In September 2022, Hino filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Engine Control Unit / Exhaust Emissions Control System (Computer), covering the Profia, Selega. The filing affects 21,100 vehicles manufactured between June 2017 and March 2022.
Overview
| MLIT filing number | 1151980 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | September 9, 2022 |
| Manufacturer(s) | Hino |
| Component | Engine Control Unit / Exhaust Emissions Control System (Computer) |
| Production period | June 2017 — March 2022 |
| Vehicles affected | 21,100 units |
Filing in context
This is the only filing in the archive that cites the Engine Control Unit / Exhaust Emissions Control System (Computer) as the affected component. This filing is one of 28 Hino notifications from 2022 in this archive. For scale, 1,208 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 4 years and 9 months.
Defect
On vehicles equipped with the E13C engine, the DPR regeneration control program is improperly calibrated. During DPR regeneration under high-speed, high-load conditions, the urea SCR catalyst temperature rises higher than intended, accelerating catalyst degradation. If the vehicle continues to be operated in this condition, nitrogen oxide emissions in the exhaust may exceed regulatory limits.
Corrective action
On all vehicles, as an interim measure, the SCR catalyst purification rate is inspected; catalysts exceeding the threshold are replaced. An SCR catalyst purification rate inspection item is also added to the maintenance log service schedule. A permanent corrective measure will be implemented once finalized.
Affected models & chassis ranges
This filing lists 25 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 |
|---|---|---|
| 2DG-FS1EHA | PROFIA | FS1EH-100015 — FS1EH-101337 |
| 2DG-FS1EJA | PROFIA | FS1EJ-100016 — FS1EJ-101074 |
| 2DG-FW1EHG | PROFIA | FW1EH-100017 — FW1EH-103565 |
| 2DG-SS1EKHA | PROFIA | SS1EKH-100015 — SS1EKH-101407 |
| 2KG-FR1EHG | PROFIA | FR1EH-100015 — FR1EH-102058 |
| 2KG-FR1EHJ | PROFIA | FR1EH-100015 — FR1EH-102058 |
| 2KG-FS1EGA | PROFIA | FS1EG-100015 — FS1EG-102044 |
| 2KG-FS1EHA | PROFIA | FS1EH-100015 — FS1EH-101337 |
| 2KG-FS1EHG | PROFIA | FS1EH-100015 — FS1EH-101337 |
| 2KG-FS1EJA | PROFIA | FS1EJ-100016 — FS1EJ-101074 |
| 2KG-FW1EHG | PROFIA | FW1EH-100017 — FW1EH-103565 |
| 2KG-FW1EHJ | PROFIA | FW1EH-100017 — FW1EH-103565 |
| 2PG-FR1EHG | PROFIA | FR1EH-100015 — FR1EH-102058 |
| 2PG-FR1EHJ | PROFIA | FR1EH-100015 — FR1EH-102058 |
| 2PG-FS1EHA | PROFIA | FS1EH-100015 — FS1EH-101337 |
| 2PG-FS1EHG | PROFIA | FS1EH-100015 — FS1EH-101337 |
| 2PG-FW1EHG | PROFIA | FW1EH-100017 — FW1EH-103565 |
| 2PG-FW1EHJ | PROFIA | FW1EH-100017 — FW1EH-103565 |
| 2PG-SH1EDGG | PROFIA | SH1EDG-100015 — SH1EDG-106640 |
| 2PG-SH1EDGJ | PROFIA | SH1EDG-100015 — SH1EDG-106640 |
| 2PG-SH1EEGG | PROFIA | SH1EEG-100015 — SH1EEG-101703 |
| 2PG-SH1EGGG | PROFIA | SH1EGG-100015 — SH1EGG-100390 |
| 2PG-SS1EKGA | PROFIA | SS1EKG-100015 — SS1EKG-100136 |
| 2PG-SS1EKGG | PROFIA | SS1EKG-100015 — SS1EKG-100136 |
| 2RG-RU1ESDA | SELEGA | RU1ESD-40011 — RU1ESD-40909 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
Ｅ１３Ｃエンジン搭載車において、ＤＰＲ再生用制御プログラムが不適切なため、高回転高負荷条件でのＤＰＲ再生中に尿素ＳＣＲ触媒温度が想定より高温となり、触媒劣化の進行が早くなることがある。そのため、そのまま使用を続けると排出ガス中の窒素酸化物の排出値が規制値を超えるおそれがある。
改善措置
全車両、暫定措置として、浄化率の点検を行い、基準値を超える場合は触媒を交換する。また、メンテナンスノートの点検整備項目にＳＣＲ触媒の浄化率点検を追加する。なお、恒久対策が決定し次第、改めて措置を実施する。
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=3005230
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