O2 sensor SUBARU LEGACY 1999 Service Repair Manual

1. EVALUATION
NOTE:
If part is faulty, its resistance value will be different
from the standard value indicated above.
Part name Terminal Resistance (W)
Vehicle speed sensor 1 17 Ð 18 450 Ð 650
Vehicle speed sensor 2 19 Ð 20 450 Ð 650
ATF temperature sensor 11 Ð 122,100 Ð 2,900/
20ÉC (68ÉF)
275 Ð 375/
80ÉC (176ÉF)
Torque converter turbine
speed sensor14 Ð 15 450 Ð 650
Shift solenoid 1 1 Ð 16 10 Ð 17
Shift solenoid 2 2 Ð 16 10 Ð 17
Duty solenoid A
(Line pressure solenoid)5Ð16 2.0Ð4.5
Duty solenoid B
(Lock-up solenoid)13Ð16 10Ð17
Duty solenoid D
(2-4 brake solenoid)9Ð16 2.0Ð4.5
Low clutch timing solenoid 3 Ð 16 10 Ð 16
2-4 brake timing solenoid 4 Ð 16 10 Ð 16
Duty solenoid C
(Transfer clutch solenoid)6Ð16 10Ð17
4. Shift Solenoid, Duty
Solenoid and Valve
A: REMOVAL
1) Clean transmission exterior.
2) Drain ATF completely.
NOTE:
Tighten ATF drain plug after draining ATF.
Tightening torque:
25
±2 N´m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
B3M1036A
3) Remove oil pan.
NOTE:
Drain oil into a container.
4) Disconnect solenoid and sensor connectors.
Remove connectors from clip and disconnect con-
nectors at 8 places.
B2M2263C
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
34
3-2[W3A1]SERVICE PROCEDURE
4. Shift Solenoid, Duty Solenoid and Valve

1. EVALUATION
NOTE:
If part is faulty, its resistance value will be different
from the standard value indicated above.
Part name Terminal Resistance (W)
Vehicle speed sensor 1 17 Ð 18 450 Ð 650
Vehicle speed sensor 2 19 Ð 20 450 Ð 650
ATF temperature sensor 11 Ð 122,100 Ð 2,900/
20ÉC (68ÉF)
275 Ð 375/
80ÉC (176ÉF)
Torque converter turbine
speed sensor14 Ð 15 450 Ð 650
Shift solenoid 1 1 Ð 16 10 Ð 17
Shift solenoid 2 2 Ð 16 10 Ð 17
Duty solenoid A
(Line pressure solenoid)5Ð16 2.0Ð4.5
Duty solenoid B
(Lock-up solenoid)13Ð16 10Ð17
Duty solenoid D
(2-4 brake solenoid)9Ð16 2.0Ð4.5
Low clutch timing solenoid 3 Ð 16 10 Ð 16
2-4 brake timing solenoid 4 Ð 16 10 Ð 16
Duty solenoid C
(Transfer clutch solenoid)6Ð16 10Ð17
4. Shift Solenoid, Duty
Solenoid and Valve
A: REMOVAL
1) Clean transmission exterior.
2) Drain ATF completely.
NOTE:
Tighten ATF drain plug after draining ATF.
Tightening torque:
25
±2 N´m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
B3M1036A
3) Remove oil pan.
NOTE:
Drain oil into a container.
4) Disconnect solenoid and sensor connectors.
Remove connectors from clip and disconnect con-
nectors at 8 places.
B2M2263C
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
34
3-2[W3A1]SERVICE PROCEDURE
4. Shift Solenoid, Duty Solenoid and Valve

5) Remove control valve body.
CAUTION:
When removing control valve body, be careful
not to interfere with transfer duty solenoid C
wiring.
NOTE:
Be careful because oil flows from valve body.
B3M1037
6) Remove oil strainer.
NOTE:
Be careful because oil flows from oil strainer.
B3M1038A
7) Remove solenoids and duty solenoids.
B3M1039A
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
B: INSTALLATION
1) Install 7 solenoids and ATF temperature sensor.
Tightening torque:
T: 8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1039B
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
2) Install oil strainer.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1038B
(A) Short bolt
(B) Middle bolt
(C) Long bolt
35
[W4B0]3-2SERVICE PROCEDURE
4. Shift Solenoid, Duty Solenoid and Valve

3) Install valve body to transmission case.
CAUTION:
When installing control valve body, be careful
not to interfere with transfer duty solenoid wir-
ing (brown).
NOTE:
Align manual valve connections.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1037A
(A) Short bolts
(B) Long bolts
4) Connect harness connectors at 8 places.
Connect connectors of same color, and secure
connectors to valve body using clips.
B2M2263C
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
5) Apply proper amount of liquid gasket (THREE
BOND Part No. 1217B) to the entire oil pan mat-
ing surface.
B3M1040A
6) Install oil pan.
Tightening torque:
4.9
±0.5 N´m (0.50±0.05 kg-m, 3.6±0.4 ft-lb)
B3M1036A
7) Add ATF and check level.
B3M1020A
36
3-2[W4B0]SERVICE PROCEDURE
4. Shift Solenoid, Duty Solenoid and Valve

5. Duty Solenoid C and
Transfer Valve Body
A: REMOVAL
1) Remove air intake duct and chamber. (Except
2200 cc California spec. vehicles)
<Ref. to 2-7 [W1A0].>
S6M0007
2) Remove air intake duct and cleaner case.
(2200 cc California spec. vehicles)
<Ref. to 2-7 [W1A0].> and <Ref. to 2-7 [W18A0].>
B2M2320
3) Remove pitching stopper.
B3M1042
4) Raise vehicle and drain ATF.
B3M1036A
5) Remove front exhaust pipe and center exhaust
pipe.
Disconnect oxygen sensor connector, and remove
exhaust pipe.
<Ref. to 2-9 [W1A0].> and <Ref. to 2-9 [W2A0].>
G3M0305
6) Remove propeller shaft.
<Ref. to 3-4 [W1B0].>
NOTE:
Before removing propeller shaft, scribe matching
marks on propeller shaft and rear differential cou-
pling.
G3M0782
37
[W5A0]3-2SERVICE PROCEDURE
5. Duty Solenoid C and Transfer Valve Body

7) Remove rear crossmember.
(1) Support transmission using a transmission
jack and raise slightly.
(2) Remove bolts and nuts as shown in Figure.
S2M0221
8) Remove vehicle speed sensor 1 (rear).
B3M1043
9) Remove extension and gasket.
(1) Remove select cable nut.
G3M0308
(2) Move gear select cable so that extension
bolts can be removed.
(3) Remove bolts.(4) Remove extension case.
NOTE:
Use a container to catch oil flowing from extension.
B3M1044
10) Disconnect duty solenoid C (transfer) connec-
tor.
11) Remove duty solenoid C (transfer) and trans-
fer valve body.
B3M1045A
B: INSTALLATION
1) Install duty solenoid C and transfer valve body.
(1) Install duty solenoid C and transfer valve
body.
Tightening torque:
T: 8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
(2) Connect duty solenoid C (transfer) connec-
tor.
B3M1045B
38
3-2[W5B0]SERVICE PROCEDURE
5. Duty Solenoid C and Transfer Valve Body

2) Install extension case to transmission case.
(1) Tighten 11 bolts.
Tightening torque:
25
±2 N´m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
(2) Install select cable.
Tightening torque:
14
±4 N´m (1.4±0.4 kg-m, 10.1±2.9 ft-lb)
G3M0308
3) Install vehicle speed sensor 1 (rear).
Tightening torque:
T: 7
±1 N´m (0.7±0.1 kg-m, 5.1±0.7 ft-lb)
B3M1043A
4) Install rear crossmember.
(1) Tighten bolts.
Tightening torque:
T1: 37
±10 N´m (3.8±1.0 kg-m, 27±7 ft-lb)
T2: 69
±15 N´m (7.0±1.5 kg-m, 51±11 ft-lb)
S2M0221B
(2) Lower and remove transmission jack.5) Install propeller shaft.
<Ref. to 3-2 [W1E0].>
NOTE:
Align matching marks on propeller shaft and rear
differential coupling.
G3M0782
6) Install front exhaust pipe and center exhaust
pipe.
<Ref. to 2-9 [W1A0].> and <Ref. to 2-9 [W2A0].>
G3M0305
7) Lower and remove jack.
8) Connect the following parts:
(1) Oxygen sensor connector
(2) Transmission harness connector
S2M0212A
39
[W5B0]3-2SERVICE PROCEDURE
5. Duty Solenoid C and Transfer Valve Body

10) Remove the oil cooler inlet and outlet pipes.
CAUTION:
When removing outlet pipes, be careful not to
lose balls and springs used with retaining
screws.
B3M1053A
2. SEPARATION OF EACH SECTION
1) Separation of torque converter clutch case and
transmission case sections
CAUTION:
IBe careful not to damage the oil seal and
bushing inside the torque converter clutch
case by the oil pump cover.
IBe careful not to lose the rubber seal.
NOTE:
Separate these cases while tapping lightly on the
housing.
B3M1055A
2) Separation of transmission case and extension
sections
(1) Remove vehicle speed sensor 1 (rear).
B3M1056A
(2) Separation of transmission case and exten-
sion case sections
B3M1057A
3. TRANSMISSION CASE SECTION
1) Remove the reduction driven gear.
(1) Straighten the staked portion, and remove
the lock nut.
NOTE:
Set the range selector lever to ªPº.
B3M1058A
(2) Using the ST1 and ST2, extract the reduc-
tion driven gear.
NOTE:
ST1 499737000 PULLER
ST2 899524100 PULLER SET
B3M0954A
48
3-2[W11B2]SERVICE PROCEDURE
11. Overall Transmission

6) Remove the oil pan.
NOTE:
Use a scraper to remove oil pan.
B3M1065A
7) Disconnect the harness connectors for the
solenoids, duty solenoids, ATF temperature sensor
and the ground cord.
B2M2263C
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
8) Remove the control valve body.
CAUTION:
When removing control valve body, be careful
not to interfere with transfer duty solenoid C
wiring.
B3M1037A
9) Remove vehicle speed sensor 2 (front) and
torque converter turbine speed sensor.
B3M1066A
10) Remove transmission harness.
B3M1067A
11) Remove the oil pump housing.
CAUTION:
Be careful not to lose the total end play adjust-
ing thrust washer.
B3M1068A
12) Remove 2-4 brake seal.
B3M1069A
50
3-2[W11B3]SERVICE PROCEDURE
11. Overall Transmission

2) Install the torque converter clutch case assem-
bly to the transmission case assembly, and secure
with six bolts and four nuts.
CAUTION:
When installing, be careful not to damage the
torque converter clutch case bushing and oil
seal.
Tightening torque:
41
±3 N´m (4.2±0.3 kg-m, 30.4±2.2 ft-lb)
B3M1055A
4. CONTROL VALVE AND OIL PAN
1) Install and route the transmission harness.
CAUTION:
Be careful not to damage the harness.
B3M1067A
2) Install the control valve assembly.
(1) Set the select lever in range ªNº.(2) Install the control valve by engaging the
manual valve and manual lever, then tighten the
17 bolts.
CAUTION:
Tighten the control valve mounting bolts
evenly.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1037A
(A) Short bolts
(B) Long bolts
3) Connect all connectors.
B2M2263C
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
4) Install the oil pan.
67
[W11C4]3-2SERVICE PROCEDURE
11. Overall Transmission