MAZDA 323 1992 Workshop Manual Suplement

3-lb l ENGINE CONTROL SYSTEM (z/3)
KNOCK CONTROL UNIT
INJECTOR RESISTOR
DISTRIBUTOR
~I-01 ENGINE CONTROL UNIT (EM)
El-09 DISTRIBUTOR IEM) B l-l 1 ISC VALVE (EM)
2Y 2w 2u 2s 20 20 2M 2K 21 26 2E 2C 2A
R/B O/L G/B G f -G/Y L G/W * R/Y L/W R -G/h-G/R * Y/L Q/B 3/LGB/O
G W/L Y/B G/O W R/B R/L G/R R/Y Y x 3/BRB/#
22 2X 2V 2T 2R 2P 2N 2L 2J 2H 2F 20 28
I-12 SOLENOID VALVE
(PURGE CONTROL) (EM) 81-14 SOLENOID VALVECPRC LOW TEMP) (EM) 81-15 INJECTOR NO.1 (INJ) 81-16 INJECTOR ~0.3 (INJ) 81-17 INJECTOR N~.~(INJ) El-18 INJECTOR No.4 (IN,
1-19 WATER THERMOSENSOEBl-24 KNOCK CONTROL LJNIfBl-25 KNOCK SENSOR00 81-29 SOLENOID VALVE
Bl-30 INJECTOR RESISTOR 81-31 SOLENOID VALVE
30

b
---
HARNESS SYMBOL : B(F) m (E) HL;5 (I)m (R) +++ (CM%)= (IN) **t (FR)E (EM)- (INJ)
l
,-
A 1

-” ‘ENGINE CONTROL SYSTEM (3/3)
FRM\IT FOG LIGHT RELAY REAR WINDOW
INsTF%+ffNT CLUSTER BLOWER
SWITCH
(SECTION G1
B/O B/O E/LG B/BA L/Y t
(EM) (EM) (EMI (EM)
I
%P
:;~~~=====~::~~~~=~~=~~
POWER STEERING
PRESSURE SWITCH
8
2-01 ENGINE CONTROL UNIT (EM) El-10 POWER STEERING PRESSURE SWITCH(F)
I” IS 10 ID 1M IK iI IG IE 1C ,A 2Y 2W 2U 25 20 20 2H 2K 21 26 2E
2C 2A
R/B O/L G/B G * -G/Y L G/W * v L/R LG L/O Y R/Y L/W R -G/d-G/F * Y/L P/B 3/LG B/O
BR/ B/L B/G L/Y R/W * L/B O/B W/B W/Y W/R G W/L Y/B G/O W R/B R/L G/R R/Y * x B/BqE/O
1” ,T
IR II’ 1N IL 1.J 1H 1F 10 16 2X 2V 2T 2R 2P 2N 2L 2J 2H 2F 2D 28
1-20 AIRFLOW METER (EM) 81-21 THROTTLE SE%;; 81-22 CLUTCH SWITCH (F) 81-23 NEUTRAL SWITCH (EM)
ii
32

ENGINE CONTROL --
HARwEss SYYBOL : a (F) m (E) a (I) m (R) +++(DR) z (IN) ^t (FFi)c (EM)= (INJ)
_ :-e*_l-,
-bGi”
B-l

1B 0 Main relay
(FUEL INJ r&y)
Ignition switch
(STARI)
1D 0 Self-Diagnosis
Checker
(monitor lamp)
I IJ 0 A/C relay
Ignition switch ON
vs
NC switch ON at idle
6&w 2 54
NC swtch OFF at Idle VB
-
‘“‘~~
System Selector test switch at
I I I
I I I 1L - - - -
- -
IM 1 - 1 - -
I - -
- 1T ThrorUe SW&X
(ii switch)
Foghghl relay
P/S pressure
switch
A/C switch
Electric coding fan
swlch
Blower control
swtch
Rear wlndow
defroster swtch
Neutral/Clutch
switches Tesl condnton
Accelerator pedal released
Accderator pedal depressed -*
B&low l.OV
Vi3
Togllghtsmtcll
Foglight switch OFF
lanitton switch ON V0
OY
VR .-
P/S pressure switch ON at tdle
P/S pressure swtch OFF at I& 6&w 1 .ov
Ye
Fan operatbng (coolant temperature over
97OC I207OF ) or diagnosis connector
Blower control switch OFF or 1st posttion
E~iower conlroi svntch 2nd or higher po-
Rear wndow defroster OFF
Rear wndow defroster ON ~~
Neutral pcsitw or clutch pedal
rlr-n -
Ignition swrlch
ON and biowtr
motor ON -
Ignition switch
ON
Ignition switch
ON
34

Ve:BenyVdhfp
Test condttton
-roliqc lblwk
lgnhn switch ON
VI3
- bmtm
2A
28
x
2D
2E
2F
26
2H
21
2J
2K
21
2M
2N
20
2P
20
2R Test condtthw
ranabla
2s
2T
2u
2v
2W
2x
2Y
arm-up)
P
P
8°F) P
ov
ov
ov
ov
ov of sv
Approx. 2v
-
ov or 5v
tpplox. 1.5
- connected to
oveftmost warning
tluzz.af
I
I
i”e started wilh cootanl 1 Below 1.5V 1 No&ad engine 1Bo sec. alter eng
temperature is above 90% 1194°F ) and
CondilkJn
iniake air temperature is between 40%
I l@i°F) and So% (122OFj
Other condition at idle
VB
lgrition switch ON
L VE ‘Engine Signd
Idle
VFJ’ Monitor: Green
Engine speed above 2.ooO rpm during
VE and red lamps
Nash Sde”&d valve
m kw tap.)
deceteralion (alter warm-up) -
-
0 -
lanition switch ON -
-
-
-
0 lnjedor (Nos. 1. 3) -
Ignition switch ON
Idle
injector (Nos 2. 4) IgrMon switch ON
I -3 Va
I
ISC valve -
-
0
0
-
0
0
0
0
-
0
0
-
- Idle -
Lpprox. 4.01
4.!--5sv
0 of 5v Knock control unit
Engine speed above 2,GOD rf
Thio#e sensor/
Airllow mder Constant -
0 Solenoid valve
(purge conlro4) Ignition switch ON
II
-
I* I “la I
lgnitlon switch ON .-.- ._
lgnitiin swilch ON VB
-
Idle Below 1.w
210 sec. alter engine started with coolant Below 1.5V No&d engine
temperature above 90% ( 194OF) and
cofditlon
intake air temperature above 50°C
/122OF)
Other condition al idle Va - 0
0 Qrcuit-oparing
relay
sdenoid valve
(PRC high temp.) Accelerator pedal released
Accelerator pedal lully depfesw ,pprox. 0.5L
.pprox. 4.oi 22 -
1 J
Is- r,
L-7 r
2Y Zw 2U 2s 20 20 ZM 2K 21 2G 2E 2C ZA 1U IS 10 10 1M tK I, tG 1E ,C ,A
22 2X ZV 2T ZR 2P 2N 2L 2J 2H ZF 20 28 1V IT IF! ,P IN 1L 1J t” 1F 10 19 lamlion switch ON
Idle (cold engine)
Idle (alter warm-up) ov
o-l.OV
0.5-l.OV
o-0.4v
xpprox. 3.8
tipprox. 3.0
tpprox 2.5
bpprox. 2.5
Bdow 0.5v
V8 -
lncreasmg engine speed (after w
Deceleralion
lgnltro” switch ON Airllow meter -
n airflow meter intake aa
Ambient air temperalure 20°C (6
ErlQl”l? codant temperature 200(
Alter warm-up
Ignition switch ON Water
thermosensor
To&charge
rndlcator
1 I
UI “I
u-1 r
-
2Y ZW ZU ZS 20 20 2M ZK 21 2G 2E 2C ZA lU IS 10 10 1f.I 1K 11 1G 1E tC 1A
22 2X 2V 27 2P 2P 2N 2L 2J 2H ZF 2D 28 IV IT IA 1P IN IL 1.1 1H 1F ID It3
35

0;
B;
36 3-2 #COOLING FAN SYSTEM
I
COOLING FAN
RELAY NO.3
THERMOSWITCH
Z-01 COOLING FAN 62-02 COOLING FAN
RELAY NO. 1 (E)
MOTOR tF) 82-03 WATER THERMO- 82-04 SHORT “0”““~;;
SW ITCH (EM)
'-05 COOLING FAN
RELAY NO. 2 (Fl 82-06 COOLING FAN
RELAY NO, 3 (F)
B/R B/W
M L B/G

--~
B SYYBOL : E (F) m (E) a (I) m (R) +++ (OR) c (IN) z (FR)c (EM) E (@U)
I
I
B-2 I
JOINT BOX
FUSE BOX
COOLING FAN
RELAY
82-O
82102
82107
COOLING FAN WATER THERMOSWITCH
MOTDR
@two (BLACK,

INSTRUMENT CLUSTER
ILLUMINATION LAMP
;REFER TO SECTION I-4
c l INSTRUMENT CLUSTER &i WARNING LAMPS 0 .F.R.GERMAI
*....ABS
COMBINATION SWITCH
(SECTION E-l. 21
ENGINE CONTROL UNIT
(SECTIIXJ
B-ICI
SECTION F-2. 3)
l-l rr
II l-l
* * w
,,“,, W/R G/ G/Y Y l-l II
II rl
WY & * 2% l-l II II l-l
R R/B
* Y/L B B/G G/W 6/B 767 G/R
B/O * * L/W V * L
1.J II iH 1G *r- fk io IC pJ ipi * Y/R * W/E R/Y
a 2% 2.3 21 w 28 n- a a x ZB 2A
K 3 34 31 3 Lx+ 3 * a x 33 3*
-02 OIL PRESSURE
SWITCH(E) C-03 BRAKE FLUID SWITCH C-04 PARKING BRAKE
(0 SWITCH(R) C-05 WASHER LEVEL SENSO C-07 WATER THERMOSENSOR
(Fg
(INJ)
pjlfzJ
ma
f
38

(F)-(R) PARKING BRAKE
SWITCH
FUSE BOX JOINT BOX
JB-06
JB-04
8?%SS”FlE
SWITCH
q-02
//