1990 MITSUBISHI SPYDER engine

HYDRAULIC UNIT
ABS Hydraulic .
.
REMOVAL AND
.
Operationl Brake Fluid Draining
l Splash Shield (L.H.) Removal
(Refer to GROUP 42
Fender.)
l Headlight Assembly (L.H.) Removal
(Refer to GROUP 54 -Headlight, Front Turn-SignalLight and Position Light Assembly.)
l Air Cleaner Assembly Removal Engine(Non-turbo)>l Engine Control Module (ECM) Removal Engine (Non-turbo)>l R e l a y B o x B r a c k e t R e m o v a l E n g i n e(Non-turbo)>
Power Steering Pipe, Pipe
Clamp: Engine.( T u r b o ) a n d . GROUP l ‘Power‘ Steering Oil Reservoir Bolts (Turbo) and (Refer’to GROUP Power Hoses.)
l R e l a y Installation (Non-turbo)>l Engine Control Module (ECM) Installation Engine (Non-turbo)>l Air Cleaner Assembly Installation Engine(Non-turbo)>l Power Steering Oil Reservoir Mounting Bolts
Removal Engine (Turbo) and (Refer to GROUP Power Steering Hoses.)
l Power Steering Pressure Pipe and Return Pipe
Clamp Mounting Bolts Removal
EngineTurbo)and Engine>
Refer to GROUP Power Steering Hoses.) l
Headlight Assembly (L.H.) Installation
(Refer to GROUP 54 Headlight, Front Light and Position Light Assembly.)
l Splash Shield (L.H.) Installation
(Refer to GROUP 42
Fender.)
l Brake Fluid Supplying
l Brake Lines Bleeding (Refer to
lHydraulic Unit (Refer to
Flared brake line nuts
Removal steps
1. Brake pipe connection2.Harness connector
3. Hydraulic unit assembly
4. Hydraulic unit 5. Hydraulic unit bracket
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I

ABS CHECK
A B S
1. When the ignition turned to ABS
warning light flashes 4 times during a to
then off.
2.When the ignition to the
warning light remains
3.When the ignition switch’ turned back to the the
ABS warning light times then
switched off. ,
4. If the illumination is other than the the
diagnostic trouble codes.
ABSIlluminated
light
Not illuminated
Ignition
switch
0 0 0 0 3 6 2 5
INSPECTION CHART FOR TROUBLE
Get an understanding the trouble symptoms and check according the procedure chart.
Trouble symptom
Communication with scan
tool is not possible.Inspection Reference’
procedure
page No.,
Communication with all systems is not possible.
Communication with ABS only is not possible.
When the ignition key is turned to “ON” (engine sto pped), the ABS warning light does
3not illuminate.
After the engine starts, the ABS warning light rema ins illuminated.
4
When the ignition key is turned to “START”, the ABS warning light does not5
illuminate.
After the ignition key is turned to “ON”, the waining light blinks once, and when6turned to “START”, it illuminates. When returned to “ON”, the light flashes once, and
then switches off.
Faulty ABS operation Unequal braking bower on both sides
. braking power
ABS operates under normal braking conditions
ABS operates before vehicle stops under normal braking conditions
Large brake pedal vibration (Caution 2.)
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ABS Troubleshooting
INSPECTION PROCEDURE 3
ignition key is turned to “ON’? (engine stopped),ProbableABS warning light does not illuminate
[Comment]When power is supplied to the ABS-ECU, the valve relay changes from to OFF ON by the initial check, and thus even if there is a problem with the circuit betweenABS warning light and ABS-ECU, the light will illum inate once when the valve relayis OFF.Accordingly, the cause of the light not illuminating is probably an open circuit in the
light power circuit, a blown light bulb, or an open circuit in both the circuit between
the ABS
liaht and the ABS-ECU and the circuit between the ABS
l Blown fuselBurntout light. bulblMalfunction of wiring. or connector
.
light and the relay.When other lights also do not illuminate, the cause is probab ly a blown fuse.
N GNG ,
Measure at combination meter connector Checkl and l Disconnect the connector and mea-
l Disconnect the connector and mea-
sure atthe combination meter side.
l Continuitv between terminals
OK Continuity
OK
Not
Replace combination meter.
, Check the harnesses between the valve relay and the combination meter,
a n d b e t w e e n t h e A B S - E C U a n d
combination meter (common section).
Repair, if necessary.
INSPECTION PROCEDURE 4
Even after the engine is started, the ABS warning l ight Probable cause ,
remains illuminated.
[Comment]There is probably a short in the ABS light illumination l Malfunction of meter
l Malfunction of valve relay
l Malfunction of ABS-ECU
l Malfunction of wiring
NOTE
This trouble symptom is limited to cases where comm unication with the scan tool is
supply is normal) and the diagnostic trouble code is a normal diagnostic trouble code.
Disconnect the ABS-ECU connector Short circuit inside the combination meter or in the Does the ABS warning light remain illuminated? between the combination meter and the ABS-ECU.
NO
Replace the ABS-ECU.
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On-vehicle
When turning by, hand
-:--‘---t---i-.-i-.-;----~---!---
--!-4--
When idling (5-6 gear (manual transaxle) or (automatic transaxle
10.01
Inspecting Wave Forms With An Oscilloscope
Use the following to wave
from wheel sensor’
lStart the engine, and by engaging
gear (vehicles manual transaxle) or
(vehicles with the rear
so that they, at a
NOTE
1. Check the connection of the
before using the oscilloscope.,
2. The wave form measurements can also be
the vehicle is actually moving.
3. The output voltage will be low when the wheel sp eed
‘is low, and similarly it will be higher as the whe el speed
Points In Waveform Measurement
SymptomProbable causesRemedy
Too small or zero waveform
amplitude
Waveform amplitude fluctuates ex-
cessively (this is no problem if the minimum amplitude is 100
or
more)
Faulty wheel speed sensor
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Axle hub eccentric or with large
Replace sensor
Replace hub
Noisy or disturbed waveform Open circuit in sensor
Open circuit in harness Replace sensor
C o r r e c t
Incorrectly mounted wheel speed sensor
ABS rotor with missing or damaged teeth
NOTE
The wheel speed sensor cable moves following motion of the front or rear is likely . . . . . it has an open circuit only when driving on rough roads and it functions normally on It IS,
recommended to observe sensor output voltage wavefo rm also under special conditions, rough

ABS On-vehicle Service
ABS-ECU
14
32
A B S V a l v e R e l a y
When no current
flows
Between
Between
Between terminals continuity
When current flows Between terminals No
between terminals
B e t w e e n
0
POWER RELAY CHECK
Remove the instrument under cover the
relay.
voltageTerminal No. .
34
Power is not supplied00
Power is supplied.
REMEDY FOR A FLAT ,35200350072
When booster cables are used to start the engine wh en the’
battery is completely flat and then the vehicle is
driven without waiting for the battery to
some extent, the engine may misfire, and driving not
be possible.
This happens because ABS consumes a great of’
current for its self-check function; the remedy is to either
allow the battery to recharge sufficiently, or to r emove the,
fusible link for ABS circuit, thus disabling the an ti-skid brake
system.
The ABS warning light will illuminate the fusible
(for is removes.
After the battery has sufficiently charged, install the fusible
link (for ABS) and restart the engine; then check t o be sure
the ABS warning light is not illuminated.
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3 6 - 4P A R K I N G B R A K E S O n - v e h i c l e
PARKING BRAKE LEVER-
ADJUSTMENT
Pull ‘the parking brake lever with a force of appro
x.
(45 and count the number of notches.
Standard value:
3-5 notches
< V e h i c l e s w i t h
notches
Caution. . ,
The 196 (45 force of the brake
must be strictly observed.
2.If the parking stroke the standard
adjust as described below.
Remove the inner mat of the floor c&l-
sole.
(2) Loosen the adjusting nut to the end of. the
rod, thus freeing the parking, brake cable,,
With the engine idling, forcefully depress pedal’
five of six times and confirm that the pedal stroke stops
changing.
N O T E
If the pedal stroke stops changing, the automatic-a djustment
mechanism is functioning normally, and the clearanc e between
the shoe and drum is correct.

1.Remove the adjustment hole plug, and then use a fla t-tip
screwdriver to turn the adjuster in the direction of
the arrow (the direction which expands the shoe) so that
the disc will not rotate.
2.Return the adjuster five notches in the direction opposite
to the direction of the arrow.
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CONTENTS
GENERAL INFORMATION. . . . . . . . . . . . . . . . . . 2POWER STEERING GEAR . . . . . . . . . . 18
LUBRICANTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3P O W E R S T E E R I N G H O S E ’ S
Engine . . . . .
ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . 7 Engine (Turbo) and . . . 47
Bleeding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Checking Steering Wheel Return to Center
. . . .8
Fluid Level Check. . . . . . . . . . . . . . . . . . . . . . . . . . .8
Fluid Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . .9
Oil Pump Test
. . . . . . . . . . . . . . . . . . . . .
Power Steering Pressure Switch Check
. . . . . . .13
Stationary Steering Effort Check. . . . . . . . . . . . . .8
Steering Angle Check. . . . . . . . . . . . . . . . . . . . . . . .7
Steering Wheel Free Play Check. . . . . . . . . . . . . . .7
Tie Rod End Ball Joint Breakaway Torque Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
POWER STEERING OIL PUMP
Engine (Non-turbo)> . . . . . . . . . . . . . . .
Engine (Turbo) and Engine> . . . 39
SEALANTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SERVICE SPECIFICATIONS . . . . . . . . . . . . . . . . . 3
SPECIAL TOOLS. . . . . . . . . . . . . . . . . . . . . . . . . . .4
STEERING WHEEL AND
. . . . . . . . . . 14
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL (SRS) EQUIPPED
WARNING!(1)Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead
the SRS inoperative).(2) Service or maintenance of any SRS component or component must be performed MITSUBISHI dealer.(3) MITSUBISHI dealer personnel must this and especially its GROUP straint System (SRS) and GROUP 00 -Maintenance beginning any service or maintenance of any com-
ponent of the SRS or any
NOTEThe includes the following components: SRS light, air bag module, and interconnecting wiring.Other SRS-related components (that may have to be r emoved/installed in with service or maintenance) are indi-
cated in the table of contents by an asterisk

STEERING General Information
G E N E R A L I N F O R M A T I O N
The type of power steering which is responsive
to engine speed has been adopted in all models.
The main features are as follows. The steering column in all vehicles has a shock
absorber mechanism and a tilt steering mechanism.
Four-spoke steering wheel has been adopted. In
A vane-type oil pump a fluid flow control system
addition, (Supplemental Restraint System) is
included adopted.
provided as a standard in all
The gear linkage is an integral rack
and
CONSTRUCTION DIAGRAM,
Steering wheel
Cooler pipe
Engine (Non-turbo)>
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