1998 TOYOTA LAND CRUISER horn

L
CodePart Name Part NumberCodePart Name Part Number
2004 LAND CRUISER (EWD548U)
409
R31Rear Wiper Relay90980-10797
R32Remote Control Mirror LH90980-1 1573R33Remote Control Mirror RH90980-11573
R34Room Temp. Sensor (Rear)90980-1 1918
R36Radio and Player90980-12038
R37Radio and Player90980-12183
R38Radio and Player90980-12259
R39Rear Seat Audio Controller90980-12200
R40Roll Sensing of Curtain Shield Airbags
Cutoff SW90980-10957
S 1Starter90980-1 1400
S 2Starter90980-09585
S 3Seat Heater SW (Driver's Seat)90980-10797
S 4Seat Heater SW (Front Passenger's Seat)90980-10996
S 5Stop Light SW90980-1 1118
S 6Stereo Component Amplifier90980-10848
S 7Stereo Component Amplifier90980-10807
S 8Seat Belt Warning Occupant Detection
Sensor90980-10860
S 9Seat Heater (Driver's Seat)90980-10907S10Seat Heater (Front Passenger's Seat)90980-10907
S11Side Airbag Sensor Front LH
S12Side Airbag Sensor Front RH90980-12225S13Side Airbag Sensor Rear LH90980-12225
S14Side Airbag Sensor Rear RH
S15Seat Heater (Driver's Seat Cushion)
S16Seat Heater (Front Passenger's Seat
Cushion)90980-10794
S17Seat Position Sensor90980-12195
S18Side Airbag Squib LH90980-1 1864S19Side Airbag Squib RH90980-1 1864
T 1Theft Deterrent Horn90980-10619
T 4Telescopic Motor90980-10799
T 5Theft Deterrent ECU90980-12169
T 7Tilt and Telescopic ECU90980-10799
T 8Tilt and Telescopic ECU90980-10848
T 9Tilt Motor90980-10799
T10Ignition Key Cylinder Light90980-12092T10Transponder Key Amplifier90980-12092
T11Turn Signal Flasher90980-10799
T12Trailer Socket82824-34030
T13Tweeter LH90980-1 1300T14Tweeter RH90980-1 1300
T15Towing Converter Relay90980-1 1535
T16Throttle Control Motor and Sensor90980-1 1858
T17Turbine Speed Sensor90980-1 1156
T18Towing Brake Controller90980-1 1603
T19Transponder Key Computer90980-1 1911
T20Television Camera90980-12381
T21Television Camera ECU90980-12169
T22Television Camera ECU90980-10997
T23Towing Hitch Relay82660-20340
U 1Unlock Warning SW90980-10860
V 1Vapor Pressure Sensor90980-1 1143V 2Vehicle Speed Sensor (Combination Meter)90980-1 1143
V 3Vehicle Speed Sensor (Electronically
Controlled Transmission)
90980-1 1156
V 4VSV (EVAP)
90980 1 1156
V 6Vanity Light LH90980-1 1918V 7Vanity Light RH90980-1 1918
V 8VSC Warning Buzzer90980-10906
V 9VSV (Canister Closed Valve)90980-1 1162
V10VSV (Pressure Switching Valve)90980-1 1859
W 1Washer Motor90980-1 1294
W 4Woofer (Speaker)90980-10795
Y 1Yaw Rate Sensor90980-12080
Z 1Option Connector (Glass Breakage Sensor)90980-10825

2004 LAND CRUISER (EWD548U)
386J POWER SOURCE (Current Flow Chart)
Engine Room R/B (See Page 22)
FuseSystemPage
40AABS NO.2VSC228
50AABS NO.1VSC228
Engine Room J/B (See Page 22)
FuseSystemPage
7.5AALT-SCharging104
7.5APANEL
Combination Meter
Illumination
Multiplex Communication System350
142
172
10AETCS
Cruise Control
Electronically Controlled Transmission and A/T Indicator
Engine Control222
212
108
10AFR-IGCharging104
10AHEAD LH-LWR
Front Fog Light
Headlight
Multiplex Communication System132
128
172
10AHEAD RH-LWRHeadlight
Multiplex Communication System128
172
10AHORN
Horn
Multiplex Communication System
Theft Deterrent208
172
282
10ARR HTRAir Conditioning (Rear)366
15AAM2
Automatic Light Control
Engine Control
Headlight
Ignition
Light Auto Turn Off
Starting
Theft Deterrent164
108
128
100
166
98
282
15AFR FOGFront Fog Light
Multiplex Communication System132
172
15AHAZ-TRNTurn Signal and Hazard Warning Light134
15AMIR HTRMirror Heater314
15ATAIL
Automatic Light Control
Light Auto Turn Off
Multiplex Communication System
Taillight
Theft Deterrent
Trailer Towing164
166
172
138
282
158
20AHEAD LH-UPRHeadlight
Multiplex Communication System128
172
*These are the page numbers of the first page on which the related system is shown.

2004 LAND CRUISER (EWD548U)
94Power Source
Battery1C2
10A RR HTR 15A MIR HTR 1C1
10A HORN 30A STARTER
20A HEAD LH- UPR
20A HEAD RH- UPR
10A HEAD LH- LWR
10A HEAD RH- LWR
TAIL Relay15A TAIL
IG1 NO. 1 Relay7. 5A PANEL
10A FR- IG 12
HEAD HI Relay
HEAD Relay 10A ETCS
D 1B1A1C1 A 22 2
1 1
40A ABS NO. 2 50A ABS NO. 1
30A TOWING BRK
30A TOWING
15A FR FOG 15A HAZ- TRN
7. 5A ALT- S
30A BAT
30A AMP Short Pin (
B)
Short Pin (
A)1B24
15A AM2
1B9
1B50 25A EFI OR ECD NO. 1
1B11EFI OR ECD Relay
2 1
4 3
1 1
F15(
A)
, F16(
B)
, F17(
C)
, F18(
D)
, F19(
E)
B- G B- G B- GL- BB- G
50A HTR
120A J/B NO. 1 120A J/B NO. 2
120A J/B NO. 3 140A ALT 120A MAIN
L- B
B- G B- Y B- YW- RL- O
B- G
E 1
B
1B39
EE
W- B
1
12
2
Fusible Link Block30A TOWING TAI L

2004 LAND CRUISER (EWD548U)
178Multiplex Communication System
B 7(
A)
, B 8(
B)
, B 9(
C)
W- B
SB
R- Y
SB
L- Y10A
HORN
1B 21
2B 9
2Q 24C CT 5
2Q 26
2Q 22 2I2 IL3 12 IL322 IL36 10A
ECU- B2 From Power Source System
(
See Page 94)
3Q 44 3Q71
IF 2Q 20
2E18LP(
*1) B 14(
*2) A 21(
*1)
A 3(
*1)
B 8(
*2) 3Q 76
3D 12IL3 5IL320
3Q 73
3E 13
4D 14
4D 5
J14
M 5(
A)
, M 9(
B)
3E 20
3E 12
7B 7
7B 8
9
7
HORN Relay
C 17
D 7
OBD2
+B2 E HORN IND REV
329525 23
SB G- O SB
SB
B
W- B
G- O
G- R
B SBV- W V- W V- W
SB
L- W
SB
SB
SB B G- RSB
W- B
B
V- WL- W
SB
TAC
SIL
L- YSB R- YSB
W- B W- B
SB SB
11BECU
SECURITY(
*2)
GND(
*2) GN D1(
*1)
GN D1(
*1)
Data Link
Connector 3Multi- Display
Theft Deterrent ECU Body ECU
Junction
Connector

2004 LAND CRUISER (EWD548U)
179
B 7(
A)
, B 8(
B)
, B 9(
C)
IL3 8
3Q 82
3B 4
EA2 6
2 1
EAIL3 7
63B 84 3Q
1
E 3
T 1
IL3 3
IU3 147. 5A
SECURITY From Power Source System
(
See Page 94)
3E 16 3Q 72 IL3 14
Z 1
SB
L- YSB
R- Y
SB
L- YSB
R- Y
W- BSB L- W34 1 11 2DSWH SH- GBS +B1
L- B
W
Y- G
LG SB
SB
SB
SB
LG
SB L- B
W
Y- G L- B W- B
T 5
LG
2 1
SB L- WSB
W- B * 1 : w/ Navigation System
* 2 : w/o Navigation System
Engine Hood
Courtesy SW
Theft Deterrent Horn
Theft Deterrent ECU Body ECU
10IG
IL3 15
B
12 31
R- B
MPX1
SB
KSW
IL3 9IL31
E EIU3 15C 26
SB
SB B
MPX3
J14
Junction
ConnectorB- W
SB
Option Connector
(
Glass Breakage Sensor)

2004 LAND CRUISER (EWD548U)
208Horn
10A
HORN From Power Source System (
See Page 94)
1B 21 1A41A15
2Q 242B 9
C C
IH2 8
611
G- O SB SB G- O
G- W
G- R
C
C18H10 H 9
Horn
Theft Deterrent ECU
HORN
Relay
J14
SB
Combination SWHorn LH Horn RH
Juncti on Connector

2004 LAND CRUISER (EWD548U)
209
C18 Combination SW
6-Ground :Continuity with horn SW on
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
C1870H1069
H969J1471
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A24Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1B24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2B28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IH280Instrument Panel Integration Wire and Column Wire (Near the Ignition SW)
Service Hints

2004 LAND CRUISER (EWD548U)
278Wireless Door Lock Control
In this system, the door control receiver receivers weak radio wave transmitted from the transmitter built-into the ignition key,
and outputs a signal to the body ECU. Accordingly, all the doors are can be locked and unlocked by remote control.
1. Normal Operation
*Lock operation
When the lock SW on the transmitter is pressed, all the doors are locked.
*Unlock operation
When the unlock SW on the transmitter is pressed once, only the driver door is unlocked. When the unlock SW is pressed
again within 3 seconds, all the doors are unlocked.
2. Auto Lock Function
When the door is not actually opened within 30 seconds after the door has been unlocked by the unlock SW on the
transmitter, all the doors are automatically locked. If any of the following conditions are detected, the wireless door lock does
not function.
*Any door is opened.
*The ignition key is inserted into the ignition SW.
*When the unlock detection SW of all the doors are locked.
3. Wireless Door Lock Stop Function
If any of the following conditions are detected, the wireless door lock does not function.
Lock operation
*When any door is open (Door courtesy SW on)
*The ignition key is inserted into the ignition SW (Unlock warning SW on)
*Ignition SW is on
Unlock operation
*Ignition SW is on
4. Visual Confirmation of Lock or Unlock
During lock operation, when the door control receiver receives a lock signal from the door unlock detection SW, the turn
signal light is flashed once. During unlock operation, when the door control receiver receives an unlock signal from the door
unlock detection SW, the turn signal light is flashed twice.
5. Panic Mode Function
When the panic SW on the transmitter is pressed, the door control receiver receives a signal and enters the panic mode.
The signal input into the theft deterrent ECU from the body ECU turns on the theft deterrent horn, and flashes the taillight
and headlight. When the panic SW or the unlock SW of the transmitter is pressed during the panic mode, the panic mode is
canceled, and the theft deterrent horn stops, and the taillight and headlight are turned off.
6. Repeat Function
If the lock detection signal in response to the output signal is not received after the door control receiver has output the lock
signal, the lock signal is output again.
D27 Door Control Receiver
5-Ground : Always approx. 12 volts
1-Ground : Always continuity
D21, D22, D23, D24 Door Unlock Detection SW Front LH, RH, Rear LH, RH
1-Ground : Always continuity
B4 Back Door Unlock Detection SW
1-Ground : Always continuity
System Outline
Service Hints