wiring TOYOTA AVENSIS 2003 Service Service Manual

AVENSIS (EWD526E)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, ”E” for the Engine
Compartment, ”I” for the Instrument Panel and
Surrounding area, and ”B” 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 ”E” for the
Engine Room, ”I” for the Instrument Panel, and ”B”
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 right Numbered 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, ”E” for the
Engine Compartment, ”I” for the Instrument Panel
and Surrounding area, and ”B” for the Body and
Surrounding area.
[M] : Page No.
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AVENSIS (EWD526E)7
B
[N]
: Explains the system outline.
[O] : Indicates values or explains the function for reference during troublesh\
ooting.
[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 num\
ber indicates its order in parts
starting with that letter.
Example : L 4
Parts is 4th in order
Light Failure Sensor
[Q] : Indicates the reference page showing the position on the vehicle of Rela\
y Block Connectors in the system circuit.
Example : Connector ”1” is described on page 18 of this manual and is installed on the left sid\
e 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 pag\
e 22 of this
manual, and is installed on the instrument panel left side.
[S] : Indicates the reference page describing the wiring harness and wiring harness con\
nector (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 o\
n the vehicle.
Example : Ground point ”BO” is described on page 50 of this manual and is installed on the back pan\
el center.
[U] : Indicates the reference page showing the position of the splice points o\
n the vehicle.
Example : Splice point ”I5” is on the Cowl Wire Harness and is described on page 44 of this manual.\
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18AVENSIS (EWD526E)
E GLOSSARY OF TERMS AND SYMBOLS
BATTERY
Stores chemical energy and
converts it into electrical energy.
Provides DC current for the auto’s
various electrical circuits.GROUNDThe point at which wiring attaches to
the Body, thereby providing a return
path for an electrical circuit; without a
ground, current cannot flow.
CAPACITOR (Condenser)A small holding unit for temporary
storage of electrical voltage.HEADLIGHTSCurrent 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
1. SINGLE
FILAMENT
CIGARETTE LIGHTER
An electric resistance heating
element.2. DOUBLE
FILAMENT
CIRCUIT BREAKERBasically 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.HORNAn electric device which sounds a
loud audible signal.
DIODEA semiconductor which allows
current flow in only one direction.IGNITION COILConverts low–voltage DC current
into high–voltage ignition current for
firing the spark plugs.
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.LIGHTCurrent flow through a filament
causes the filament to heat up and
emit light.
PHOTODIODEThe photodiode is a semiconductor
which controls the current flow
according to the amount of light.LED (LIGHT EMITTING DIODE)
Upon current flow, these diodes emit
light without producing the heat of a
comparable light.
DISTRIBUTOR, IIAChannels high–voltage current from
the ignition coil to the individual
spark plugs.METER, ANALOG
Current flow activates a magnetic
coil which causes a needle to move,
thereby providing a relative display
against a background calibration.
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.
FUSIBLE LINK
METER, DIGITALCurrent flow activates one or many
LED’s, LCD’s, or fluorescent
displays, which provide a relative or
digital display.
FUEL
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.(for Medium Current Fuse)
(for High Current Fuse or
Fusible Link)MOTOR A power unit which converts
electrical energy into mechanical
energy, especially rotary motion.
M
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AVENSIS (EWD526E)19
E
RELAY
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.
1. NORMALLY
CLOSED
2. NORMALLY
OPEN
SWITCH, MANUAL
Opens and closes
SPEAKERAn electromechanical device which
creates sound waves from current
flow.
RELAY, DOUBLE THROWA relay which passes current
through one set of contacts or the
other.
circuits, thereby
stopping (1) or
allowing (2) current
flow.1. NORMALLY
OPEN
2. NORMALLY
CLOSED
RESISTORAn electrical component with a fixed
resistance, placed in a circuit to
reduce voltage to a specific value.SWITCH, DOUBLE THROWA switch which continuously passes
current through one set of contacts
or the other.
RESISTOR, TAPPED
A resistor which supplies two or
more different non adjustable
resistance values.SWITCH, IGNITIONA key operated switch with several
positions which allows various
circuits, particularly the primary
ignition circuit, to become
operational.
RESISTOR, VARIABLE or RHEOSTAT
A controllable resistor with a variable
rate of resistance.
Also called a potentiometer or
rheostat.
SENSOR (Thermistor)A resistor which varies its resistance
with temperature.SWITCH, WIPER PARKAutomatically returns wipers to the
stop position when the wiper switch
is turned off.
(Reed Switch Type)
SENSOR, SPEEDUses magnetic impulses to open
and close a switch to create a signal
for activation of other components.TRANSISTORA solidstate device typically used as
an electronic relay; stops or passes
current depending on the voltage
applied at ”base”.
SHORT PINUsed to provide an unbroken
connection within a junction block.WIRES Wires are always drawn as
straight lines on wiring
diagrams.
Crossed wires (1) without a
black dot at the junction are
(1) NOT
CONNECTED
SOLENOID
An electromagnetic coil which forms
a magnetic field when current flows,
to move a plunger, etc.
black dot at the junction are
not joined;
crossed wires (2) with a
black dot or octagonal ( )
mark at the junction are
spliced (joined)
connections.
(2) SPLICED
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38AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[LHD : 1AZ–FSE]
A5
F6
C6
A10
H2
H6
F11
F9
(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
E4
A6
A4
E5
F5
B1
H1
H5
E2
F7
F8
H9C2H10F16H7C1H8B3B2F13F12
H12A12A3C3A11H3F4H4H11A1A2E1A9F3F1
C5
(A/T)
(*1)
(*2)
(M/T)
A 1 A/C Ambient Temp. Sensor
A 2 A/C Condenser Fan Motor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 2 Brake Booster Pressure Sensor
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 5 Counter Gear Speed Sensor
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
E 4 Electronic Driver Unit
E 5 Electronic Driver Unit
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH
F 3 Front Fog Light LH F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH Headlight RH (Low)
F 11 Front Washer Motor
F 12 Front Window Deicer
F 13 Front Wiper Motor
F 16 Fuel Pressure Sensor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 7 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 9 Heated Oxygen Sensor (Bank 2 Sensor 1)
H 10 Heated Oxygen Sensor (Bank 2 Sensor 2)
H 11 Horn LH
H 12 Horn RH
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40AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[LHD : 1AZ
–FE]
A5
F6
C6
A10
H2
H6
F11
F9(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
F5
A6
A4
B1
H1
E2
H5
F7
F8
A8C2H10A7C1H8B3F13F12
H12A12A3C3A11H3F4H4H11A1A2E1A9F3F1
C5
(A/T)
(*1)
(*2)
(M/T)
A 1 A/C Ambient Temp. Sensor
A 2 A/C Condenser Fan Motor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 7 Air Fuel Ratio Sensor (Bank 1 Sensor 1)
A 8 Air Fuel Ratio Sensor (Bank 2 Sensor 1)
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 5 Counter Gear Speed Sensor
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH Headlight RH (Low)
F 11 Front Washer Motor
F 12 Front Window Deicer
F 13 Front Wiper Motor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 10 Heated Oxygen Sensor (Bank 2 Sensor 2)
H 11 Horn LH
H 12 Horn RH
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42AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[LHD : 1ZZ–FE, 3ZZ–FE]
A5
F6
A12
A10
H2
H6
F11
F9
(*1)
(*2) *1:w/ HID
*2:w/o HID
F10
F2
F5
A6
A4
E2
B1
H1
H5
F7
F8
C2C6C1A11H7B3F13F12
A1H12A3C3H3F4H4H11E1A9F3F1
(*1)
(*2)
A 1 A/C Ambient Temp. Sensor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Compressor Assembly
C 6 Crankshaft Position Sensor
E 1 ECT Solenoid
E 2 EFI Water Temp. Sensor
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH
F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH
Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH
Headlight RH (Low)
F 11 Front Washer Motor
F 12 Front Window Deicer
F 13 Front Wiper Motor
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 7 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 11 Horn LH
H 12 Horn RH
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44AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[LHD : 1CD
–FTV]
E5
F6
A5
A10
E7
C6
E4
H2
H6
F11
F9(*1)
(*2) *1:w/ HID
*2:w/o HID
*3:Power Heater
(Hot Gas Type)
*4:Power Heater
(Electrical Type)
F10
F2
G2
A4
A6
F5
H1
H5
F7
F8
A12C1A11G1F18E3E2F16F17F15B3F13F12
H12C3A3A3
(*3) (*4)C4H3F4H4H11A1A2D1A9F3F1
B1
(*2) (*1)
F14
A 1 A/C Ambient Temp. Sensor
A 2 A/C Condenser Fan Motor
A 3 A/C Pressure Sensor
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Flow Meter
A 9 Airbag Sensor Front LH
A 10 Airbag Sensor Front RH
A 11 Alternator
A 12 Alternator
B 1 Back–Up Light SW
B 3 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 3 Compressor Assembly
C 4 Condenser Assembly
C 6 Crankshaft Position Sensor
D 1 Diesel Throttle Control Motor
E 2 EFI Water Temp. Sensor
E 3 EGR Valve Control Motor
E 4 Electronic Driver Unit
E 5 Electronic Driver Unit
E 7 Engine Oil Level Sensor
F 1 Front Clearance Light LH
F 2 Front Clearance Light RH
F 3 Front Fog Light LH
F 4 Front Fog Light RH F 5 Front Side Turn Signal Light LH
F 6 Front Side Turn Signal Light RH
F 7 Front Turn Signal Light LH
Headlight Control ECU LH
F 8 Front Turn Signal Light LH Headlight LH (Low)
F 9 Front Turn Signal Light RH Headlight Control ECU RH
F 10 Front Turn Signal Light RH Headlight RH (Low)
F 11 Front Washer Motor
F 12 Front Window Deicer
F 13 Front Wiper Motor
F 14 Fuel Filter Warning SW
F 15 Fuel Heater
F 16 Fuel Pressure Sensor
F 17 Fuel Pump
F 18 Fuel Temp. Sensor
G 1 Glow Plug
G 2 Glow Plug Relay
H 1 Headlight Beam Level Control Actuator LH
H 2 Headlight Beam Level Control Actuator RH
H 3 Headlight Cleaner Control Relay
H 4 Headlight Cleaner Motor
H 5 Headlight LH (High)
H 6 Headlight RH (High)
H 11 Horn LH
H 12 Horn RH
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46AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
[LHD]
C8
C9
C12
A30
C14
A20
A31
B5
(*2) (*1)
B6
B4
A29
A18C10C11A21A25A19
A26A28A27 * 1:Except Automatic A/C
* 2:Automatic A/C
A17A23
(*2)
A15
(*2)A14C13C7A22(*1)A24(*2)
(*1)A13
(*1)A16(*2)
A 13 A/C Control Assembly
A 14 A/C Control Assembly
A 15 A/C Control Assembly
A 16 A/C Control Assembly
A 17 A/C Room Temp. Sensor
A 18 A/C Solar Sensor
A 19 A/C Thermistor
A 20 Accel Position Sensor
A 21 Air Inlet Control Servo Motor
A 22 Air Mix Control Servo Motor
A 23 Air Mix Control Servo Motor (Driver Side)
A 24 Air Mix Control Servo Motor (Front Passenger Side)
A 25 Air Vent Mode Control Servo Motor
A 26 Airbag Sensor Assembly
A 27 Airbag Sensor Assembly
A 28 Airbag Sensor Assembly
A 29 Airbag Squib (Front Passenger Airbag Assembly)
A 30 Airbag Squib (Steering Wheel Pad)
A 31 Antenna Amplifier B 4 Blower Motor
B 5 Blower Motor Controller
B 6 Blower Resistor
C 7 Cigarette Lighter
Cigarette Lighter Illumination
C 8 Circuit Opening Relay
C 9 Clutch Start SW
C 10 Combination Meter
C 11 Combination Meter
C 12 Combination SW
C 13 Combination SW
C 14 Combination SW
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50AVENSIS (EWD526E)
G ELECTRICAL WIRING ROUTING
Position of Parts in Body
[LHD : S/D]
F24
D13
D17
F21
D7
D9
D18
D20
H20
D12
A33
H19
I15C17F22I16D15C18
D8D11A32C15D10F25F23C16
A 32 ABS Speed Sensor Rear LH
A 33 ABS Speed Sensor Rear RH
C 15 Curtain Shield Airbag Sensor LH
C 16 Curtain Shield Airbag Sensor RH
C 17 Curtain Shield Airbag Squib LH
C 18 Curtain Shield Airbag Squib RH
D 7 Door Courtesy Light LH
D 8 Door Courtesy Light RH
D 9 Door Courtesy SW Front LH
D 10 Door Courtesy SW Front RH
D 11 Door Courtesy SW Rear LH
D 12 Door Courtesy SW Rear RH
D 13 Door Key Lock and Unlock SW (Driver
’s Side)
Door Lock Control Motor (Driver ’s Side)
Door Unlock Detection SW (Driver ’s Side)
D 15 Door Lock Control Motor (Front Passenger ’s Side)
D 17 Door Lock Control SW Power Window Master SW
D 18 Door Lock Motor Rear LH
D 20 Door Lock Motor Rear RH F 21 Front Door Speaker LH
F 22 Front Door Speaker RH
F 23 Fuel Lid Opener Motor
F 24 Fuel Lid Opener SW
F 25 Fuel Pump
Fuel Sender
H 19 Height Control Sensor (Rear)
H 20 High Mounted Stop Light
I 15 Inner Mirror
I 16 Interior Light
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