Overview
| MLIT filing number | 1145220 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | June 26, 2019 |
| Manufacturer(s) | Toyota |
| Component | Other (Electrical Equipment) |
| Production period | February 2018 — November 15, 2018 |
| Vehicles affected | 19,618 units |
Defect
In the DC-DC converter (voltage conversion unit), inadequate control of production equipment results in insufficient soldering of the control circuit board on some units. Repeated thermal cycling during use causes the solder joints to detach, preventing charging of the auxiliary battery and illuminating a warning light. In the worst case, the hybrid system may shut down and the vehicle may become inoperable.
Corrective action
Inspect the serial number of the DC-DC converter on all vehicles. If the unit falls within the affected range, replace it with a conforming unit.
Affected models & chassis ranges
This filing lists 8 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 |
|---|---|---|
| 6AA-NHP170G | SIENTA | NHP170-7119047 — NHP170-7140167 |
| DAA-NHP10 | AQUA | NHP10-2590956 — NHP10-2596063; NHP10-6712421 — NHP10-6791525 |
| DAA-NHP10H | AQUA | NHP10-2590956 — NHP10-2596063; NHP10-6712421 — NHP10-6791525 |
| DAA-NHP130 | VITZ | NHP130-2032487 — NHP130-2042713 |
| DAA-NHP170G | SIENTA | NHP170-7119047 — NHP170-7140167 |
| DAA-NKE165 | COROLLA AXIO | NKE165-7177292 — NKE165-7196264 |
| DAA-NKE165G | COROLLA FIELDER | NKE165-7177290 — NKE165-7201639 |
| DAA-NTP10 | ＪＰＮ ＴＡＸＩ | NTP10-0005120 — NTP10-0010356 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
電圧変換装置（ＤＣ－ＤＣコンバータ）において、生産設備の管理が不適切なため、制御基板の半田付けが不十分なものがある。そのため、使用過程における冷熱の繰り返しで半田が剥離して、補機バッテリへの充電ができなくなることで警告灯が点灯し、最悪の場合、ハイブリッドシステムが停止して走行不能となるおそれがある。
改善措置
全車両、ＤＣ－ＤＣコンバータの製造番号を点検し、該当する場合は良品と交換する。
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=3009598