2006 TOYOTA HIGHLANDER HYBRID brake sensor

’06 HIGHLANDER HB_U (L/O 0503)
v
2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Event data recorder
Your vehicle has computers that monitor and control cer-
tain aspects of your vehicle. These computers assist in
driving and maintaining optimal vehicle performance. Be-
sides storing data useful for troubleshooting, there is a
system to record data in a crash or a near car crash
event. This is called an Event Data Recorder (EDR).
The SRS airbag sensor assembly contains the EDR. In a
crash or a near car crash event, this device may record
some or all of the following information:
 Gasoline engine speed
 Whether the brake pedal was applied or not
 Vehicle speed
 To what extent the accelerator pedal was depressed
 Position of the transmission selector lever
 Whether the driver and front passenger wore the seat
belts or not
 Driver ’s seat position
 Front passenger ’s occupant classification
SRS airbag deployment data
 SRS airbag system diagnostic data
The Electronic Control Unit (ECU) of the electronically
controlled brake (ECB) may contain another EDR. There
are a variety of driving situations which include activating
the ECB under which the ECB EDR will record certain
information. The ECB EDR may record some or all of the
following information:
 Behavior of the vehicle
 Steering wheel angle
 Vehicle speed
 To what extent the accelerator pedal was depressed
 To what extent the brake pedal was applied
 To what extent the ECU controlled the condition of
the 4 wheels
 Vehicle stability control diagnostic data

’06 HIGHLANDER HB_U (L/O 0503)
11
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

’06 HIGHLANDER HB_U (L/O 0503)
150
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.