In April 2008, Mazda filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer (Engine), covering the Demio, Verisa and 1 more model. The filing affects 170,300 vehicles manufactured between March 24, 2005 and October 31, 2007.
Overview
| MLIT filing number | 1120900 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | April 10, 2008 |
| Manufacturer(s) | Mazda |
| Component | Computer (Engine) |
| Production period | March 24, 2005 — October 31, 2007 |
| Vehicles affected | 170,300 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 13 Mazda notifications from 2008 in this archive. For scale, 299 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 2 years and 7 months.
Defect
The engine control unit's idling speed control software is defective. When the air conditioning is operating in high ambient temperatures during sustained high-speed driving, engine speed may fail to decrease promptly after the accelerator pedal is released. This reduces the negative pressure supplied to the brake booster. In the worst case, repeated brake applications under these conditions may reduce braking force.
Corrective action
On all vehicles, reprogram the engine control unit.
Affected models & chassis ranges
This filing lists 7 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 |
|---|---|---|
| DBA-BK5P | AXELA | BK5P-300014 — BK5P-320784 |
| DBA-DC5R | VERISA | DC5R-200003 — DC5R-302007 |
| DBA-DC5W | VERISA | DC5W-200007 — DC5W-316511 |
| DBA-DY3R | DEMIO | DY3R-200005 — DY3R-208892 |
| DBA-DY3W | DEMIO | DY3W-400030 — DY3W-508290 |
| DBA-DY5R | DEMIO | DY5R-200007 — DY5R-201385 |
| DBA-DY5W | DEMIO | DY5W-400019 — DY5W-414530 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
エンジン制御コンピュータのアイドリング回転数制御プログラムが不適切なため、高外気温下でエアコンを作動させ、一定車速で高速走行を継続した場合、アクセルペダルを戻してもエンジン回転が下がりにくくなることがある。そのため、ブレーキ倍力装置に供給される負圧が不足し、最悪の場合、ブレーキ操作を繰り返し行うと、制動力が低下するおそれがある。
改善措置
全車両、エンジン制御コンピュータのプログラムを書き換える。
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=3001845
Related recalls
Same manufacturer, same component
Other Mazda filings involving the Computer (Engine), closest to this one by filing date.
Computer (Engine) — affects 2,607 vehicles.
Open recall detail →Computer (Engine) — affects 110,657 vehicles.
Open recall detail →Computer (Engine) — affects 172,095 vehicles.
Open recall detail →Computer (Engine) — affects 158,785 vehicles.
Open recall detail →Computer (Engine) — affects 12 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Airbag — affects 74,231 vehicles.
Open recall detail →Other (Equipment) — affects 19,916 vehicles.
Open recall detail →Cooling system — affects 35,181 vehicles.
Open recall detail →Power Steering — affects 76,092 vehicles.
Open recall detail →Clutch — affects 6,022 vehicles.
Open recall detail →