In April 2015, Mitsubishi filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer (Electric Motor), covering the MINICAB-MiEV, i-MiEV. The filing affects 1,489 vehicles manufactured between August 2011 and July 12, 2012.
Overview
| MLIT filing number | 1135410 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | April 16, 2015 |
| Manufacturer(s) | Mitsubishi |
| Component | Computer (Electric Motor) |
| Production period | August 2011 — July 12, 2012 |
| Vehicles affected | 1,489 units |
Filing in context
The Computer (Electric Motor) is the most frequently cited component category in this archive, appearing in 5 of its 4,890 filings. This filing is one of 56 Mitsubishi notifications from 2015 in this archive. For scale, 2,573 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 11 months.
Defect
In the motor control unit (MCU) that governs the drive motor, inadequate process control during manufacturing of the internal insulating substrate causes the substrate's insulation resistance to degrade. This destabilizes circuit voltage, illuminating a warning light, and fail-safe control limits drive motor output. In the worst case, the vehicle may become unable to restart and the drive battery may be unable to accept a charge.
Corrective action
On all vehicles, replace the motor control unit (MCU) with a conforming unit.
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 |
|---|---|---|
| ZAA-HA3W | ｉ－ＭｉＥＶ | HA3W-0200202 — HA3W-0304900 |
| ZAB-U67V | ＭＩＮＩＣＡＢ－ＭｉＥＶ | U67V-0001255 — U67V-0100265 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
駆動用モーターを制御するモーターコントロールユニット（ＭＣＵ）において、内部の絶縁基板の製造工程管理が不適切なため、当該絶縁基板の絶縁抵抗が低下するものがある。そのため、回路電圧が不安定となり、警告灯が点灯するとともに、フェールセーフ制御により駆動用モーターの出力が制限され、最悪の場合、再起動不可及び駆動用バッテリーへの充電不可となるおそれがある。
改善措置
全車両、モーターコントロールユニット（ＭＣＵ）を良品に交換する。
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=3003497
Related recalls
Same manufacturer, same component
Other Mitsubishi filings involving the Computer (Electric Motor), closest to this one by filing date.
Computer (Electric Motor) — affects 11,106 vehicles.
Open recall detail →Computer (Electric Motor) — affects 3,839 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Other Equipment — affects 9,563 vehicles.
Open recall detail →Service brake — general — affects 19,799 vehicles.
Open recall detail →Other — affects 7,582 vehicles.
Open recall detail →Airbag — affects 58,562 vehicles.
Open recall detail →Drive battery control computer — affects 3,373 vehicles.
Open recall detail →All Mitsubishi recalls · All 2015 recalls · Recall Archive home