Overview
| MLIT filing number | 1153842 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | October 26, 2023 |
| Manufacturer(s) | Mazda |
| Component | Computer (engine) |
| Production period | July 2022 — June 2023 |
| Vehicles affected | 27,699 units |
Defect
The engine control computer uses improper fault-detection conditions. When an idling stop shuts the engine down and that shutdown is interrupted by accelerator operation or similar input, the computer may temporarily lose the ability to correctly identify the fuel injection cylinder. The computer may then incorrectly log this as a fault and disable fuel injection until the correct cylinder is identified. If this occurs while driving, the vehicle decelerates; if the vehicle is stationary, the engine may be unable to restart.
Corrective action
(2) On all vehicles, reprogram the engine control computer with the corrected/updated 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 |
|---|---|---|
| 3CA-KH3R3P | ＣＸ－６０ | KH3R3P-100013 — KH3R3P-110860 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
（２）エンジン制御コンピュータにおいて、故障判定する条件が不適切なため、アイドリングストップによりエンジンが停止する際、アクセル操作等でエンジン停止が中断されると、一時的に、燃料噴射気筒を正しく判定できなくなることがある。そのため、その時に故障として誤判定することで、燃料噴射を禁止し、燃料噴射気筒を正しく判定するまで燃料が噴射できず、走行中の場合は車両が減速し、停車中の場合はエンジンが再始動できないおそれがある。
改善措置
（２）全車両、エンジン制御コンピュータの制御プログラムを対策プログラムに修正する。
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=3009493