2008 TOYOTA HIGHLANDER horn

460 4-3. Do-it-yourself maintenance
26 RADIO115 A Audio system
27 ECU-B 10 ASteering sensor, gauges and
meters, clock, air conditioning sys-
tem, main body ECU, wireless
remote control, smart key system,
power back door, on-board diagno-
sis system
28 DOME 10 AVanity lights, personal lights, inte-
rior light, gauges and meters,
engine switch light, door courtesy
lights, power back door
29 AMP 15 A Audio system
30 TOWING 30 A Trailer lights
31 IG2 25 A INJ NO.1, INJ NO.2
32 STR LOCK 20 A Steering lock system
33 EFI MAIN 25 A EFI NO.2, EFI NO.3
34 HAZ 15 A Turn signal lights
35 G/H 10 APower door lock system, multiplex
communication system
36 ALT-S 7.5 A Charging system
37 AM2 7.5 A Multiplex communication system
38 H-LP LH 15 A Left-hand headlight (high beam)
39 H-LP RH 15 A Right-hand headlight (high beam)
40 H-LP LL 15 A Left-hand headlight (low beam)
41 H-LP RL 15 A Right-hand headlight (low beam)
42 HORN 10 A Horn
43 EFI NO.1 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, smart key system
FuseAmpereCircuit

461
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type B (if equipped)
44 ETCS
10 AMultiport fuel injection system/
sequential multiport fuel injection
system, electronic throttle control
system
45 A/F 20 A Air fuel ratio sensor
46 S-HORN 7.5 A Horn
FuseAmpereCircuit
1 INV-W/P 15 A No circuit
2 IGCT NO.2 7.5 A No circuit
3 A/C-D 10 A No circuit
FuseAmpereCircuit

510
5-2. Steps to take in an emergency
If the engine will not star t
If the engine still does not start after following the correct starting
procedure (P. 164, 168) or releasing the steering lock ( P. 166,
169), confirm the fo llowing points.
■The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( P. 164, 168)
● There may be a malfunction in the engine immobilizer system.
(  P. 1 1 0 )
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
●The battery may be discharged. ( P. 516)
● The battery terminal connec tions may be loose or corroded.
■ The starter motor does not turn over (vehicles with smart
key system).
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
(  P. 511)

5
When trouble arises
511
5-2. Steps to take in an emergency
Emergency start function (vehicles with smart key system)
When the engine does not start, the following steps can be used as
an interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally. Set the parking brake.
Shift the shift lever to P.
Set the “ENGINE START STOP” switch to the ACC mode.
Push and hold the “ENGINE START STOP” switch about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be start ed using the above steps, the system
may be malfunctioning. Have the vehicle checked by your Toyota
dealer.
■ The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 516)
● There may be a malfunction in the steering lock system (vehi-
cles with smart key system).
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4

573
What to do if...
What to do if...
A tire puncturesP. 499If you have a flat tire
The engine does not start
P. 510If the engine will not start
P. 1 1 0Engine immobilizer system
P. 516If the battery is discharged
The shift lever cannot be
moved outP. 512If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 520If your vehicle overheats
The key is lostP. 513If you lose your keys/ wireless
remote control transmitter
The battery runs outP. 516If the battery is discharged
The doors cannot be lockedP. 6 4Doors
The horn begins to soundP. 1 1 6Alarm
The vehicle is stuck in
mud or sandP. 523If the vehicle becomes stuck