In November 2025, Honda filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the On-Board Diagnostic Function (Engine), covering the Accord. The filing affects 4,636 vehicles manufactured between January 17, 2024 and October 17, 2025.
Overview
| MLIT filing number | 1241120 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 13, 2025 |
| Manufacturer(s) | Honda |
| Component | On-Board Diagnostic Function (Engine) |
| Production period | January 17, 2024 — October 17, 2025 |
| Vehicles affected | 4,636 units |
Filing in context
This is the only filing in the archive that cites the On-Board Diagnostic Function (Engine) as the affected component. This filing is one of 32 Honda notifications from 2025 in this archive. For scale, 1,982 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 1 year and 9 months.
Defect
In the powertrain, an incorrect control program in the integrated drive force control unit may cause electrical noise generated by the unit's power supply IC to be misidentified as a fault. When this occurs, the power system warning light illuminates and the fail-safe mode activates, shutting down the engine and drive motor and leaving the vehicle unable to travel. In addition, on-board diagnostic (OBD) data may be erased, causing the vehicle to not conform to the Safety Standards.
Corrective action
On all vehicles, reprogram the integrated drive force control unit with the corrected software.
Affected models & chassis ranges
This filing lists 1 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| 6AA-CY2 | ＡＣＣＯＲＤ | CY2-1000044 — CY2-1003463; CY2-1100014 — CY2-1101509 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
原動機において、駆動力統合制御ユニットの制御プログラムが不適切なため、当該ユニットの電源用ＩＣから発生する電気ノイズにより、故障と誤判定することがある。そのため、パワーシステム警告灯等が点灯し、フェールセーフが働き、エンジン及び駆動モータが停止して走行できなくなる。また、車載式故障診断装置（ＯＢＤ）のデータが消去し、保安基準に抵触するおそれがある。
改善措置
全車両、駆動力統合制御ユニットを対策プログラムに書き換える。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3010313
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