Lexus LS 600 2009 User Manual
Gasoline-Electric Lexus Hybrid Drive
Revised
UVF45/46 Series
Foreword
This revised LS600h/LS600h L gasoline-electric hybrid Emergency Response Guide has been updated
to include the 2010 model year changes to the NiMH HV battery pack, instrument cluster, and
dashboard. 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 inverter/converter. 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:
• Lexus LS600h/LS600hL identification.
• 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.
© 2009 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.
ii
Table of Contents
About the LS600h/LS600hL......................................................................................................................1
LS600h/LS600hL Identification ................................................................................................................2
Exterior .........................................................................................................................................................3
LS600h/LS600hL Identification (Continued)...........................................................................................4
Interior...........................................................................................................................................................4
Engine Compartment....................................................................................................................................5
Hybrid Component Locations & Descriptions.........................................................................................6
Specifications................................................................................................................................................7
Lexus Synergy Drive Operation................................................................................................................8
Vehicle Operation..........................................................................................................................................8
Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery......................................................................9
HV Battery Pack............................................................................................................................................9
Components Powered by the HV Battery Pack.............................................................................................9
HV Battery Pack Recycling.........................................................................................................................10
Auxiliary Battery..........................................................................................................................................10
High V oltage Safety..................................................................................................................................11
High Voltage Safety System........................................................................................................................11
Service Plug Grip........................................................................................................................................12
Precaution to be observed when dismantling the vehicle......................................................................13
Necessary Items.........................................................................................................................................13
Spills ..........................................................................................................................................................14
Dismantling a vehicle ...............................................................................................................................14
Removal of HV battery............................................................................................................................18
HV Battery Caution Label ...........................................................................................................................37
iii
About the LS600h/LS600hL
The LS600h/LS 600h L sedan joins the RX 400h, RX450h, HS250h and GS 450h as a
hybrid model for Lexus. Lexus Hybrid Drive means that the vehicle contains a
gasoline engine and an electric motor for power. The two hybrid power sources are
stored on board the vehicle:
1. Gasoline stored in the fuel tank for the gasoline engine.
2. Electricity stored in a high voltage Hybrid Vehicle (HV) battery pack for the
electric motor.
The result of combining these two power sources is improved fuel economy and
reduced emissions. The gasoline engine also powers an electric generator to recharge
the battery pack; unlike a pure all electric vehicle, the LS600h/LS600hL never needs to
be recharged from an external electric power source.
Depending on the driving conditions one or both sources are used to power the vehicle.
The following illustration demonstrates how the LS600h/LS600hL operates in various
driving modes.
During light acceleration at low speeds, the vehicle is powered by the electric motor.
The gasoline engine is shut off.
During normal driving, the vehicle is powered mainly by the gasoline engine. The
gasoline engine also powers the generator to recharge the battery pack.
During full acceleration, such as climbing a hill, both the gasoline engine and the
electric motor power the vehicle.
During deceleration, such as when braking, the vehicle regenerates the kinetic
energy from the wheels to produce electricity that recharges the battery pack.
While the vehicle is stopped, the gasoline engine and electric motor are off, however
the vehicle remains on and operational.
Starting
Electricity Electricity and gasoline
Normal Driving
Acceleration
Electricity and gasoline
(additional electricity
extracted from batteries)
1
Deceleration
Charging batteries
Stopping
Engine automatically
stopped
LS600h/LS600hL Identification
In appearance, the 2010 model year/2009 calendar year LS600h/LS600hL is nearly identical to
the conventional, non-hybrid Lexus LS460/LS460L. The LS600h/LS600hL is a 4-door sedan
and the suffix “L” indicates a long wheelbase. Exterior, interior, and engine compartment
illustrations are provided to assist in identification.
The alphanumeric 17 character Vehicle Identification Number (VIN) is provided in the front
windshield cowl, driver door pillar, and engine compartment.
Example VIN:
JTHCU46F000000001 (LS600h)
JTHDU46F000000001 (LS600hL except for U.S.A. and Canada)
JTHDU1
JTHDU5
An LS600h is identified by the first 6 alphanumeric characters
JTHCU4.
An LS600hL is identified by the first 6 alphanumeric characters
JTHDU4, JTHDU1 or JTHDU5.
EF000000001 (LS600hL (4-seat models) for U.S.A. and Canada)
EF000000001 (LS600hL (5-seat models) for U.S.A. and Canada)
Driver Side Windshield Engine Compartment Cowl
Base of Driver Side B Pillar
2
Exterior
LS600h or LS600hL logos on the trunk.
HYBRID logos on the rear door moldings.
Lexus logos that have blue in the background.
LS600h or LS600hL
Exterior Rear and Left Sid e View
Exterior Left Side View
Exterior Front View
3
LS600h/LS600hL Identification (Continued)
Interior The instrument cluster (speedometer, fuel gauge, warning lights) located in the dash behind
the steering wheel, is different than the one on the conventional, non-hybrid
LS460/LS460L.
The hybrid system indicator (power meter) is located next to the tachometer.
Hint:
If the vehicle is shut off, the instrument cluster gauges will be “blacked out”, not
illuminated.
5-passenger type
Interior View
Instrument Cluster View
4
Engine Compartment
5.0-liter aluminum alloy gasoline engine.
Logo on the plastic engine cover.
Orange colored high voltage power cables.
LEXUS HYBRID DRIVE Logo on
Engine cover
Engine Compartment Power Cables
5
Hybrid Component Locations & Descriptions
Component* Location Description
12 Volt
Auxiliary
Battery
Hybrid
Vehicle (HV)
Battery Pack
Power
Cables
Inverter/
Converter
Gasoline
Engine
Electric
Generator
Trunk, Driver Side A lead-acid battery that supplies power to the low voltage devices.
Trunk Area, Mounted
behind Rear Seat
Undercarriage and
Engine Compartment
Engine Compartment Boosts and inverts the high voltage electricity from the HV battery
Engine Compartment Provides two functions:
Transmission 3-phase high voltage AC generator that is contained in the
288 Volt Nickel Metal Hydride (NiMH) battery pack consisting of
20 low voltage (14.4 Volt) modules connected in series.
Orange colored power cables carry high voltage Direct Current
(DC) between the HV battery pack, inverter/converter, and A/C
compressor. These cables also carry 3-phase Alternating Current
(AC) between the inverter/converter, electric motor, and generator.
pack to 3-phase AC electricity that drives the electric motor. The
inverter/converter also converts AC electricity from the electric
generator and electric motor (regenerative braking) to DC that
recharges the HV battery pack.
1) Powers the vehicle.
2) Powers the generator to recharge the HV battery pack.
The engine is started and stopped under control of the vehicle
computer.
transmission and recharges the HV battery pack.
Electric
Motor
A/C
Compressor
(with
Inverter)
DC-DC
Converter
for 12 Volt
Auxiliary
Battery
DC-DC
Converter
for EPS and
Active
Stabilizer
Suspension
System
Fuel T ank
and Fuel
Lines
*Numbers in the component column apply to the illustrations on the following page.
Transmission 3-phase high voltage AC permanent magnet electric motor
contained in the transmission and drives the four wheels through
the transfer case and propeller shafts.
Engine Compartment 3-phase high voltage AC electrically driven motor compressor.
Inside HV Battery
Pack in Trunk
On HV Battery Pack Converts 288 Volts from the HV battery pack to 46 Volts for EPS
Undercarriage, Driver
Side and Center
Converts 288 Volts from the HV battery pack to 12 Volts for low
voltage vehicle power.
and active stabilizer suspension system power. Dull yellow
colored sheathing identifies 46 Volt wires that are routed under the
vehicle body to power the EPS and the active stabilizer
suspension system.
The fuel tank provides gasoline via fuel lines to the engine. The
source fuel lines are routed under the vehicle along the cent er
tunnel and the return line is routed along the driver side under the
floor pan.
6
Specifications
Gasoline Engine: 390 hp (290 kW), 5.0-liter Aluminum Alloy Engine
Electric Motor: 221 hp (165 kW), Permanent Magnet Motor
Transmission: Automatic Only
HV Battery: 288 Volt Sealed NiMH
Curb Weight: 5,004-5,357 lbs/2,270-2,430 kg
Fuel Tank: 18.5 Imp gals, 22.1 US gals/84 liter
Frame Material: Steel Unibody, Steel Panels and Aluminum Engine Hood
This illustration is for an LHD model.
Battery
Power Cables
7
Lexus Synergy Drive Operation
Once the READY indicator is illuminated in the instrument cluster, the vehicle may be
driven. However, the gasoline engine does not idle like a typical automobile and will
start and stop automatically. It is important to recognize and understand the READY
indicator provided in the instrument cluster. When illuminated, it informs the driver
that the vehicle is on and operational even though the gasoline engine may be off and
the engine compartment is silent.
Vehicle Operation
• With the LS600h/LS600hL, the gasoline engine may stop and start at any time while the
READY indicator is on.
• Never assume that the vehicle is shut off just because the engine is off. Always look for
the READY indicator status. The vehicle is shut off when the READY indicator is off.
The vehicle may be powered by:
1. The electric motor only.
2. The gasoline engine only.
3. A combination of both the electric motor and the gasoline engine.
Instrument Cluster READY Indicator
8
Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery
•
The LS600h/LS600hL features a high voltage Hybrid Vehicle (HV) battery pack that contains
sealed Nickel Metal Hydride (NiMH) battery modules.
HV Battery Pack
• The HV battery pack is enclosed in a metal case and is securely mounted in the trunk area
behind the rear seat. The metal case is isolated from high voltage and concealed by fabric
covers.
• The HV battery pack consists of 20 low voltage (14.4 Volt) NiMH battery modules
connected in series to produce approximately 288 Volts. Each NiMH battery module is
non-spillable and sealed in a metal case.
• The electrolyte used in the NiMH battery modules is an alkaline mixture of potassium and
sodium hydroxide. The electrolyte is absorbed into the battery cell plates and will not
normally leak, even in a collision.
• In the unlikely event that the battery pack is overcharged, the modules vent gases directly
outside the vehicle through a vent hose.
HV Battery Pack
Battery pack voltage
Number of NiMH battery modules in the pack
NiMH battery module voltage
NiMH battery module dimensions
(16 x 542 x 96 mm)
288 V
20
14.4 V
1 x 21 x 4 in.
NiMH module weight
NiMH battery pack dimensions
NiMH battery pack weight
Components Powered by the HV Battery Pack
• Electric Motor
• Inverter/Converter • Electric Generator
• A/C Compressor
• DC-DC Converter for 12 Volt Auxiliary Battery
• DC-DC Converter for EPS and Active Stabilizer Suspension System
4.8 lbs (2.2 kg)
17 x 33x 17.3 in
(432 x 842 x 439 mm)
174 lbs
(78.9 kg)
Power Cables
9
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