In December 2020, Mazda filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Engine Control Unit, covering the MAZDA3. The filing affects 10 vehicles manufactured between June 13, 2019 and September 19, 2019.
Overview
| MLIT filing number | 1148571 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | December 10, 2020 |
| Manufacturer(s) | Mazda |
| Component | Engine Control Unit |
| Production period | June 13, 2019 — September 19, 2019 |
| Vehicles affected | 10 units |
Filing in context
The Engine Control Unit is the most frequently cited component category in this archive, appearing in 3 of its 4,890 filings. This filing is one of 22 Mazda notifications from 2020 in this archive. For scale, 4,592 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 3 months.
Defect
In the engine control unit, an incorrect fuel injection control program may prevent the unit from accurately controlling injector fuel delivery when a large volume of fuel vapor flows into the combustion chamber. This results in insufficient fuel injection for combustion and, in the worst case, may cause the engine to stall at low vehicle speeds.
Corrective action
Reprogram the engine control unit fuel injection control program to 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 |
|---|---|---|
| 5BA-BPFP | ＭＡＺＤＡ３ | BPFP-100420 — BPFP-107339 |
| 6BA-BP5P | ＭＡＺＤＡ３ | BP5P-101514 — BP5P-106282 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
①エンジン制御コンピュータにおいて、燃料噴射制御プログラムが不適切なため、燃焼室に大量の燃料蒸発ガスが流れ込んだ際に、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。そのため、燃焼に必要な燃料噴射量が不足し、最悪の場合、低車速時にエンストするおそれがある。
改善措置
①全車両、エンジン制御コンピュータの燃料噴射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=3004866
Related recalls
Same manufacturer, same component
Other Mazda filings involving the Engine Control Unit, closest to this one by filing date.
Engine Control Unit — affects 22 vehicles.
Open recall detail →Engine Control Unit — affects 15,105 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Fuel pump — affects 146,777 vehicles.
Open recall detail →Other systems — affects 43 vehicles.
Open recall detail →Computer (Engine Control) — affects 17,367 vehicles.
Open recall detail →Computer (Engine Control) — affects 17,367 vehicles.
Open recall detail →Other equipment — affects 24,750 vehicles.
Open recall detail →