In June 2018, Mazda filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer (Engine), covering the CX-5, CX-8. The filing affects 23,208 vehicles manufactured between September 29, 2017 and May 2018.
Overview
| MLIT filing number | 1142790 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | June 14, 2018 |
| Manufacturer(s) | Mazda |
| Component | Computer (Engine) |
| Production period | September 29, 2017 — May 2018 |
| Vehicles affected | 23,208 units |
Filing in context
The Computer (Engine) is the most frequently cited component category in this archive, appearing in 49 of its 4,890 filings. This filing is one of 39 Mazda notifications from 2018 in this archive. For scale, 1,148 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 8 months.
Defect
In the diesel engine control program, a software error causes the engine control computer to incorrectly identify the brief residual rotation that occurs during engine shutdown as an abnormality, preventing the computer from cutting off its own power supply. As a result, the start-stop unit interprets this condition as a short circuit in the starter circuit. When the push-button start is pressed, the power position may fail to switch to ON, preventing the engine from starting.
Corrective action
On all vehicles, reprogram the engine control program with the corrected software.
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 |
|---|---|---|
| 3DA-KF2P | ＣＸ－５ | KF2P-200005 — KF2P-207962 |
| 3DA-KG2P | ＣＸ－８ | KG2P-100037 — KG2P-117390 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
ディーゼルエンジンにおいて、エンジン制御プログラムが不適切なため、エンジンを停止させた際の僅かなエンジン回転を異常と判定し、エンジン制御コンピュータへの電源供給が停止しなくなる。そのため、スタート・ストップ・ユニットがスタータ回路の短絡と判定し、プッシュボタンスタートを押しても、電源ポジションがＯＮに切り替わらず、エンジンが始動できなくなるおそれがある。
改善措置
全車両、エンジン制御プログラム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=3004280
Related recalls
Same manufacturer, same component
Other Mazda filings involving the Computer (Engine), closest to this one by filing date.
Computer (Engine) — affects 12 vehicles.
Open recall detail →Computer (Engine) — affects 158,785 vehicles.
Open recall detail →Computer (Engine) — affects 235,293 vehicles.
Open recall detail →Computer (Engine) — affects 9,000 vehicles.
Open recall detail →Computer (Engine) — affects 172,095 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Other — affects 9,972 vehicles.
Open recall detail →Other (Safety Lighting) — affects 3 vehicles.
Open recall detail →Computer (Engine) — affects 3,836 vehicles.
Open recall detail →Computer (Engine) — affects 3,836 vehicles.
Open recall detail →Other (Engine) — affects 235,293 vehicles.
Open recall detail →