1992 MAZDA 323 wiring

CONTROL SYSTEM F3
VS: Battery voltage
Incorrect voltage Possible cause
Ab&e OV
l Poor contact at ground terminal l Open circuit in wiring from ECU to ground
Always approx. OV or approx. 2V
l Refer to Code No. 02 Troubleshooting
(Refer to 323 Workshop Manual (l203-lo-89F))
Always approx. OV or approx. 1.5V
l Refer to Code No, 03 Troubleshooting
(Refer to 323 Workshop Manual (1203-lo-89F))
Always OV
Always OV
- -
l Refer to Code No. 05 Troubleshooting
(Refer to 323 4-Wheel drive Workshop Manual (1229-10-891))
l Short circuit in wiring from ECU terminal 2K to throttle sensor, or airflow
meter
l Poor connection at ECU connector l ECU matfunctlon
Below 4.5V or above 5.5V
-
l ECU matfunction
l Refer to section 1
Always OV
l Throttle sensor malfunction l Short circuit in wlnng from ECU termrnal 2M to throttle sensot l Poor connection at ECU connector
. ECU malfunction
Always approx. 5V . Throttle sensor misadjustment
l Open circuit in wiring from ECU terminal 2D to throttle sensor
Always constant
l Open circuit in wiring from ECU terminal 2M to throttle sensor
. Open circurt in wiring from ECU terminal 2K to throttle sensor
l Open circuit in wiring from ECU terminal 2D to throttle sensor
Always above 1V 1 . Throttle sensor mtsadjustment
Always OV (after warm-up)
Always approx. IV (after warm-up)
l Refer to Code No. 15 Troubleshooting
(Refer to 323 Workshop Manual (1203-I O-89F))
l Refer to Code No.17 Troubleshooting
(Refer to 323 Workshop Manual (1203-lo-89F))
Always OV or approx. 5V
l Refer to Code No. 08 Troubleshooting
(Refer to 323 Workshop Manual (t203-lo-89F))
Always OV or approx. 5V
Always OV or approx. 5V
l Refer to Code No. 10 Troubleshooting
(Refer to 323 Workshop Manual (l203-lo-89F))
l Refer to Code No. 09 Troubleshooting
(Refer to 323 Workshop Manual (1203-10.89F))
Always OV
I
l Indicator broken l Open or short circuit In wiring from ECU 2R to ignition switch
13EOF3-36;
F3

VB: Battery voltage
Incorrect voltage Possible cause
Always OV
l Open or short &curt in wirtng from ECU terminal 25 to buzzer
Always OV or VB
l Refer to Code No.25 Troubleshooting (Refer to page F3-18)
-
Always OV l Main relay (FUEL INJ relay) malfunction l Open or short crrcult rn wlnng from Injector to ECU termtnal 2U or 2V
Always Va
l ECU matfunctlon
Always OV or VB
Always OV or VB
Always OV
Atways OV or VB
l Refer to Code No.34 Troubleshooting
(Refer to 323 Workshop Manual (1203-t O-89F))
l Refer to Code No.26 Troubleshooting
(Refer to 323 Workshop Manual (1203-lO-89F))
l Open or short circuit in wiring from ECU terminal 2Y to relay
l Refer to Code No. 35 Troubleshooting (Refer to page F3-18)
F3-53

Mazda
323
4WD
Wiring Diagram
Europe (LHD)
FOREWORD
This wiring diagram incorporates the wiring schematics
of the basic vehicle and available optional equipment.
Actual vehicle wiring may vary slightly depending on
optional equipment or local specifications, or both.
All information in this booklet is based on information
available at the time of printing. Mazda Motor Corpora-
tion reserves the right to make changes without pre-
vious notice.
CONTENTS
Mazda Motor Corporation
HIROSHIMA, JAPAN APPLICATION:
This manual is applicable to vehicles beginning with
the Vehicle Identification Numbers(VlN) shown on
the following page.
8 1992 Mazda Motor Corporation
PRINTED IN JAPAN, JAN. ‘92 R
5232-lo-92A

VEHICLE IDENTIFICATION NUMBERS (VIN)
(CHASSIS NUMBER)
JMZ 86835200 5OOOOl-
WIRING COLOR CODE
Color Code
I Color Code
Blue I L 1 Natural
I N
Black
1 B I Orange
I 0
Brown BR
Dark Blue DL
Dark Green DG Pink
Red
Purple
Green
Gray
Light Blue
Light Green G
GY
LB Tan
White
Yellow
Violet P
R
PU
T
W
Y
LG
I V

GENERAL INFORMATION
Wiring Diagrams
Contents of wiring diagrams . . . . . . . . . . . . . . ..*................
Using wiring diagrams . . . . . . . . . . . . . . . . . . . . . . ..*............. ............
2
............
2
Reading Wiring Diagrams
Ground points ...........................................................
3
System circuit diagram/connector diagram ..................................
4
Routing diagram ......................................................... fj
“arnesssym~,s.. ...................................................... 7
Symbols .............................................................. ..~
Logic symbols ...........................................................
10
Abbreviations used in this booklet ..........................................
10
Troubleshooting
Precautions to take when servicing an electrical system * - * * * * - * * * * * * - - * * * * * * - * 11
Handling connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
Using electrical measuring equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
Measuring voltage . ..~...................................................
14
Measuring continuity/resistance. a e e a a v e s s * e e . e e e a 1 e e . s * e e o s w e e a e e . e * w s a e e a * 1 fj
Findingshortcircuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..I......... 16

GI Wiring Diagrams
Contents of wiring diagrams
l This document comprises the 8 groups shown below. The main components are summarized in the
components location diagram at the
end of the document.
I I Gi General information A how-to on using and reading wiring diagrams, 1
using test equipment, checking harnesses and
connectors, and findrng trouble spots
Y , Ground points
- Ground routes from and to the battery
W Electrical wiring Shows main fuses and other fuses for each
schematics system
A-U Circuit diagrams for
~ individual systems Shows circuit and connector diagrams and
component and connector location diagrams
X Common connectors Shows connectors common throughout system
~ JB i Joint box complete
wiring system
I Shows internal circuits and connectors
PL Parts location
Pi index Shows location of major electrical parts
Gives page number of circuit diagram for each
component
Using wiring diagrams
l The use of the wiring diagram depends on its application. Application
-or checking
:ircuits of
ndividual
systems
For checking
ground circuit
of individual
systems Use
II Application For checking
fuse
connections
Open to page with circuit diagram and
harness routing to be used and fold out
common connector diagram or joint box
diagram.
II
For finding
page numbers
of systems and
components
Open to page with ground point diagram
and fold out common connector diagram
or joint box diagram. Use
3pen to electrical wiring schematic.
Parts Index System Index
or
Open to parts index or system index.

Reading Wiring Diagrams
Ground points
l This shows ground points of the harness.
#CIGARETTE LIGHTER
BINTERIOR LAMPS
H
3

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