In September 2011, Honda filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Computer (Electric Motor), covering the CR-Z. The filing affects 7,783 vehicles manufactured between December 24, 2009 and June 14, 2011.
Overview
| MLIT filing number | 1128050 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | September 5, 2011 |
| Manufacturer(s) | Honda |
| Component | Computer (Electric Motor) |
| Production period | December 24, 2009 — June 14, 2011 |
| Vehicles affected | 7,783 units |
Filing in context
The Computer (Electric Motor) is the most frequently cited component category in this archive, appearing in 5 of its 4,890 filings. This filing is one of 16 Honda notifications from 2011 in this archive. For scale, 1,750 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 1 year and 5 months.
Defect
On hybrid vehicles, the ECU program that controls the auxiliary power motor is improper. When the auxiliary battery's available power output drops due to low or high temperatures and the engine stalls during acceleration or just before stopping, the ECU continues to demand power generation from the motor even after the stall, causing the motor to rotate in reverse. As a result, the vehicle may travel at low speed in the direction opposite to the intended direction of travel.
Corrective action
On all vehicles, reprogram the motor ECU with the corrected software.
Affected models & chassis ranges
This filing lists 1 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 |
|---|---|---|
| DAA-ZF1 | ＣＲ－Ｚ | ZF1-1000028 — ZF1-1027138 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
ハイブリッド車の補助動力モータを制御するＥＣＵのプログラムが不適切なため、補助動力用バッテリが低温や高温になることにより供給可能電力が低下した状態で、発進時や停止直前にエンストした場合、エンスト後もＥＣＵはモータに発電を要求し続けることから、モータが逆転することがある。そのため、進行方向と逆に微速で走行するおそれがある。
改善措置
全車両、モータＥＣＵを対策プログラムに書換える。
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=3002643
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