1990 MAZDA 232 Workshop Manual Suplement

GI FUNDAMENTAL PROCEDURES
9MUGtX-040
SMLIGIX-041
SMUGIX-004
1. Inspection of parts
When removed, each part should be carefully inspected for
malfunctioning, deformation, damage, and other problems.
2. Arrangement of parts
All disassembled parts should be carefully arranged for re-
assembly.
Be sure to separate or otherwise identify the parts to be
replaced from those that will be reused.
3. Cleaning parts for reuse
All parts to be reused should be carefully and thoroughly
cleaned in the appropriate method.
REASSEMBLY
Standard values, such as torques and certain adjustments
must be strictly observed in the reassembly of all parts.
Refer to STANDARD BOLT AND NUT TIGHTENING TORQUE
in Section TD for tightening torques not mentioned in the main
text.
If removed, these parts should be replaced with new ones:
1. Oil seals 2. Gaskets
3. O-rings
4. Lock washers
5. Cotter pins 6. Nylon nuts
Depending on location:
1. Sealant should be applied to gaskets.
2. Oil should be applied to the moving components of parts.
3. Specified oil or grease should
be applied at the prescribed
locations (such as oil seals) before reassembly.
‘31-6

FUNDAMENTAL PROCEDURES GI’
I
ADJUSTMENTS
Use suitable gauges and/or testers when making adjustments.
I 67UOGX-002 RUBBER PARTS AND TUBING
Prevent gasoline or oil from getting on rubber parts or tubing.
5
Gl-7

GI JACK AND SAFETY STAND PUSITIONSNEHICLE LIFT (2-SUPPORT TYPE) POSITIONS
JACK AND SAFETY STAND POSITIONS
FRONT END
Jack position:
At the front crossmember Safety stand positions:
On both sides of the body frame
REAR END
Jack position:
At the center of the rear crossmember Safety stand positions:
On both sides of the body frame
At the rear dtierential (4WD)
03UGlX-801 L j 03UGtX-010
VEHICLE LIFT (Z-SUPPORT TYPE) POSITIONS
FRONT END REAR END
Frame Frame
Side sills Side sills
I-
SMUGIX-Cl0
Gl-8 SMUGIX-011

TOWING GI
i
e
I
I
: -
I
1
1
t
I
$
t
WHEEL tiOLLtES
I I 03UGIX-002
TOWING
Proper towing equipment is necessary to prevent damage to
the vehicle.
Laws and regulations applicable to vehicles in tow
must al-
ways be observed.
As a general rule, towed vehicles should be pulled with the
driving wheels off the ground. If excessive damage or other
conditions prevent towing the vehicle with the driving wheels
off the ground, use wheel dollies.
With either automatic or manual transaxle:
1, Set the ignition switch in the ACC position;
2. Place the selector lever or shift lever in N (Neutral);
3. Release the parking brake.
Caution
l 50 not tow the vehicle backward with driving wheels
on the ground. This may cause internal damage to
the transaxles.
l 50 not use the hook loops under the front and rear
of the vehicle for towing purposes These hook
loops are designed ONLY for transport tie-down. If
tie-down hook loops are used fur towing, the
front/rear bumper wiIl be damaged.
TIE-DOWN HOOKS - FRONT
TIE-DOWN HOOKS - REAR

GI IDENTIFICATION NUMBER LOCATIONSIUNITSIABBREVlATlONS
IDENTIFICATCON NUMBER LOCATIONS
I
VEHKZLE IDENTIFICATION NUMBER @‘IN) AUTOMATIC TRANSAXLE MODEL AND NUM8ER
ENGINE MODEL AND NUMBER
UNlTS
N-m (m-kg or cm-kg,
ft-lb or in-lb) . . . . . .._.......... Torque
rpm ._._..._.. . . . . . . .._.._.._. . .._. Revolutions per minute
A . . .._._._...__.._.._.._. .__...._. . . Ampere(s)
v .._.... .* .*... ..__.._...*. ..*. .*. ,. Volt(s)
0 I.._._............**..-.-*..-....... Ohm(s) (resistance)
Wa (kg/cm2, psi) . . . . . . . . . . Pressure
(usually positive)
mmlig (inHg) . . . . . . .._.._... Pressure
(usually negative)
w . . . ..*.....e*.-..-..-.....*.e..... Watt
liters (US qt, imp qt) .._. Volume
mm (in) ,_._.._._..._.,_. .~. . ..__ Length
89UOGX-006
ABBREVIATIONS
AB.DC ........................... After bottom dead
center
A/C _ .............................. Air conditioner
ACC ............................. Accessories
ATX ............................. Automatic transaxte
ATDC ......................... Afier top dead center
ATF .............................. Automatic transmission
ftuid
BAC ........................... Bypass air control
BBDC.. ......................... Before bottom dead
center
BTDC ........................... Before top dead center
CPU ............................. Central processing unit t EC-AT ........................... Ekctronically-controlled
automatic transmission
ECU ............................. Engine control unit
EGI ............................... Electronic gasotine
injection
EL ................................ Electricaf toad
EX ................................ Exhaust
IC ................................. Integrated circuit
IGN ............................... Ignition
IN ................................. Intake
tNT ............................... Intermittent
ISC ............................. Idle speed control
LH ................................ Left hand
M .................................. Motor
MIL ............................... Malfunction indicator
lamp
tb4TX. ............................. Manual transaxle
OD. ............................... Overdrive
OFF .............................. Switch off
ON ................................ Switch on PCV .............................. Positive crankcase
ventilation
PRC.. ............................ Pressure regulator
control
P/S ................................ Power steering
P/W .............................. Power wtndow
RH.. .............................. Right hand
SST ............................... Special service tool
ST .................................
Start
SW . . .............................. Switch
TDC. ............................. Top dead center
4VVD ............................. 4-wheel drive

INSTALLATION OF MUBlLE TWO-WAY RADIO SYSTEM
If a mobile two-way radio system is installed improperly or if a high-powered type is used, the EGl system
and other systems may be affected.
When the vehicle is to be equipped with a mobile two-way radio, observe the fotlowing precautions:
I. Install the antenna at the farthest point from control units.
2. Install the antenna feeder as far as possible from the control unit harnesses (at Ieast 30 cm Ill.8 in]).
3. Ensure that the antenna and feeder are properly adjusted.
4. Do not install a high-powered mobile two-way radio system
r
CAUTION GI
i
CRUISE CONTROL UNIT
FEEDER WIRE
MOBILE TWO-WAY RADlO
CONTROt/UNlT HARNESS
/
AT . LEAST 30 cm
(f1.3 in)
ENGINE C0NiROL UNIT
/
FAR&T POlNT
REMOVAL OF IGNITION KEY ON AUTOMATIC
TRANSAXLE MODEL
The seiector iever must be in P (PARK) to turn the
ignition key
to the OFF position. If the switch seems to be off but the key
cannot be removed, the switch may stilt be in the ACC posi-
tion, or the selector lever may not be in P (PARK). Shitt the
selector lever to P (PARK), and turn the ignition key to the
LOCK position. The key should now be free for removal.

GI CAUTKN
SMUGIX-a21
I VOLTMETER
1 9MUGlX-021
POWER SOURC
ELECTRICAL TROUBLESHOOTING TOOLS
Test Light
The test light, as shown in the figure, uses a f2V bulb. The
two lead wires should be connected to
probes.
The test light is used for simple voltage checks and for check-
ing for short circuits.
Caution
l When checking the control unit, never use a butt,
over 3.4w.
Jumper Wire
The jumper wire is used for testing by shorting across switch
terminals and ground connections.
Caution
l Do not connect a jumper wire from the power source
, line to a body ground; this may cause burning or
other damage to harnesses or electronic com-
ponents. -
Voltmeter
The DC voltmeter is used to measure of circuit
voltage. A volt-
meter with a range of 15V or more is used by connecting the
positive ( + ) probe (red lead wire) to the point where voltage
is to be measured and the negative (-1 probe (black lead
wire) to a body ground.
Diagnosis Connector
Insert the probe into the service hole when connecting a jum-
per wire to the diagnosis connector.
Caution
l Do not insert the jumper wire probe into the diag-
nosis connector terminal, which may damage the
terminal.
Ohmmeter
The ohmmeter is used to measure the resistance between two
points in a circuit and atso to check for continuity and diagno-
sis of short circuits.
Caution
l Do not attempt to connect the ohmmeter to any cir-
cuit to which voltage is applied; this may burn or
otherwise damage the ohmmeter.

CAUTION GI
i I 9MUGIX-022

9MUGIX-02:
9MUGIX-02
CAUTlON WITH ELECTRICAL PARTS
Battery Cable
Before disconnecting connectors or replacing electrical parts,
disconne@ the negative battery cable.
Connectors
Removal of connector
Never pull on the wiring harness when disconnecting con-
nectars.
Connectors can be removed by pressing or pulling the lock
lever as shown.
Locking of connector
When locking connectors, make sure to listen for a click that
will indicate they are securely locked.
Inspection
1. When a tester is used to check for continuity or to measure
voltage, insert the tester probe from the wire harness side.
Gl-13