MLIT Improvement Campaign · Japan

Improvement Campaign 2102200 — Other (Control System)

Filed November 19, 2002 · Toyota

Overview

MLIT filing number2102200
TypeImprovement Campaign (manufacturer improvement measure / 改善対策)
Date filedNovember 19, 2002
Manufacturer(s)Toyota
ComponentOther (Control System)
Production periodOctober 10, 2002 — November 2002
Vehicles affected32 units

Issue

On hybrid system-equipped vehicles, a partial error in the battery charging control logic causes intake manifold vacuum supplied to the vacuum brake booster to temporarily drop immediately after a cold engine start. In the worst case, normal brake pedal effort may produce reduced braking effectiveness.

Corrective action

On all vehicles, replace the engine control computer and hybrid inverter unit with corrected parts. (Because supply of corrected parts requires additional time, an interim measure will notify all owners of the defect and applicable operating precautions.)

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
ZA-GBS12 CROWN SEDAN GBS12-0001020 — GBS12-0001053

Original Japanese (MLIT source text)

Show the original Japanese filing text

状況

 ハイブリッドシステム搭載車において、モータ駆動用バッテリへ充電するための制御が 一部不適切なため、エンジン冷間時の始動直後に真空式ブレーキ倍力装置に作用する吸気 管負圧が一時的に不足することがあり、最悪の場合、通常の踏力ではブレーキの効きが悪 くなるおそれがある。

改善措置

 全車両、当該制御用エンジンコンピュータとインバータユニットを対策品と交換する。  (対策品の供給に時間を要することから、当面の暫定措置として、不具合内容と使用上 の注意を全使用者に通知する。)

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=3008614

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.

Related

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