Overview
| MLIT filing number | 1150570 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 18, 2021 |
| Manufacturer(s) | Honda |
| Component | Computer (Engine) |
| Production period | January 28, 2021 — September 23, 2021 |
| Vehicles affected | 1,576 units |
Defect
On vehicles equipped with a 6-speed DCT automatic transmission, the fuel injection control software in the engine control unit is incorrect, causing the unit to fail to properly control fuel injection quantity when the throttle is opened quickly by a small amount. In addition, the clutch hydraulic pressure control software in the automatic transmission control unit is incorrect, resulting in excessively high clutch hydraulic pressure during launch. When fuel injection quantity falls below the level required for combustion, load torque increases and, in the worst case, the engine may stall during vehicle launch.
Corrective action
Reprogram the engine control unit and automatic transmission control unit with the corrected software on all vehicles.
Affected models & chassis ranges
This filing lists 2 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 |
|---|---|---|
| 8BL-RH09 | ＮＣ７５０Ｘ | RH09-1000025 — RH09-1001019 |
| 8BL-RH10 | Ｘ－ＡＤＶ | RH10-1000012 — RH10-1000857 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
６速ＤＣＴ型自動変速機を搭載した車両において、エンジン制御コンピュータの燃料噴射制御プログラムが不適切なため、スロットルを素早く僅かに開けると、インジェクタによる燃料噴射量を正しく制御できないことがある。また、自動変速機制御コンピュータの発進時クラッチ油圧制御プログラムが不適切なため、発進時のクラッチ油圧が高いものがある。そのため、燃焼に必要な燃料噴射量が不足した際に負荷トルクが高くなり、最悪の場合、発進時にエンストするおそれがある。
改善措置
全車両、エンジン制御コンピュータ及び自動変速機制御コンピュータ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=3005084