair history. Specify exactly what work was carried out.
• ⚡ (Batterī agari) — low battery. May indicate problems with the generator or prolonged downtime.

If there are notes in Japanese in Remark that you don't understand, never rely on translators like Google Translate — they often distort technical terms. It is better to use specialized databases or contact a professional translator who understands auto terminology.

Example of a real Remark with translation

(Furonto banpā kōkantosō) — "Replacing and painting the front bumper." (Enjin oiru morere) —"Engine oil leaks." (Untenseki shīto yabure) — "Torn driver's seat."

Mileage assessment: how to recognize twist

Japanese auction listings show mileage in kilometers, but this data is not always reliable. Japan is one of the few countries where tampering with the odometer is punishable by law (up to 3 years in prison), but scammers find loopholes. The main signs that the mileage may have been changed:

• 📉 Inconsistency with ratings: A car with 50,000 km mileage has an interior rating D1 (heavy wear).
• 🔄 Dashboard replacement: There is a note in Remark (Mētā kōkan —"replacement of devices").
• 📅 Unrealistic mileage: Toyota Corolla 2015 with a mileage of 10,000 km (average mileage in Japan is 12,000 km/year).
• 🔧 Traces of intervention: The photo shows scratches around the dashboard or signs of tampering.

To check your mileage, compare it with inspection dates (Shaken), which are also indicated on the sheet. For example, if the last technical inspection was passed at 80,000 km, and now the odometer shows 60,000 km, this is a clear sign of malfunction. Also pay attention to condition of pedals and steering wheel: with a real mileage of 50,000 km they should be almost new.

Compare mileage with inspection dates (Shaken)

Check the Remark for any mention of replacing appliances

Assess the condition of the interior (pedals, steering wheel, seats)

View the odometer photo (if there are any signs of tampering)

Check service history (if any)

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New valuation rules for 2026: what has changed

From January 1, 2026, the largest Japanese auctions (USS, TAA, JAA) implemented new assessment standards, which touched on several key aspects:

1. More stringent classification of body damage: Now even small dents (up to 3 cm) can lower the rating from A up to B.
2. Mandatory electronics check: New codes have been introduced for hybrid and electric vehicles (e.g. EV-B for batteries).
3. Accounting for environmental standards: Vehicles that do not meet the standard Euro 6, get marked Eco-F.
4. Digital photo verification: Now all images of lots are checked for editing (for example, retouching scratches).

The most important change concerned section Frame: Now even minor deformation of the subframe (which was previously assessed as C) automatically receives a rating D. This is due to stricter safety requirements after a series of scandals involving the sale of used cars under the guise of “clean” ones.

⚠️ Attention: If you see a rating on the sheet Frame: D or E on a 2026 vehicle, this is almost guaranteed to mean serious accident. Previously, such cars could be assessed C and sold as "light damage".

💡

From 2026, even minor damage to the frame or subframe will automatically reduce the rating to D. This means that cars with this mark require a mandatory check for body geometry.

Typical sellers' tricks and how to avoid them

Even with an auction list, sellers find ways to hide the real condition of the car. Here are the most common tricks and how to recognize them:

• 📸 Photo retouching: Pictures show no scratches or dents, but Remark shows signs of damage. Solution: Demand raw photos or video inspection.
• 🔄 Substitution of sheets: The seller shows a sheet from another car. Solution: Check VIN and chassis number in the document.
• 💡 Hiding Remark: They do not provide the full version of the sheet. Solution: Use services like CarVX to check the history by VIN.
• 🔋 Hybrid camouflage: Does not indicate the actual state of the battery. Solution: Look for codes HV-B or EV-C in section Electronics.

One of the most insidious tricks - sale of cars after “mild” accidents under the guise of being “clean”. For example, the car could receive a blow to the rear bumper, which led to the displacement of the side members, but this is not noticeable from the outside. In this case, there will be a note in Remark (Ria banpā shōgeki - “hit in the rear bumper”), but the body assessment may remain B. Always check all sections of the sheet and ask for additional photos of problem areas.

📊 Have you ever encountered fraud when buying a car at auction?

Yes, they hid the damage

Yes, they twisted the mileage

No, everything was fair

Didn't buy from auctions

FAQ: Frequently asked questions about Japanese auction sheets

Can you trust the A5 rating? Is this a guarantee of perfect condition?

Evaluation A5 means the car is in excellent condition according to the auction inspector, but this is not a guarantee that there will be no problems. For example, the inspector may not have noticed corrosion under the seals or hidden traces of an accident. Always check Remark and ask for additional photos.

What should I do if there is a code “S” (repair) on the sheet? Is this always bad?

Code S indicates that the car has undergone body repairs, but this is not always critical. For example, S4 may mean replacing the bumper after a minor accident. Combinations like S1-E (frame repair) or S-R (traces of rust after repair).

How to check a car if the sheet is in Japanese?

Use specialized services:

• Auction Export — paid translation of sheets with expert comments.
• Japan Car Auction Check - free decoding of basic codes.
• CarVX — history check by VIN with data from Japanese insurance companies.

To accurately translate Remark, it is better to hire a translator who understands auto terminology.

Is it worth buying a car with a red tag?

Cars with a red mark (serious damage) are suitable only for experienced buyers who are ready to invest in repairs. For example, Honda CR-V with red mark and code E in Frame may require replacement of the side members (cost - from $2000). Before purchasing be sure to:

1. Swipe body geometry check.
2. Estimate the cost of repairs at your local auto repair shop.
3. Make sure replacement parts are available for this model.

What is the difference between USS, TAA and JAA auctions?

Main differences:

• USS: The most strict in grading, uses a 6-point scale. Suitable for purchasing premium cars.
• TAA: 5-point scale, cars are often sold after an accident (but with a clear indication of the damage).
• JAA: Less strict, but provides detailed photos. Good for budget lots.

For beginners, it is recommended to start with USS — there is less risk of running into hidden defects.