1997 SUBARU LEGACY brake sensor

4-4d
(TyoAJs1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor

1

E

1
21314151617181911011111211311411
JIS671
191201211221
1
23
1
24
1
25
1
26
75129136131
.1
.

-

1

2
t-
94M1261A_

110AJ5
I
CHECKPOOR
CONTACT
IN
CONNECTORS
.

Turn
ignition
switch
to
OFF
.

CHECK
:
Is
there
poor
contact
in
connector
between

ABSCM&HlU
and
G
sensor?
<
Ref
.
to
FORE-

WORD
[T3C1]
.*10
>

,mss
:
Repair
connector
.

No
:
Go
to
step
10AJ6
.

diagnosis
still
bung
output?

,mss
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
10AJ7
.
(
10AJ6
I
CHECK
ABSCM&H/U
.

1)
Connect
all
connectors
.

2)
Erasethe
memory
.

3)
Perform
inspection
mode
.

4)
Read
out
the
trouble
code
.

CHECK
:
Is
the
same
trouble
code
as
in
the
current

10AJ7
CHECK
ANY

I
APPEARANCE

.THER
TROUBLE
CODES

CHECK
;
Are
other
trouble
codes
being
output?

vES
:
Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

No
:
A
temporary
poor
contact
.

10AJ8
I
pUT
HAR
NESS
AND
GROUND
HARNE
SS
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
ABSCM&H/U
.

3)
Measure
resistance
between
ABSCM&H/U
connector

terminals
.

Connector
&
terminal

(F49)
No
.
30
-
No
.
28
:

CHECK
:
Is
theresistance
between
4
.3
and
4
.9
kS2?

Go
to
step
f0AJ9
.

No
:
Repair
harness/connector
between
G
sensor
and

ABSCM&H/U
.

206

BRAKES
[ABS
5
.31
TYPE]
[T10AJ11]
4-4d

10
.
Diagnostics
Chart
withSelect
Monitor

B4M0915

Front
\

0

84M0917A

0

Front

r
--

B4M0918A

1
10AJ9
I
CHECKG
SENSOR
.

1)
Remove
console
box
.

2)
Remove
G
sensorfrom
vehicle
.

3)
Connect
connector
to
G
sensor
.

4)
Connect
connector
to
ABSCM&H/U
.

5)
Turn
ignition
switch
to
ON
.

6)
Measure
voltage
between
G
sensor
connector
termi-

nals
.

Connector
&
terminal
(P11)
No
.
2
(+)
-
No
.
1
(-)
:

CHECK
;
Is
thevoltage
between
2
.1
and
2
.5
V
when
G

sensor
is
horizontal?

vES
:
Go
to
step
10AJ10
.

No
:
Replace
G
sensor
.
I
10AJ10
1
CHECK
G
SENSOR
.

Measure
voltage
between
G
sensor
connector
terminals
.

Connector
&
terminal
(P11)
No
.
2
(+)
-
No
.
1
(-)
:

CHECK
;
Is
thevoltage
between
3
.7
and
4
.1
V
when
G

sensor
is
inclined
forwards
to
90°?

Go
to
step
10AJ11
.

No
:
Replace
G
sensor
.

I10AJ77
(CHECK
G
SENSOR
.

Measure
voltage
between
G
sensor
connector
terminals
.

Connector
&
terminal
(P11)
No
.
2
(+)
-
No
.
1
(
)
:

CHECK
:
Is
thevoltage
between
0
.5
and
0
.9
V
when
G

sensor
is
inclined
backwards
to
90°?

,rES
:
Go
to
step
10AJ12
.

No
:
Replace
G
sensor
.

207

BRAKES
[ABS
5
.31
TYPE]
[T11A0]
4-4d

11
.
General
Diagnostics
Table

11
.
General
Diagnostics
Table

A
:
SYMPTOMSAND
PROBABLE
CAUSES

Symptom
Probable
faulty
units/parts

9
ABSCM&H/U
(solenoid
valve)
e
ABS
sensor
e
Brake
(caliper
&
piston,
pads)
Vehicle
pulls
to
either
side
.
*
Wheel
alignment
e
Tire
specifications,
tire
wear
and
air
pressures
9
Incorrect
wiringorpiping
connections
Vehicle
instability
during
braking
9Road
surface(uneven,
camber)

e
ABSCM&H/U
(solenoid
valve)
e
ABS
sensor
Vehicle
spins
.
*
Brake
(pads)
9
Tire
specifications,
tire
wear
and
air
pressures
9
Incorrect
wiring
orpiping
connections

9
ABSCM&H/U
(solenoid
valve)
Brake
(pads)
Long
braking/stopping
distance
*
Air
in
brake
line
9Tire
specifications,
tire
wear
and
air
pressures
a
Incorrect
wiringor
piping
connections

9
ABSCM&H/U
(solenoid
valve,
motor)
Wheel
locks
.
*
ABS
sensor
*
Incorrect
wiringorpiping
connections

9
ABSCM&H/U
(solenoidvalve)9
ABS
sensor
Master
cylinder
Brake
dragging
*
Brake
(caliper
8
piston)
Parking
brake
Poor
braking
*
Axle
&
wheels
Brake
pedal
play

Long
brake
pedal
stroke
9
Air
in
brake
line
Brake
pedal
play

*
Suspension
play
or
fatigue
(reduced
damping)
Vehicle
pitching
*
Incorrect
wiring
or
piping
connections
Road
surface
(uneven)

9
ABSCM&H/U
(solenoid
valve)
9
ABS
sensor

Unstable
or
uneven
braking
~
Brake
(caliper
&
piston,
pads)
~Tire
specifications,
tire
wear
and
air
pressures
e
Incorrect
wiring
orpiping
connections
*
Road
surface
(uneven)

Excessive
pedal
vibration
*
Incorrect
wiring
or
piping
connections
Road
surface
(uneven)

*
ABSCM&H/U
(mount
bushing)
Noise
from
ABSCM&H/U
*
ABS
sensor
Brake
piping

a
RBSCM&
H/U
(mount
bushing)
e
ABS
sensor

Vibration
and/or
noise
(while
*
Master
cylinder

driving
on
slippery
roads)
Noise
from
front
of
vehiclee
Brake
(caliper
&
piston,
pads,
rotor)
Brake
piping
e
Brake
booster
&
check
valve
*
Suspension
playor
fatigue

e
ABS
sensor
a
Brake
(caliper
&
piston,
pads,
rotor)
Noise
from
rear
of
vehicle
9
Parking
brake
Brake
piping
e
Suspension
playor
fatigue

209

1. Engine Cooling System
Trouble Possible cause Corrective action
Over-heatinga. Insufficient engine coolantReplenish engine coolant, inspect for leakage, and
repair.
b. Loose timing belt Repair or replace timing belt tensioner.
c. Oil on drive belt Replace.
d. Malfunction of thermostat Replace.
e. Malfunction of engine coolant pump Replace.
f. Clogged engine coolant passage Clean.
g. Improper ignition timingInspect and repair ignition control system.

h. Clogged or leaking radiator Clean or repair, or replace.
i. Improper engine oil in engine coolant Replace engine coolant.
j. Air/fuel mixture ratio too leanInspect and repair fuel injection system.

k. Excessive back pressure in exhaust system Clean or replace.
l. Insufficient clearance between piston and cylinder Adjust or replace.
m. Slipping clutch Repair or replace.
n. Dragging brake Adjust.
o. Improper transmission oil Replace.
p. Defective thermostat Replace.
q. Malfunction of electric fanInspect radiator fan relay, engine coolant temperature
sensor or radiator motor and replace there.
Over-coolinga. Atmospheric temperature extremely low Partly cover radiator front area.
b. Defective thermostat Replace.
Engine coolant
leaks.a. Loosened or damaged connecting units on hoses Repair or replace.
b. Leakage from engine coolant pump Replace.
c. Leakage from engine coolant pipe Repair or replace.
d. Leakage around cylinder head gasket Retighten cylinder head bolts or replace gasket.
e. Damaged or cracked cylinder head and crankcase Repair or replace.
f. Damaged or cracked thermostat case Repair or replace.
g. Leakage from radiator Repair or replace.
Noisea. Defective drive belt Replace.
b. Defective radiator fan Replace.
c. Defective engine coolant pump bearing Replace engine coolant pump.
d. Defective engine coolant pump mechanical seal Replace engine coolant pump.
20
2-5DIAGNOSTICS
1. Engine Cooling System

11) Install front exhaust pipe and center exhaust pipe.
12) Connect hoses, connectors and cables.
(1) Connect the following hoses.
Fuel delivery hose, return hose and evaporation
hose
Heater inlet and outlet hoses
Brake booster vacuum hose
(2) Connect the following connectors.
Engine ground terminal
Engine harness connectors
Front oxygen sensor connector
Rear oxygen sensor connector
Alternator connector and terminal
A/C compressor connectors (With A/C)
(3) Connect the following cables.
Accelerator cable
Cruise control cables (With cruise control)
Clutch cable
Clutch release spring
CAUTION:
After connecting each cable, adjust them.
B2M1168
13) Install air intake system.
(1) Install air cleaner element.
(2) Install air intake duct with air cleaner upper cover.
B2M0030
(3) Connect connector to mass air flow sensor.
G2M0270
14) Install A/C pressure hoses. (With A/C)

CAUTION:
Use new O-rings.
Tightening torque:
25±7 N⋅m (2.5±0.7 kg-m, 18.1±5.1 ft-lb)
24
2-11SERVICE PROCEDURE
2. Engine

2. SIDE OIL SEAL
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to“N”.
3) Release the parking brake.
4) Loosen both wheel nuts.
5) Jack-up the vehicle and support it with rigid racks.
6) Remove wheels.
7) Remove rear exhaust pipe and muffler.

G3M0038
8) Remove the DOJ of rear drive shaft from rear differen-
tial.
(1) Remove the A.B.S. sensor cable clamp and park-
ing brake cable clamp from bracket.
G3M0039
(2) Remove the A.B.S. sensor cable clamp from the
trailing link.
G3M0040
(3) Remove the A.B.S. sensor cable clamp and park-
ing brake cable guide from the trailing link.
G3M0041
(4) Remove the rear stabilizer link.
16
3-4SERVICE PROCEDURE
2. Rear Differential

G4M0504
4) Remove brake hose clamp and disconnect brake hose
from strut. Attach brake hose to body using gum tape.
5) Scribe an alignment mark on the camber adjusting bolt
which secures strut to housing.
6) Remove bolt securing the A.B.S. sensor harness.
(A.B.S. equipped models.)
G4M0505
7) Remove two bolts securing housing to strut.
CAUTION:
While holding head of adjusting bolt, loosen self-lock-
ing nut.
8) Remove the three nuts securing strut mount to body.
G4M0506
B: DISASSEMBLY
1) Using a coil spring compressor, compress coil spring.
G4M0507
2) Using ST, remove self-locking nut.
ST 927760000 STRUT MOUNT SOCKET
3) Remove strut mount, upper spring seat and rubber seat
from strut.
4) Gradually decreasing compression force of spring
compressor, and remove coil spring.
5) Remove dust cover and helper.
22
4-1SERVICE PROCEDURE
4. Front Strut

G4M0511
7) Pull the piston rod fully upward, and install rubber seat
and spring seat.
NOTE:
Ensure that upper spring seat is positioned with“OUT”
mark facing outward.
8) Install strut mount to the piston rod, and tighten the
self-locking nut temporarily.
CAUTION:
Be sure to use a new self-locking nut.
G4M0507
9) Using hexagon wrench to prevent strut rod from turning,
tighten self-locking nut with ST.
Tightening torque:
54±5 N⋅m (5.5±0.5 kg-m, 39.8±3.6 ft-lb)
ST 927760000 STRUT MOUNT SOCKET
10) Loosen the coil spring carefully.
E: INSTALLATION
1) Install strut mount at upper side of strut to body and
tighten with nuts.
Tightening torque:
20±6 N⋅m (2.0±0.6 kg-m, 14.5±4.3 ft-lb)
2) Connect housing to lower side of strut.
3) Position aligning mark on camber adjusting bolt with
aligning mark on lower side bracket of strut.
CAUTION:

While holding head of adjusting bolt, tighten self-
locking nut.

Be sure to use new self-locking nut.
Tightening torque:
152±20 N⋅m (15.5±2.0 kg-m, 112±14 ft-lb)
4) Install A.B.S. sensor harness to strut. (A.B.S. equipped
models.)
Tightening torque:
152±20 N⋅m (15.5±2.0 kg-m, 112±14 ft-lb)
5) Install brake hose at lower side of strut with clamp.
G4M0503
6) Install union bolts which secure brake caliper to brake
hose.
Tightening torque:
18±3 N⋅m (1.8±0.3 kg-m, 13.0±2.2 ft-lb)
CAUTION:
Be sure to bleed air from brake system.
7) Install wheels.
NOTE:
Check wheel alignment and adjust if necessary.
25
4-1SERVICE PROCEDURE
4. Front Strut