Toyota ST185 Series, CELICA 1990 All–Trac/4WD, AT180 Series, ST184 Series, CELICA 1990 (FWD) Repair Manual

FOREWORD

This wiring diagram has been prepared to provide information
on the electrical system of the 1990 TOYOTA CELICA
All–Trac/4WD.

Applicable models: ST185 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.

 1990 Celica Repair Manual
 1990 Celica All–Trac/4WD Repair

Manual Supplement

 1990 Celica New Car Features

RM149U
RM176U

NCF056U

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.

TOYOTA MOTOR CORPORATION

This vehicle has an SRS AIRBAG (referred to as the airbag in the remainder
of this manual).

When handling airbag components (removal, installation or inspection, etc.),
always follow the directions given in the repair manuals listed above to
prevent the occurrence of accidents and airbag malfunction.

NOTICE

2

INTRODUCTION

This manual consists of the following 12 sections:

No.

Section Description

1 INDEX Index of the contents of this manual.

2 INTRODUCTION Brief explanation of each section.

3

HOW TO USE
THIS MANUAL

Instructions on how to use this manual.

4

TROUBLE–
SHOOTING

Describes the basic inspection procedures for electrical circuits.

5 ABBREVIATIONS Defines the abbreviations used in this manual.

6

GLOSSARY OF
TERMS AND
SYMBOLS

Defines the symbols and functions of major parts.

7 RELAY LOCATIONS

Shows position of the Electronic Control Unit, Relays, Relay Block, etc.
This section is closely related to the system circuit.

8

ELECTRICAL
WIRE ROUTING

Describes position of Parts Connectors, Splice points, Ground points, etc.
This section is closely related to the system circuit.

9

POWER SOURCE
(Current Flow Chart)

Describes power distribution from the power supply to various electrical
loads.

10 INDEX Index of the system circuits.

11

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, “How to use this manual”).

The “System Outline” and “Service Hints” useful for troubleshooting are
also contained in this section.

GROUND POINTS Shows ground positions of all parts described in this manual.

12

OVERALL
WIRING DIAGRAM

Provides circuit diagrams showing the circuit connections.

3

HOW TO USE THIS MANUAL

This manual provides information on the electrical circuits installed on vehicles by
dividing them into each system circuit.

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
Points 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 Wire 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 O verall Wiring Diagram

at the end of this manual.

4

HOW TO USE THIS MANUAL

A
B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

5

: System Title
: 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.

: Indicates the connector to be connected to a part (the

numeral indicates the pin No.)
Explanation of pin use.

The pins shown are only for the highest grade, or only
include those in the specification.

: Connector Color

Connectors not indicated are milky white in color.

: ( ) is used to indicate different wiring and connector,

etc. when the vehicle model, engine type, or
specification is different.

: Indicates related system.
: Indicates the wiring harness and wiring harness

connector. The wiring harness with male terminal is
shown with arrows ( ).

Outside numerals are pin numbers.
 All connectors are shown from the open end, and

the lock is on top.

The first letter of the code for each wiring harness and
wiring harness connector(s) indicates the component’s
location, e. g . , “ E ” f o r t h e 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 c o m m on, followed by numbers (e.g., IH1, IH2),
this indicates the same type of wiring harness and
wiring harness connector.

: Represents a part (all parts are shown in sky blue). The

code is the same as the code used in parts location.

: 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 (different junction blocks are shaded differently for
further clarification).

3B indicates
that it is inside
Junction Block
No. 3.

Example:

: Indicates the wiring color.

Wire colors are indicated by an alphabetical code.
B = Black L = Blue R = Red
BR = Brown LG = Light Green V = Violet
G = Green O = Orange W = White
GR = Gray P = Pink Y = Yellow
The first letter indicates the basic wire color and the

second letter indicates the color of the stripe.
Example: L – Y

(Blue) (Yellow)

: Indicates a wiring Splice Point (Codes are “E” for the

Engine Room, “I” for the Instrument Panel, and “B” for
the Body).

Example:

The Location of Splice Point I 5 is indicated by the
shaded section.

: Page No.
: Indicates a sealed wiring harness.

: 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.

: 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

: When 2 parts both use one connector in common, the

parts connector name used in the wire routing section
is shown in square brackets [ ].

Q

R

S

T

U

V

W

X

6

HOW TO USE THIS MANUAL

WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 3 OF THE POWER WINDOW MASTER SW, TERMINAL 2 OF THE POWER WINDOW CONTROL RELAY
AND TERMINAL 8 OF THE POWER WINDOW SW THROUGH THE DOOR FUSE.

1. DRIVER’S WINDOW “MANUAL UP” OPERATION BY MASTER SW

HOLDING MANUAL SW (DRIVER’S) ON “UP” POSITION LOCATED IN POWER WINDOW MASTER SW, THE CURRENT FLOWS TO TERMINAL 5 OF THE POWER WINDOW
CONTROL RELAY THROUGH TERMINAL 3 OF THE MASTER SW  TERMINAL 2 TO OPERATE A POWER WINDOW CONTROL RELAY. THUS THE CURRENT INSIDE THE RELAY
FLOWS FROM TERMINAL 2 OF THE RELAY  TERMINAL 1  TERMINAL 2 OF THE POWER WINDOW MOTOR  TERMINAL 1  TERMINAL 4 OF THE RELAY  TERMINAL
3  TO GROUND. THE MOTOR TURNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR IS STOPPED AND THE WINDOWS CAN STOP AT WILL
POINT.

(FOR THE “MANUAL DOWN” OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOWS ARE CHANGED).

2. DRIVER’S WINDOW “AUTO DOWN” OPERATION BY MASTER SW

ONCE THE “AUTO DOWN” BUTTON OF THE MASTER SW IS PUSHED, THE CURRENT FLOWS TERMINAL 9 OF THE POWER WINDOW CONTROL RELA Y THROUGH TERMINAL
3 OF THE MASTER SW  TERMINALS 8 AND 9 TO OPERATE THE RELAY. THUS THE CURRENT INSIDE THE POWER WINDOW CONTROL RELAY FLOWS FROM TERMINAL
2 OF THE RELAY  TERMINAL 4  TERMINAL 1 OF THE POWER WINDOW MOTOR  TERMINAL 2  TERMINAL 1 OF THE RELAY  TERMINAL 3  TO GROUND.
THE MOTOR CONTINUES THE ROTATION ENABLING TO DESCENT THE WINDOW.

THE WINDOW DESCENDS TO THE END POSITION. THE CURRENT WILL BE CUT OFF TO RELEASE THE AUTO DOWN FUNCTION BASED ON THE INCREASING CURRENT
BETWEEN TERMINAL 2 OF THE RELAY AND TERMINAL 1 IN RELAY.

3. DRIVER’S WINDOW AUTO DOWN RELEASE OPERATION BY MASTER SW

HOLDING THE MANUAL SW (DRIVER’S) ON “UP” POSITION IN OPERATING AUTO DOWN. THE CURRENT FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 2
FLOWS TERMINAL 5 OF THE RELAY AND RELEASES THE AUTO DOWN FUNCTION IN THE POWER WINDOW CONTROL RELAY. RELEASING THE HAND FROM SW, WINDOW
STOPS AND CONTINUING ON TOUCHING SW, THE FUNCTION SWITCHES TO MANUAL UP OPERATION.

4. PASSENGER’S WINDOW UP OPERATION (MASTER SW) AND WINDOW LOCK SW OPERATION

HOLDING PASSENGER’S WINDOW SW (MASTER SW) ON “UP”, THE CURRENT FLOWS FROM TERMINAL 3 OF THE MASTER SW PASSING TERMINAL 6 TO TERMINAL 3 OF
THE POWER WINDOW SW (PASSENGER’S)  TERMINAL 4  TERMINAL 2 OF THE MOTOR  TERMINAL 1  TERMINAL 9 OF THE POWER WINDOW SW  TERMINAL
7  TERMINAL 1 OF THE MASTER SW  TERMINAL 4 TO GROUND. THE MOTOR RUNS TO ASCENT THE WINDOW. RELEASING THIS SW, THE ROTATION OF MOTOR IS
STOPPED AND WINDOW CAN STOP AT WILL PLACE.

SWITCHING THE WINDOW LOCK SW IN “LOCK” POSITION, THE CIRCUIT IS OPENED AND STOPPED THE MOTOR ROTATION.
(FOR THE DOWN OPERATION, CURRENT FLOWS IN THE REVERSE DIRECTION BECAUSE THE TERMINALS WHERE IT FLOWS ARE CHANGED).

P2 POWER WINDOW CONTROL RELAY

3–GROUND: ALWAYS CONTINUITY
2–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
5–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT UP POSITION
8–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT AUTO DOWN POSITION
9–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION AND MASTER SW AT DOWN OR AUTO DOWN POSITION

P 4 POWER WINDOW MASTER SW

4–GROUND: ALWAYS CONTINUITY
3–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION

WINDOW LOCK SW
OPEN WITH WINDOW LOCK SW AT LOCK POSITION

: PARTS LOCATION

CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE

P2 21 P4 21 P6 21
P3 21 P5 21 21

: RELAY BLOCKS

CODE SEE PAGE RELAY BLOCK (RELAY BLOCK LOCATION)

1 16 R/B NO. 1 (INSTRUMENT PANEL LEFT SIDE)

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

3B 14 J/B NO. 3 AND COWL WIRE (INSTRUMENT PANEL LEFT SIDE)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

ID1 26 FRONT DOOR RH WIRE AND COWL WIRE (RIGHT KICK PANEL)
IH1 26 FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)

: GROUND POINTS

CODE SEE PAGE GROUND POINT LOCATION

IC 24 COWL LEFT

: SPLICE POINTS

CODE SEE PAGE WIRE HARNESSES WITH SPLICE POINTS

I5 24 COWL WIRE

SYSTEM OUTLINE

SERVICE HINTS

Q

R

S

T

U

V

W

X

Junction connector (code: J1, J2, J3, J4, J5,
J6) 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.

HINT:

7

: Explains the system outline.

: Indicates values or explains the function for reference during troubleshooting.

: Indicates the reference page showing the position on the vehicle of the parts in the system circuit.

Example: Part “P4” (Power Window Master SW) is on page 21 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.

Part is 4th in order
Power Window Master SW

Example: P

4

: 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 16 of this manual and is installed on the left side of the

instrument panel.

: Indicates the reference page showing the position on the vehicle of J/B and Wire Harness in the system

circuit.
Example: Connector “3B” connects the Cowl Wire and J/B No. 3. It is described on page 14 of this

manual, and is installed on the instrument panel left side.

: 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 “ID1” connects the front door RH wire (female) and cowl wire (male). It is

described on page 26 of this manual, and is installed on the right side kick panel.

: Indicates the reference page showing the position of the ground points on the vehicle.

Example: Ground point “IC” is described on page 24 of this manual and is installed on the cowl left side.

: Indicates the reference page showing the position of the splice points on the vehicle.

Example: Splice point “I 5” is on the Cowl Wire Harness and is described on page 24 of this manual.

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, Fuse, etc.) and other parts.

The next page and following pages shown the parts to which each electrical source outputs current.

POWER SOURCE

8

HOW TO USE THIS MANUAL

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.

GROUND POINTS

9

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 ( , , and shown below) can also be
checked this way.

10

TROUBLESHOOTING

VOLTAGE CHECK

(a) Establish conditions in which voltage is present at the

check point.

Example:

– Ignition SW on
– Ignition SW and SW 1 on
– Ignition SW, SW 1 and Relay on (SW 2 off)

(b) Using a voltmeter, connect the negative lead to a good

ground 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

(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) Use a volt/ohmmeter with high impedance (10 kΩ/V

minimum) for troubleshooting of the electrical circuit.

11

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:

– Ignition SW on
– Ignition SW and SW 1 on
– 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:

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.)

DISCONNECTION OF MALE AND FEMALE
CONNECTORS

To pull apart the connectors, pull on the connector itself, not the
wire harness.

HINT: Check to see what kind of connector you are disconnecting
before pulling apart.

12

TROUBLESHOOTING

HOW TO REPLACEMENT FOR TERMINAL
(with Terminal Retainer Type)

1. DISCONNECT CONNECTOR

2. DISCONNECT TERMINAL FROM CONNECTOR
(a) “for A type”

Raise the terminal retainer up to the temporally 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.

“for B type”

Open the terminal retainer.

(b) Release the locking lug from terminal and pull the

terminal out from rear.

3. 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

temporally lock position.

(b) Push the terminal retainer in as the full lock position.

4. CONNECT CONNECTOR

13

ABBREVIATIONS

ABBREVIATIONS

The following abbreviations are used in this manual.
A/C = Air Conditioner

ABS = Anti–Lock Brake System
COMB. = Combination
ECU = Electronic Control Unit
EFI = Electronic Fuel Injection
EGR = Exhaust Gas Recirculation
EX. = Except
FL = Fusible Link
ISC = Idle Speed Control
J/B = Junction Block
LH = Left-Hand
M/T = Manual Transmission
R/B = Relay Block
RH = Right–Hand
SRS = Supplemental Restraint System
SW = Switch
TEMP. = Temperature
VSV = Vacuum Switching Valve
W/ = With
W/O = Without

METER, ANALOG

Current flow activates a magnetic
coil which causes a needle to
move, thereby providing a relative
display against a background
calibration.

LED (LIGHT EMITTING DIODE)

Upon current flow, these diodes
emit light without producing the
heat of a comparable light.

IGNITION COIL

Converts low–voltage DC current
into high–voltage ignition current
for firing the spark plugs.

1. SINGLE
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.

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.

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.

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.

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.

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

A heavy–gauge wire placed in
high amperage circuits which
burns through on overloads,
thereby protecting the circuit.

HORN

An electric device which sounds a
loud audible signal.

LIGHT

Current flow through a filament
causes the filament to heat up
and emit light.

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.

CIGARETTE LIGHTER

An electric resistance heating
element.

DISTRIBUTOR, IIA

Channels high–voltage current
from the ignition coil to the
individual spark plugs.

2. DOUBLE
FILAMENT

HEADLIGHTS

FUEL

M

14

GLOSSARY OF TERMS AND SYMBOLS

15

1. NORMALLY
OPEN

Opens and
closes circuits,
thereby
stopping (1) or
allowing (2)
current flow.

RESISTOR

An electrical component with a
fixed resistance, placed in a circuit
to reduce voltage to a specific
value.

RESISTOR, TAPPED

A resistor which supplies two or
more different non–adjustable
resistance values.

SENSOR (Thermistor)

A resistor which varies its
resistance with temperature.

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, 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 allow
various circuits. Particularly the
primary ignition circuit, to
become operational.

Wires are always
drawn as straight
lines on wiring
diagrams. Crossed
wired (1) without a
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.

RELAY, DOUBLE THROW

A relay which passes current
through one set of contacts or the
other.

SENSOR, ANALOG SPEED

Uses magnetic impulses to open
and close a switch to create a
signal for activation of other
components.

TRANSISTOR

A solidstate device typically used
as an electronic relay; stops or
passes current depending on the
applied voltage at “base.”

SWITCH, WIPER PARK

Automatically returns wipers to
the stop position when the wiper
switch is turned off.

SWITCH, MANUAL

SPEAKER

An electromechanical device
which creates sound waves from
current flow.

2. NORMALLY
CLOSED

RESISTOR, VARIABLE or
RHEOSTAT

A controllable resistor with a
variable rate of resistance.
Also called a potentiometer or
rheostat.

2. NORMALLY
OPEN

RELAY

1. NORMALLY
CLOSED

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.

(2) SPLICED

WIRES
(1) NOT

CONNECTED

[Body]

16

RELAY LOCATIONS

[Engine Compartment]

17

[Instrument Panel]

18

RELAY LOCATIONS

,,

,

,,,

: J/B No. 1 Left Kick Panel

(See Page 17)

19

[J/B No. 1 Inner Circuit]

20

RELAY LOCATIONS

,,

,

,,,

: J/B No. 2 Near the Battery

(See Page 16)

21

[J/B No. 2 Inner Circuit]

22

RELAY LOCATIONS

,,

,

,,,

: J/B No. 3 Behind Combination Meter

(See Page 17)

[J/B No. 3 Inner Circuit]

23

2

: R/B No. 2 Left Kick Panel

(See Page 17)

3

: R/B No. 3 Right Kick Panel

(See Page 17)

24

RELAY LOCATIONS

4

: R/B No. 4 Right Kick Panel

(See Page 17)

5

: R/B No. 5 Engine Compartment Front Right

(See Page 16)

25

ELECTRICAL WIRING ROUTING

Position of Parts in Engine Compartment

A 1 A/C Ambient Temp. Sensor F 1 Fog Light LH N 1 Noise Filter (for Ignition System)
A 2 A/C Condenser Fan Motor F 2 Fog Light RH
A 3 A/C Idle–Up VSV F 3 Front Airbag Sensor LH O 1 Oil Pressure SW
A 4 A/C Magnet Clutch and F 4 Front Airbag Sensor RH O 2 Oxygen Sensor

Compressor Sensor F 5 Front Side Marker Light LH
A 5 A/C Pressure SW F 6 Front Side Marker Light RH R 1 Radiator Fan Motor
A 6 A/C Water Temp. SW F 7 Front Turn Signal Light and R 2 Retract Motor LH
A 7 ABS Actuator Clearance Light LH R 3 Retract Motor RH
A 8 ABS Actuator F 8 Front Turn Signal Light and
A 9 ABS Check Connector Clearance Light RH S 1 Speed Sensor (for Cruise Control
A 10 ABS Check Connector F 9 Front Wiper Motor System)
A 11 ABS Relay F 10 Fuel Pump Resistor S 2 Start Injector Time SW
A 12 ABS Relay F 11 Fusible Link Box S 3 Starter
A 13 ABS Speed Sensor Front LH S 4 Starter
A 14 ABS Speed Sensor Front RH H 1 Headlight LH
A 15 Air Flow Meter H 2 Headlight RH T 1 Throttle Position Sensor
A 16 Alternator H 3 Horn T 2 Turbo Charging Pressure Sensor
A 17 Alternator H 4 Horn

V 1 VSV (for EGR System)
B 1 Back–Up Light SW I 1 ISC Valve V 2 VSV (for Turbo Charging
B 2 Brake Fluid Level SW I 2 Igniter Pressure)

I 3 Ignition Coil V 3 VSV (for T–VIS)
C 1 Check Connector I 4 Injector No. 1
C 2 Cold Start Injector I 5 Injector No. 2 W 1 Washer Motor
C 3 Cruise Control Actuator I 6 Injector No. 3 W 2 Water Temp. Sender

I 7 Injector No. 4 W 3 Water Temp. SW (for Fans
D 1 Distributor control)

K 1 Knock Sensor
E 1 EFI Resistor
E 2 EFI Water Temp. Sensor
E 3 EGR Gas Temp. Sensor

(for California)

26

ELECTRICAL WIRING ROUTING

Position of Parts in Instrument Panel

A 18 A/C Amplifier C 8 Clock J 1 Junction Connector
A 19 A/C Control Assembly C 9 Clutch Start SW J 2 Junction Connector
A 20 A/C Control Assembly C 10 Combination Meter J 3 Junction Connector
A 21 A/C Control Assembly C 11 Combination Meter J 4 Junction Connector
A 22 A/C Power Transistor C 12 Combination Meter J 5 Junction Connector
A 23 A/C Room Temp. Sensor C 13 Combination SW J 6 Junction Connector (for Earth)
A 24 A/C Solar Sensor C 14 Combination SW
A 25 A/C System Amplifier C 15 Cruise Control Clutch SW N 2 Noise Filter (for Defogger
A 26 A/C Thermistor C 16 Cruise Control ECU System)
A 27 A/C Water Temp. Sensor C 17 Cruise Control ECU
A 28 Airbag Squib P 1 Parking Brake SW
A 29 Air Mix Control Servo Motor D 2 Defogger SW
A 30 Air Vent Mode Control Servo D 3 Diode (for Cruise Control R 4 RECIRC/FRESH Control Servo

Motor System) Motor
A 31 Ashtray D 4 Diode (for Key Off) R 5 Radio and Player
A 32 Auto A/C Amplifier D 5 Door Lock ECU (w/ CD Player)
A 33 Auto A/C Amplifier R 6 Radio and Player (w/o CD Player)
A 34 Auto A/C Amplifier E 4 Engine ECU R 7 Radio and Player (w/o CD Player)
A 35 Auto Tilt Away Actuator E 5 Engine ECU R 8 Remote Control Mirror SW

A 36 Auto Tilt Away ECU E 6 Engine ECU R 9 Retract Control Relay

R 10 Retract Control Relay
B 3 Blower Control Relay F 12 Fog Light SW (for CANADA)
B 4 Blower Motor F 13 Front Speaker LH R 11 Rheostat
B 5 Blower Resistor F 14 Front Speaker RH

S 5 Stereo Component Amplifier

C

4 Center Airbag Sensor Assembly G 1 Glove Box Light (w/ CD Player)

C

5 Cigarette Lighter G 2 Glove Box Light SW S 6 Stereo Component Amplifier

C

6 Cigarette Lighter Illumination (w/ CD Player)

C

7 Circuit Opening Relay H 5 Hazard SW S 7 Stop Light and Cruise Control

Stop SW
I 8 Ignition Key Cylinder Light
I 9 Ignition SW and Unlock T 3 Turn Signal Flasher

Warning SW

27

Position of Parts in Body

A 37 ABS Deceleration Sensor I 10 Interior Light
A 38 ABS ECU
A 39 ABS ECU L 1 License Plate Light
A 40 ABS Speed Sensor Rear LH L 2 Luggage Compartment Light
A 41 ABS Speed Sensor Rear RH
A 42 Auto Antenna Control Relay and Motor P 2 Power Seat Motor (for Lumber Support)

P 3 Power Seat Motor (for Side Support)
B 6 Back Door Courtesy SW P 4 Power Seat SW
B 7 Buckle SW (w/ Power Seat) P 5 Power Window Master SW
B 8 Buckle SW (w/o Power Seat) P 6 Power Window Motor LH

P

7 Power Window Motor RH
D 6 Diode (for Interior Light System) P 8 Power Window SW RH
D 7 Door Courtesy Light LH
D 8 Door Courtesy Light RH R 12 Rear Combination Light LH
D 9 Door Courtesy SW LH R 13 Rear Combination Light RH
D 10 Door Courtesy SW RH R 14 Rear Speaker LH
D 11 Door Lock Control SW LH R 15 Rear Speaker LH
D 12 Door Lock Control SW RH R 16 Rear Speaker RH
D 13 Door Lock Motor LH and, Key Lock and R 17 Rear Speaker RH

Unlock SW LH R 18 Rear Tweeter (Speaker) LH

D 14 Door Lock Motor RH and, Key Lock and R 19 Rear Tweeter (Speaker) RH

Unlock SW RH R 20 Rear Window Defogger (+, w/o Diversity Antenna)
D 15 Door Speaker LH R 21 Rear Window Defogger (+, w/ Diversity Antenna)
D 16 Door Speaker RH R 22 Rear Window Defogger (–)

R 23 Rear Wiper Control Relay and Motor

F

15 Front Tweeter (Speaker) LH R 24 Remote Control Mirror LH

F

16 Front Tweeter (Speaker) RH R 25 Remote Control Mirror RH

F

17 Fuel Pump

F

18 Fuel Sender S 8 Sun Roof Control Relay

S 9 Sun Roof Control SW and Personal Light

H 6 High Mount Stop Light S 10 Sun Roof Limit SW

S 11 Sun Roof Motor

28

ELECTRICAL WIRING ROUTING

: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points

: Location of Splice Points

29

Connector Joining W ire Harness and Wire Harness

CODE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

EA1 COWL WIRE AND ENGINE ROOM MAIN WIRE (FRONT SIDE OF RIGHT FRONT FENDER)
EB1
EB2

ENGINE WIRE AND COWL WIRE (REAR SIDE OF RIGHT FRONT FENDER)

ES2 ENGINE WIRE AND ENGINE ROOM NO. 2 WIRE (NEAR THE DISTRIBUTOR)
ET1 ENGINE ROOM MAIN WIRE AND ENGINE WIRE (NEAR THE J/B NO. 2)

30

ELECTRICAL WIRING ROUTING

: Location of Connector Joining Wire Harness and Wire Harness

: Location of Ground Points