Page 1905 of 3115
A03111
Adjusting Shim Selection Chart (Intake)
Shim No. Installed shim thickness
mm (in.)
mm (in.) Measured clearance
Thickness
New shim thicknessShim No. Thickness Shim No. Thickness
mm (in.)
Intake valve clearance (Cold):
0.15 - 0.25 mm (0.006 - 0.010 in.)EXAMPLE:
The 2.300 mm (0.0906 in.) shim is installed,
and the measured clearance is 0.440 mm
(0.0173 in.). Replace the 2.300 mm (0.0906
in.) shim with a No. 54 shim.
- ENGINE MECHANICALVALVE CLEARANCE
EM-7
1580 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 1906 of 3115
A03112
Adjusting Shim Selection Chart (Exhaust)
Installed shim thickness
mm (in.)
mm (in.) Measured clearance
Shim No. Thickness
New shim thicknessShim No. Thickness Shim No. Thickness
mm (in.)
Exhaust valve clearance (Cold):
0.25 - 0.35 mm (0.010 - 0.014 in.)EXAMPLE:
The 2.300 mm (0.0906 in.) shim is installed,
and the measured clearance is 0.440 mm
(0.0173 in.). Replace the 2.300 mm (0.0906
in.) shim with a No. 44 shim.
EM-8
- ENGINE MECHANICALVALVE CLEARANCE
1581 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 1907 of 3115
NOTICE
When handling supplemental restraint system components (removal,
installation or inspection, etc.), always follow the direction given in the repair
manuals listed above to prevent accidents and supplemental restraint
system malfunction.
FOREWORD
This wiring diagram manual has been prepared to provide
information on the electrical system of the 2004 LAND
CRUISER.
Applicable models: UZJ100 Series
For service specifications and repair procedures of the above
models other than those listed in this manual, refer to the
following manuals;
Manual Name
Pub. No.
2004 LAND CRUISER Repair Manual
Volume 1
Volume 2
2004 TOYOTA New Car Features
RM1071U1
RM1071U2
NCF257U
All information in this manual is based on the latest product
information at the time of publication. However, specifications
and procedures are subject to change without notice.
Page 1908 of 3115

2003
All rights reserved. This book may not be
reproduced or copied, in whole or in part, without
the written permission of Toyota Motor
Corporation.
2004 LAND CRUISER (EWD548U)
1
2004 LAND CRUISER
ELECTRICAL WIRING DIAGRAM
Section Code Page
INTRODUCTION A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HOW TO USE THIS MANUAL B. . . . . . . . . . . . . . . . . .
3
TROUBLESHOOTING C. . . . . . . . . . . . . . . . . . . . . . . . .
12
ABBREVIATIONS D. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
GLOSSARY OF TERMS AND SYMBOLS E. . . . . . . .
18
RELAY LOCATIONS F. . . . . . . . . . . . . . . . . . . . . . . . . . .
20
ELECTRICAL WIRING ROUTING G. . . . . . . . . . . . . . .
68
SYSTEM CIRCUITS H. . . . . . . . . . . . . . . . . . . . . . . . . . .
93
GROUND POINT I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
376
POWER SOURCE (Current Flow Chart) J. . . . . . . . .
384
CONNECTOR LIST K. . . . . . . . . . . . . . . . . . . . . . . . . . . .
394
PART NUMBER OF CONNECTORS L. . . . . . . . . . . . .
406
OVERALL ELECTRICAL WIRING DIAGRAM M. . . . .
410
Page 1909 of 3115

2004 LAND CRUISER (EWD548U)
2A INTRODUCTION
This manual consists of the following 13 sections:
No.
SectionDescription
A
INDEXIndex of the contents of this manual.
A
INTRODUCTIONBrief explanation of each section.
BHOW TO USE THIS
MANUALInstructions on how to use this manual.
CTROUBLE-
SHOOTINGDescribes the basic inspection procedures for electrical circuits.
DABBREVIATIONSDefines the abbreviations used in this manual.
E
GLOSSARY OF
TERMS AND
SYMBOLS
Defines the symbols and functions of major parts.
FRELAY LOCATIONSShows position of the Electronic Control Unit, Relays, Relay Block, etc.
This section is closely related to the system circuit.
GELECTRICAL
WIRING ROUTINGDescribes position of Parts Connectors, Splice points, Ground points, etc.
This section is closely related to the system circuit.
INDEXIndex of the system circuits.
H
SYSTEM CIRCUITS
Electrical circuits of each system are shown from the power supply through ground
points. Wiring connections and their positions are shown and classified by code
according to the connection method. (Refer to the section, ºHow to use this manualº).
The ºSystem Outlineº and ºService Hintsº useful for troubleshooting are also contained
in this section.
IGROUND POINTShows ground positions of all parts described in this manual.
JPOWER SOURCE
(Current Flow Chart)Describes power distribution from the power supply to various electrical loads.
KCONNECTOR LISTDescribes the form of the connectors for the parts appeared in this book.
This section is closely related to the system circuit.
LPART NUMBER OF
CONNECTORSIndicates the part number of the connectors used in this manual.
M
OVERALL
ELECTRICAL
WIRING DIAGRAM
Provides circuit diagrams showing the circuit connections.
Page 1910 of 3115

2004 LAND CRUISER (EWD548U)
3 HOW TO USE THIS MANUAL B
This manual provides information on the electrical circuits installed on vehicles by
dividing them into a circuit for each system.
The actual wiring of each system circuit is shown from the point where the power
source is received from the battery as far as each ground point. (All circuit
diagrams are shown with the switches in the OFF position.)
When troubleshooting any problem, first understand the operation of the circuit
where the problem was detected (see System Circuit section), the power source
supplying power to that circuit (see Power Source section), and the ground points
(see Ground Point section). See the System Outline to understand the circuit
operation.
When the circuit operation is understood, begin troubleshooting of the problem
circuit to isolate the cause. Use Relay Location and Electrical Wiring Routing
sections to find each part, junction block and wiring harness connectors, wiring
harness and wiring harness connectors, splice points, and ground points of each
system circuit. Internal wiring for each junction block is also provided for better
understanding of connection within a junction block.
Wiring related to each system is indicated in each system circuit by arrows
(from__, to__). When overall connections are required, see the Overall Electrical
Wiring Diagram at the end of this manual.
Page 1911 of 3115
[A]
[B]
[H] [D]
[F] [E]
[ I ]
[L]
[M][J]
[K][G] [C]
1 2
IBIB
34
4 7
2111134
1 2
6 3
1 2
B18
BLRL
GR
B18 GR
3 4
Rear Combination Light RH R 7
Rear Combination Light LH R 6
High Mounted
Stop Light H17Light Failure Sensor Stop Light SW
ABS ECUS 6
Combination
Meter C 7
BV11
WB(Shielded) BV11I 5 GWIB 2IB 1
IE1 14
BO
50
8L 4 15A
STOP7.5A
GAUGE From Power Source System (See Page 66)
Stop Light
GR WB WB
WB
WBGB
YG RLR GR
WR GW WB
GW
W/ G)
(
S/D)
L L(
(
S/D)
Stop
Stop
Rear
Lights
2004 LAND CRUISER (EWD548U)
4B HOW TO USE THIS MANUAL
*The system shown here is an EXAMPLE ONLY. It is different to the actual
circuit shown in the SYSTEM CIRCUITS SECTION.
Page 1912 of 3115
![TOYOTA LAND CRUISER 1998 Factory Repair Manual 2004 LAND CRUISER (EWD548U)
5 B
[A]: System Title
[B]: Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish it
from the J/B
Example: Indicates Relay TOYOTA LAND CRUISER 1998 Factory Repair Manual 2004 LAND CRUISER (EWD548U)
5 B
[A]: System Title
[B]: Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish it
from the J/B
Example: Indicates Relay](/manual-img/14/57459/w960_57459-1911.png)
2004 LAND CRUISER (EWD548U)
5 B
[A]: System Title
[B]: Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish it
from the J/B
Example: Indicates Relay Block No.1
[C]: ( ) is used to indicate different wiring and
connector, etc. when the vehicle model, engine
type, or specification is different.
[D]: Indicates related system.
[E]: Indicates the wiring harness and wiring harness
connector. The wiring harness with male terminal is
shown with arrows (
).
Outside numerals are pin numbers.
Female Male ( )
The first letter of the code for each wiring harness
and wiring harness connector(s) indicates the
component's location, e.g, ºEº for the Engine
Compartment, ºIº for the Instrument Panel and
Surrounding area, and ºBº for the Body and
Surrounding area.
When more than one code has the first and second
letters in common, followed by numbers (e.g, IH1,
IH2), this indicates the same type of wiring harness
and wiring harness connector.
[F]: Represents a part (all parts are shown in sky blue).
The code is the same as the code used in parts
position.
[G]: Junction Block (The number in the circle is the J/B
No. and the connector code is shown beside it).
Junction Blocks are shaded to clearly separate
them from other parts.
3C indicates that
it is inside
Junction Block
No.3
Example:
[H]: Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red G = Green LG = Light Green
P = Pink Y = Yellow GR = Gray
O = Orange
The first letter indicates the basic wire color and the
second letter indicates the color of the stripe.
Example: L - Y
L
(Blue)Y
(Yellow)
[I]: Indicates a wiring Splice Point (Codes are ºEº for the
Engine Room, ºIº for the Instrument Panel, and ºBº
for the Body).
The Location of splice Point I 5 is indicated by the
shaded section.
[J]: Indicates a shielded cable.
[K]: Indicates the pin number of the connector.
The numbering system is different for female and
male connectors.
Example:
Numbered in order
from upper left to
lower rightNumbered in order
from upper right to
lower left
Female
Male
[L]: Indicates a ground point.
The first letter of the code for each ground point(s)
indicates the component's location, e.g, ºEº for the
Engine Compartment, ºIº for the Instrument Panel
and Surrounding area, and ºBº for the Body and
Surrounding area.
[M]: Page No.