1992 MAZDA 323 light

GI Reading Wiring Diagrams
System circuit diagram/connector diagram
l These diagrams 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.
I Indicates operating conditions for switches.
I
The prefix letter indicates the system in which the
:onnector 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
l-l : Transmission Control sysetm 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
Q : Auto cruise control system connectors
R : Auto adjusting suspension system
connectors
S : Passive shoulder belt control/Airbag system
connectors
T : Others
Y : Ground connector
4
IGNITION SYSTEM mENGINE CONTROL
A harness ground is represented differently than
a unit ground.
Types of grounds
Harness
Unit Symbol

GI Reading Wiring Diagrams
Symbols
Symbol Meaning Symbol Meaning
Battery
l Generates electricity through
Resistance 0 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 color band other ground wire where current flows No.2 color band
-A-
from positive to negative terminal of No.3 mbr band
battery. No.4 color band
1 l Ground (1) indicates a ground point to
body through wire harness.
Ground (2)
l Gound (2) indicates point where
component is grounded directly to
body.
Remarks
l Current will not flow through a circuit if
ground is faulty.
Fuse (1)
0 Melts when current flow exceeds that
specified for circuit, interrupts current
I__q/y)__ now.
Precautions
(box)
l Do not replace with fuses exceeding
Fuse (2) specified capacity.
(Cartridge)
Main fuse/Fusible
Transistor (1)
l Electrical switching component. l Turns on when voltage is applied to Motor
0 Converts electrical energy into
mechanical energy.
Transistor (2)
0 Reading code. a Pulls in and discharges gases and
liquids.
Number of temtinak
Lamp l Emits light and generates heat when Current flows through filament. Cigarette lighter l Electrical coil that generates heat.

-
Reading Wiring Diagrams GI
Symbol
Horn Meaning l Generates sound when current flows. Symbol Switch (1) Meaning l Allows or breaks current flow by
opening and closing circuits.
Speaker
ccl
Heater l Generates heat when current flows. Normally open (NO)
Switch (2)
I
Normally closed (NC)
Harness l Unconnected intersecting harness.
Speed sensor
+ Movement of magnet in speedometer
turns contact within sensor on and off. (Not connected)
w Connected intersecting harness.
Ignition switch
l Turning ignition key switches circuit to
operate various component.
(Connected)
Relay (1)
l Current flowing through coil produces electromagnetic force causing contact to open or close.
No current to coil Current to coil
Uormally open (NO)
Relay (2) Normally open relay (NO)
lormally closed (NC) [/I jr No flow @jj 1 Flow
Normally closed relay (NC)
Sensor (variable) a Resistance changes with other Diode l Known as a semiconductor rectifier,
components operation. the diode allows current flow in one
IA direction only.
R
CaIhode(K)--++- Anode(A)
- Flow 01 electric C”llO”,
KIIZT)-A K-A K-A
#ensor (thermistor) 0 Resistance changes with temperature. Light-emitting diode l A diode that lights when current flows.
V-ED) l Unlike ordinary bulbs, the diode does
not generate heat when it.
%u
I-
- Cathode(K) -$----- Anode(A)
Capacitor
l Component that temporarily stores
electrical charge.
----it----
Flow of current
Solenoid
l Current flowing through coil generates Reference diode l AIIOWS current to flow in one direction
electromagnetic force to operate (Zener diode) up to a certain voltage; allows current
to flow in the other direction once that
ti
n voltage is exceeded.
9

Gl Troubleshooting
Handling connectors
Caution
l Be sure to grasp the connectors, not the wires, when disconnecting them.

Improperly engaged
connectors will cause
poor terminal contact. A loose terminal Will
cause poor terminal 1 Baise the rear
2.Lift the tab with a
thin piece of metal
and remove the
Lift the tab with a thin
piece of metal and
there is no looseness in connector when engaged.
the female terminal.
1 .Raise the cover.
P.Lift the terminal to
B-Make sure the
terminal is securely
mounted in the
connector when
Pull lightly on individual
wires to check that they
are secured in the 1 Raise the cover.
2.Remove A.
3.Lift the tab with a
thin piece of metal
and remove the

Troubleshooting
Using electrical measuring equipment
Equipment USe
Test lamp Test to find open or shorted
H circ”its. operation Handling precautions 0 Connect the test lamp l Test lamps use 12V 1.4W
between the circuit being
or 3.4W bulbs or light-emitting
measured and a ground.
diodes (LEDs). Using .a large-
l The lamp will light if the circuit
capacity bulb may damage the
is energized to the point
CPU.
tested.
I? ‘s
n
Jumper wire
Used to create a temporary 0 Connect the jumper wire
l Do not connect the jumper
circuit. between the terminals of a wire from the power source
circuit to bypass a switch. line to a ground; this may
4 cause burning or other
b damage to harnesses or
electronic components.
M
Voltmeter
Used for measuring the voltage
l Connect the voltmeter in
of a circuit to find possible opens *Connect the positive (+) probe
parallel with the circuit.
or shorts.
to the Point where Voltage is to 0 Set the range to the desired
be measured and the negative
voltage.
(-) probe to a ground.
*Use the service hole when
measuring the voltage at the
diagnosis connector.
‘$$
‘, i_ I/
*Tie a thin wire to the positive
(+) probe to access narrow
terminals.
Ohmmeter
l Zero the ohmmeter.
Used to find opens and shorts in *Zero the meter after switching
the circuit, to confirm continuity l-.&j
to the measuring range.
and to measure resistance. -*-.
0 Before using the ohmmeter,
l Verify that voltage is not make sure the ignition switch
applied to the circuit. is off or the negative (-)
l Connect the probes between battery cable is disconnected
two points in a circuit. _ to prevent burning or
otherwise damaging the
ohmmeter.
Ammeter
l Connect the ammeter in series l Set the range to the desired
Used to check alternator output,
with the circuit by touching the amperage.
current supplied to the starter,
and dark current within a circuit. positive (+) probe to the l Connect the ammeter in series
power-side terminal and the with the circuit. The ammeter
Note
Dark current is the constant flow negative (-) probe to the
ground-side terminal. may be burned or otherwise
damaged if it is connected in
parallel.
of current while the ignition
switch is OFF.
13

d-II __ EXCEPT F.R.GERMANY -CURRENT FROM BATTERY
-----CURRENT FROM IGl. IG2
-I 1--~-l-l-a-r-~ A, ,.,TiTl-TLITr r-.-a ar.1. ?I,-% ----CIJARENT FROM ACC
“-‘e 30A
I -mILLUMINATION LAMPS I-4
HiZP
r--- “f E-l
MAIN 00A FUSE l5A
q
-GA- I’LIE iHTS
---mm_
n POSITION LIGHTS E-l
TAIL 15A
-W/B
I
+-.
i-. I
i REAR WIPER
15A
-0J‘o ---- L/G _--- ;-.-&+v ---.
WIPER 20A .---$- ---. l REAR WIPER E WASHER o-2
m--c____ L _____ ;--:-; ____. l ;:E;H;E:;SHm
O-l
HEATER 30A
-- _-__ ,,,-j __-__; --me., HEATER
G
t
METER 15A : - - l COURTESY LAMPS I-3
-------B/y ---- + I
ZiUNROOF 15A : --•INTERIOR 6 SPOT LAMPS I-2
t
-oJy)--
G/O---:--- -t----.mSLIOING SUNROOF M
~~~~ .--- __ ___ n SOUN0 WARNING SYSTEM I-2
48s VALV
30A I
i
AES 60A +--t-
I mSTOF’LIGHTS F-3
ABS iOA
--- ’ ‘I ---
GNITION ! ;
iWITCH 1 I
TRUNK COMPARTMENT
‘LAMP I-3
‘mPOWER DOOR LOCK A
K-2
FUSE 30A
y-------t- --~--G/!---j--& .--- - l HEADLIGHT CLEANER O-l
I
’ . ---B/R---+-* ----
K-l
I PowE~~om!,IJ,+~~ -..---- -...;PO,.,ER WI,.,,,OWS
! I ENGINE 15A
’ I (’ I :
:.
.--
1 ----L ---- l -* ---- OJY) ---- FJ,w----l-q -..--
FUEL INJ ’ .-------------------:-L.---
’ I UENGINE CONTROL SYSTEM B-l
FUSE 20A
l REAR WINOOW DEFROSTER I-l
-- mCIGARETTE LIGHTER I-l
mAUOI0 SYSTEM J
aSTARTING SYSTEM A-l

,c -
-
3
F.R.GERMANY F.R.GERMANY -CURRENT FROM BATTERY -CURRENT FROM BATTERY
-----CURRENT FROM IGl. 1G2 -----CURRENT FROM IGl. 1G2
l
ELECTRICAL WIRING SCHEMATIC =&$&jT FRoM ACC l ELECTRICAL WIRING SCHEMATIC =&$&jT FRoM ACC w-2 w-2
I I l ILLUMINATION LAMPS l ILLUMINATION LAMPS
MAIN BOA MAIN BOA , ,
485 VALVI
30A
HAZARO
30A ET’&” REAA FOG
i il E-5
t ‘=POSITION LIGHTS E-4
0
n LICENSE PLATE LIGHTS E-4
i ’ l TAILLIGHTS E-4
!rJJ:GHT LEVELING
.
i il E-2 REAR WIPER
15A a....*.
--- ~--
4
~FIEAR WIPER 6 WASHER i il o-2 I ----- - ---_ L/G _--...----A-___ 7
I WIPER 20A
,---.... - ----_ L ----
I
HEATER 30A
+-----w-.-L/W-+ -----; --__. l ,,,ZATER
G
I I
I
I METER 15A
I - l COURTESY LAMPS I-3
,--+ ---- (xro ---- FJ,y ----, I
I : I -mINTERIOR 6 SPOT LAMPS
I I SUNROOF 15A I I-2
b----------G/o ---- [ ---..- ~----,mSLIOING
I I SUNROOF
I
i i
I I SEAT WARMER
I
I I +g&)
ETN 30A t : ROOM 1OA
; ; i I ,
I : &---------,WBUCK-UP LIGHTS F-4
I
HORN iOA
STOP :
l- : !
.^. t , B/R l HORNS F-4
I , ABS iOA
- ~-
ABS 60A
9--t-“---
1 t
I :
t
I 1
FLASHER LIGHTS STOPLIGHTS
CHARGING SYSTEM
TRUNK COMPARTMENT
POWER DOOR LOCK K-2
INSTRUMENT CLUSTER
6 WARNING LAMPS C
?:m-“_“_“.B/W ---- +.+,v.-{~POWE~ ,.,INOOWS
K-l
l i .-m-e_ cx/v _____ G _-__ +.:m.
I , i il I-l
L_-----_-, l COOLING FAN SYSTEM B-2
B/L---------------------
R l STARTING SYSTEM A-l
21

SYSTEM CIRCUIT DIAGRAM/
CONNECTOR LOCATIONS
ENGINE-RELATED SYSTEMS EXTEFlIOFl LIGHTING SYSTEMS STARTING SYSTEM...............24 HEADLIGHTS
CHARGING SYSTEM...............26 EXCEPT F.R.GERMANY...........44
ENGINE CONTROL SYSTEM.........28 F.R.GERMANY..................46
COOLING FAN SYSTEM............36 HEADLIGHT LEVELING SYSTEM.....46
TAILLIGHTS
CHASSIS-RELATED SYSTEMS EXCEPT F.R.GERMANY...........48
ANTI-LOCK BRAKE SYSTEM........82 F.R.GERMANY.a................50
LICENSE PLATE LIGHTS
INSTFUMENT CLUSTEA-FiELATED SYSTEMS EXCEPT F.R.GERMANY...........48
INSTRUMENT CLUSTER 6 WARNING
I LAMPS........................38
BOOY-ELATED SYSTEMS WINDSHIELD WIPER 6 WASHER.....40
HEADLIGHT CLEANER.............40
REAR WIPER 6; WASHER...........42
HORNS.........................6 0
REAR WINDOW DEFROSTER.........6 4
SOUND WARNING SYSTEM..........6 6
POWER WINDOWS.................7 4
POWER DOOR LOCK...............7 6
POWER OUTSIDE MIRRORS.........7 8
SLIDING SUNROOF...............8 0
SEAT WARMERS..................8 4 F.R.GERMANY..............u.i5 ii
POSITION LIGHTS
EXCEPT F.R.GERMANY...........4 4
F.R.GERMANY..................5 0
FRONT 6 REAR FOG LIGHTS.......5 2
T;l%&HAZARD FLASHER
sTopLIGHi ..... ...............
.54
F.R.GERMANY..................5 6
EXCEPT F.R.GERMANY...........5 8
BACK-UP LIGHTS................6 0
INTERIDFI LIGHTING SYSTEMS IG KEY CYLINDER LAMP..........6 6
INTERIOR 6; SPOT LAMPS.........6 6
COURTESY LAMPS................6 8
TRUNK COMPARTMENT LAMP........6 8
ILLUMINATION LAMPS............7 0
A;~ATOEOS;DITIONING~LATED SYSTE
........................
ACCESSORIES
CIGARETTE LIGHTER.............64
DIGITAL CLOCK.................6 4
AUDIO SYSTEM..................7 2
OTHER
DIAGNOSIS CONNECTOR...........86