2006 TOYOTA HIGHLANDER HYBRID wiring

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Road accident cautions
CAUTION
Pull your vehicle off the road, put the transmis-
sion in the “P” position, apply the parking brake, turn the hybrid system off and remove the key.
In order to avoid personal injuries, do not touch
high voltage wiring, connectors and high voltage parts (inverter unit, traction battery and etc.).
If exposed electric wires are protruding inside or
outside of your vehicle, an electric shock may oc- cur. Never touch the electric wires.
If fluid leaks or gets into some parts of the ve-
hicle, never touch it because it may be strong al-
kaline electrolyte from the traction battery. If it
contacts your skin or eyes, wash it off immediate-
ly with a large amount of water or if possible,
boric acid solution. Get immediate medical atten- tion in order to help avoid serious injury.
If a fire occurs in the hybrid vehicle, leave the
vehicle as soon as possible. Never use a fire ex-
tinguisher that is not meant for use on electric
fires. Using a small amount of water may be also dangerous.
If your vehicle needs to be towed, do it with the
front wheels raised (front wheel drive models) or
all four wheels raised (all wheel drive models). If
the wheels with the traction motor are on the
ground when towing, the motor may continue to
generate electricity. This may cause the electricity
leakage. Depending on the severity of the damage,
electricity leakage may cause fire. See “If your
vehicle needs to be towed” on page 354 in Section 4.

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
CAUTION
Pull your vehicle off the road, put
the transmission in the “P” posi-
tion, apply the parking brake, turn
the hybrid system off and remove
the key.
In order to avoid personal injuries,
do not touch high voltage wiring,
connectors or high voltage parts
(inverter unit, traction battery and
etc.).
If exposed electric wires are pro-
truding inside or outside of your
vehicle, an electric shock may oc-
cur. Never touch the electric wires.
If fluid leaks or gets into some
parts of the vehicle, never touch it
because it may be strong alkaline
electrolyte from the traction battery.
If it contacts your skin or eyes,
wash it off immediately with a large
amount of water or if possible, bo-
ric acid solution. Get immediate
medical attention in order to help
avoid serious injury.
If a fire occurs in the hybrid ve-
hicle, leave the vehicle as soon as
possible. Never use a fire extin-
guisher that is not meant for elec-
tric fires. Using a small amount of
water may be also dangerous.
If your vehicle needs to be towed,
do it with the front wheels raised
(front wheel drive models) or all
four wheels raised (all models). If
the wheels with the traction motor
are on the ground when towing, the
motor may continue to generate
electricity. This may cause the elec-
tricity leakage. Depending on the
severity of the damage, electricity
leakage may cause fire. See “If your
vehicle needs to be towed” on page
354 in Section 4.
The emergency shut off system blocks
off the high voltage current and stops
the fuel pump to minimize the risk of
the electric leakage and the fuel leak-
age when a certain level of impact is
detected by the impact sensor. If the
system activates, your vehicle will not
restart. To restart the hybrid system,
contact a Toyota dealer.
CAUTION
Check to see if there are exposed
high voltage parts and cables. Nev-
er touch the parts and cables. See
“—High voltage components” on
page 6 in this Section for the loca-
tions of the high voltage parts and
cables.
Inspect the ground under the ve-
hicle. If you find that liquid has
leaked onto the ground, the fuel
system may have been damaged.
Leave the vehicle as soon as pos-
sible.
Road accident cautions— —Emergency shut off system

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
The seat belt pretensioner system con-
sists mainly of the following components
and their locations are shown in the il-
lustration.
1. Front airbag sensors
2. SRS warning light
3. Front passenger occupant classification system (ECU and sensors)
4. Seat belt pretensioner assemblies
5. Front passenger ’s seat belt buckle switch
6. Airbag sensor assembly The seat belt pretensioners are controlled
by the airbag sensor assembly. The airbag
sensor assembly consists of a safing sen-
sor and airbag sensor.
When the seat belt pretensioners are acti-
vated, an operating noise may be heard
and a small amount of non
−toxic gas may
be released. This does not indicate that
a fire is occurring. This gas is normally
harmless.
Once the seat belt pretensioners have
been activated, the seat belt retractors
remain locked.CAUTION
Do not modify, remove, strike or open
the seat belt pretensioner assemblies,
airbag sensor or surrounding area or
wiring. Failure to follow these instruc-
tions may prevent the seat belt pre-
tensioners from activating correctly,
cause sudden operation of the system
or disable the system, which could
result in death or serious injury. Con-
sult your Toyota dealer about any re-
pair and modification.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
seat belt pretensioners in some
cases.
 Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Repairs on or near the front seat
belt retractor assemblies
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
 Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure or con-
sole

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
This indicator comes on when the igni-
tion key is turned to the “ON” position.
It goes off after about 6 seconds. This
means the seat belt pretensioners are
operating properly. This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system, “AIRBAG ON” indi-
cator light, “AIRBAG OFF” indicator light,
front passenger ’s seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, warning light, interconnecting wiring
and power sources. (For details, see “Ser-
vice reminder indicators and warning buzz-
ers” on page 144 in Section 1−
6.)
If any of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
The light does not come on when the
ignition key is turned to the “ON” posi-
tion or remains on for more than 6
seconds or flashes.
The light comes on or starts flashing
while driving.
If any seat belt does not retract or
cannot be pulled out due to a malfunc-
tion or activation of the relevant seat
belt pretensioner.
The seat belt pretensioner assembly or
surrounding area has been damaged.
In the following cases, contact your Toyota
dealer as soon as possible:
The front of the vehicle (shaded in the
illustration) was involved in an accident
that was not severe enough to cause
the seat belt pretensioners to operate.
Either seat belt pretensioner assembly
or surrounding area is scratched,
cracked, or otherwise damaged.

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS front airbag system in some
cases.
Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
 Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger airbag
This indicator comes on when the igni-
tion key is turned to the “ON” position.
It goes off after about 6 seconds. This
means the SRS front airbags are oper-
ating properly. This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system, “AIRBAG ON” indi-
cator light, “AIRBAG OFF” indicator light,
front passenger ’s seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, warning light, interconnecting wiring
and power sources. (For details, see “Ser-
vice reminder indicators and warning buzz-
ers” on page 144 in Section 1
−6.)
If either of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
The light does not come on when the
ignition key is turned to the “ON” posi-
tion or remains on for more than 6
seconds or flashes.
The light comes on or starts flashing
while driving.

’06 HIGHLANDER HB_U (L/O 0503)
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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
This indicator comes on when the igni-
tion key is turned to the “ON” position.
It goes off after about 6 seconds. This
means the SRS side airbags and curtain
shield airbags are operating properly. This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system, “AIRBAG ON” indi-
cator light, “AIRBAG OFF” indicator light,
front passenger ’s seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, warning light, interconnecting wiring
and power sources. (For details, see “Ser-
vice reminder indicators and warning buzz-
ers” on page 144 in Section 1−
6.)
If either of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
The light does not come on when the
ignition key is turned to the “ON” posi-
tion or remains on for more than 6
seconds or flashes.
The light comes on or starts flashing
while driving. If the light stays on, it indicates that the
SRS driver and front passenger airbag
system and/or front passenger occupant
classification system and “AIRBAG ON”
and “AIRBAG OFF” indicator lights have a
problem. If the light flashes, the SRS side
airbag system and/or curtain shield airbag
system have a problem.
The SRS warning light and “AIRBAG OFF”
indicator light will come on if there is a
malfunction in the front passenger occu-
pant classification system.

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
(k) SRS Warning Light
This light will come on when the igni-
tion key is turned to the “ON” position.
After about 6 seconds, the light will go
off. This means the systems of the air-
bag and front seat belt pretensioners
are operating properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system, “AIRBAG ON” indi-
cator light, “AIRBAG OFF” indicator light,
front passenger ’s seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, warning light, interconnecting wiring
and power sources.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle.
The light does not come on when the
ignition key is turned to the “ON” posi-
tion or remains on for more than 6
seconds or flashes.
The light comes on or flashes while
driving. If the light stays on, it indicates that the
SRS driver and front passenger airbag
system and/or front passenger occupant
classification system and “AIRBAG ON”
and “AIRBAG OFF” indicator lights have a
problem. If the light flashes, the SRS side
airbag system and/or curtain shield airbag
system have a problem.
(l) Master Warning Light
If the master warning light comes on, a
message appears on the multi
−information
display. Depending on the conditions a
warning tone may sound. (See “—Warning
messages” on page 155 in this Section for
instructions.)
(m) Key Reminder Buzzer
This buzzer acts as a reminder to remove
the key when you open the driver’s door
with the ignition key in the “ACC” or
“LOCK” position. CHECKING SERVICE REMINDER
INDICATORS (except the low fuel level
warning light and master warning light)
1. Apply the parking brake.
2. Open one of the side doors or back door.
The open door warning light should
come on.
3. Close the door. The open door warning light should go
off.
4. Turn the ignition key to “ON”, but do not start the hybrid system.
All the service reminder indicators ex-
cept the open door warning light should
come on. The SRS warning light goes
off after about 6 seconds.
5. Turn the ignition key to the “START” position briefly and firmly.
All of the service reminder indicators ex-
cept the red brake system warning light
and driver ’s seat belt reminder light go off
when the “READY” light comes on.
The driver ’s seat belt reminder light goes
off when the driver ’s seat belt is fastened.
The red brake system warning light goes
off when the parking brake is released.

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
BRAKES AND SAFETY CHAINS
Toyota recommends trailers with
brakes that conform to any applica-
ble federal and state/provincial regu-
lations.
A safety chain must always be used
between the towing vehicle and the
trailer. Leave sufficient slack in the
chain for turns. The chain should
cross under the trailer tongue to
prevent the tongue from dropping to
the ground in case it becomes dam-
aged or separated. For correct safety
chain procedures, follow the hitch or
trailer manufacturer ’s recommenda-
tions.
CAUTION
If the total trailer weight exceeds
453 kg (1000 lb.), trailer brakes are
required.
Never tap into your vehicle’s hy-
draulic system as it would lower its
braking effectiveness.
Never tow a trailer without using a
safety chain securely attached to
both the trailer and the vehicle. If
damage occurs to the coupling unit
or hitch ball, there is danger of the
trailer wandering over into another
lane.
TIRES
Ensure that your vehicle’s tires are
properly inflated. See page 391 in Sec-
tion 7−2 and page 415 in Section 8 for
instructions.
The trailer tires should be inflated to
the pressure recommended by the trail-
er manufacturer in respect to the total
trailer weight.TRAILER LIGHTS
Your vehicle is equipped with a wire
harness stored in the rear end under
body. Some models are fitted with a
socket for trailer lights under the rear
bumper. Use either of them to connect
and operate the trailer lights. However,
the trailer lights must comply with fed-
eral, state/provincial and local regula-
tions. See your local recreational ve-
hicle dealer or rental agency for the
correct type of wiring and relays for
your trailer. Check for correct operation
of the turn signals and stop lights each
time you hitch up. Direct splicing may
damage your vehicle’s electrical system
and cause a malfunction of your lights.