horn TOYOTA HIGHLANDER 2001 Service Repair Manual

'05 HIGHLANDER_U (L/O 0409)
411
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Instrument panel
Fuses (type A)
1. A/F 25 A: Air fuel ratio sensor
2. CRT 7.5 A: Rear seat entertainment
system, navigation system
3. STARTER 7.5 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system
4. EFI NO.2 10 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system
5. ETCS 10 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system
Engine compartment
(with daytime running light system)
6. RR HTR 15 A: Rear air conditioning
system
7. H- LP RH LWR 15 A: Right- hand head-
light (low beam)
8. H- LP LH LWR 15 A: Left- hand head-
light (low beam)
9. ALT- S 7.5 A: Charging system
10. POWER OUTLET2 20 A: Power outlets
11. TOWING 20 A: Trailer lights
12. HORN 10 A: Horns
13. SECURITY 15 A: Theft deterrent sys-
tem14. H- LP RH UPR 10 A: Right- hand head-
light (high beam)
15. ECU´B 7.5 A: Theft deterrent system,
air conditioning system, gauges and
meters, multiplex communication sys-
tem, electronic moon roof, front pas-
senger occupant classification system
16. EFI NO.1 20 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system, fuel pump
17. DOOR LOCK 25 A: Power door lock
system, theft deterrent system
18. H- LP LH UPR 10 A: Left- hand head-
light (high beam)
19. RAD NO.1 25 A: Audio system
20. DOME 10 A: Personal lights, interior
lights, vanity lights, ignition switch light,
wireless remote control system, gauges
and meters, navigation system
21. HAZARD 15 A: Emergency flashers,
instrument panel light, trailer lights
22. SPARE 7.5 A: Spare fuse
23. SPARE 15 A: Spare fuse
24. SPARE 25 A: Spare fuse

2005 HIGHLANDER (EWD592U)
63
1
2I
3 2
4 1
2G133 I15
B
HEAD LAMP Relay
20A EFI NO. 110A HORN10A H- LP LH UPR 10A H- LP RH UPR
40A MAIN D. C. C
7. 5A ALT- S
2 125A DOOR LOCK
15A HAZARD7. 5A ECU- B
15A SECURITY25A RAD NO. 1
10A DOME 2
73
4
6 AM2 AM1ACC
IG1
IG2
ST21C2
10A IGN
15A IG215A RR WIP25A WIPER 10A ECU- IG 20A WASHER7. 5A IG1
1C715A CIG
7. 5A RAD NO. 2 L
L
G
GR
1C1
1C4
R- B
W W
2 1
7. 5A DRL
2 2 1
15A H- LP LH LWR 222 1
15A H- LP RH LWR1
32
53
3 3
DRL NO. 2 Relay 3 2G4
E10R- B
R- B R- B
BL- R
20A TOWING Y
1G1
212
2L
E10B
B
(
*2)(
*1)
(
*1)(
*1) * 1 : w/ Daytime Running Light
* 2 : w/o Daytime Running Light
7. 5A STARTER10A HEATER
(
*1)(
*1) (
*1)(
*1)
2 3
1 5
2D3
EFI RelayY
222 1
10A EFI NO. 2L- W
B- W R- WR- Y 1 ST1
IC1 3 B
B- Y
20A POWER OUTLET28
B- W
STARTER RelayIgnition SW

'05 HIGHLANDER_U (L/O 0409)
22
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Pushing the PANICº switch blows the
horn intermittently and flashes the
headlights and tail lights.
The PANICº switch is used to deter ve-
hicle theft when you witness anyone at-
tempting to break into or damage your
vehicle.
The alarm will last for one minute. To stop
alarm midway, do the following:

Push the PANICº switch once again.

Unlock any of side door or back door
with the key or wireless remote control
transmitter.

Turn the ignition key from the LOCKº
to ONº position.The PANICº mode does not work when
the ignition key is in the ONº position.
The alarm function can be disabled. For
details, contact your Toyota dealer.For replacement, use a CR2016 lithium
battery or equivalent.
CAUTION
Special care should be taken to pre-
vent small children from swallowing
the removed transmitter battery or
components.
NOTICE

When replacing the transmitter bat-
tery, be careful not to lose the com-
ponents.

Replace only with the same or
equivalent type recommended by a
Toyota dealer.

Dispose of used batteries according
to the local laws.
Replace the transmitter battery by follow-
ing these procedures:
ÐActivating panic modeÐReplacing transmitter
battery

'05 HIGHLANDER_U (L/O 0409)
32
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
3. Hold the hood open by inserting the
support rod into the slot.
Before closing the hood, check to see that
you have not forgotten any tools, rags,
etc. and return the support rod to its
clipÐthis prevents rattles. Then lower the
hood and make sure it locks into place.
If necessary, press down gently on the
front edge to lock it.
CAUTION
After inserting the support rod into
the slot, make sure the rod supports
the hood securely from falling down
on to your head or body.
To deter vehicle theft, the system is
designed to sound an alarm if any of
the side doors, back door or hood is
forcibly unlocked or the battery termi-
nal is disconnected and then recon-
nected when the system is set.
The alarm blows the horn intermittently
and flashes the headlights, tail lights and
turn signal lights, and turns on the interior
light.SETTING THE SYSTEM
1. Turn the ignition key to the LOCKº
position and remove it.
The indicator light will start flashing when
the key is removed from the ignition
switch. (See Engine immobilizer systemº
on page 17 in this Section for details.)
2. Have all passengers get out of the
vehicle.
3. Close and lock all the side doors, back
door and hood.
The indicator light will remain on when all
the side doors, back door and hood are
closed and locked.
Theft deterrent system

2005 HIGHLANDER (EWD592U)
208
Theft Deterrent System
IF1 2IC3 4
WL
15A
SECURITY
2A 5
L
3
+B2IL2 18
P
12
KSW D D
GG
2 1
1 2
IL2 6IK3 15
G W
34
DSWH
G- B
10A
ECU- IG
1K 9
3A 1
3E 5
R G
10
IG IL2 17
Y SB
15
L BG3 9
V
IA2 14
BR
IL2 8
LG BR
33
UL BG2 4
B
IA2 4
Y
BE A
W- B
EG A
W- B
4G 9
4N 1
W- B W- B
4L 7
IC
W- B
3J 11
W- B
2 3
Y
11
O
IOUT
IF3 17
IC3 2
V LG B B- O
13C 8
3B 2
R B
31MPX1
1SH-
25IND
1 2
3F 11
W- B
3D 5
3F 13
W- B W- B
29E
W- B
IB J1 4
T 5 T 1
E 3
K 4 J 6
W- B W- B
2+B1
I11
1
O
IL1 11
PV
P T 4 1 23
BR
Y
B14 W- B
IOUT S+B
GND
O 4O
J 1Battery
B
B 140A ALT
2
1
F 7
W
FL MAI N
3. 0WFrom Power Source System (
See Page 62)
Back Door Key Lock and
Unlock SW
Engine Hood
Courtesy SW Fusible Link Block
Junction
ConnectorJunction
Connector
Ju nctio n
Connector
Unlock Warning SW
Option Connector 2
Theft Deterrent Horn
Theft Deterr ent ECU
Theft Deter rent
Indicator Light

2005 HIGHLANDER (EWD592U)
211
E D 11
ILE
BR
B
G
G
V
VD 17LSWA
A A
BH1 17
BC1 11 BH1 8
BC1 6 BH1 15
BC1 7
B
G BR
SB
V GR
B- W
L- B
412 AA
V
BB BC1 133
W- B W- B
BG3 8BG21BG23
BE A 412
V
G
RGB
V W- B
3B15 J12
B
IC 4L 74H 11 4G 9D 7GND1
D DB 2KSW
1 2
G G W- B
W- B W- BJ 6 K 4
MM
D1510A
HORN
32 51
D 10IC2 42B 6
HORN
W- R P
HORN
Relay40A
MAIN
2G 4
C 3
R
5 R- B
HRLY 2
EACT- ACT+ LSSR SLUL
L- R
3 3
1 3
2
3
IK3 4DRL NO. 2
Relay E10
4J 5
4F 26 2
4H 6
4D 1210A
DOME
2A 3
12 IK3
G
Y
C 6BCTY
G
IA1 4
BG3 4
GR R
1 2
W- B
R12R
IA13
BB
4N 1
W- B
J14
A 23 14
2B 1HEAD
LAMP
Relay
R- B
(
*3)
R- B
(
*3) L- R
(
*4)
L- R
(
*4)(
*3)
(
*3)
* 3 : w/ Daytime Runni ng Light
* 4 : w/o Daytime Running LightFr om Power Source System (
See Page 62)
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)
Igniti on Key
Cylinder
Illumination
Y
V
Body ECU
Back Door Lock Motor
Back Door Unlock
Detection SW Door Lock Motor Rear RH
Door Unlock Detection SW
Rear RH
Junction
Connector
Junction
Connector
Junction
Connector
Unlock Warning SW Rear Interior
Light SWTr ansponder Key
Amplifier T 7

2005 HIGHLANDER (EWD592U)
242
Horn
10A
HORN
62B 12E
6 11
H 8 H 7HORN
Relay
G- W
W- R P
G- W
IC2 4 51
32
I 1
P
10
HORN
B12 P
P P G- W G- W
From Power Source System (
See Page 62)
HornBody ECU Hor n LH Horn RH
Combination SW C16

2005 HIGHLANDER (EWD592U)
243
HORN Relay
5-3 : Closed with the horn SW on
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B1242H738 (3MZ-FE)H838 (3MZ-FE)
C1642H740 (2AZ-FE)H840 (2AZ-FE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)2E27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC252Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
I154Cowl Wire
Service Hints

H43063
Airbag Sensor Assy Center
D Squib
A20
Spiral Cable
Sub-assyY Y-B
D+
D- 1
A17
2
A1713 14
D2+
D2- A17
A1717 16 2
1
4
3 1
2Y-R
Y-G
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1233
1423 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B0100/13 SHORT IN D SQUIB CIRCUIT
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assy center, the spiral cable sub-assy and the horn button
assy.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0100/13 is recorded when a short circuit is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0100/13

Short circuit between D+ wire harness and D- wire har-
ness of D squib

D squib malfunction

Spiral cable sub-assy malfunction

Airbag sensor assy center malfunction
Horn button assy (D squib)

Spiral cable sub-assy

Airbag sensor assy center

Cowl wire
WIRING DIAGRAM
0525D-05

H01001
C89244H41475
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
D+
D-
Color: Black
A
B
C D
E F
05-1234
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1424 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK CONNECTOR
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the horn button assy.
(d) Check that the spiral cable sub-assy connectors (on the horn button assy side) are not damaged.
OK:
The lock button is not disengaged, or the claw of the lock is not deformed or damaged.
NG REPLACE SPIRAL CABLE SUB-ASSY
(SEE PAGE 60-26)
OK
2 CHECK D SQUIB CIRCUIT(AIRBAG SENSOR ASSY CENTER - HORN BUTTON
ASSY)
(a) Disconnect the connector from the airbag sensor assy
center.
(b) Release the activation prevention mechanism built into
connector ºBº (see page 05-1207).
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
D+ - D-Always1 MW or Higher
NG Go to step 5
OK