Lexus LS600L Dismantling Manual page 2

Foreword
This guide was developed to educate and assist dismantlers in the safe handling of Lexus
LS600h/LS600hL gasoline-electric hybrid vehicles. LS600h/LS600hL dismantling procedures are
similar to other non-hybrid Lexus vehicles with the exception of the high voltage electrical system. It
is important to recognize and understand the high voltage electrical system features and specifications of
the Lexus LS600h/LS600hL, as they may not be familiar to dismantlers.
High voltage electricity powers an electric motor, generator, electric inverter compressor (for air
conditioner) and power control unit. All other conventional automotive electrical devices such as the
headlights, radio, and gauges are powered from a separate 12 auxiliary volt battery. Numerous
safeguards have been designed into the LS600h/LS600hL to help ensure the high voltage, approximately
288 Volt, Nickel Metal Hydride (NiMH) Hybrid Vehicle (HV) battery pack is kept safe and secure in an
accident.
The NiMH HV battery pack contains sealed batteries that are similar to rechargeable batteries used in
some battery operated power tools and other consumer products. The electrolyte is absorbed in the cell
plates and will not normally leak out even if the battery is cracked. In the unlikely event the electrolyte
does leak, it can be easily neutralized with a dilute boric acid solution or vinegar.
High voltage cables, identifiable by orange insulation and connectors, are isolated from the metal chassis
of the vehicle.
Additional topics contained in the guide include:
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Lexus LS600h/LS600hL identification.
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Major hybrid component locations and descriptions.
By following the information in this guide, dismantlers will be able to handle the LS600h/LS600hL
hybrid-electric vehicles as safely as the dismantling of a conventional non-hybrid automobile.
¤ 2007 Toyota Motor Corporation
All rights reserved. This book may not be reproduced or
copied, in whole or in part, without the written permission
of Toyota Motor Corporation.
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