In March 2020, Mitsubishi, Nissan, Nissan Diesel & UD Trucks filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Other Equipment, covering the Space Runner A, Aero Star. The filing affects 1,220 vehicles manufactured between September 21, 2007 and August 24, 2010.
Overview
| MLIT filing number | 1147280 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | March 31, 2020 |
| Manufacturer(s) | Mitsubishi, Nissan, Nissan Diesel, UD Trucks |
| Component | Other Equipment |
| Production period | September 21, 2007 — August 24, 2010 |
| Vehicles affected | 1,220 units |
Filing in context
This notification is a joint filing by 4 manufacturers: Mitsubishi, Nissan, Nissan Diesel & UD Trucks.
The Other Equipment is the most frequently cited component category in this archive, appearing in 32 of its 4,890 filings. This filing is one of 43 Mitsubishi notifications from 2020 in this archive. For scale, 2,687 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 11 months.
Defect
On large-capacity transit buses, the engine intake air heater relay contains internal electrical contacts with insufficient durability. When the engine stop-start cycle is repeated frequently—through the idling stop function or routine stops at bus stops—arc discharge occurs at the contacts and causes them to melt. Continued operation allows the contacts to weld together, generating heat that leads to carbonization and smoke. In the worst case, the relay and portions of the wiring harness may catch fire.
Corrective action
On all vehicles, replace the intake air heater relay with a new unit. In addition, install a manual ON/OFF switch to disable the air heater function, affix a sticker promoting proper usage, and distribute a leaflet specifying the air heater operating conditions. Because supply of the additional parts requires time, the relay will be replaced first; the additional parts will be installed as soon as they become available.
Affected models & chassis ranges
This filing lists 6 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 |
|---|---|---|
| PKG‐AP35UK | スペースランナーＡ | AP35UK-20001 — AP35UK-21002; AP35UK-21003 — AP35UK-21010 |
| PKG‐AP35UM | スペースランナーＡ | AP35UM-20001 — AP35UM-21009; AP35UM-21010 — AP35UM-21074 |
| PKG‐AP35UP | スペースランナーＡ | AP35UP-20001 — AP35UP-21005; AP35UP-21006 — AP35UP-21012 |
| PKG‐MP35UK | ふそうエアロスター | MP35UK-20002 — MP35UK-21027 |
| PKG‐MP35UM | ふそうエアロスター | MP35UM-20001 — MP35UM-21317 |
| PKG‐MP35UP | ふそうエアロスター | MP35UP-20002 — MP35UP-21066 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型路線バスのエンジンインテークエアヒータリレーにおいて、リレー内部電気接点の耐久性が不足しているため、アイドリングストップ機能や、停留所等でのエンジン停止始動を頻繁に繰り返すと、接点部がアーク放電により溶損することがある。そのため、そのままの状態で使用を続けると、接点が溶着状態となり発熱して炭化・発煙し、最悪の場合、リレー及び配線の一部が焼損に至るおそれがある。
改善措置
全車両、インテークエアヒータリレーを新品に交換する。また、エアヒータ機能を解除する手動ＯＮ／ＯＦＦスイッチを追加し適切な使用を励行するステッカーを貼付し、エアヒータの作動条件等を明記したリーフレットを配布する。 なお、追加部品の供給に時間を要することから、当該リレーを先行して交換し、追加部品は供給の準備でき次第、改めて取付けする。
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=3004728
Related recalls
Same manufacturer, same component
Other Mitsubishi filings involving the Other Equipment, closest to this one by filing date.
Other Equipment — affects 2,462 vehicles.
Open recall detail →Other Equipment — affects 9,563 vehicles.
Open recall detail →Other Equipment — affects 49 vehicles.
Open recall detail →Other Equipment — affects 3,789 vehicles.
Open recall detail →Other Equipment — affects 1,563 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 →Wiring — affects 1,051 vehicles.
Open recall detail →Wiring — affects 1,223 vehicles.
Open recall detail →Door — affects 769 vehicles.
Open recall detail →Equipment – Other — affects 3 vehicles.
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