In February 2014, Mitsubishi filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Other (Electrical System), covering the Aero Star. The filing affects 36 vehicles manufactured between January 2008 and July 2010.
Overview
| MLIT filing number | 1133090 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | February 18, 2014 |
| Manufacturer(s) | Mitsubishi |
| Component | Other (Electrical System) |
| Production period | January 2008 — July 2010 |
| Vehicles affected | 36 units |
Filing in context
The Other (Electrical System) is the most frequently cited component category in this archive, appearing in 12 of its 4,890 filings. This filing is one of 56 Mitsubishi notifications from 2014 in this archive. For scale, 4,255 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 6 months.
Defect
On large route bus hybrid vehicles, the inverter — the device that converts electrical current — may have insufficient durability and reliability. Inverter failure prevents the vehicle drive motor and auxiliary motors from operating, causing the hybrid system warning lamp to illuminate and power output to decrease. In the worst case, the vehicle may become inoperable and power steering function may be lost.
Corrective action
On all vehicles, add a fuse to the inverter electrical circuit, update the hybrid system control ECU software, and replace the inverter cooling system water pump relay with a new unit. The inverter itself is to be replaced periodically with a new unit at appropriate intervals.
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 |
|---|---|---|
| BJG-MP37TK | ふそうエアロスター | MP37TK-25002 — MP37TK-26002 |
| BJG-MP37TM | ふそうエアロスター | MP37TM-25002 — MP37TM-26012 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型路線バスのハイブリッド車において、電流の変換装置であるインバータの耐久信頼性が不足しているものがある。そのため、インバータ破損により車両駆動用モータや補機用モータが作動せず、ハイブリッドシステム警告灯の点灯、出力低下が発生し、最悪の場合、走行不能、パワーステアリング機能不良となるおそれがある。
改善措置
全車両、インバータ電気回路にヒューズを追加するとともに、ハイブリッドシステム制御ＥＣＵのプログラムを変更し、また、インバータ冷却系水ポンプ用リレーを新品に交換する。 インバータについては、適正な時期に定期的に新品に交換する。
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=3003210
Related recalls
Same manufacturer, close in filing date
Other Mitsubishi filings closest to this one by filing date.
Computer (Engine) — affects 8,763 vehicles.
Open recall detail →Fuel Tank — affects 211 vehicles.
Open recall detail →Door — affects 58 vehicles.
Open recall detail →Equipment (Other) — affects 711 vehicles.
Open recall detail →Engine (General) — affects 1,542 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Rearview Mirror — affects 3,024 vehicles.
Open recall detail →Other (electrical equipment) — affects 36 vehicles.
Open recall detail →Door — affects 769 vehicles.
Open recall detail →Engine General — affects 37 vehicles.
Open recall detail →Other (Engine) — affects 491 vehicles.
Open recall detail →All Mitsubishi recalls · All 2014 recalls · Recall Archive home