In June 2019, Toyota filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Other (Electrical Equipment), covering the Aqua, Sienta and 4 more models. The filing affects 19,618 vehicles manufactured between February 2018 and November 15, 2018.
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 |
Filing in context
The Other (Electrical Equipment) is the most frequently cited component category in this archive, appearing in 46 of its 4,890 filings. This filing is one of 36 Toyota notifications from 2019 in this archive. For scale, 1,249 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 9 months.
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
Related recalls
Same manufacturer, same component
Other Toyota filings involving the Other (Electrical Equipment), closest to this one by filing date.
Other (Electrical Equipment) — affects 1,001 vehicles.
Open recall detail →Other (Electrical Equipment) — affects 20 vehicles.
Open recall detail →Other (Electrical Equipment) — affects 197 vehicles.
Open recall detail →Other (Electrical Equipment) — affects 600,965 vehicles.
Open recall detail →Other (Electrical Equipment) — affects 9,835 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
Seat — affects 12,553 vehicles.
Open recall detail →Parking Lever / Pedal — affects 580,792 vehicles.
Open recall detail →Other — affects 405,714 vehicles.
Open recall detail →Exhaust pipe — affects 23,586 vehicles.
Open recall detail →Engine assembly — affects 259,991 vehicles.
Open recall detail →