sensor TOYOTA AVENSIS 2011 Service Manual

333
2-4. Using other driving systems
2
When driving
AVENSIS_EE (OM20B44E)
PCS (Pre-Crash Safety)
: If equipped
When the radar sensor detects possibility of a frontal collision, the
pre-crash safety systems such as the brakes and seat belts are
automatically engaged to lessen impact and injuries to occupants
as well as vehicle damage.
Pre-crash seat belts
If the pre-crash sensor detects that a collision is unavoidable,
the pre-crash safety system will retract the seat belt before the
collision occurs.
The same will happen if the driver makes an emergency braking
or loses control of the vehicle. (P. 110)
However, when the VSC system is disabled, the system will not
operate in the event of skidding.
Pre-crash brake assist
When there is a high possibility of a frontal collision, the system
applies greater braking force in relation to how strongly the
brake pedal is depressed.
Pre-crash braking
When there is a high possibility of a frontal collision, the system
warns the driver using a warning light, warning display and
buzzer. If the system determines that a collision is unavoidable,
the brakes are automatically applied to reduce the collision
speed. Pre-crash braking can be disabled using the pre-crash
braking OFF switch.

334 2-4. Using other driving systems
AVENSIS_EE (OM20B44E)
Disabling pre-crash braking
Type A
Disabled
Enabled
The “PCS” warning light will turn
on when the pre-crash braking is
disabled.
Type B
Disabled
Enabled
The “PCS” warning light will turn
on when the pre-crash braking is
disabled.
Radar sensor
Detects vehicles or other obsta-
cles on or near the road ahead
and determines whether a colli-
sion is imminent based on the
position, speed, and heading of
the obstacles.

335 2-4. Using other driving systems
2
When driving
AVENSIS_EE (OM20B44E)
Obstacles not detected
The sensor cannot detect plastic obstacles such as pylons. There may also
be occasions when the radar sensor cannot detect pedestrians, animals,
bicycles, motorcycles, trees, or snowdrifts.
The pre-crash safety is operational when
Pre-crash seat belts (Type A):
• Vehicle speed is greater than about 30 km/h (19 mph).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
Pre-crash seat belts (Type B):
• Vehicle speed is above 5 km/h (4 mph).
• The relative speed difference between your vehicle and another vehi-
cle that is ahead of your vehicle, or the speed at which your vehicle is
approaching an obstacle is greater than 30 km/h (19 mph).
• The front occupants are wearing a seat belt.
Pre-crash brake assist:
• Vehicle speed is above 30 km/h (19 mph).
• The relative speed difference between your vehicle and another vehi-
cle that is ahead of your vehicle, or the speed at which your vehicle is
approaching an obstacle is greater than 30 km/h (19 mph).
• The brake pedal is depressed.
Pre-crash braking:
• The pre-crash braking OFF switch is not pressed.
• Vehicle speed is above 15 km/h (10 mph).
• The relative speed difference between your vehicle and another vehi-
cle that is ahead of your vehicle, or the speed at which your vehicle is
approaching an obstacle is greater than 15 km/h (10 mph).

340 2-4. Using other driving systems
AVENSIS_EE (OM20B44E)
CAUTION
Handling the radar sensor
Observe the following to ensure the pre-crash safety system can function
effectively.
Keep the sensor and grille cover clean at all time.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.
Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may become
inaccurate or malfunction. If the sensor or surrounding area is subject to a
strong impact, always have the area inspected and adjusted by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
Do not disassemble the sensor.
Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
Do not modify or paint the sensor and grille cover.
Limitations of the pre-crash safety system
Do not rely on the pre-crash safety system. Always drive safely, taking care
to observe your surroundings and checking for any obstacles or other road
hazards.
Failure to do so may cause an accident resulting in death or serious injury.

518 4-1. Maintenance and care
AVENSIS_EE (OM20B44E)
CAUTION
Caution about the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until it has cooled
sufficiently, as touching a hot exhaust pipe can cause burns.
When cleaning the windshield (vehicles with rain-sensing windshield
wipers)
When the upper part of the windshield where the raindrop sensor is
located is touched by hand
When a wet rag or similar is held close to the raindrop sensor
If something bumps against the windshield
If you directly touch the raindrop sensor body or if something bumps into
the raindrop sensor
Set the wiper switch to off.
If the wiper switch is in “AUTO”, the wip-
ers may operate unexpectedly in the fol-
lowing situations, and may result in hands
being caught or other serious injuries and
cause damage to the wiper blades.
Off

576 4-3. Do-it-yourself maintenance
AVENSIS_EE (OM20B44E)
18 DOOR NO.2 25 A Power door lock system
19EFI MAIN
NO.2
*17.5 AMultiport fuel injection system/
sequential multiport fuel injection
system
20 ECU-B2 10 ASmart entry & start system, air con-
ditioning system, power windows,
power seat
21 ECU-B 10 AGauges and meters, main body
ECU, steering sensor, wireless
remote control, smart entry & start
system, tilt and telescopic steering
22 RAD NO.1 15 A Audio system
23 DOME 10 ATrunk/luggage compartment light,
vanity lights, front door courtesy
lights, personal/interior lights, per-
sonal lights, foot lights
24 AM2 NO.2 7.5 A Starting system
25 TURN-HAZ 10 ATurn signal lights, emergency
flashers
26 ETCS
*210 A Electronic throttle control system
27 AM2 30 A Starting system
28 STRG LOCK 20 A Steering lock system
FuseAmpereCircuit

579 4-3. Do-it-yourself maintenance
4
Maintenance and care
AVENSIS_EE (OM20B44E)Under the instrument panel (type A)
FuseAmpereCircuit
1TAIL 10 AFront position lights, tail lights,
license plate lights, rear fog light,
front fog lights, manual headlight
leveling dial, instrument panel
lights, air conditioning system
switch, audio system, Multidrive or
automatic transmission shift lever
illumination, glove box light, airbag
manual on-off system, emergency
flashers, cigarette lighter, “AFS
OFF” switch, speed limiter switch,
electric parking brake switch, steer-
ing switch, VSC OFF switch,
Toyota parking assist-sensor
switch, “LKA” switch, seat heater
switch, “SPORT” switch, outside
rear view mirror switches, fuel filler
door opener switch

580 4-3. Do-it-yourself maintenance
AVENSIS_EE (OM20B44E)
2 ECU-IG NO.3 10 AToyota parking assist-sensor, AFS,
windshield wiper de-icer, electric
parking brake, pre-crash seat belt,
paddle shift switch, tilt & telescopic
steering, electric power steering
3 P FR DOOR 20 A Power windows (passenger side)
4 RL DOOR 20 A Power windows (rear left)
5 RR DOOR 20 A Power windows (rear right)
6 SHADE 20 A Panoramic roof shade
*1
7 CIG 15 A Cigarette lighter
8ACC 7.5 AOutside rear view mirrors, shift lock
system, audio system, main body
ECU, power outlet
9 MIR HTR 10 A Outside rear view mirror defoggers
10 TI & TE 30 A Tilt & telescopic steering
11 RR FOG 7.5 A Rear fog light
12 IGN 7.5 ASteering lock system, SRS airbag
system, multiport fuel injection sys-
tem/sequential multiport fuel injec-
tion system, automatic
transmission
*2, starting system
FuseAmpereCircuit

581 4-3. Do-it-yourself maintenance
4
Maintenance and care
AVENSIS_EE (OM20B44E)
13 METER 7.5 A Gauges and meters
14 SEAT HTR 15 A Seat heaters
15 HTR-IG 10 A Air conditioning system
16 WIPER 30 AWindshield wipers, rain sensing
windshield wipers
17 RR WIPER 15 A Rear window wiper
*1
18 WASHER 15 AWindshield washers, rear window
washer*1
19 ECU-IG NO.1 10 AMain body ECU, smart entry & start
system, electric cooling fan(s), shift
lock system, panoramic roof
shade
*1, auto anti-glare inside rear
view mirror, anti-lock brake system,
steering sensor, yaw rate & G sen-
sor, VSC, headlight cleaner, pre-
crash safety system, LKA, driver
support system
20 ECU-IG NO.2 10 ABack-up lights, charging system,
emergency flashers, rear window
defogger, “PASSENGER AIRBAG”
indicator, air conditioning system,
AFS, rear view monitor, Toyota
parking assist-sensor
21 OBD 7.5 A On-board diagnosis system
FuseAmpereCircuit

5
623 5-2. Steps to take in an emergency
When trouble arises
AVENSIS_EE (OM20B44E)
If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle
immediately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
Front passenger detection sensor, seat belt reminder and warning
buzzer
If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash and the warning
buzzer to sound even if a passenger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.