
PM-19
Brake Line
PERIODIC MAINTENANCE SERVICES
13.Brake Line
A: INSPECTION
1. BRAKE LINE
1) Check for scratches, swelling, corrosion, traces
of fluid leakage on the brake hoses or pipe joints.
2) Check the possibility of adjacent parts interfering
with brake pipes/hoses during driving, and loose
connections/clamps.
3) Check any trace of fluid leakage, scratches, etc.
on master cylinder, wheel cylinder and pressure
control valve.
NOTE:
•When the brake fluid level in the reservoir tank is
lower than specified limit, the brake warning light
on the combination meter will come on.
•Visually check the brake hose for damage. (Use
a mirror where it is difficult to see)
2. SERVICE BRAKE
1) Check the free play of brake pedal with pulling
up the force of less than 10 N (1 kgf, 2 lb).
Brake pedal free play (Pulling up direction of
pedal)
0.5 — 2.0 mm (0.02 — 0.08 in)
2) If the free play is out of specifications above, ad-
just the brake pedal as follows.
(1) Make sure the engine is off. (No vacuum is
applied to brake booster.)
(2) There should be play between brake boost-
er clevis and pin at brake pedal installing por-
tion. [Pulling up the brake pedal pad with a force
of less than 10 N (1 kgf, 2 lb) to a stroke of 0.5
to 2.0 mm (0.02 to 0.08 in).]
(3) If there is no free play between clevis pin
and clevis, turn brake switch adjusting nut until
the clearance between stopper and screw of
brake switch becomes 0.8 mm (0.031 in).
(1) Front brake hose
(2) Front brake pipe
(1) Rear brake pipe
(2) Rear brake hose
PM-00288
(2)
(1)
PM-00289(1)
(2)
(A) Pedal free play
(A) Brake switch
(B) Adjusting nut
(C) 0.8 mm (0.031 in)
(D) Stopper
(E) Clevis pin
(F) Clevis
(G) Pedal free play
(H) Lock nut
(I) Brake booster operating rod
(J) Play at pin
PM-00313
(A)
PM-00314
(G)
(A)(D)(E)
(B)
(C)
(F)
(J)(I)
(H)

PM-20
Brake Line
PERIODIC MAINTENANCE SERVICES
3) Check the pedal stroke.
While the engine is idling, depress the brake pedal
with a 500 N (51 kgf, 112 lb) load and measure the
distance between the brake pedal and steering
wheel. With the brake pedal released, measure the
distance between pedal and steering wheel again.
The difference between the two measured values
must be less than specified value. If the measured
value is more than specification, there is possibility
of entering air in hydraulic unit.
Brake pedal stroke A:
115 mm (4.5 in)/ 500 N (51 kgf, 112 kg) or less
4) Check to see if air is in the hydraulic brake line
by the feel of pedal operation. If air appears to exist
in the line, bleed it from the system.
5) Check for even operation of all brakes, using a
brake tester or by driving the vehicle for a short dis-
tance on a straight road.
3. BRAKE SERVO SYSTEM
1) With the engine off, depress the brake pedal
several times applying the same pedal force. Make
sure the travel distance should not change.
2) With the brake pedal depressed, start the en-
gine. Make sure the pedal should move slightly to-
ward the floor.
3) With the brake pedal depressed, stop the engine
and keep the pedal depressed for 30 seconds.
Make sure the pedal height should not change.
4) A check valve is incorporated into the vacuum
hose part. Disconnect the vacuum hose to inspect
function of check valve.
Make sure air flows from the booster end to engine
end but does not flow in the opposite direction in
the check valve.
5) Check the vacuum hose for cracks or other dam-
age.
NOTE:
When installing the vacuum hose on the engine
and brake booster, do not use soapy water or lubri-
cating oil on their connections.
6) Check the vacuum hose to make sure it is tightly
secured.
(A) Steering wheel
(B) Toe board
PM-00045(B)
(A)
= A
1
12
2
(A) Vacuum hose
(B) Check valve
(C) Engine side
(D) Brake booster side

PM-23
Parking Brake
PERIODIC MAINTENANCE SERVICES
16.Parking Brake
A: INSPECTION
Inspect the brake linings and disc rotor of both
sides of the rear brake at the same time by remov-
ing disc rotor.
1) Inspect the brake shoes for damage or deforma-
tion and check the brake linings for wear.
NOTE:
Always replace both primary and secondary brake
shoes for the left and right wheels at the same time.
Thickness of brake lining (except for back metal):
Standard: 4.0 mm (0.157 in)
Wear limit: 1.5 mm (0.059 in)
2) Check the inside of disk rotor for wear, dents or
other damage. If the inside surface of dick rotor is
streaked, correct the surface with emery cloth
(#200 or more). If it is unevenly worn or tapered,
correct or replace it.
Brake drum inside diameter:
Standard: 210 mm (8.26 in)
Wear limit: 211 mm (8.30 in)
3) If the deformation or wear of back plate, shoe,
etc. is noticeable, replace them.
4) When the shoe return spring tension is exces-
sively weakened, replace it.
5) Check whether the parking brake pedal is at the
predetermined number of notches (5 to 6 notches).
B: ADJUSTMENT
1) Remove the rear tire and release the parking brake.
2) Remove the cover (rubber) installed on the disc rotor.
3) Turn the disc rotor so that the service hole is di-
rectly below.
4) Turn the adjuster toward arrow mark (upward)
until it is locked slightly, by using flat-tip screwdriver
as shown in the figure.
5) Turn back (downward) the adjuster several notch-
es until the brake pedal no longer has any drag.
6) Install the cover (rubber) in original position correctly.
7) Install the rear tires.
8) Adjust so that the parking brake pedal is at the
predetermined number of notches (5 to 6 notches).
(A) Forward
(B) Brake shoe (Primary side)
(C) Brake shoe (Secondary side)
(A) Inside diameter
(B) Disc
PM-00317
(A)
(B)(C)
PM-00055
(A)
(B)
(A) Adjuster
(B) Disc rotor
PM-00290
PM-00291
(A)(B)

5AT-77
Oil Pump Cover
AUTOMATIC TRANSMISSION
31.Oil Pump Cover
A: REMOVAL
1) Remove the transmission assembly from vehicle
body.
2) Pull out the torque converter assembly.
3) Remove the transmission harness connector
from stay.
4) Remove the oil charge pipe.
5) Remove the ATF filter inlet and outlet pipes.
6) Separate the converter case and transmission
case.
7) Remove the oil pump cover mounting bolt, and
then separate the oil pump cover from the AT main
case by lightly tapping with plastic hammer.
B: INSTALLATION
1) Secure the oil pump cover.
Tightening torque:
41 N·m (4.2 kgf-m, 30.4 ft-lb)
2) Install the converter case assembly to the trans-
mission case assembly.
3) Install the transmission harness connector to the
stay.
4) Install the ATF filter pipe.
5) Install the oil charge pipe together with an O-
ring.
6) Install the torque converter assembly.
sembly.>
7) Install the transmission assembly to the vehicle.
C: DISASSEMBLY
1. FRONT BRAKE
1) Remove the snap ring.
2) Remove the retainer plate, drive plate and driven
plate.
AT-01976
AT-01976
AT-01980

5AT(diag)-14
Transmission Control Module (TCM) I/O Signal
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Inhibitor switch 4 input B55 13
Ignition switch ON, “P”
range4.0 — 5.0 V
—
Ignition switch ON, “D”
rangeLess than 1.5 V
Control valve commu-
nication lineB55 12 — — —
Back-up light relay
outputB55 11
Ignition switch ON, “R”
range1.5 V90 — 110 Ω
(ATF tempera-
ture 25°C
(77°F))
Ignition switch ON, other
than “R” range
Pow er s up p ly
voltage
Ignition power supply B55 10Ignition switch ONPow er s up p ly
voltage—
Ignition switch OFF Approx. 0 V
AW D s o le n oi d o u tp u t B 5 5 2 3
Engine ON, “P” range or
“N” range, accelerator
OFF
Approx. 0 V3 — 9 Ω(ATF
temperature
20°C (68°F))
Driving fre-
quency 750 —
850 HzEngine ON, “D” range,
accelerator OFF, brake
ON
Approx. 2.0 —
3.0 V
Tu r b i n e s p e e d s e n s o r
2 inputB55 22
2nd of manual mode,
turbine speed sensor is
2,000 rpm (Read from
Subaru Select Monitor)
Approx. 1,300
— 1,500 rpm
Use the Subaru
Select Monitor.
4th of manual mode, tur-
bine speed sensor is
2,000 rpm (Read from
Subaru Select Monitor)
Approx. 1,900
— 2,100 rpm—Use the Subaru
Select Monitor.
Control GND B55 21 Always Approx. 0 V —
Inhibitor switch 3
open circuit monitor
input
B55 20
Ignition switch ON, “D”
range4.0 — 5.0 V
—
Ignition switch ON, “R”
rangeLess than 1.5 V
PN signal output B55 19
Ignition switch ON,
Other than “P” range or
“N” range
Pow er s up p ly
voltage—
ECM should be
connected cor-
rectly.
Ignition switch ON, “P”
range or “N” range0 — 1.0 V —
ItemConnector
No.
Te r m i n a l
No.Measuring condition Measured value
Resistance
between termi-
nal and chassis
ground
Remarks

5AT(diag)-16
Subaru Select Monitor
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
•A list of the support data is shown in the following table.
NOTE:
For details concerning operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MAN-
UAL”.
Item Display Unit of measure
Engine speed signal Engine speed rpm
Battery voltage Battery Voltage V
Accelerator pedal position sensor Acceleration opening angle %
Fr o nt veh ic l e sp e ed se n so r s ig n al Fr o n t W h ee l S p e ed km/ h
Gear position Gear Position —
Tu r b i n e s p e e d s e n s o r s i g n a l Tu r b i n e R e v o l u t i o n S p e e d r p m
Rear vehicle speed sensor signal Rear Wheel Speed km/h
ATF temperature sensor 1 signal ATF Temp. °C
ATF temperature sensor 2 signal ATF Temp. 2 °C
Tu r b i n e s p e e d s e n s o r 1 s i g n a l Tu r b i n e R e v o l u t i o n S p e e d 1 r p m
Tu r b i n e s p e e d s e n s o r 2 s i g n a l Tu r b i n e R e v o l u t i o n S p e e d 2 r p m
High & low reverse clutch solenoid indicator current H&LR/C Solenoid Current A
Direct clutch solenoid indicator current D/C Solenoid Current A
Fr o nt b rake so l en oi d in di c at o r c u rr e n t F / B S o l en o id Cur r e nt A
Input clutch solenoid indicator current I/C Solenoid Current A
Line pressure solenoid indicator current P/L Solenoid Current A
Lock-up solenoid indicator current L/U Solenoid Current A
Tr a n s f e r s o l e n o i d i n d i c a t o r c u r r e n t A W D S o l e n o i d C u r r e n t A
High & low reverse clutch solenoid target oil pressure H&LR/C Solenoid Target Pressure kPa
Direct clutch solenoid target oil pressure D/C Solenoid Target Pressure kPa
Fr o nt b rake so l en oi d ta r g et o il pr e ss ur e F / B S o l en o id Ta r g et P r es su r e kPa
Input clutch solenoid target oil pressure I/C Solenoid Target Pressure kPa
Line pressure solenoid target oil pressure P/L Solenoid Target Pressure kPa
Lock-up solenoid target oil pressure L/U Solenoid Target Pressure kPa
Tr a n s f e r s o l e n o i d t a r g e t o i l p r e s s u r e A W D S o l e n o i d Ta r g e t P r e s s u r e k P a
Ignition switch Ignition SW ON Input or OFF Input
Tip signal Tip Mode SW ON or OFF
Cruise control ON signal Cruise Control Signal ON or OFF
Tip down shift signal Down SW ON or OFF
Stop light switch signal Stop Light SW ON or OFF
Tip up shift signal Up SW ON or OFF
Drive range signal D Range ON or OFF
Reverse range signal R Range ON or OFF
Diagnosis light output signal Diagnosis Lamp ON or OFF
AT F t e m p e r a t u r e l a m p s i g n a l AT F Te m p e r a t u r e L a m p O N o r O F F
Shift lock solenoid signal Shift Lock Solenoid ON or OFF
Par king range signal P range ON or OFF
P/N range output signal P/N Signal ON or OFF
Neutral range signal N range ON or OFF
Inhibitor switch 1 input signal Inhibitor SW1 High or Low
Inhibitor switch 2 input signal Inhibitor SW2 High or Low
Inhibitor switch 3 input signal Inhibitor SW3 High or Low
Inhibitor switch 4 input signal Inhibitor SW4 High or Low
Inhibitor switch 3 monitor input signal Inhibitor SW3 Monitor High or Low
Backup light relay output signal Back-up light relay ON or OFF
High & low reverse clutch oil pressure switch input signal H&LR/C Oil Pressure SW ON or OFF
Direct clutch oil pressure switch input signal D/C Oil Pressure SW ON or OFF
Fr o nt b rake oi l pr e ss ur e swi tc h i n pu t si gn a l Fr / B Oi l P r e ss ur e S W ON or OF F
Input clutch oil pressure switch input signal I/C Oil Pressure SW ON or OFF
Low coast brake oil pressure switch input signal LC/B Oil Pressure SW ON or OFF
Low coast brake solenoid input signal LC B Solenoid ON or OFF

5AT(diag)-30
List of Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
P0957Backup Light Relay Cir-
cuit Low
Back-up relay output circuit is
open, shorted or relay OFF mal-
function
dure with Diagnostic Trouble Code (DTC).>
P0958Backup Light Relay Out-
put Circuit High
Back-up relay output circuit is
open, shorted or relay ON mal-
function
cedure with Diagnostic Trouble Code (DTC).>
P1601TCM Data Communica-
tion Failure
Communication Failure between
TCM and Memory Box
dure with Diagnostic Trouble Code (DTC).>
P1706
AT Ve h i c l e S p e e d S e n -
sor Circuit Malfunction
(Rear Wheel)
Rear wheel speed sensor is faulty
or input circuit, ground, power
supply is open or shorted.
TION (REAR WHEEL), Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
P1707AT A W D S o l e n o i d V a l v e
Circuit Malfunction
AWD solenoid circuit malfunction
or AWD solenoid body malfunc-
tion
Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
P1710
To r q u e C o n v e r t e r Tu r -
bine 2 Speed Signal Cir-
cuit 2 Malfunction
To r q u e c o n v e r t e r s e n s o r 2 m a l -
function, input circuit, ground,
power open, short circuit
CIRCUIT 2 MALFUNCTION, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>
P1716AT F Te m p . S e n s o r 2 C i r -
cuit Low
AT F t e m p e r a t u r e s e n s o r 2 m a l -
function, or open input signal cir-
cuit
dure with Diagnostic Trouble Code (DTC).>
P1717AT F Te m p . S e n s o r 2 C i r -
cuit High
AT F t e m p e r a t u r e s e n s o r 2 m a l -
function, short input signal circuit
dure with Diagnostic Trouble Code (DTC).>
P1718AT C A N C o m m u n i c a t i o n
Circuit
CAN communication line bus off
is open, EUM short circuit, ABS/
VDCCM, integrated CU malfunc-
tion
dure with Diagnostic Trouble Code (DTC).>
P1798 Gear 1 Engine Brake
Malfunction of clutch oil pressure
related to 1st engine brake, sole-
noid current malfunction
Diagnostic Trouble Code (DTC).>
P1799 Interlock
Malfunction of clutch oil pressure
which emit interlock, solenoid
current malfunction
Tr o u b l e C o d e ( D T C ) . >
P1817SPORT Mode Switch
Circuit (Manual Switch)
Manual mode switch is open or
shorted, or switch malfunction
Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
P1840
Tr a n s m i s s i o n F l u i d P r e s -
sure Sensor/Switch A
Circuit
Fr/B oil pressure switch is open or
shorted, or switch malfunction
CIRCUIT, Diagnostic Procedure with Diagnostic
Tr o u b l e C o d e ( D T C ) . >
P1842
Tr a n s m i s s i o n F l u i d P r e s -
sure Sensor/Switch C
Circuit
I/C oil pressure switch is open or
shorted, or switch malfunction.
CIRCUIT, Diagnostic Procedure with Diagnostic
Tr o u b l e C o d e ( D T C ) . >
P1843
Tr a n s m i s s i o n F l u i d P r e s -
sure Sensor/Switch D
Circuit
D/C oil pressure switch is open or
shorted, or switch malfunction.
CIRCUIT, Diagnostic Procedure with Diagnostic
Tr o u b l e C o d e ( D T C ) . >
P1844
Tr a n s m i s s i o n F l u i d P r e s -
sure Sensor/Switch E
Circuit
H&LR/C oil pressure switch is
open or shorted, or switch mal-
function.
CIRCUIT, Diagnostic Procedure with Diagnostic
Tr o u b l e C o d e ( D T C ) . >
DTC Item Content of diagnosis Reference target

5AT(diag)-44
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
E: DTC P0719 TORQUE CONVERTER/BRAKE SWITCH “B” CIRCUIT LOW
DTC DETECTING CONDITION:
Brake switch malfunction, open input signal circuit
TROUBLE SYMPTOM:
Brake down control is not operated at SPORT mode.
WIRING DIAGRAM:
AT-03287
STOP LIGHTSWITCH
B65
BODY INTEGRATEDUNIT
B280A:
B281B:
B23
A20A30
B159
213489765
2
1
43
TCMB54
BATTERY
MAIN SBF SBF-2
NO.8
E
87654321
212220191615141312111091718282726252423
B281B:
87654321
2223212019161514131211109173018292827262524
B280A:
B54
12789563410 11 1219 20 2113 14 15 16 17 18222324
B65
1234