MITSUBISHI ECLIPSE 1991 Service Manual

BRAKES - Service Adjustment Procedures5-51E.C.U. terminal
ILow gear idle condition
[Speed: 5-6 km (3.1-3.16
mph)]Approx.
5V
14A0580When increasing speed
[Speed:
15-20 km (9.3-12.4 mph11OBSERVATION OF WHEEL SPEED SENSOR
OUTPUT VOLTAGE VARIATIONS<Vehicles with
ABS>N65FOAO
(1) Jack up the vehicle and release the parking brake.
(2) Disconnect the electronic control unit harness connector,
and measure the speed sensor output voltage at the
vehicle side harness connector.
(3) With an AWD model, put the shift lever in
1st (MTT) or L(A/T) position, rotate the wheels and observe the wave
shape for each wheel. With an FWD model, put the shift
lever in
1st (M/T) or L (AiT) position, rotate the wheels and
observe the wave shape for the front wheels; for the rear
wheels, rotate the wheels by hand and monitor the wave
shape.
NOTEIt is also
allright to actually drive the car.
ISpeed sensor
E.C.U. terminal No.I
IFront leftI14-15I
IFront right31-33I
IRear right28-30I
IRear left1 10-11IWhen wheel speed is slow, the output voltage is low
and it gets higher as the speed increases.
Wave shape monitoring points
IS THE OUTPUTVOLTAGE (AMPLITUDE) TOO LOW OR ISTHERE NO OUTPUT VOLTAGE?
If it is too low, check each wheel speed sensor,
With FWD rear wheels, check the sensor gap.
IS THERE VARIATION IN THE WAVE SHAPE AMPLITUDE?
If the flicker of the amplitude is large, consider shaking
of the axle hub.
IS THERE NOISE IN THE WAVE SHAPE OR DISTORTION?Broken or disconnected wire due to vibration or
installation malfunction of the wheel speed sensor.
Check rotor teeth meshing, breaks, etc.
Approx. 1 OV
14A0501

5-52BRAKES - Service Adjustment Procedures
16LO312lOWOO
(1) Remove the ABS power relay from the ABS control unit q
bracket.-/ABS POWER RELAY CHECK
NO5FOAN(2) Connect battery to terminal 2 and check continuity
between terminals with terminal 4 grounded.
Power is supplied
Power is not
supplied
l-3 terminals
1-3 terminals
2-4 terminalsContinuity
No continuity
Continuity
A
IFLAT BATTERY REMEDYNOWOAF
When booster cables are used to start the engine when the
battery is completely flat and then the vehicle is immediately
driven without waiting for the battery to recharge itself to some
extent, the engine may misfire, and driving might not be
possible. This happens because ABS consumes a great
amount of current for its self-check function; the remedy is to
either allow the battery to recharge sufficiently, or to discon-
nect the connector for ABS circuit, thus disabling ABS.
The ABS warning light will illuminate when the connector (for
ABS) is disconnected.
After the battery has sufficiently charged, connect the connec-
tor (for
ABS) and restart the engine; then check to be sure the
ABS warning light is not illuminated.

BRAKES - Brake Pedal5-53
BRAKE PEDAL
-I REMOVAL AND INSTALLATION
.Pre-removal Operation
aRemoval of Knee Protector
(Refer to GROUP 23%Instrument Panel.)
ORemoval of Lap Cooler Duct and Shower
Duct (L.H.)(Refer to GROUP 23-Instrument Panel.)l Removal of Steering Column Assembly andColumn Support <MTT>
(Refer to GROUP
19-Steering Wheel andShaft.)*Removal of Relay Box (Indoor)
<A/T>
NO5OA--Post-installation Operation
l installation of Relay Box (Indoor)l Installation of Steering Column Assembly andColumn Support
(Refer to GROUP 19-Steering Wheel and
Shaft.)@Installation of Lap Cooler Duct and Shower
Duct
(L.H.)(Refer to GROUP 23-Instrument Panel.)l Installation of Knee Protector(Refer to GROUP 23-Instrument Panel.)aBrake Pedal Adjustment
(Refer to P.5-41.)20-25 Nm
,‘14-18 ft.lbs.
IO-15 Nm /7-11 ft.lbs.
/
11-17 Nm
8-12 ftlbs.6-9
ftlbs.Removal steps
1. Stop light switch connector
2. Stop light switch
l + 5. Return spring
9.Cotter pin10.Washer11.Clevis pin12.Cotter pin
13. Shift-lock cable connection
20. Lever assembly (A) mounting nut
NOTF(i, Reverse the removal procedures to reinstall.(2) 4I) : Refer to “Service Points of Removal”.(3) l * : Refer to “Service Points of Installation”.
(4) m : Non-reusable parts
(5) *: Vehicles with auto-cruise control system
14A0525
l *
21.Lever
22. Pedal support bracket
24. Lever assembly (A)
25.Bushing
26. Pedal rod
27.Bushing
28.Brake pedal
29. Lever assembly(B) mounting nut
30. Lever assembly
(B)31.Bushing
.20

5-54BRAKES -Brake Pedal
<M/T>Removal steps
IO-15 Nm
7-11 ft.lbs.
\
20-25 Nm
14-18 ft.lbs.I17-26 Nm
12-19 ft.lbs.
18-12 Nm
- 6-9 ft.lbs.- /-
117-11 ft.lbs.
13clutch switch Stop light switchconnectorStop light switch
Clutch switch connector andInter lock switch connector
Return springReturn spring <Non-Turbo>
Clip <Turbo>
Turn over spring <Turbo>
Cotter pin
Washer
Clevis pin
1::16.
1::19.
22.
23.
W 25.
4*26.I)4 27.28.
Brake booster push rod
Pedal and bracket assembly
Clutch pedal mounting nut
Lever assembly
Clutch pedal bracketInter lock switch
Pedal support bracket
Clutch pedal
Bushing
P,;$;d
Brake pedal
14AG451
Fyfeverse the removal procedures to reinstall.
(2) 4* : Refer to “Service Points of Removal”.
(3) l 4 : Refer to “Service Points of Installation”.# m : Non-reusabje parts*: Vehicles with auto-cruise control system
SERVICE POINTS OF REMOVAL
NO5GBAHa
26. REMOVAL OF PEDAL RODUsing a plastic hammer, remove the pedal rod from the
pedal support bracket.

BRAKES - Brake Pedal5-55
14L0142No continuity
Continuity
mm
t.16 in.)
14LO171
:Vehicles with auto-cruiseontrol svstem>
14A0256
14ll0050
INSPECTIONNoMicAll Check the bushing for wear.
l Check the brake pedal for bend or twisting.
l Check the brake pedal return spring for ‘damage.
Stop light switchConnect a circuit tester to the stop light switch, and check
whether or not there is continuity when the plunger of the’stop
light switch is pushed in and when it is released.
The stop light switch is in good condition if there is no
continuity when the plunger is pushed in to a depth of within 4
mm
(.I6 in.) from the outer case edge surface, and if there is
continuity when it is released.
For vehicles with the auto-cruise control system, the check for
continuity should be made at connectors “a” and “b” of the
stop light switch.
SERVICE POINTS OF INSTALLATIONN05GDBAa
27.125. APPLICATION OF GREASE TO BUSHING
Apply a coating of the specified grease to the inner surfaceof the bushings.
Grease: MOPAR Multi-mileage Lubricant
Part No. 2525035 or equivalent
11. APPLICATION OF GREASE TO CLEVIS PIN/ IO.
WASHERAfter applying the specified grease to the
clevis pin and
washer, insert the clevis pin and bend the cotter pin tightly.
Grease: MOPAR Multi-mileage Lubricant
Part No. 2525035 or equivalent
8. INSTALLATION OF TURN OVER SPRING <TURBO>Refer to GROUP
6-Clutch pedal.
6.15. INSTALLATION OF RETURN SPRINGInstall the return spring in the direction indicated in the
illustration.

5-56BRAKES -Master Cylinder
MASTER CYLINDERREMOVAL AND INSTALLATION
Pre-removal Operation
l Draining of Brake FluidPost-installation Operationl supplying Brake Fluidl Bleeding(Refer to P.5-45.1l Adjustment of Brake Pedal(Refer to P.5-41.)
Removal steps
/8-12 Nm
6-S Mbs.
14A02491. Fluid level sensor connector
2. Brake tubes
3. Reservoir hoses
4. Master cylinder
5. Reservoir
6. Bracket
NOTE
l 4Adjustment of clearance between brake(I) Reverse the removal procedures to reinstall.
booster push rod and primary piston(2) l + : Refer to “Service Points of Installation”.
14110053SERVICE POINTS OF INSTALLATIONNWlDAOa
. ADJUSTMENT OF CLEARANCE BETWEEN BRAKE
BOOSTER PUSH ‘ROD AND PRIMARY PISTONAdjust the clearance (A) between the brake booster push
rod and primary piston as follows:
m
J

14110064BRAKES - Master Cylinder5-57
(1) Measure the dimension (B) between the master cylinder
end face and piston.
NOTETo obtain
(B), first take measurement with a square placed
on the master cylinder end face. Then, subtract the
thickness of the square to arrive at (B).
14110065(2) Obtain the dimension
(C) between the brake booster
mounting surface on the master cylinder and the end face.(3) Measure the dimension
(D) between the master cylinder
mounting surface on brake booster and the push rod end.
NOTE
To obtain (D), first take measurement with a square placedon the brake booster. Then, subtract the thickness of the
square to arrive at
(D).(4). Using the measured values obtained in (1) through
(3),obtain the clearance (A) between the brake booster push
rod and primary piston.
Standard value: [A (A = B-C-D)]
9 inch brake booster0.8-1.0 mm
(.031-.039 in.)
7 +8 inch brake booster0.5-0.7 mm
(.020-.028 in.)
(5) If the clearance is not within the standard value range,
adjust by changing the push rod length by turning the
adjustable end of the push rod.
Caution
Improper clearance may cause excessive brake drag.

5-58BRAKES - Master Cylinder
IISASSEMBLY AND REASSEMBLYNOMA-
r------1
11414UO125
Iii
Brake master cylinder kit
6
:.5i340,b;m- . .
; .5F3h0,bfm
- . - +-10
.3.0 Nmft.lbs.
Disassembly steps
1. Reservoir cap assembly2.Diaphragm3.Reservoir cap4.Filter;: ;3r&e fluid level sensor
7.ReservoirI)+8.Nipple9.Reservoir seal
4+10. Piston stopper bolt
MAO57511. Gasket
aLI)12. Piston stopper ring+e ~~ 13. Primary piston assembly+e W 14. Secondary piston assembly
~~ 15. Master cylinder body
FrEeverse the disassembly procedures to reassemble.
(2) 4e : Refer to “Service Points of Disassembly”(3) l + : Refer to “Service Points of Reassembly”I;! m : Non-reusabje parts*: Vehicles with ABS

BRAKES - Master Cbhder5-59
I14LO211
14AO237SERVICE POINTS OF DISASSEMBLY
’ NOSH&
10. DISASSEMBLY OF PISTON STOPPER BOLTRemove the piston stopper bolt, while depressing the
piston.
12. DISASSEMBLY OF PISTON STOPPER RINGRemove the piston stopper ring, while depressing the
piston.
13. DISASSEMBLY OF PRIMARY PISTON ASSEMBLY
Caution
Do not disassemble the primary piston assembly.
14. DISASSEMBLY OF SECONDARY PISTON ASSEMBLY
NOTEIf it is hard to remove the secondary piston from the
cylinder, gradually apply compressed air from the outlet
port on the secondary end of the master cylinder.
Caution
Do not disassemble the secondary piston assembly.
INSPECTIONNOWDAC
lCheck the inner surface of master cylinder body for rust or
pitting.
lCheck the primary and secondary pistons for rust, scoring,
wear, damage or wear.
l Check the diaphragm for cracks and wear.
SERVICE POINTS OF REASSEMBLYNOWCAI
15. APPLICATION OF FLUID TO MASTER CYLINDER
BODY / 14. SECONDARY PISTON ASSEMBLY/ 13. PRI-
MARY PISTON ASSEMBLYApply the specified brake fluid sufficiently to the inner
surface of the master cylinder body and to the entire
surface of the secondary and primary pistons.
Specified brake fluid: MOPAR Brake Fluid/
Conforming to
DOT3
8. INSTALLATION OF NIPPLESBe sure that the primary side nipple and secondary side
nipple are not mistaken one for the other when installed.

5-60BRAKES - Brake Booster
BRAKE BOOSTER
REMOVAL AND INSTALLATION
IPre-removal Operationl Drainino of Brake FluidI6
Removal steps
1. Relay box (for air conditioner)
2. Solenoid valve assembly
3. Brake fluid level sensor connector4. Brake tube
5. Master cylinder, hose, reservoir assembly
+I) e+6. Vacuum hoses with check valve+a 7. Fitting
8. Cotter pin
I)4 9. WasherI)4 10. Clevis pin11. Fuel return tube installation bolt
12. Brake tube installation bolt
13. Brake booster
14. Sealer
MA0392
NOTE(1) Reverse the removal procedures to reinstall.(2) ** : Refer to “Service Points of Removal”.(3) l * : Refer to “Service Points of Installation”.(4) m : Non-reusable parts