Overview
| MLIT filing number | 1153620 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | August 7, 2023 |
| Manufacturer(s) | Hino |
| Component | Engine Control Computer |
| Production period | August 10, 2017 — February 13, 2023 |
| Vehicles affected | 339 units |
Defect
On large hybrid route buses, the hybrid control program is improperly designed, causing inadequate lubrication of the supply pump sliding surfaces at engine start due to foreign matter in the fuel. This leads to accelerated wear of the sliding surfaces. Continued operation may cause the pump to fail, rendering the vehicle inoperable.
Corrective action
On all vehicles, replace the hybrid ECU, supply pump, fuel pre-filter, and fuel lines with corrected/revised parts.
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 |
|---|---|---|
| 2SG-HL2ANBP | BLUE RIBBON Hybrid | HL2ANB-40011 — HL2ANB-40282 |
| 2SG-HL2ASBP | BLUE RIBBON Hybrid | HL2ASB-40011 — HL2ASB-40077 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型ハイブリッド路線バスにおいて、ハイブリッド制御プログラムが不適切なため、エンジン始動時にサプライポンプの摺動部が、燃料中の異物等により潤滑不良となり摩耗することがある。そのため、そのまま使用を続けるとポンプが破損し、走行できなくなるおそれがある。
改善措置
全車両、ハイブリッドＥＣＵ、サプライポンプ、燃料プレフィルタおよび燃料配管を対策品に交換する。
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=3009430