Overview
| MLIT filing number | 1146660 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | February 12, 2020 |
| Manufacturer(s) | Toyota |
| Component | Door |
| Production period | September 14, 2016 — July 12, 2019 |
| Vehicles affected | 27 units |
Defect
On single-operator buses, the door open/close control program for the center door mechanism is improperly configured. Wear debris generated at the terminals of the door-position detection switch oxidizes due to vehicle vibration, increasing contact resistance and preventing accurate detection of door state. Under certain conditions, such as immediately after the vehicle stops, the center door may open unintentionally.
Corrective action
For all vehicles, reprogram the center door control ECU open/close control program to the corrected specification.
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 |
|---|---|---|
| TFCB | ― | TFCB-001 — TFCB-003 |
| ZBC-MUM1NAE | ＳＯＲＡ | MUM1NA-40011 — MUM1NA-40034 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
ワンマンバスの中扉開閉機構において、開閉制御プログラムが不適切なため、走行振動等により扉位置検出スイッチの端子に生成された摩耗粉の酸化によって接触抵抗が増加し、扉の開閉状態を正しく検出できなくなることがある。そのため、停車直後等の特定条件下で、意図せず扉が開くおそれがある。
改善措置
全車両、中扉制御ＥＣＵの開閉制御プログラムを対策仕様に修正する。
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=3004691