1986 TOYOTA LAND CRUISER radio antenna

26 Noise NOISE OCCURS
No
Ye s Does the noise occur only in the radio?
Does the noise occur in a particular place?
Is there any additional installation part
around the glass imprinted antenna?
(Sun shade film, telephone antenna etc.)
Does the noise occur even pulling out the
antenna cord from the radio?
Does the noise occur even after pulling out the
antenna terminal on the glass surface?
Isn't there any adhesive (Butyl rubber)
stuck on the bases of the antenna
terminal, defogger terminal and bus bar?
Does the condition get better by replacing
the antenna cord.
Noise rediates directly to the antenna from the
generation source.Replace the antenna cord. Failure of glass installation.
Must plane the butyl rubber. Noise mixing into the antenna cable. Check the radio. Influence of the film or the noise radiation
of the additional installation part. Does the noise stop by removing it? An electric environment.Refer to No.27. (It occurs in the cassette and CD.)
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s No
No
No
No
No
No
- BODY ELECTRICALAUDIO SYSTEM
BE-167
2540 Author
: Date
:
2004 LAND CRUISER (RM1071U)

2004 LAND CRUISER (EWD548U)
8B HOW TO USE THIS MANUAL
The ground points circuit diagram shows the connections from all major parts to the respective ground points. When
troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify
the problem ground quickly. The relationship between ground points (
EA, IB and IC shown below) can also be
checked this way.
5
5
5
5
4
44
4
4 BA15IB18EA2
ID115
IC33 IA12 E 3
W-BW-B W-B W-B W-B
W-B
W-B
W-B
W-B W-B
W-B
W-B W-B
W-B
W-B W-B W-BW-B W-B W-B W-B
W-B
W-B
W-B
W-B W-B W-B
W-B
BR
W-B
BR BRW-BW-B W-B
W-B
W-B
W-B
W-B W-B W-B
W-B
W-B W-B
W-B
W-B
BR W-B
BR BR
BR W-B (4A-GZE)
W-B W-BI 2
I 2
B 5 I 5 I 5 I 5
B 5
B 5
B 5
I 5
I 5
I 3 I 3 E 3
E 3
E 3
E 2
E 4
E 5
E 4
E 5
E 6 E 4 E 4
B 4
EA I 4
B 4
B 4
I 4 I 8
IB IC 443E5
3E6 3G13 3F3 3D1 3B7W-B
W-B
W-B W-B W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B
W-B W-BI 6
I 6
I 2 3C7
10A A A A
A
A
Junction
Connector J 1
W-B
W-B
W-B W-B
BR W-B W-B
W-B
W-B W-B
W-B
I GROUND POINT
FAN MAIN Relay
FAN MAIN Relay
A/C Relay No.2
A/C Relay No.3
Radiator Fan Motor
Headlight Cleaner Relay
Headlight LH
Headlight RH
Front Fog Light LH
Brake Fluid Level SW Front Fog Light RH Front Turn Signal Light RH
Front Clearance Light RH
Front Turn Signal Light LH
Front Clearance Light LH
Door Lock Control SW
Door Courtesy SW RH
Door Lock Motor RH
Door Lock Control Relay
Blower Resistor
Idle-Up SW
A/C Amplifier
Radio and Player
HEATER Relay
Auto Antenna MotorA/C Control Assembly
Blower Motor
Blower SW
Parking Brake SW
Combination Meter
Combination SW
Cruise Control ECU
Remote Control Mirror SW
Turn Signal Flasher
Defogger SW
Unlock Warning SW
Power Window Master SW
Power Window Control
Relay
Door Courtesy SW LH
Door Lock Control SW
Door Lock Motor LH
Fuel Control SW
Woofer Speaker Amplifier
Combination Meter
Combination Meter
Fuel Sender Cigarette Lighter
O/D Main SW
Clock
Combination SW
*The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.

2004 LAND CRUISER (EWD548U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
28 LAND CRUISER
2ACC
IG1
ST 1 AM13
B- R
1 2
5 37. 5A
ACC 2D 17 2E 39
7. 5A AM1
2C 1
IF Se t Bol t o f
Co wl S i de J/ B L H 1B6B 4
6D 3
3Q 50
3 4
1 2
2E 40
6B 5
6D 2
3IX13Q 52
IISet Bolt of
Cowl Side J/ B RHB- GB- RSB
B- RGRB
B- R I18
F15(
A)
, F16(
B)
, F17(
C) 120A
J/B NO. 2
140A
ALT
Bat tery4IX1
SB
ACC RelayEngine Control
System< 4- 2> ACC CUT
Re la y
4
L- BB
Power SourceAuto Antenna
1C1 2
3 5 2E 37
2Q 77
3Q 39 3C1
10A ECU- IG2
3D 24
120A
J/ B NO. 3
SB B- G B- W
B- G
10A
RA DI O
29 3D
4Ib1
IW3 46 DOWN
GNDANTD ANTU
L- W
UP
L- Y
W- B
53
9IW3 19 ESUP
IW3 1012VCC
IW3 1210SIG
IW3 1111SGND
IW3 13
A A
5 4 1263A
IISe t Bol t of
Co wl S i de J / B RH 3B 2 1614 4 717
SDWN
W- B W- B B WR (
Shielded) L- WL- Y
B WR (
Shielded) L- WL- Y
B- R
L- Y
B- WGR L- Y B
ACC IG B ANT
Radio and Player
<26- 8><27- 4>
W- B
3B 25
28 A 29 A
12 C
IG1 NO. 3
Re la y
2A
120A
MAIN
30A BAT
1C 11B 24
Sh or t Pi n
(
A)
B- G L- O
5Ib14D 15
4B 10
GRJ16
A45(
A)
, A47(
C) 9Ib1 10Ib1L- Y L- W2D 2 2D 22
IFSe t Bol t o f
Co wl S i de J/ B L H 4B 8
4D 8
W- B W- B
A30
A A
J11
W- B
A1 7
2E 183N 7
3P 1
W- B15 14W- BC2 8L- Y L- W
(
*2) (
*2) (
*1) (
*1)
(
*1)
(
*2)(
*1)
(
*2)
51 3Q 2
1* 1 : w/ Navigation System
* 2 : w/o Nav igat ion Sy stem
S- ANTU S- ANT D
GN D
M
B- R4E 11
4B 9
Auto Antenna Motor Aut o Antenna Cont rol Relay I gnit ion SW
Junction
Connector
A/C Control
Assembly
J unc tion
Connec torCenter Cluster
Integration
Panel
Fus ible Link BlockA
B
57A 67A

SYSTEM INDEX
M OVERALL ELECTRICAL WIRING DIAGRAM
2004 LAND CRUISER (EWD548U)
412
SYSTEMS LOCATION SYSTEMS LOCATION
Air Conditioning (Front) 31-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning (Rear) 31-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto Antenna 28-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Glare-Resistant EC Mirror with Compass 15-3. . . . . . . . . . .
Back-Up Light 10-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Differential Lock 14-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter 21-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter 30-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronically Controlled Transmission and A/T Indicator 5-6. . . . . . . . . .
Engine Control 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Immobiliser System 4-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Wiper and Washer 18-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Garage Door Opener 15-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 18-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirror Heater 11-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Moon Roof 17-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi-Display (w/o Navigation System) 29-3. . . . . . . . . . . . . . . . . . . . . . .
Multiplex Communication System 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
* Automatic Light Control
* Door Lock Control
* Front Fog Light
* Headlight
* Interior Light
* Key Reminder* Light Auto Turn Off
* Power Window
* Theft Deterrent
* Wireless Door Lock Control
Navigation System 26-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Outlet 20-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Rear Quarter Window 11-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Seat 22-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source 1~31-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Tilt and Power Telescopic 23-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio and Player (w/ Navigation System) 26-5. . . . . . . . . . . . . . . . . . . . .
Radio and Player (w/o Navigation System) 27-3. . . . . . . . . . . . . . . . . . . .
Rear Window Defogger 11-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wiper and Washer 19-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 16-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Belt Warning 25-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Heater 21-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lock 24-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS 13-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Light 10-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOYOTA Parking Assist (Rear View Monitor) 26-12. . . . . . . . . . . . . . . . .
Trailer Towing 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Light 6-2. . . . . . . . . . . . . . . . . . . . . . . . . .
VSC 12-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2004 LAND CRUISER (EWD548U)
387J
FuseSystemPage
20AHEAD RH-UPRHeadlight
Multiplex Communication System128
172
25AEFI OR ECD NO.1
Cruise Control
Electronically Controlled Transmission and A/T Indicator
Engine Control222
212
108
30AAMPRadio and Player (w/ Navigation System)
Radio and Player (w/o Navigation System)324
330
30ASTARTEREngine Control
Starting108
98
30ATOWINGTrailer Towing158
30ATOWING BRKTrailer Towing158
30ATOWING TAILTrailer Towing158
Cowl Side J/B LH (See Page 28)
FuseSystemPage
7.5AACC
Auto Antenna
Automatic Light Control
Combination Meter
Door Lock Control
Engine Control
Headlight
Interior Light
Key Reminder
Light Auto Turn Off
Multi-Display (w/o Navigation System)
Multiplex Communication System
Navigation System and TOYOTA Parking Assist
(Rear View Monitor)
Power Window
Radio and Player (w/ Navigation System)
Radio and Player (w/o Navigation System)
Remote Control Mirror
Theft Deterrent
Wireless Door Lock Control322
164
350
260
108
128
148
316
166
348
172
336
250
324
330
302
282
270
7.5AAM1
Air Conditioning (Rear)
Engine Control
Mirror Heater
Rear Window Defogger
Shift Lock366
108
314
312
244
7.5AIDLE UPMultiplex Communication System
Rear Window Defogger172
312
7.5AOBD-2Engine Control108
*These are the page numbers of the first page on which the related system is shown.

2004 LAND CRUISER (EWD548U)
391J
FuseSystemPage
10ARADIO
Auto Antenna
Navigation System and TOYOTA Parking Assist
(Rear View Monitor)
Radio and Player (w/ Navigation System)
Radio and Player (w/o Navigation System)322
336
324
330
15ASEAT HTRSeat Heater308
15AWASHERFront Wiper and Washer
Rear Wiper and Washer196
200
20ADIFFCenter Differential Lock246
20AP/W (FL)
Door Lock Control
Interior Light
Multiplex Communication System
Power Window
Theft Deterrent
Wireless Door Lock Control260
148
172
250
282
270
20AP/W (FR)Multiplex Communication System
Power Window172
250
20AP/W (RL)Multiplex Communication System
Power Window172
250
20AP/W (RR)Multiplex Communication System
Power Window172
250
20ATIL & TELPower Tilt and Power Telescopic298
25AWIPERFront Wiper and Washer196
30ARH SEATPower Seat294
30ARR A/CAir Conditioning (Rear)366
Fusible Link Block (F15, F16, F17, F18, F19 on See Page 68)
FuseSystemPage
50AHTRAir Conditioning (Front)356
120AJ/B NO.1
Automatic Light Control
Illumination
Light Auto Turn Off
Multiplex Communication System
Taillight
Theft Deterrent164
142
166
172
138
282
120AJ/B NO.2
Air Conditioning (Rear)
Engine Control
Mirror Heater
Rear Window Defogger
Shift Lock366
108
314
312
244
120AJ/B NO.3Engine Control108
120AMAIN
Ignition
Multiplex Communication System
Starting100
172
98
*These are the page numbers of the first page on which the related system is shown.

2004 LAND CRUISER (EWD548U)
322Auto Antenna
M3 6 2 1 5 4IW3 9 IW3 4 IW3 10 IW3 12 IW3 11 IW3 133 6 12 10 11
W- B
A
W- B
A A
II 3B 2 A 28 A29
C 12
16 15 14 Ib1 9Ib110
IF 2D 22 2D22E183N 7
3P 1 A A
4B 8
4D 8J16
A 19 5
L- Y
L- W W- B
W- BW- B W- B
W- B
W- B
W- B
B
W
R
L- W
L- YB
W
R
L- W
L- Y L- Y
L- W
L- Y
L- W(
*2)
(
*2)
(
*1)
(
*1)
A45(
A)
, A47(
C)
C28
J11
A17 10A
ECU- IG2
3D 247. 5A
ACC From Power Source System (
See Page 94)
2D 1710A
RADIO
3D 29
717 4Ib1 5Ib1 4 4D 15
4B 10
B- W B- W
GR GR
L- Y L- Y
144E 11
4B 9
B- R B- R
R36
IG ACC B ANTANT
A30
ESUPSDWNSGND SIG VCC DOWN UP
(
*2)
(
*1) (
*2)
(
*1)
GND GND ANTU ANTD S- ANTU S- ANTD
(
Shielded)
(
Shielded)
* 2 : w/o Navigation System * 1 : w/ Navigation System
Auto Antenna Motor Auto Antenna Control Relay
A/C Control
AssemblyCenter Cluster
Integration PanelJunction
Connector
Junction
ConnectorRadio and Player
13

2004 LAND CRUISER (EWD548U)
326Radio and Player (w/ Navigation System)
20
J 9(
A)
, J10(
B)
W- B
B HBH A F
W- B
II 3D 83D10
W- B
GR
D26
A 12E
B 9
BL
W- B
W- B
A 13GND 2
A 1
LG
IV3 1
LG
IY2 2
21
B 8
LG
LG L
12B 8A 8
L
IV3 2
L
IY2 1
L
L T1 4
LGFR- FR+ RL+ RL-
2 BA3 3 BA3
R19
Y B
Y
ID4
Y
32 IV4
Y
11 A
2 1
B
37 ID4
B
31 IV4
B
4A
38
F 9 A 20GND
B23
BRBR
42 Ig1 Ig122 Ig121A 16SGND
B
Ig1 16A 7MUTE
O
Ig1 15A 17BEEP
11
G
Ig1 19A 19RL
SGND
W
Ig1 20A 18RR
BB
R
Ig1 17A 9FL
GND 10
P
Ig1 18A 8FR
Y
Ig1 37A 3AMP+
B- R (
Shielded) (
Shielded)
A 13ANT
4E 11
4B 9
A30 14
B- R B- R
BR
ANT
12
MUTEB4
BEEPB13
R. LB14
R. RB5
F. LB6
F. RB1
AMPB2
ACCB R36(
A)
, R37(
B)
, R38(
C)
S 6(
A)
, S 7(
B)
B
O
G
W
R
P
Y
GRB- R
GND
BR BR
BR
BR BR
Auto Antenna
Control Relay
DVD Automatic Changer
Fr ont Door Speaker RH Rear Door Speaker LHStereo Component Ampli fier
Tweeter RH Junction
ConnectorRadio and Player