MLIT Statutory Recall · Japan

Recall 1133090 — Other (Electrical System)

Filed February 18, 2014 · Mitsubishi

Overview

MLIT filing number1133090
TypeStatutory Recall (government-mandated recall)
Date filedFebruary 18, 2014
Manufacturer(s)Mitsubishi
ComponentOther (Electrical System)
Production periodJanuary 2008 — July 2010
Vehicles affected36 units

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)ModelChassis 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

Check your own vehicle: to see whether this filing affects a specific chassis number — and find every other recall for it — use the chassis lookup on the home page.

Related

All Mitsubishi recalls · All 2014 recalls · Recall Archive home