MLIT Statutory Recall · Japan

Recall 1153843 — Computer (electric motor)

Filed October 26, 2023 · Mazda

Overview

MLIT filing number1153843
TypeStatutory Recall (government-mandated recall)
Date filedOctober 26, 2023
Manufacturer(s)Mazda
ComponentComputer (electric motor)
Production periodOctober 19, 2022 — June 19, 2023
Vehicles affected27,699 units

Defect

The electric drive control computer uses improper activation conditions for its failsafe function. When a cooling abnormality occurs in the plug-in hybrid inverter, restricting motor operation may still allow the inverter to overheat. If the vehicle continues to be used in this state, the engine warning light and hybrid system warning light illuminate. When the failsafe activates and shuts down motor operation, engine operation is simultaneously stopped, and the vehicle may become inoperable.

Corrective action

(3) On all vehicles, reprogram the electric drive control computer with the corrected/updated software. Additionally, update the engine control computer software to a version compatible with the corrected electric drive control computer 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)ModelChassis ranges
5LA-KH5S3P CX-60 KH5S3P-100004 — KH5S3P-100992

Original Japanese (MLIT source text)

Show the original Japanese filing text

状況

(3)電気駆動制御コンピュータにおいて、フェイルセーフの作動条件が不適切なため、プラグインハイブリッド用インバータの冷却異常が発生した場合にモータの運転を制限しても、インバータが過熱することがある。そのため、そのまま使用を続けた場合、エンジン警告灯やハイブリッドシステム警告灯が点灯し、フェイルセーフが作動してモータの運転を停止する際、同時にエンジンの運転も停止し、走行できなくなるおそれがある。

改善措置

(3)全車両、電気駆動制御コンピュータの制御プログラムを対策プログラムに修正する。併せてエンジン制御コンピュータの制御プログラムを、電気駆動制御コンピュータの対策プログラムに適応したプログラムに更新する。

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=3009494

Check your own vehicle: to see whether this filing affects a specific chassis number — and find every other recall for it — use the chassis lookup on the home page.

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