2010 TOYOTA RAV4 VSC

185
2-4. Using other
driving systems
2
When driving
■EPS operation sound
When the steering wheel operates, a motor sound (whirring sound) may be
heard.
This does not indicate a malfunction.
■ Reduced effectiveness of EPS
The effectiveness of EPS is reduced to prevent the system from overheating
when there is frequent steering input over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from
excessive steering input or stop the vehicle and turn the engine off. The sys-
tem should return to normal within 10 minutes.
■ If the slip indicator comes on
It may indicate a malfunction in the Enhanced VSC, TRAC and AUTO LSD
function. Contact your Toyota dealer.
CAUTION
■The ABS does not opera te effectively when
● Tires with inadequate gripping ability are used (such as excessively worn
tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or slick road.
■ Stopping distance when the ABS is ope rating on the wet or slick roads
The ABS is not designed to shorten the vehicle's stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following situ-
ations.
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven roads
■ TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.

186 2-4. Using other driving systems
CAUTION
■When the Enhanced VSC is activated
The slip indicator flashes and a warning buzzer sounds. Always drive care-
fully. Reckless driving may cause an accident. Exercise particular care when
the indicator light flashes and a buzzer sounds.
■ When TRAC and Enhanced VSC are off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are systems to ensure vehicle stability and driving force, do
not turn off TRAC and Enhanced VSC unless necessary.
■ Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total
load capacity. In addition, make sure that the tires are inflated to the appro-
priate tire pressure level.
The ABS and Enhanced VSC systems will not function correctly if different
tires are fitted on the vehicle.
Contact your Toyota dealer for further information when replacing tires or
wheels.
■ Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause the system to malfunction.

192
2-4. Using other driving systems
Four-wheel drive lock switch (4WD models)
■Four-wheel drive lock mode can be operated when
Vehicles without smart key system
The engine switch is in the “ON” position. Vehicles with smart key system
The “ENGINE START STOP” switch is in IGNITION ON mode.
■ Four-wheel drive lock mode
●Four-wheel drive lock mode is canceled when the brakes are applied to
ensure the ABS and Enhanced VSC systems operate effectively.
● Four-wheel drive lock mode is canceled when the vehicle speed exceeds
25 mph (40 km/h).
Four-wheel drive lock mode can be used when a large amount of
drive power needs to be applied to all the wheels, such as when the
vehicle gets stuck in mud and you need to free it.
Press the switch.
The torque of the engine is dis-
tributed to the rear wheels to
the maximum extent possible
in accordance with driving con-
ditions.
Pressing the switch again can-
cels four-wheel drive lock
mode and returns the active
torque control 4WD system to
normal mode. (P. 180)

389
4-3. Do-it-yourself maintenance
4
Maintenance and care
8 ECU-B
10 AGauges and meters, clock, main
body ECU, wireless remote control,
smart key system, audio system,
front passenger occupant classifi-
cation system, ABS, TRAC,
Enhanced VSC, AUTO LSD, down-
hill assist control system, hill-start
assist control system, Active torque
control 4WD system
9 DOME 10 AVanity lights, personal/interior
lights, interior light, luggage com-
partment light, engine switch light,
foot lights
10 H-LP LH 10 A Left-hand headlight (high beam)
11 H-LP RH 10 A Right-hand headlight (high beam)
12 H-LP LL 10 A Left-hand headlight (low beam)
13 H-LP RL 10 A Right-hand headlight (low beam)
14 AC INV 15 A AC inverter
15 TOWING*
130 A No circuit
16 DEICER 20 A Windshield wiper deicer
17 HTR 50 A Air conditioning system
18 PTC NO.3 50 A No circuit
19 PTC NO.2 50 A No circuit
20 PTC NO.1 50 A No circuit
21 HEAD MAIN 50 A H-LP LH, H-LP RH, H-LP LL,
H-LP RL fuses
22 RDI*
230 A
Electric cooling fan
FA N 2 *
150 A
FuseAmpereCircuit

391
4-3. Do-it-yourself maintenance
4
Maintenance and care
6 AM2-2
7.5 A Starting system
7 EFI NO.1 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
8 EFI NO.2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
9 EFI NO.3 7.5 A No circuit
10 GROW 80 A No circuit
11 EPMS 60 A Electric power steering system
12 MAIN 80 AHEAD MAIN, ECU-B2, ALT-S, STR
LOCK, DOME, ECU-B, RAD NO.1
fuses
13 ALT 120 A
*1ABS 1, ABS 2, RDI*3, CDS*3,
FA N 1*4, AC INV, TOWING, HTR,
DEICER fuses
140 A
*2ABS 1, ABS 2, FAN 1, FAN 2, AC
INV, TOWING, HTR, DEICER fuses
14 P/I 50 A EFI MAIN, HORN, A/F, fuses
15 ABS2 30 A ABS, TRAC, Enhanced VSC,
AUTO LSD function, downhill
assist control system, hill-start
assist control system
16 ABS1 50 A ABS, TRAC, Enhanced VSC,
AUTO LSD function, downhill
assist control system, hill-start
assist control system
17 EFI MAIN 20 A Multiport fuel injection system/
sequential multiport fuel injection
system, EFI NO.1, EFI NO.2, fuses
18 HORN 10 A Horn
19 EDU 25 A No circuit
FuseAmpereCircuit

393
4-3. Do-it-yourself maintenance
4
Maintenance and care
9 ACC
7.5 AAudio system, power outlets,
power rear view mirror control,
automatic transmission shift lock
system, main body ECU, clock,
smart key system
10 MIR HTR 10 A Outside rear view mirror defoggers
11 PWR OUTLET 15 A Power outlet
12 RR FOG 10 A No circuit
13 IGN 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, steering lock system, front
passenger occupant classification
system, smart key system, SRS
airbag system
14 GAUGE 2 7.5 A Gauges and meters
15 S-HTR 15 A Seat heaters
16 FR WIP 25 A Windshield wipers
17 RR WIP 15 A Rear window wiper
18 WSH 15 AWindshield washer, rear window
washer
19 ECU IG 1 10 AElectric cooling fan, ABS, TRAC,
Enhanced VSC, AUTO LSD func-
tion, downhill assist control system,
hill-start assist control system,
active torque control 4WD system,
automatic transmission shift lock
system, air conditioning system,
main body ECU, electric moon
roof, stop/tail lights, electric power
steering system, clock, AC inverter,
auto anti-glare inside rear view mir-
ror
20 ECU IG 2 10 AAir conditioning system, rear win-
dow defogger, emergency flashers
FuseAmpereCircuit

394 4-3. Do-it-yourself maintenance
*: Vehicles without smart key system
21 OBD7.5 A On-board diagnosis system
22 STOP 10 AStop/tail lights, high mounted stop-
light, automatic transmission shift
lock system, multiport fuel injection
system/sequential multiport fuel
injection system, ABS, TRAC,
Enhanced VSC, AUTO LSD sys-
tem, downhill assist control system,
hill-start assist control system
23 DOOR 25 AMain body ECU, power door lock
system
24 ACC-B 25 A ACC, CIG, fuses
25 4WD 7.5 A Active torque control 4WD system
26 FR FOG 15 A Front fog lights
27 AM1* 7.5 A Starting system
28 DEF 30 ARear window defogger, MIR HTR
fuse
29 P/SEAT 30 A Power seat
30 POWER 30 A Power windows
FuseAmpereCircuit

420 5-2. Steps to take in an emergency
(U.S.A.)
(Canada) “ABS” warning light
Indicates a malfunction in:
• The ABS;
• The brake assist system.
Electric power steering warning light
Indicates a malfunction in the EPS (Electric Power Steering)
system.
(Flashes) Cruise control indicator light
Indicates a malfunction in the cruise control system.
Slip indicator light
Indicates a malfunction in:
• The Enhanced VSC;
• The TRAC;
• The AUTO LSD function;
• The hill-start assist control; and
• The downhill assist control system.
(Comes on) Active torque control 4WD system warning light (4WD
models)
Indicates a malfunction in the active torque control 4WD
system.
(When the light flashes.
P. 421)
Warning lightWarning light/Details