
Downloaded from www.Manualslib.com manuals search engine 0A-12 GENERAL INFORMATION
Never connect any tester (voltmeter, ohmmeter, or what-
ever) to electronic control unit when its coupler is dis-
connected. Attempt to do it may cause damage to it.
Never connect an ohmmeter to electronic control unit
with its coupler connected to it. Attempt to do it may
cause damage to electronic control unit and sensors.
Be sure to use a specified voltmeter / ohmmeter. Other-
wise, accurate measurements may not be obtained or
personal injury may result.
When taking measurements at electrical connectors
using a tester probe (2), be sure to insert the probe from
the wire harness side (backside) of the connector (1).
When connecting meter probe (2) from terminal side of
coupler (1) because it can’t be connected from harness
side, use extra care not to bend male terminal of coupler
of force its female terminal open for connection.
In case of such coupler as shown connect probe as
shown to avoid opening female terminal.
Never connect probe where male terminal is supposed
to fit.
When checking connection of terminals, check its male
half for bend and female half for excessive opening and
both for locking (looseness), corrosion, dust, etc.
Before measuring voltage to check for electrical system,
check to make sure that battery voltage is 11V or higher.
Such terminal voltage check at low battery voltage will
lead to erroneous diagnosis.

Downloaded from www.Manualslib.com manuals search engine FRONT SUSPENSION 3D-19
Front Shock Absorber
REMOVAL
1) Hoist vehicle.
2) Support front axle housing by using floor jack to prevent it
from lowering, refer to “When Using Floor Jack” under “Vehi-
cle Lifting Points” in Section 0A.
3) Remove shock absorber lower mounting bolt (6).
4) Remove shock absorber upper mounting lock nut (2) and
absorber nut (3). Then remove shock absorber (1).
INSTALLATION
Install removed parts in reverse order of removal proceeded, not-
ing the followings.
As shown in figure, install washer (4) and bush (5) first and
after tightening absorber nut (3) tighten lock nut (2) to speci-
fied torque.
Tightening torque
Shock absorber lock nut
(a) : 29 N·m (2.9 kg-m, 21.0 lb-ft)
Install absorber lower mounting bolt (6) in proper direction as
shown in the figure and tighten it with no load applied to axle
housing.
Tightening torque
Shock absorber lower nut
(b) : 90 N·m (9.0 kg-m, 65.0 lb-ft)
Confirm front end (wheel) alignment referring to “Preliminary
Checks Prior to Adjusting Front Alignment” in Section 3A.
Coil Spring
REMOVAL
1) Hoist vehicle and remove wheel.
2) Disconnect stabilizer ball joint from axle housing.
3) Remove brake caliper carrier bolts and suspend caliper.
W: Wheel side
7. Lower mounting nut
CAUTION:
During removal, be careful not to damage brake flexible
hose and wheel speed sensor harness (vehicle with ABS)
and not to depress brake pedal.

Downloaded from www.Manualslib.com manuals search engine FRONT SUSPENSION 3D-21
5) Install wheel and tighten wheel nuts to specified torque.
Tightening torque
Wheel nuts
(a) : 95 N·m (9.5 kg-m, 69.0 lb-ft)
6) Lower hoist.
7) Confirm front end (wheel) alignment, referring to “Prelimi-
nary Checks Prior to Adjusting Front Alignment” in Section
3A.
Bump Stopper and Spring Upper Seat
REMOVAL
1) Remove coil spring, refer to “Coil Spring” in this section.
2) Remove bump stopper and spring upper seat.
INSTALLATION
1) Install bump stopper (1) and spring upper seat (2).
2) Install coil spring, refer to “Coil Spring” in this section.
Wheel Hub / Bearing / Oil Seal
REMOVAL
1) Hoist vehicle and remove wheel.
2) Remove brake caliper carrier bolts and suspend caliper (1).
3) Remove ABS wheel sensor (if equipped with ABS).
NOTE:
Before installing bump stopper (1), apply soap water on
it.
CAUTION:
During removal, be careful not to damage brake flexible
hose and not to depress brake pedal.

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-29
On-Vehicle Service
Precaution
When connectors are connected to ABS hydraulic unit / control
module assembly, do not disconnect connectors of sensors, fuse
etc. and turn ignition switch ON. Then DTC will be set in ABS con-
trol module.
ABS Hydraulic Unit Operation Check
1) Check that basic brake system other than ABS is in good
condition.
2) Check that battery voltage is 11 V or higher.
3) With ABS warning lamp, check that no abnormality is
detected in ABS. Refer to “Diagnostic Trouble Code (DTC)
Check” in this section.
4) Lift up vehicle.
5) Set transmission to neutral and release parking brake.
6) Turn each wheel gradually by hand to check if brake drag-
ging occurs. If it does, correct.
7) With diag. switch terminal (3) of monitor connector (1) con-
nected to ground terminal (2) by using service wire (4), turn
ignition switch ON and check if ABS warning lamp indicates
DTC 12.
When other DTC’s appear on display, refer to “ABS Diagnos-
tic Flow Table” in this section.
8) Turn ignition switch OFF.
9) Perform following checks with help of another person.
Brake pedal (1) should be depressed and then ignition
switch (2) turned ON by one person and wheel (3) should be
turned by another person’s hand. At this time, check that:
Operation sound of solenoid is heard and wheel turns only
about 0.5 sec (Brake force is depressurized).
Operation sound of pump motor is heard and pulsation is felt
at brake pedal.
10) If all 4-wheels cannot be checked during one ignition cycle
(OFF → ON), repeat Steps 8) and 9) till all 4 wheels are
checked.
If a faulty condition is found in Steps 9) and 10), replace
hydraulic unit.
11) Turn ignition switch OFF.
12) Remove service wire from monitor connector.

Downloaded from www.Manualslib.com manuals search engine ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-25
Excessive detonation
(The engine makes
sharp metallic knocks
that change with throt-
tle opening.
Sounds like pop corn
popping.)Engine overheating Refer to “Overheating” of this table.
Faulty spark plug Spark plugs in Section 6F.
Clogged fuel filter and fuel lines Diagnostic Flow Table B-3
Malfunctioning EGR valve (if equipped) EGR system in Section 6E.
Poor performance of knock sensor, ECT
sensor or MAP sensorKnock sensor in this section, ECT
sensor or MAP sensor in Section 6E.
Faulty injector Diagnostic Flow Table B-1
Faulty ECM Inspection of ECM and its circuit in
this section.
Excessive combustion chamber deposits Piston and cylinder head in Section
6A1.
Overheating
Inoperative thermostat Thermostat in Section 6B.
Faulty A/C condenser fan motor or its cir-
cuitA/C condenser fan control system
check in Section 6E.
Loose or slip water pump belt ITEM1-1 Drive belt inspection and
change in Section 0B.
Poor water pump performance Water pump in Section 6B.
Clogged or leaky radiator Radiator in Section 6B.
Improper engine oil grade ITEM1-3 Engine oil and oil filter
change in Section 0B.
Clogged oil filter or oil strainer Oil pressure check in Section 6A1.
Poor oil pump performance Oil pressure check in Section 6A1.
Dragging brakes Diagnosis Table in Section 5.
Slipping clutch Diagnosis Table in Section 7C.
Blown cylinder head gasket Valves and cylinder head in Section
6A1.
Poor gasoline mileage
Faulty ignition coil Ignition coil assembly in Section 6F.
Fuel pressure out of specification Diagnostic Flow Table B-3
Faulty TP sensor, ECT sensor or MAP
sensorTP sensor, ECT sensor or MAP sen-
sor in Section 6E.
Faulty injector Diagnostic Flow Table B-1
Faulty ECM Inspection of ECM and its circuit in
this section.
Malfunctioning EGR valve (if equipped) EGR system in Section 6E.
High idle speed Refer to item “Improper Engine Idle
Speed” previously outlined.
Low compression Previously outlined.
Poor valve seating Valves and cylinder head in Section
6A1.
Dragging brakes Diagnosis Table in Section 5.
Slipping clutch Diagnosis Table in Section 7C.
Thermostat out of order Thermostat in Section 6B.
Improper tire pressure Refer to Section 3F. Condition Possible Cause Reference Item

Downloaded from www.Manualslib.com manuals search engine ENGINE AND EMISSION CONTROL SYSTEM 6E-21
Idle air control valve (IAC valve)
REMOVAL
1) Remove throttle body from intake manifold referring to
“Throttle Body” in this section for removal.
2) Remove IAC valve from throttle body.
INSPECTION
1) Connect each connector to IAC valve (1), TP sensor and IAT
sensor.
2) Check that rotary valve (2) of lAC valve opens and closes
once and then stops in about 60 ms as soon as ignition
switch is turned ON.
INSTALLATION
1) Install new O-ring (2) to IAC valve (1).
2) Install IAC valve (1) to throttle body (3).
Tighten IAC valve screws to specified torque.
Tightening torque
IAC valve screws (a) : 3.5 N·m (0.35 kg-m, 2.5 lb-ft)
3) Install throttle body to intake manifold referring to “Throttle
Body” in this section for installation. NOTE:
This check should be performed by two people, one
person turns on ignition switch while the other checks
valve operation.
As valve operation is momentary, it may be over-
looked. To prevent this, perform this operation check 3
times or more continuously.
If rotary valve of lAC valve does not operate at all,
check wire harness for open and short. If wire harness
is in good condition, replace lAC valve and recheck.