1992 MAZDA 323 ignition

F3 CONTROL SYSTEM
Vs: Battery voltage
‘erminat Input Output Connected to Test condition
Correct voltage Remark
2A’ - - Ground (i nlector) Constant CIV -
26 - - Ground (output) Constant ov -
2C - - Ground (CPU) Constant ov -
2D - - Ground (input) Constant ov -
2E 0 Distributor Ignition switch ON QV or 5v
{NE-slgnal) -
f
r ldte
Approx. 2V
2F - - - -
- -
2G 0 Dstributor Ignition switch ON
ov or 5v
(G signal)
ldte Approx. 1.5V
a-l -I- - -
- -
21 - - - - - -
23 0 Knock control unit Idle Approx. 4.W -
I
2K 0 Throttle sensor/ Constant 4.5--5SV
Airflow meter
-
2L cl
2M 0 Speedometor
sensor
Throttle sensor Ignition switch UN
Accelerator pedal released
Accelerator pedal fully depressed 0 or 5V
Approx. 0.W
Approx. 4.W
-
2N 0
20 0
2P 0
2Q 0
2R Oxygen sensor Ignition switch ON ov
Idle (cold engine) ov
Idle (after warm-up) o- 1 .ov -
Increasing engine speed (after warm-up) 0.5-l .ov
Deceleration o--0.w
Airflow meter ignition switch ON Approx. 3.W
-
Idle Approx. 3.OV
Intake air Ambient air temperature 2O*C (68*F) Approx. 2.5V In arrflow meter
thermosensor
Water Engine’cooiant temperature 20°C (68OF) Approx. 2.W
thermosensor -
After warm-up Below 0.5V
0 Turbocharge Ignition switch ON VS
indicator -
7
r u-l 7 c Ul I-'
2y ?A’ 2u 25 20 20 2M 2K 21 ?G 2E 2C 2A 1u 1s 10 10 1M ?K 11 1G 1E 1C 1A
22 2x zv 2T 2R 2P 2N 2L 2J 2H 2F 20 28 1V 1T tR tP 1N IL 1.1 1~ qF 10 1~
F3-50
L --
4b&e (
--
Alway:
-a
--
Always
--
--
--
Always
--
Always
--
Below L
-I
--
Always
--
Alway:,
Alway:;
Alway:;
--
Alway:;
--
Always
--
Always
--
Always
Always

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

F3 CONTROL SYSTEM
Terminal Input Dutpui
2s - 0
2T 0
2U 0
2v 0
2w 0
2x 0
2Y 0
22 0 t
I, Ve: Battery voltage I I I Connected to Test condition
Correct voltage Remark
Overboost warning lgnitron switch ON
VB
-
buzzer
Solenoid valve
(PRC low temp.) 180 sec. after engrne started with coolant Below 1.W No-load engine
temperature is above 9O*C { 194*F ] and condition
intake air temperature IS between 40°C
1104*FJ and 50°C {122OF
f Other condition at idle
I VS
tnjector {Nos. 1, 3) Ignition switch ON VS
Idle V0’
I Engine speed above 2,000 rpm during
I Ve
deceleration (after warm-up)
Injector (Nos 2, 4) Ignition switch
ON VS
Idle VS’ * Engine Signal
Monrtor: Green
and red lamps
flash
ISC valve Engine speed above 2,000 rpm during VS
deceleration (after warm-up)
Ignition switch ON Approx. 7V
-
Idle 1 Approx. 9V
Solenoid valve
(purge control) Ignition switch ON
Idle V0
-
VB
Ci rcuit-opening
relay ignition switch ON
tdle 1 VB
I 8elow l.OV -
Solenotd valve
(PRC high temp.) 210 sec. after engine started wrth coolant Below 1.5V
temperature above 90°C ]194*F] and
Intake atr temperature above 50°C
f t22*F1 No-load engine
cond$on
1 Other condition at idle
I VB
I -
7 I PI
I l-1 t
r
2'f 2W 2U 25 iQ 20 &A 2K 21 2G 2E 2C 2A 1U 1s 10 10 1M 1K 11 tG If 1C 1A
F3-52 --
A/w&
--
Alway
--
Alway
--
Alway
--
Alwaj
--
Alwa f
--
Alwas]
--
Alwa I’

CONVENTlONAL BRAKE SYSTEM P
13EOPX-309
f3EOPX-310
13EOPX-311
Rear Brakes
1. Fill the fluid reservoir to the MAX mark with the specified
brake fluid.
2. With the ignition switch ON, fully depress the brake pedal
several times.
3. When the hydraulic-unit pump stops add the specified brake
fluid to the reservoir MAX mark if necessary,
If the hydraulic-unit pump coniinJes tti run for more than
one minute, do the following:
(1) Jack up the vehicle and support it on safety stands.
(2) Remove the bleeder cap and attach a vinyl hose to the
bleeder screw.
(3) Insert the other end of the vinyl hose into a clear con-
tainer.
(4) Loosen the bleeder screw by using the SST.
(5) With the ignition switch ON, fully depress the brake pedal
several times.
(6) Tighten the bleeder screw and continue with Step 2 of
the main procedure.
Cautfon
l Do not run the hydraulic-unit pump for more than
two minutes.
l The brake fluid reservoir must be kept 3/4 fult dur-
ing air bleeding.
l 8e careful not tb spill brake fluid onto a painted
surface.
l Use only the specified brake fluid. Do not mix differ-
ent brands of fluid.
4. Jack up the vehicle and support it on safety stands.
5. Remove the bleeder cap and -attach a vinyl hose to the
bleeder screw I
6, Place the other end of the vinyl hose into a clear fluid-filled
container.
7. With the ignition switch ON, have an assistant depress the
brake pedal serveral times, and then hold the pedal down.
Caution .
l The two people should sta)i within voice contact of u
each other.
l Be sure the pedal remains depressed until the bleed-
er screw is tightened.
l Release the brake pedal intermittently to stdp the
pump motor.
l Care must be used when opening the rear caliper
bleeder screw, because of the.high pressure buift
up from a fully-charged accumulator..
9. Use the SST to loosen the bleedes screw to let fluid and
air e-ape. Retighten the bleeder screw by using the SST.
9. Repeat Steps 7 and 8 until no ai! bubbles are seen.
IO. Check for correct brake operation. .
11 l Verify thai there is no fluid feakage. Clean aw& any spilled
flu@ with rags.’ .
f 2. After bleeding the air from the brqke system, add brake fluid _
to the reservoir MAX mark. . -
13EOPX-3 12
,: .
P-7

TO TECHNICAL DATA
FUEL AND EMISSION CONTROL SYSTEMS
Item.
Idle speed
tgf-don trrmng-
Fuel pump
MaxImum output pressure
Transfer pump
Maximum output pressure
Fuel filter Engine
rPm
BTDC
kPa [ kgf/cm2, psi 1 1
kPa { kgflcm2, PSI ) 1 BP OUHC turbo
800 f 50
10 l 10
490-736 (5.0-7.5, 71-1 IO]
39 10.4, 5.7 ) or higher
I Type
Low-pressure side Nylon element (in fuel pump)
Hiah-Dressure side PaDer element
Pressure regulator
Regulating low kPa ( kgflcm2, psr 1 265-314 (2.7-3.2, 38-46 1
pressure High kPa { kgflcm2, psr 1 304-392 (3.1-4.0, 44-57 1
lniector
_ Type Low-ohmic
Type of drive
Electromechanical
Resistance q
Approx. 2.11 Q (at 20% ( 68*f )]
lniector reslstor
L - Resistance/injector
Idle-speed control (tSC) valve
TvDe n 1 6 [at 20°C 168OFjj
I Rotarv
Resistance
Solenoid valve (purge control)
Resbstance
Solenoid valve {wastegate)
Resistance n(
R I
i-l I 1 t-13 [at ZO*C {68OF j]
23-27 tat 20°C l68OFll
. r.
33-39 lat 20°C I68OF 11
Solenoid valve (PRC)
Resistance Low temp. q
33-39 [at 2O*C {SS*F]]
High temp. 0 1 33-39 [at 20°C (68OF]]
Water thermosensor
-20°C ( -4OFJ 1 14.6-17.8
Resistance kQ 2o”c I 68OF) 2.21-2.69
40°C ( tO4OF) 1.0-l 3
80°C I176OFJ 0.29-0.35
Airflow meter
Resistance R E244Vs
E2*Vc Fuity closed
Fully open I 20-600
20- 1,000
200-400
EP++THAA
(intake air
thermosensor) -2O*C ( -4OFj 1 13,600-l 8,400
20% 1 68OF) 1 2,210-2,690
6O*C 114OOFl i 493-667
EI ~Fc
I Fully closed 00
0 1
Oxygen sensor (ceramic beater coil)
Resistance
Fuel tank Approx. 6 [at 20°C f68OF)]
I CaDacW L I US oal. ImD aal I I 60 I 15.9, 13.2 I
I
Air cleaner
Element type
Fuel
Specrficatioir Oil permeated
Unteaded premium (RON 95 or higher)
l TEN terminal of diagnosis connector grounded. .
-
ENGINE ELI
3attery
I
Dark current’
Alternator
Starter
Distributor qr
Ignition timin?
ffEN terminal
Ignition coil
Spark plug
l ’ Dark current
r2 Standard pl

TECHNICAL DATA TD
ENGINE ELECTRICAL SYSTEM
l ’ Dark current is the constant flow of current while the ignition switch is OFF. (i.e., engrne control unit, EC-AT control unit, audio, etc.)
l z Standard plug tteq Engine
BP OOHC turbo
Battery Voltage v 12
Type and capacity (2U-hour rate) 55D23t (60Ah)
Dark current
l r mA Max. 20.0
_ Type AC.
Output V-A 12-70
Regulator type Transistorized (bitt-in IC regulator)
Regutated voltage v 14.1--t4.7
Alternator
’ Standard
Brush length mm 1 in] r 21.5 { 0.846 ]
Minimum 8.0 (0.32 )
Drive belt deflection New 5.5-7.0 10.22-0.27 ]
98 N (10 kgf, 22 IM] Used 6-O-7.5 (0.24-0.29 1
mm Iin)
Limit 8.0 IO.31 1
, Type Direct
Starter Output v-kW
Standard
Brush length mm {in] Minimum
Distributor spark advance
Ignition timing BTDC
(TEN terminal of diagnosis connector grounded)
Primary coit
Ignition coil Resistance winding
(at 20°C 168OF)) Secondary coil
winding
NGK
TYW
Spark plug NIPPONDENSO
, ml WP mm (in)
Firing order 12-0.85
17 (0.671
11.5 IO.481
Etectronic spark advance (ESA)
10 f 10
0.81~-0.99Q
IO-16 kfI
BKRGEVXI I**/ BKRSEVXI 1
BKR7EVX-f f
K20PR-TPl l”‘/ KlGPR-TPI 1
K22PR-TP 11
1.0-l .f { 0.039-0.043)
l-3-4-2

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

-
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