4Runner 2007
2007 4RUNNER
ELECTRICAL WIRING DIAGRAM
Section Code
INTRODUCTION A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HOW TO USE THIS MANUAL B. . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING C. . . . . . . . . . . . . . . . . . . . . . . . . .
ABBREVIATIONS D. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GLOSSARY OF TERMS AND SYMBOLS E. . . . . . . . . 18
RELAY LOCATIONS F. . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL WIRING ROUTING G. . . . . . . . . . . . . . .
SYSTEM CIRCUITS H. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
3
12
17
20
32
52
GROUND POINT I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POWER SOURCE (Current Flow Chart) J. . . . . . . . .
CONNECTOR LIST K. . . . . . . . . . . . . . . . . . . . . . . . . . . .
PART NUMBER OF CONNECTORS L. . . . . . . . . . . . .
OVERALL ELECTRICAL WIRING DIAGRAM M. . . . .
368
376
386
406
412
4RUNNER (EM03M0U)
1
A INTRODUCTION
A
H
This manual consists of the following 13 sections:
No. Section Description
INDEX Index of the contents of this manual.
INTRODUCTION Brief explanation of each section.
HOW TO USE THIS
B
MANUAL
TROUBLE–
C
SHOOTING
D ABBREVIATIONS Defines the abbreviations used in this manual.
GLOSSARY OF
TERMS AND
E
SYMBOLS
Instructions on how to use this manual.
Describes the basic inspection procedures for electrical circuits.
Defines the symbols and functions of major parts.
F RELAY LOCATIONS
ELECTRICAL
G
WIRING ROUTING
INDEX Index of the system circuits.
SYSTEM CIRCUITS
I GROUND POINT Shows ground positions of all parts described in this manual.
POWER SOURCE
J
(Current Flow Chart)
K CONNECTOR LIST
PART NUMBER OF
L
CONNECTORS
Shows position of the Electronic Control Unit, Relays, Relay Block, etc.
This section is closely related to the system circuit.
Describes position of Parts Connectors, Splice points, Ground points, etc.
This section is closely related to the system circuit.
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, ”How to use this manual”).
The ”System Outline” and ”Service Hints” useful for troubleshooting are also contained
in this section.
(Only wiring information for complete circuits is included.)
Describes power distribution from the power supply to various electrical loads.
Describes the form of the connectors for the parts appeared in this book.
This section is closely related to the system circuit.
Indicates the part number of the connectors used in this manual.
OVERALL
ELECTRICAL
M
WIRING DIAGRAM
Provides circuit diagrams showing the circuit connections.
(Only wiring information for complete circuits is included.)
2
4RUNNER (EM03M0U)
FOREWORD
This wiring diagram manual has been prepared to provide
information on the electrical system of the 2007 4RUNNER.
Applicable models: UZN210, 215 Series
GRN210, 215 Series
Refer to the following manuals for additional service
specifications and repair procedures for these models:
Manual Name
" 2007 4RUNNER Repair Manual
" 2007 TOYOTA New Car Features
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.
Pub. No.
RM03M0U
NM04J0U
NOTICE
Always follow the directions given in the above repair manuals when handling
supplemental restraint system components (such as removal, installation,
inspection, etc.) in order to prevent accidents and supplemental restraint
system malfunction.
!2006
All ri ghts reser ved. This bo ok may not be
reproduced or copied, in whole or in part, without
the written permi ssion of Toyota Motor
Corporation.
First Printing : Jul. 06, 2006 01–060706–00
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 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.
4RUNNER (EM03M0U)
3
B 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.
[A]
Stop Light
[D]
Skid Control ECU
with Actuator
[B]
G – W
(BAT)
2
1
W – RG – W
2
1
G – W
15A
STOP
S6
Stop Light SW
(IG)
7.5A
GAUGE
34
IB
R
[N]
(S/D)
[C]
IE114
LL
(W/G)
IE1
15
L
[E]
(S/D) (S/D)
[F]
IB
R – L
3C
7
[G]
3C
15
R – L
4
Rear
Lights
C7
13
Y – G
Combination Meter
L4
7
Light Failure Sensor
12
48
11
[H]
1
G – R
BV1
G – R G – R
4
Stop
Rear Combination
R7
3
W – B G – R
Light RH
1
BV1
3
6
W – BW – B
W – B
BO BL
Stop
[I]
Rear Combination
R6
Light LH
[L]
[J]
(Shielded)
[K]
G – B
2
1
W – B
H17
High Mounted
Stop Light
W – B
4
50
[M]
4RUNNER (EM03M0U)
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 di fferen t 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, ”E” for the Engine
Compartment, ”I” for the Instrument Panel and
Surroundi ng area, and ”B ” for the Body an d
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.
[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
Example:
[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 right
Numbered in order
from upper right to
lower left
Example:
3C indicates that
it is inside
Junction Block
No.3
[L] :Indicates a ground point.
The first letter of the code for each ground point(s)
indicates the component’s location, e.g, ”E” for the
Engine Compartment, ”I” for the Instrument Panel
and Surrounding area, and ”B” for the Body and
Surrounding area.
[M] : Page No.
[N] : Indicates the ignition key position(s) when the
power is supplied to the fuse(s).
4RUNNER (EM03M0U)
Female
Male
5
B HOW TO USE THIS MANUAL
[O]
[P]
[Q]
[R]
System Outline
Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.
When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows
through the rear lights warning light to TERMINAL 4 of the light failure sensor.
Stop Light Disconnection Warning
When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the current
flowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects the
disconnection and the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lights
warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warning
circuit on and holds the warning light on until the ignition SW is turned off.
: Parts Location
Code See Page Code See Page Code See Page
C7 34 L4 36 R7 37
H17 36 R6 37 S6 35
: Relay Blocks
Code See Page Relay Blocks (Relay Block Location)
1 18 R/B No.1 (Instrument Panel Brace LH)
: Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
3C 22 Instrument Panel Wire and J/B No.3 (Instrument Panel Brace LH)
IB 20 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
[S]
[T]
: Connector Joining Wire Harness and Wire Harness
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE1 42 Floor Wire and Instrument Panel Wire (Left Kick Panel)
BV1 50 Luggage Room Wire and Floor Wire (Luggage Room Left)
: Ground Points
Code See Page Ground Points Location
BL 50 Under the Left Center Pillar
BO 50 Back Panel Center
6
4RUNNER (EM03M0U)
B
[O] :Explains the system outline.
[P] : Indicates the reference page showing the position on the vehicle of the parts in the system circuit.
Example : Part ”L4” (Light Failure Sensor) is on page 36 of the manual.
∗ The letter in the code is from the first letter of the part, and the number indicates its order in parts
starting with that letter.
Example : L 4
[Q] : Indicates the reference page showing the position on the vehicle of Relay Block Connectors in the system circuit.
Example : Connector ”1” is described on page 18 of this manual and is installed on the left side of the instrument
panel.
[R] : Indicates the reference page showing the position on the vehicle of J/B and Wire Harness in the system circuit.
Example : Connector ”3C” connects the Instrument Panel Wire and J/B No.3. It is described on page 22 of this
manual, and is installed on the instrument panel left side.
Parts is 4th in order
Light Failure Sensor
[S] : Indicates the reference page describing the wiring harness and wiring harness connector (the female wiring
harness is shown first, followed by the male wiring harness).
Example : Connector ”IE1” connects the floor wire (female) and Instrument panel wire (male). It is described on
page 42 of this manual, and is installed on the left side kick panel.
[T] : Indicates the reference page showing the position of the ground points on the vehicle.
Example : Ground point ”BO” is described on page 50 of this manual and is installed on the back panel center.
4RUNNER (EM03M0U)
7
B 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 (
checked this way.
I GROUND POINT
EA, IB
and
IC
shown below) can also be
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 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 Motor
W–B
5
W–B
5
W–B
5
W–B
5
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–B
W–B
W–B
W–B W–B W–B
W–B
BR
W–B
4
5
BR BR
W–B
W–B
W–B
W–B
2
IA1
8
IB1
W–B
444
4
4BA1
Cigarette Lighter
O/D Main SW
Clock
Front Fog Light RH
Front Fog Light LH
Brake Fluid Level SW
W–B
W–B
10
EA2
W–B
EA
W–B
W–B
A
W–B
A
W–B
A
A
A
A
J 1
Junction
Connector
7
3B
7
3C
1
3D
3
3F
13
3G
5
3E
6
3E
W–B
W–B
15
ID1
W–B W–B
W–B (4A–GZE)
W–B
4
W–B
3
IC3
BR
W–B
W–B
W–BW–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–BW–B W–B
W–B
W–B
W–B
W–B
W–BW–B
A/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
Combination 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
BR
Combination Meter
BRBR
Combination Meter
BR
Fuel Sender
W–B
IB
IC
* The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
8
4RUNNER (EM03M0U)
B
The ”Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers)
transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system
are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully
understood.
J POWER SOURCE (Current Flow Chart)
The chart below shows the route by which current flows from the battery to each electrical source
(Fusible Link, Circuit Breaker, Fues, etc.) and other parts
Battery
30A AM2
Starter
2
S 2
Fusible Link Block
100A ALT
Engine Room R/B (See Page 20)
System
ABS
ABS and Traction Control
Cruise Control
Electronically Controlled Transmission
Multiplex Communication System
Cigarette Lighter
Combination Meter
Headlight
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off System
Theft Deterrent and Door Lock Control
20A
10A
Fuse
STOP
DOME
Power Source
6
6
Short Pin
15A EFI
10A HAZARD
20A RADIO NO.1
10A HORN
60A ABS
10A ECU–B
2
7.5A DOME
2
5
2
Page
194
187
180
166
210
214
230
112
122
1
B
BA1
B
2
B
2
1.25B
FL MAIN
W
50A MAIN
7.5A AM1
15A HAZ–RADIO
1
Battery
W – R
W
EB1
EB1
7
6
21
2
21
2
2
2
ACC
WW
W – R
8
AM1
IG1
ST1
2
W
W
4
AM2
I8
Ignition SW
IG2
ST2
B – Y
7.5A DOME
1
1
20A DEFOG
121W – R
1
2
R
1
∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
9
4RUNNER (EM03M0U)
B HOW TO USE THIS MANUAL
K CONNECTOR LIST
I14
Dark Gray
[A]
I15
I16
Gray
[C]
1234
1234
5678
J1 J4 K1 K2 L1
Black
AB
B
AABCCCDDDD
[B]
A
AAA
A
K CONNECTOR LIST
Black
BA1
123 45
678910111213
13 6789101112
12345 76
[D]
Dark Gray
AAA
[E]
12345
1
12 34
567891011
12
BD2
12
Gray
43 21
11
[F]
5678910
[A] : Indicates connector to be connected to a part. (The numeral indicates the pin No.)
[B] : Junction Connector
Indicates a connector which is connected to a short terminal.
Junction Connector
Junction connector in this manual include a short terminal which is
connected to a number of wire harnesses. Always perform
inspection with the short terminal installed. (When installing the
wire harnesses, the harnesses can be connected to any position
within the short terminal grouping. Accordingly, in other vehicles,
the same position in the short terminal may be connected to a wire
harness from a different part.)
Wire harness sharing the same short terminal grouping have the
same color.
Same Color
Short Terminal
[C] : Parts Code
The first letter of the code is taken from the first letter of part, and the numbers indicates its order in parts which
start with the same letter.
[D] : Connector Color
Connectors not indicated are milky white in color.
[E] : Indicates the connector shapes which are used to join wire harnesses.
On Left : Female connector shapes
On Right : Male connector shapes
Numbers indicate pin numbers.
[F] : Indicates connector colors. (Connectors with not indicated colors are white)
10
4RUNNER (EM03M0U)
L PART NUMBER OF CONNECTORS
B
Code
A 1
A/C Ambient Temp. Sensor
A 2 A/C Condenser Fan Motor 90980–11237 D 5 Diode (Interior Light) 90980–10962
A 3 A/C Condenser Fan Relay 90980–10940 D 6 Diode (Moon Roof) 90980–11608
A 4 A/C Condenser Fan Resistor 90980–10928
A 5 A/C Magnetic Clutch
A 6 A/T Oil Temp. Sensor
A 7 ABS Actuator
[A]
A 8 ABS Actuator
A 9 ABS Speed Sensor Front LH
ABS Speed Sensor Front RH
A10
A11
Airbag Sensor Front LH Door Courtesy SW Rear LH
A12
Airbag Sensor Front RH Door Courtesy SW Rear RH
A13 Airbag Squib 90980–11194 Door Key Lock and Unlock SW LH
[B] [C]
[A] :Part Code
[B] : Part Name
[C] : Part Number
Toyota Part Number are indicated.
Part Number
90980–11070
90980–11271
90980–11413
90980–11151
90980–11009
90980–10941
90980–11002
90980–11856
90980–11070
Code
D 4 Diode (Courtesy)
D 7 Door Lock Control Relay 90980–10848
D 8 Door Lock Control SW LH
D 9 Door Lock Control SW RH
D10
Door Courtesy SW LH
D11
Door Courtesy SW RH
D12
Door Courtesy SW Front LH
D13
Door Courtesy SW Front RH
D14
D15
D16
D17 Door Key Lock and Unlock SW RH
Part NumberPart NamePart Name
90980–11608
90980–11148
90980–11097
90980–11156
90980–11170
Not all of the above part numbers of the connector are established for the supply.
4RUNNER (EM03M0U)
11
C TROUBLESHOOTING
SW 2
To Ignition SW
IG Terminal
Fuse
[A]
[B]
Relay
[C]
Solenoid
VOLTAGE CHECK
(a) Establish conditions in which voltage is present at the check
point.
Example:
[A] – Ignition SW on
[B] – Ignition SW and SW 1 on
[C] – Ignition SW, SW 1 and Relay on (SW 2 off)
(b) Using a voltmeter, connect the negative lead to a good ground
VoltmeterSW 1
point or negative battery terminal, and the positive lead to the
connector or component terminal.
This check can be done with a test light instead of a voltmeter.
CONTINUITY AND RESISTANCE CHECK
Ohmmeter
SW
Ohmmeter
Diode
Digital Type Analog Type
(a) Disconnect the battery terminal or wire so there is no voltage
between the check points.
(b) Contact the two leads of an ohmmeter to each of the check
points.
If the circuit has diodes, reverse the two leads and check
again.
When contacting the negative lead to the diode positive side
and the positive lead to the negative side, there should be
continuity.
When contacting the two leads in reverse, there should be no
continuity.
(c) U se a volt/ohm meter with high im pedance (10 kΩ/V
minimum) for troubleshooting of the electrical circuit.
12
4RUNNER (EM03M0U)
C
Test Light
Disconnect
To Ignition SW
IG Terminal
Fuse Case
Short [A]
SW 1
Short [B]
Disconnect
RelayLight
Short [C]
Disconnect
SW 2 Solenoid
FINDING A SHORT CIRCUIT
(a) Remove the blown fuse and disconnect all loads of the fuse.
(b) Connect a test light in place of the fuse.
(c) Establish conditions in which the test light comes on.
Example:
[A] – Ignition SW on
[B] – Ignition SW and SW 1 on
[C] – Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 off (or Disconnect SW 2)
(d) Disconnect and reconnect the connectors while watching the
test light.
The short lies between the connector where the test light
stays lit and the connector where the light goes out.
(e) Find the exact location of the short by lightly shaking the
problem wire along the body.
CAUTION:
(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched,
the IC may be destroyed by static electricity.)
(b) When replacing the internal mechanism (ECU part) of
the digital meter, be careful that no part of your body or
clothing comes in contact with the terminals of leads
from the IC, etc. of the replacement part (spare part).
DISCONNECTION OF MALE AND FEMALE
CONNECTORS
To pull apart the connectors, pull on the connector itself, not
the wire harness.
HINT : Check to se e what kind of c onnector you a re
disconnecting before pulling apart.
Pull Up
Press Down Press Down
Pull Up
4RUNNER (EM03M0U)
13
C TROUBLESHOOTING
Reference:
!"
!
Example:
(Case 1)
Terminal Retainer
HOW TO REPLACE TERMINAL
(with terminal retainer or secondary locking device)
1. PREPARE THE SPECIAL TOOL
#
"$%
Up
Tool
!
(mm)
HINT : To remove the terminal from the connector, please
construct and use the special tool or like object shown on
the left.
2. DISCONNECT CONNECTOR
3. DIS EN GAGE THE S EC ON DARY LOCKING DEVICE OR
TERMINAL RETAINER.
(a) Locking device must be disengaged before the terminal
locking clip can be released and the terminal removed from
the connector.
(b) Use a special tool or the terminal pick to unlock the secondary
locking device or terminal retainer.
NOTICE:
Do not remove the terminal retainer from connector body.
Terminal Retainer
[Retainer at Full Lock Position]
Stopper
[Retainer at Temporary Lock Position]
Example:
(Case 2)
Terminal
Retainer
Secondary
Locking Device
[A] For Non–Waterproof Type Connector
HINT : The needle insertion position varies according to the
connector’s shape (number of terminals etc.), so
check the position before inserting it.
”Case 1”
Raise the terminal retainer up to the temporary lock
position.
”Case 2”
Open the secondary locking device.
14
4RUNNER (EM03M0U)
Tab
Tab
C
Tool
Example:
(Case 1)
Tool
[Male]
Terminal
Retainer
Access Hole
( Mark)
Retainer
at Full Lock Position
[Female]
Tool
[B] For Waterproof Type Connector
HINT : Terminal retainer color is different
according to connector body.
Example:
Terminal Retainer
: Connector Body
Black or White : Gray
Black or White : Dark Gray
Gray or White : Black
”Case 1”
Type where terminal retainer is pulled
up to the temporary lock position (Pull
Type).
Insert the special tool into the terminal
retainer access hole (!Mark) and pull
the t erminal re tainer up to the
temporary lock position.
HINT : The needle insertion position varies
according to the connector’s shape
(Number of terminals etc.), so check
the position before inserting it.
Example:
(Case 2)
[Male]
Retainer
at Temporary Lock Position
[Male] [Female]
Terminal Retainer
Tool
Press Down
Press Down
[Female]
4RUNNER (EM03M0U)
”Case 2”
Type whic h cannot be pulled as far as
Power Lock insert the tool straight into
the access hole of terminal retainer as
shown.
Tool
15
C TROUBLESHOOTING
Retainer at
Full Lock Position
Retainer at
Temporary Lock Position
[Male] [Female]
Push the terminal retainer down to the temporary lock position.
Locking Lug
(c) Release the locking lug from terminal and pull the terminal out
from rear.
Tool
4. INSTALL TERMINAL TO CONNECTOR
(a) Insert the terminal.
HINT:
1. Make sure the terminal is positioned correctly.
2. Insert the terminal until the locking lug locks firmly.
3. Insert the terminal with terminal retainer in the temporary lock
position.
16
(b) Push the secondary locking device or terminal retainer in to
the full lock position.
5. CONNECT CONNECTOR
4RUNNER (EM03M0U)
ABBREVIATIONS
The following abbreviations are used in this manual.
2WD = Two Wheel Drive Vehicles
4WD = Four Wheel Drive Vehicles
A/C = Air Conditioning
A/T = Automatic Transmission
ABS = Anti–Lock Brake System
ACIS = Acoustic Control Induction System
ADD = Automatic Disconnecting Differential
BEAN = Body Electronics Area Network
CAN = Controller Area Network
CD = Compact Disc
DIFF. = Differential
EC = Electrochromic
ECU = Electronic Control Unit
ABBREVIATIONS D
ESA = Electronic Spark Advance
ETCS–i = Electronic Throttle Control System–intelligent
IC = Integrated Circuit
INT = Intermittent
J/B = Junction Block
LH = Left–Hand
LSD = Limited Slip Differential
R/B = Relay Block
RH = Right–Hand
SFI = Sequential Multiport Fuel Injection
SPEC. = Specification
SRS = Supplemental Restraint System
SW = Switch
TEMP. = Temperature
TRAC = Traction Control
TVIP = TOYOTA Vehicle Intrusion Protection
VSC = Vehicle Stability Control
VSV = Vacuum Switching Valve
VVT = Variable Valve Timing
VVT–i = Variable Valve Timing–intelligent
w/ = With
w/o = Without
∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being
abbreviations.
4RUNNER (EM03M0U)
17
E GLOSSARY OF TERMS AND SYMBOLS
FUSIBLE LINK
FUSIBLE LINK
BATTERY
Stores chemical energy and
converts it into electrical energy.
Provides DC current for the auto’s
various electrical circuits.
CAPACITOR (Condenser)
A small holding unit for temporary
storage of electrical voltage.
CIGARETTE LIGHTER
An electric resistance heating
element.
CIRCUIT BREAKER
Basically a reusable fuse, a circuit
breaker will heat and open if too
much current flows through it.
Some units automatically reset when
cool, others must be manually reset.
DIODE
A semiconductor which allows
current flow in only one direction.
1. SINGLE
FILAMENT
2. DOUBLE
FILAMENT
GROUND
The point at which wiring attaches to
the Body, thereby providing a return
path for an electrical circuit; without a
ground, current cannot flow.
HEADLIGHTS
Current flow causes a headlight
filament to heat up and emit light. A
headlight may have either a single
(1) filament or a double (2) filament
HORN
An electric device which sounds a
loud audible signal.
IGNITION COIL
Converts low–voltage DC current
into high–voltage ignition current for
firing the spark plugs.
(for Medium Current Fuse)
(for High Current Fuse or
Fusible Link)
DIODE, ZENER
A diode which allows current flow in one
direction but blocks reverse flow only up
to a specific voltage. Above that potential,
it passes the excess voltage. This acts as
a simple voltage regulator.
PHOTODIODE
The photodiode is a semiconductor
which controls the current flow
according to the amount of light.
DISTRIBUTOR, IIA
Channels high–voltage current from
the ignition coil to the individual
spark plugs.
FUSE
A thin metal strip which burns through
when too much current flows through it,
thereby stopping current flow and
protecting a circuit from damage.
A heavy–gauge wire placed in high
amperage circuits which burns through on
overloads, thereby protecting the circuit.
The numbers indicate the crosssection
surface area of the wires.
FUEL
M
LIGHT
Current flow through a filament
causes the filament to heat up and
emit light.
LED (LIGHT EMITTING DIODE)
Upon current flow, these diodes emit
light without producing the heat of a
comparable light.
METER, ANALOG
Current flow activates a magnetic
coil which causes a needle to move,
thereby providing a relative display
against a background calibration.
METER, DIGITAL
Current flow activates one or many
LED’s, LCD’s, or fluorescent
displays, which provide a relative or
digital display.
MOTOR
A power unit which converts
electrical energy into mechanical
energy, especially rotary motion.
18
4RUNNER (EM03M0U)
E
Opens and closes
operational.
black dot at the junction are
black dot at the junction are
RELAY
1. NORMALLY
CLOSED
2. NORMALLY
OPEN
RELAY, DOUBLE THROW
RESISTOR
RESISTOR, TAPPED
RESISTOR, VARIABLE or RHEOSTAT
Basically, an electrically operated
switch which may be normally
closed (1) or open (2).
Current flow through a small coil
creates a magnetic field which either
opens or closes an attached switch.
A relay which passes current
through one set of contacts or the
other.
An electrical component with a fixed
resistance, placed in a circuit to
reduce voltage to a specific value.
A resistor which supplies two or
more different non adjustable
resistance values.
A controllable resistor with a variable
rate of resistance.
Also called a potentiometer or
rheostat.
SPEAKER
An electromechanical device which
creates sound waves from current
flow.
SWITCH, MANUAL
Opens and closes
1. NORMALLY
OPEN
2. NORMALLY
CLOSED
SWITCH, DOUBLE THROW
A switch which continuously passes
current through one set of contacts
or the other.
SWITCH, IGNITION
A key operated switch with several
positions which allows various
circuits, particularly the primary
ignition circuit, to become
operational.
circuits, thereby
stopping (1) or
allowing (2) current
flow.
(Reed Switch Type)
SENSOR (Thermistor)
A resistor which varies its resistance
with temperature.
SENSOR, SPEED
Uses magnetic impulses to open
and close a switch to create a signal
for activation of other components.
SHORT PIN
Used to provide an unbroken
connection within a junction block.
SOLENOID
An electromagnetic coil which forms
a magnetic field when current flows,
to move a plunger, etc.
SWITCH, WIPER PARK
Automatically returns wipers to the
stop position when the wiper switch
is turned off.
TRANSISTOR
A solidstate device typically used as
an electronic relay; stops or passes
current depending on the voltage
applied at ”base”.
WIRES
(1) NOT
CONNECTED
(2) SPLICED
Wires are always drawn as
straight lines on wiring
diagrams.
Crossed wires (1) without a
not joined;
crossed wires (2) with a
black dot or octagonal ( )
mark at the junction are
spliced (joined)
connections.
19
4RUNNER (EM03M0U)
F RELAY LOCATIONS
t
[Engine Compartment]
Engine Room R/B No.3Skid Control ECU
with Actuator
Air Injection
Control Driver
[Body]
Moon Roof Control ECU
Engine Room
R/B
Engine Room R/B No.4
Rear Seat Audio Controller Tire Pressure Warning
Antenna and Receiver
Stereo Componen
Amplifier
20
Towing Converter Relay
4RUNNER (EM03M0U)
Door Control Receiver Back Door ECU
[Instrument Panel]
l
l
l
y
F
Suspension
Control ECU
Turn Signal
Flasher Relay
Daytime Running
Light Relay
Transponder Key
Amplifier
Driver Side J/B
Center J/B
Body ECU
Theft Deterrent
ECU
Airbag Sensor
Assembly
Transponder Ke
Computer
Engine Contro
Module
4WD Contro
ECU
Tire Pressure
Warning ECU
A/C Contro
Assembly
Shift Lock
Control ECU
[Seat]
ECU and SW
Occupant Classification ECUPosition Control
21
4RUNNER (EM03M0U)
F RELAY LOCATIONS
2
: Engine Room R/B Engine Compartment Left (See Page 20)
* 1:ACC CUT Relay
* 2:FR FOG Relay
* 3:STA Relay
* 4:HEATER Relay
* 5:MG CLT Relay
* 6:RADIO NO.1
* 7:C/OPN Relay
* 8:DOME Relay
* 9:EFI Relay
* 10:A/F HEATER Relay
* 11:HEAD (LO LH)
* 12:HEAD (HI LH)
40A TOWING
(for High Current)
30A BATT CHG
(for High Current)
50A J/B
(for High Current)
30A TOWING BRK
(for High Current)
50A AM1
(for High Current)
50A AIR SUS
(for High Current)
50A A/PUMP
(for High Current)
140A ALT
(for High Current)
7.5A
12
OBD
15A
12
FR FOG
15A
12
AC115V INV
10A
12
STOP
1
*3
*2 *4
21
2
*1
21
21
21
21
21
IG Relay DEFOG Relay
5
21
3
*5
3
5
12
354
12
7.5A
AIRSUS NO.2
HEATER NO.2
3
5
12
3
5
1
2
4321
12
AC115V INV Relay
3
5
42
1
3
5
12
2
1
12
12
1
10A
25A
30A
DEFOG
2
SEAT HEATER
10A 2
HEAD (LO RH)
212
*11
10A
HEAD (HI RH)
MIR HEATER
10A
FUEL PUMP Relay
3
5
2
14
35
*10
35
*9
10A
2
*12
1
2
10A
*8
*7
2
10A
EFI NO.2
1
5
3
ECU-B
10A 2
*6
20A12
DOME
10A 2
3
5
12
3
5
142
21
RADIO NO.2
2
1
2
1
2
1
A/F HEATER
3
20A21
TOWING
30A21
DR/LCK
20A21
EFI
20A21
ETCS
10A21
TRN-HAZ
15A21
15A21
HORN
10A21
ALT-S
7.5A21
Short Pin
221
1
1
2
1
2
2
5
1
60A HEATER
(for High Current)
30A ABS SOL
(for High Current)
30A AM2
(for High Current)
40A ABS MTR
(for High Current)
HEAD Relay
22
STOP LP CTRL Relay
4RUNNER (EM03M0U)
3
: Engine Room R/B No.3 Engine Compartment Left (See Page 20)
F
3
12
5
TOWING TAIL RelayBATT CHG Relay
4
: Engine Room R/B No.4 Engine Compartment Left (See Page 20)
3
12
5
3
12
5
AIR SUS Relay
4RUNNER (EM03M0U)
23
F RELAY LOCATIONS
: Driver Side J/B Lower Finish Panel (See Page 21)
4WD
20A
FR WIP-WSH
30A
STA NO.2
7.5A
GAUGE
7.5A
SRS
10A
IGN
10A
2019 1817
10 9 8 7
161514 1312 11
654321
(from Roof Wire)
1A
910
654321
87
1920 16 1514 13 121118 17
IG1
15A
ECU-IG
10A
RR WSH
15A
PWR OUTLET
15A
P P/SEAT
30A
D P/SEAT
30A
SECU/HORN
CIG
10A
ACC
7.5A
TAIL
10A
10A
12
21
12345
678910111213
1B
123 45
678910111213
(from Engine Room Main Wire)
30A POWER
(for Medium Current)
1C
12
216
5
4
3
(from Engine Room Main Wire)
1D
6
5
4
123
(from Engine Room Main Wire)
9101112 8 7 6 5 4 3 2 1
21222324 20 19 1817 16 1514 13
7865432
1516 14 13 12 1110
1F 1E
1516
78152364
913 101114 12
(from Floor No.2 Wire)
1
9
1817 1615 1413201924 2322 21
6543218712 1110 9
(from Engine Room Main Wire)
24
4RUNNER (EM03M0U)
Body ECU
1
13
2
14
3
15
4
16
5
17
6
18
7
19
8
20
9
21
10
22
11
23
12
24
F
POWER Relay
TAIL Relay
HORN Relay
1H
12
34
(from Instrument
Panel Wire)
35
21
9
1
2
1
34
35
15 161413121110
7865432
2
1
222120191817
654321
35
25262423
9 1087
2
1
35
323130292827
161514131211
4
2
3
2
1
1
2122 23 242019181716151413
9 10 111287654321
1K 1L 1J
16 15 14 1013 1211
87 6 254 13
9
87 1211109
654321
181716151413 2019 24232221
1G
DC SKT Relay
4
3
2
1
(from Instrument
Panel Wire)
17181920212223242526272829303132
12345678910111213141516
(from Instrument Panel Wire)
(from Instrument Panel Wire) (from Instrument Panel Wire)
25
4RUNNER (EM03M0U)
F RELAY LOCATIONS
[Driver Side J/B Inner Circuit]
13
10
10
23
24
17
18
15
22
19
10
10
3
1D
1L
4
1D
1J
6
1D
2
1L
1
1J
2
1J
1F
1
1C
1J
7
1E
8
1E
1J
2
1G
1
1L
9
1F
5
1J
1E
1E
6
1J
3
1G
4
1J
1F
6
1E
1J
9
1A
4
1A
1A
5
1D
3
1E
1A
1E
7.5A STA NO.2
10A IGN
7.5A GAUGE
10A SRS
10A SECU/HORN
30A P P/SEAT
30A D P/SEAT
30A POWER
15
TAIL Relay
5
1
15A PWR OUTLET
7.5A ACC
23
3
2
10A CIG
POWER Relay
2
10A TAIL
DC SKT Relay
3
1
HORN Relay
5
1
5
2
3
21
15
23
11
20
10
12
14
32
29
25
11
21
11
13
16
30
31
17
2
1K
4
1K
1E
1L
1E
1J
4
1G
1L
3
1H
4
1H
1K
1K
1K
1J
1J
1
1A
1
1H
1J
2
1F
1A
1J
9
1B
1B
5
1L
1F
1E
1J
1J
8
1K
1L
1
1D
26
1
2
(Cont. Next Page)
4RUNNER (EM03M0U)
13
1K
(Cont'd)
F
17
18
20
15
16
16
12
14
15
16
18
21
22
23
24
11
16
24
12
16
26
2
1C
1
1E
2
1E
1J
1J
1J
1K
1L
1K
4
1F
4
1B
5
1B
4
1L
1F
1J
1J
1J
6
1B
1L
1L
1L
1L
1L
6
1F
8
1B
1
1G
1K
5
1A
9
1K
8
1A
1A
1E
1J
1F
9
1E
1J
7 8 11 5 1 10 18 22 4
BZR2
BECU
24
17
14
13
12
3
HAZ
ACT-
HRLY
SPD
ILE
STPI
BDR1
LSR
15A IG1
10A ECU-IG
30A FR WIP-WSH
15A RR WSH
20A 4WD
Body ECU
WIG
SIG
TRLY
ACC
GND1
21
PWS
WMTR
GND2
L1
L2
UL1
ACT+
RDEF
BZR
16
19
20
15
23
2
6
9
20
12
28
22
11
12
13
13
12
15
13
14
18
10
11
12
14
10
1E
8
1J
2
1A
7
1K
1E
1J
8
1F
3
1A
1E
9
1J
3
1L
1F
1B
1B
6
1K
1J
2
1H
1A
1A
1A
7
1A
6
1A
1A
1A
5
1K
3
1K
1
1K
6
1L
9
1L
1L
1L
1L
1F
1
1B
3
1B
1B
4RUNNER (EM03M0U)
27
F RELAY LOCATIONS
: Center J/B Instrument Panel Brace RH (See Page 21)
Black
AA A
BBBB B
3A 3B
(from Instrument Panel Wire)
AAA
BBBBB
AA
BBBBB
AAAA
BBBBBB
B
(from Instrument Panel Wire)
AA
Gray
AAABBBBCCC
3C
DDDEEEFFFGGG
AAABB BBCC
DDD EE E F F F GGG
C
(from Instrument Panel Wire)
Black
AAAAABBBB
CCCDDDDDDDD
3D
AAAAA BBBB
CCC DD D D DD DD
(from Instrument Panel Wire)
Dark Gray
AAABBBBBBB
CCCDDDEEEFFF
3E
AAA
CCCBDBDDEE
BBEBBB
FFF
(from Instrument Panel Wire)
AAAAAAAAA
BBBBBBBBBBB
3F
AAA
BBBABABBBB
AABAA
BB
28
(from Instrument Panel Wire)
4RUNNER (EM03M0U)
Memo
4RUNNER (EM03M0U)
29
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