2012 TOYOTA HIGHLANDER ECU

507
4-3. Do-it-yourself maintenance
4
Maintenance and care
9 DOOR NO.2 25 A Power windows
10 AM1 7.5 A Starting system 11 P/SEAT (PS) 30 A Power seat
12 A/C NO.1 10 A Air conditioning system
13 FUEL OPN 7.5 A No circuit
14 S/ROOF 20 A Electric moon roof
15 TAIL 15 A Parking lights, tail lights, license
plate lights, fog lights, trailer lights
16 PANEL 7.5 A Glove box light, instrument panel
lights, switch illumination
17 ECU IG NO.1 10 A Multiplex communication system,
electric moon roof, electronically
controlled automatic transmission
system, power back door, seat
heaters, tire pressure warning sys-
tem, electric power steering, anti-
glare inside rear view mirror, shift
lock system, tire pressure warning
system
18 ECU IG NO.2 7.5 A Enhanced vehicle stability control
system
19 A/C NO.2 10 A Air conditioning system
20 WASH 20 A Windshield and rear window
washer
21 S-HTR 20 A Seat heaters
FuseAmpereCircuit

508 4-3. Do-it-yourself maintenance
22 GAUGE NO.1 10 AAudio system, back-up lights,
charging system, emergency flash-
ers, traction control system, wind-
shield wiper de-icer, air
conditioning system, charging sys-
tem, rear view monitor system,
trailer lights, multiport fuel injection
system/sequential multiport fuel
injection system
23 FR WIP 30 A Windshield wipers and washer
24 RR WIP 15 A Rear window wiper and washer
25 IGN 10 A Multiport fuel injection system/
sequential multiport fuel injection
system, steering lock system,
smart key system, SRS airbag sys-
tem
26 GAUGE NO.2 7.5 A Gauges and meters, rear view
monitor system
27 ECU-ACC 7.5 A Outside rear view mirrors, shift lock
system, smart key system, multi-
plex communication system
28 ACC SOCK
NO.1 15 A Power outlet
29 ACC SOCK
NO.2 15 A Power outlet
30 RADIO NO.2 7.5 A Audio system, clock, rear seat
entertainment system, interior
lights, personal lights
FuseAmpereCircuit

516 4-3. Do-it-yourself maintenance
■High mounted stoplight and outer foot lights
If the high mounted stoplight or outer foot light has burnt out, have
it replaced by your Toyota dealer.
■Condensation build-up on th e inside of the lens
Contact your Toyota dealer for more information in the following situations.
Temporary condensation build-up on the inside of the headlight lens does
not indicate a malfunction.
● Large drops of water are built up on the inside of the lens.
● Water has built up inside the headlight.
■ LED high mounted stoplight
The high mounted stoplight consists of a number of LEDs. If any of the LEDs
burn out, take your vehicle to your Toyota dealer to have the light replaced.
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.

520 5-1. Essential information
Emergency towingIf a tow truck is not available, in an emergency your vehicle may be
temporarily towed using a cable or chain secured to the emergency
towing eyelet(s). This should only be attempted on hard surfaced
roads for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
Towing eyelets
■Emergency towin g procedure
Release the parking brake.
Shift the shift lever to N.
Vehicles without smart key system:
Turn the engine switch to “ACC” (engine off) or “ON” (engine run-
ning) position.
Vehicles with smart key system:
Turn the “ENGINE START STOP” switch to ACCESSORY (engine
off) or IGNITION ON (engine running) mode.
STEP1
STEP2
STEP3

522 5-1. Essential information
Tighten down the towing eyelet
securely using a wheel nut
wrench.STEP3
■Location of the emer gency towing eyelet
P. 540
CAUTION
■ Installing towing eyelet to the vehicle
Make sure that towing eyelet is installed securely.
If not securely installed, towing eyelet may come loose during towing. This
may lead to accidents that cause serious injury or even death.

530 5-2. Steps to take in an emergency
(U.S.A.)
(Canada) ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.
Electric power steering warning light Indicates a malfunction in the EPS (Electric Power Steer-
ing) system.
Slip indicator light
Indicates a malfunction in:
• The Enhanced VSC system;
• The TRAC system;
• The hill-start assist control system; or
• The downhill assist control system (4WD models).
(Flashes) Cruise control indicator
light (if equipped)
Indicates a malfunction in the cruise control system.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank low or empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
Warning lightWarning light/Details

5
When trouble arises
541
5-2. Steps to take in an emergency
Taking out the jack
Remove the right side deck
board.
Unhook the tightening strap and
remove the pad.
After storing the jack, make
sure it is securely held by the
tightening strap.
Loosen
Tighten
STEP1
STEP2
STEP3

5
When trouble arises
551
5-2. Steps to take in an emergency
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to
the vehicle suddenly falling off the jack.
●Do not use the tire jack for any pu
rpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes wi th this vehicle for replacing a flat
tire.
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a hei ght greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle will be injured.