Overview
| MLIT filing number | 1117740 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 16, 2006 |
| Manufacturer(s) | Toyota |
| Component | Computer (Engine) |
| Production period | December 15, 1997 — November 2000 |
| Vehicles affected | 54,217 units |
Defect
The engine control computer does not respond correctly to a fault in the air-fuel ratio sensor circuit, which monitors oxygen concentration in the exhaust gas. If the sensor's internal wiring develops a disconnection, the proper air-fuel ratio may not be maintained. Continued use under these conditions can cause the catalytic converter to overheat and sustain damage. In the worst case, a vehicle fire may occur.
Corrective action
Replace the engine control computer and the air-fuel ratio sensor on all vehicles with corrected parts. Also inspect the catalytic converter and replace it with a new unit if damage is found.
Affected models & chassis ranges
This filing lists 3 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 |
|---|---|---|
| GF-MCU10W | HARRIER | MCU10-0001011 — MCU10-0093338 |
| GF-MCU15W | HARRIER | MCU15-0001022 — MCU15-0187698 |
| GF-MCV20 | WINDOM | MCV20-5051673 — MCV20-5074412 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
排出ガス中の酸素濃度を検出する空燃比（空気と燃料の比率）センサ回路故障時のエンジンコンピュータ制御が不適切なため、センサの内部配線が断線した場合等に適正な空燃比が得られなくなることがある。そのため、そのまま使用を続けると、断線時に触媒コンバータが異常過熱して損傷し、最悪の場合、火災に至るおそれがある。
改善措置
全車両、エンジン制御コンピュータおよび空燃比センサを対策品と交換する。また、触媒コンバータを点検し、損傷しているものは新品と交換する。
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=3001500