Page 1059 of 1164
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Reading Wiring Diagrams Z-Gl-3
Ground points
l This shows ground points of the harness.
CIGARETTE LIGHTER
INTERIOR LAMPS
H
I On vehicle
I Indication
I
To circuit The ground connection numbers in system circuit
diagrams correspond to those in the ground point
diagram.
Page 1060 of 1164
Z-Gl-4 Reading Wiring Diagrams
System circuit diagram/connector diagram
l These show the circuits for each system, from the power supply to the ground. The power supply side
is on the upper part of the page, the ground side on the lower part. The diagrams describe circuits with
the ignition switch off.
Below is an explanation of the various points in the diagram.
) Indicates operating conditions for switches.
The prefix letter indicates the system in which
:he connector is used.
JB: Joint box connections
X : Common connectors
A : Charging system/starting system
connectors
B : Engine control system connectors
C : Gauge control system connectors
D : Wiper system connectors
E : Lighting system connectors
F : Signal system connectors
G : Air-conditioning system connectors
H : Transmission control system
connectors
I : Interior lamp system connectors
J : Audio/radio connectors
K : Power window/power door lock system
connectors
L : Remote control mirror system
connectors
M : Sliding sunroof system connectors
N : Power steering/4-wheel steering
system connectors
0 : Anti-lock brake system connectors
P : Power seat/seat heater system
connectors
Cl : Auto cruise control system connectors
R : Auto adjusting suspension system
connectors
S : Passive shoulder belt control/air bag
system connectors
T : Others
Y : Ground connector
- .
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IGNITION SYSTEM l ENGINE CONTROL 9 harness ground is represented differently
:han a unit ground.
Types of grounds Symbol
Harness
I
-
-
-
-
‘“G:
si-
P
7:’
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-
-
-
f
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LL
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Page 1061 of 1164
Reading Wiring Diagrams Z-GI-5
System name
SYSTEM l FUEL INJECTION SYSTEM f
B-lc py,p -
Current flows in the direction of the arrow.
L
::::y...:::..: ::::;IF::::::I::::.:I:I~-. I :I::- .::
F
~~-;..~~~-~-~~~-~-~-~-~-~~~~~-:~-. t /
*Indicates shielded wire.
*Shielded wire:
Prevents signal disturbances due to
electrical interference.
Wire is covered by a metal meshing for
grounding.
*Two-color wires are indicated by a Two-letter
symbol. The first letter indicates the base color of
the wire and the second indicates the color of the
stripe.
For example
W/R is a white wire with a red strip
BR/Y is a brown wire with a yellow strip
Symbol
(Example) solid color wire
Striped wire
Red&ripe)
l
The harness symbol is given in the (
the wire color (Refer to GI-7.). ) following The number (e.g. 6), indicates the
circuit continues to the related system
diagram.
0 Male and female connectors are represented as follows in
the circuit and connector diagrams.
C3r3r;$,diagram
l Like connectors are linked by broken lines between the
connector symbols.
oconnector diagrams always show connectors on the
harness side. The arrow Indicates the view from the
harness side.
(Example)
View horn harness ride
@Colors for connectors other than those that are off white
are given in dia rams.
0 Unused termrn d s are
indicated by $ .
Page 1062 of 1164
z-GI-6 Reading Wiring Diagrams
Routing diagram
l This shows where electrical components are located on the system circuit diagram by lead and connector
symbols.
l Specified values are listed beside the routing diagram or on the following page.
Shows the system that uses the
connector.
Shows the names of components in routing diagrams.
(Example)
I Connector 1 Symbol 1
Joint box JB-04
Common connectors lXi?U
System connectors I-03 Shows the ground in system diagrams.
JOINT Shows values for determining
whether an electrkal component
is good.
Z-6
Page 1063 of 1164
Reading Wiring Diagrams Z-GI-7
HARNESS SYMBOLS
DESCRIPTION OF HARNESS
FRONT HARNESS
ENGINE HARNESS
INSTRUMENT PANEL HARNESS
REAR HARNESS
REAR NO.2 HARNE COLOR SYMBOL DESCRIPTION OF HARNESS SYMBOL
(F) INTERIOR LAMP HARNESS (IN)
(El FLOOR HARNESS
FW
(1) DOOR NO.1 HARNESS Ml)
DOOR NO.2 HARNESS
WW
EMISSION HARNESS AIR CONDITIONER HARNESS
INSTRUMENT PANEL HARNESS
FRONT HARNESS [a ,&<\I INJECTION HARNESS [INJ]
EMISSION’ HARNESS (EM)
I ENGINE HARNESS [E]
/
EMISSION HARNESS (EM)
INTERlOq IAMP HARNESS [IN]
- INTERlO? LAMP HARNESS [IN]
SUNRGOF GESS [SU]
REAR HklNESS [R]
323 HATCHBACK
IARNESS (R3)
FL00F4 HAdNEss(FR1 -,A HARNESS (Rl DOOR NO.3 HARNESS [DRS]
PROTE&
Page 1064 of 1164
Z-Gl-8 Reading Wiring Diagrams
Svmbols I
Symbol Meaning Symbol Meaning
Battery (I, Generates electricity through Resistance l A resistor with a constant value
chemical reaction l Mainly used to protect electrical
l Supplies direct current to circuits components in circuits by maintaining
rated voltage
l Reading resistance values
Ground (1)
l Connecting point to vehicle body or No.1 Cobr band
-A- other ground wire where current flows -No.2 Cobr band
from positive to negative terminal of -No.3 Cobr band
battery No.4 Cobr band
1
l Ground (1) indicates a ground point to Flnt color. Rerkrancs
body through wire harness
Ground (2) l Gound (2) indicates point where
component is grounded directly to body
Remark
oCurrent wilt not flow through a circuit if
ground is faulty
Fuse (1)
(box)
Fuse (2)
l Melts when current flow exceeds that
specified for circuit, stopping current
flow
Precautions
o Do not replace with fuses exceeding
specified capacity
.
(Cartridge)
vlain fuse/Fusible
Transistor (1)
l Electrical switching component
a Turns on when voltage is applied to Motor
0 Converts electrical energy into
mechanical energy
Transistor (2)
coiibmr (Cl
l Reading code l Pulls in and expels gases and liquids
Lamp
Number of terminals O:Low- frequency NPN
l Emits light and generates heat when
Cigarette lighter
current flows through filament a Electrical coil that generates heat
Page 1065 of 1164
Reading Wiring Diagrams Z-GI-9
Symbol ‘ Meaning Symbol Meaning
Horn l Generates sound when current flows. Switch (1) l Allows or breaks current flow by
opening and closing circuits.
Speaker
w
Heater l Generates heat when current flows. Normally open (NO)
Switch (2)
Normally closed (NC)
Harness l Unconnected intersecting harness.
Speed sensor l Movement of magnet in speedometer
set turns contact within sensor on and
Off. (Not connected)
l Connected intersecting harness.
Ignition switch @Turning ignition key operates switch
contacts to complete various circuits.
(Connected)
rlormally open (NO)
Relay (1) l Current flowing through coil produces electromagnetic force causing contact to open or close.
____- .~.~~
Open Closed
--.--.-m.---------,
Relay (2) Normally open relay (NO)
- Ri i No flow ’ ni 1 Closed
Normally closed relay (NC) Flow
ormally closed (NC)
Sensor (variable) l Resistor whose resistance changes Diode
l Known as a semiconductor rectifier.
--3p6G- with operation of other components. diode allows current flow in one
direction only
--T- IA
IY Calhode(K)+- Anode(A)
* Flow of electric current
K-1 KD, he>:
-
ensor (thermistor)
l Resistor whose resistance changes Light emitting diode 0 Diode that lights when current flows
with temperature.
(LED)
l Unlike ordinary light bulbs, diode does
not generate heat when lit
Capacitor
l Component that temporarily stores “2, Cathode(K) --&---Anode(A)
I7
Cathode(K)
electrical charge.
c Anode(A)
----il---- .
Flow of electric current
Solenoid
l Current flowing through co11 generates Reference(zener) l Allows current to flow In one dlrectlon
electromagnetic force to operate diode up to a certain voltage. allows current
plungers, etc. cd to flow In other dIrectron once that
J-
voltage IS exceeded.
z-9
Page 1066 of 1164
Z-GI-10 Reading Wiring Diagrams
Logic symbols
‘ypes of logic symbols Operation Expressing output Simple relay circuits
OR Input to A or 6 will Low electrical potential (L) at A and B --,
produce output at C No output (L) at C
High electrical potential (H) at A or B -+ A
A
ID- C Output (H) at C
EB Q-f2 c
B B
AND Input to A and B will High electrical potential (H) at A and B -+
produce output at C Output (H) at C
A _
A
El-- Low electrical potential (L) at A or B -+
B C
No output (L) at C
B
II!I3 Q-00-Q
C
INV No input to A will produce Low electrical potential (L) at A +
an output at B
Ungrounds (H) B
-b- Input to A will not produce High electrical potential (H) at A +
A B
any output at B Grounds (L) B A-
El
PROCESS Simplified representation of complex functions within circuit Describes (Examples)
main function
Breakerless transistor
---
-I- 1 1 Signal detector for emission control unit, cooling unit and
I igniters
- ~._..._...._._..._._..__,
--L--A tachometer
P.Signal converter for turn and hazard flasher unit,breakerless : siinalcon”elter :
i..-.--...-.........---i
transistor igniter unit, etc. --j CoIlsignal ConVerted e
--I. .‘p. Y?YT?!!9’. . _ i
Abbreviations used in this booklet
A
%J Ampere
Auto Stop
Air Supply Valve
A/C AAS
Air Conditioner Auto Adjusting Suspension
A/F Air Fuel ABS
AIR Anti-lock Brake System
Auto Reverse
A/T ACV
Automatic Transmission
ACC Air Control Vafve
Acc%K4tIory
ACCEL Accelerator
ADD AE
Additional Acoustic Equilibration
ALT Alternator
EP AIS
Amplitude Modulation Air Injection System
Amplifier ALL
ANT Antenna Automatic Load Levelino
ATP Atmospheric Pressure
ATX Automatic Tmnsaxle FR Fmnt Right ELI?
FIB Feedback
F/I Fuel Injector Emergency Locking Retractor
EN ELEC Electric
Frequency Modulation
Generator
HEI Electronic Tuner
Hiih Energy lgnitiin
HID K!
Heat/Defmster
HEAT Heater Exhaust
HI Hiih F
ISC Front
Idk Speed Contml
IG Ignition
ILLUMI Illumination FICB
INT Intermittent FL Fast Idle Cam Breaker
Fmnt Left
JB
LH Joint Box
Left Hand
:AC Battery
Bypass Air Control Valve
B/L Ei-Level
CPU Central Pmcessing Unit
CSD COM start Device
CARB Carburator
CCT Circuit
CIGAR Cigarette
COMBI Combination
CON Conditioner
CONT Control
DOHC Double Overhead Camshaft
DEF Defroster
ECPS Electronicalfy Controlfed Power
Steering
EGI Electronic Gasoline Injection
EGR Exhaust Gas Recirculation LCD Liquid Crystal Display
:i Low
Low Wave
/IL Motor
MaWunction Indicator Lamp
MTR Mechanical Tuning Radio
Mrr Manual Transmission
MID Mkfdk,
MIN Minute
MIX
MiXtUt MPX Mukiplex
MTX Manual Transaxte
K Middle Wave
Normalty Closed
too Normally Open
Over Drive
OFF Switch Off ON
FRCV
PTC
P/S
PRG
ass
ii:
RPM
EC
SOL
ST
Et TCV
TICS
TEMP
ES
V
VRIS
VENT
VOL
W Switch On
Power
Pressure Regulator Control
Solenoid Valve
Positiie Temperature
Coefficiint Heater
Power Steering
Purge Solenoid Vahe
Quick Start System
Rear
Riiht Hand
Rear Left
Revolution Per Minute
Rear Right
Recirculation
Solenoid
Start
Short Wave
Switch
~;eScml Turbocharger Solenoid
Triple Induction Control System
Temperature
Transistor
Total Wiring System
volt
Variable Resonance Induction
System
Ventilation
Volume
Wan
