1996 SUBARU LEGACY relay

A: LO MODE OPERATION
CONDITION:
Condition (1) :
Engine coolant temperature is below 89°C (192°F).
A/C switch is turned ON.
Vehicle speed is below 10 km/h (6 MPH).
Condition (2) :
Engine coolant temperature is above 95°C (203°F).
A/C switch is turned OFF.
Vehicle speed is below 10 km/h (6 MPH).
TROUBLE SYMPTOM:
Radiator sub fan does not rotate at LO speed under
conditions (1) and (2) above.
1. Check fuse and power supply.
OK
Not OK
Melted fuse,repair the shorted part of the circuit
,replace fuse.
2. Check harness connector between fuse and
relay box, and sub fan motor.
OK
Not OK
Repair or replace wiring harness.
3. Check ground circuit of sub fan motor.
OK
Not OK
Repair or replace wiring harness.
4. Check sub fan motor.
OK
Not OK
Replace sub fan motor.
Refer to 2-7 On-Board Diagnostics II System.




31
2-5DIAGNOSTICS
3. Radiator Sub Fan (With A/C model only)

B2M0427A
1. CHECK FUSE AND POWER SUPPLY.
1) Check fuse No. 13.
2) Turn ignition switch to ACC.
3) Measure voltage between fuse and relay box, and body.
Connector & terminal / Specified voltage:
(F40) No. 3—Body / 10 V, or more
B2M0377A
2. CHECK HARNESS CONNECTOR BETWEEN FUSE
AND RELAY BOX, AND SUB FAN MOTOR.
1) Turn ignition switch to OFF.
2) Disconnect connectors from fuse and relay box, and
sub fan motor.
3) Measure resistance of harness connector between fuse
and relay box, and sub fan motor.
Connector & terminal / Specified resistance:
(F40) No. 3—(F16) No. 2 / 10Ω, max.
B2M0378A
3. CHECK GROUND CIRCUIT OF SUB FAN MOTOR.
Measure resistance between sub fan motor connector and
body.
Connector & terminal / Specified resistance:
(F16) No. 1—Body / 10Ω, max.
B2M0372A
4. CHECK SUB FAN MOTOR.
1) Disconnect connector from sub fan motor.
2) Connect battery positive (+) terminal to terminal No. 2
and connect terminal No. 1 to ground. Ensure that fan
rotates at LO speed.
32
2-5DIAGNOSTICS
3. Radiator Sub Fan (With A/C model only)

B: HI MODE OPERATION
CONDITION:
Condition (1) :
Engine coolant temperature is below 89°C (192°F).
A/C switch is turned ON.
Vehicle speed is over 20 km/h (12 MPH).
Condition (2) :
Engine coolant temperature is above 95°C (203°F).
A/C switch is turned OFF.
Vehicle speed is over 20 km/h (12 MPH).
Condition (3) :
Engine coolant temperature is above 95°C (203°F).
A/C switch is turned ON.
TROUBLE SYMPTOM:
Radiator sub fan does not rotate at HI speed under con-
ditions (1), (2) and (3) above.
1. Check operation of sub fan motor LO mode.
OK
Not OK
Check LO mode operation.
2. Check power supply to sub fan relay-2.
OK
Not OK
Melted fuse (in A/C relay holder),repair the
shorted part of the circuit,replace fuse.
3. Check sub fan relay-2.
OK
Not OK
Replace sub fan relay-2.
4. Check harness connector between sub fan
relay-2 and sub fan motor.
OK
Not OK
Repair or replace wiring harness.
5. Check ground circuit of sub fan motor.
OK
Not OK
Repair or replace wiring harness.
6. Check sub fan motor.
OK
Not OK
Replace sub fan motor.
Refer to 2-7 On-Board Diagnostics II System.






33
2-5DIAGNOSTICS
3. Radiator Sub Fan (With A/C model only)

1. CHECK OPERATION OF SUB FAN MOTOR LO
MODE.
Check that radiator sub fan rotates at LO speed under each
condition described under LO mode operation. [K3A0].>
B2M0379A
2. CHECK POWER SUPPLY TO SUB FAN RELAY-2.
1) Turn ignition switch to OFF.
2) Disconnect connector from A/C relay holder.
3) Measure voltage between A/C relay holder connector
and body.
Connector & terminal / Specified voltage:
(F29) No. 1—Body / 1 V, max.
(F29) No. 2—Body / 1 V, max.
4) Turn ignition switch to ON.
5) Measure voltage between A/C relay holder connector
and body.
Connector & terminal / Specified voltage:
(F29) No. 1—Body / 10 V, or more
(F29) No. 2—Body / 10 V, or more
B2M0370A
3. CHECK SUB FAN RELAY-2.
1) Turn ignition switch to OFF.
2) Remove sub fan relay-2 from A/C relay holder.
3) Check continuity between terminals (indicated in table
below) when terminal (1) is connected to battery and ter-
minal (3) is grounded.
When current flows.Between terminals (2)
and (4)Continuity exists.
When current does not
flow.Between terminals (2)
and (4)Continuity does not
exist.
Between terminals (1)
and (3)Continuity exists.
34
2-5DIAGNOSTICS
3. Radiator Sub Fan (With A/C model only)

B2M0397A
4. CHECK HARNESS CONNECTOR BETWEEN SUB
FAN RELAY-2 AND SUB FAN MOTOR.
1) Disconnect connectors from sub fan relay-2 and sub fan
motor.
2) Measure resistance of harness connector between sub
fan relay-2 and sub fan motor.
Connector & terminal / Specified resistance:
(F29) No. 4—(F16) No. 3 / 10Ω, max.
B2M0398A
5. CHECK GROUND CIRCUIT OF SUB FAN MOTOR.
Measure resistance between sub fan motor connector and
body.
Connector & terminal / Specified resistance:
(F16) No. 1—Body / 10Ω, max.
B2M0368A
6. CHECK SUB FAN MOTOR.
1) Disconnect connector from sub fan motor.
2) Connect battery positive (+) terminal to terminals No. 2
and No.3, and connect terminal No. 1 to ground. Ensure
that fan rotates at HI speed.
35
2-5DIAGNOSTICS
3. Radiator Sub Fan (With A/C model only)

G6M0095
16. Main Relay
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B5M0024A
2) Remove lower cover and then disconnect connectors.
3) Lower transmission control module.
4) Remove the front pillar lower trim.

5) Remove fuse box mounting nuts.
6) Lower fuse box.
7) Remove fuse box mounting bracket.
G2M0438
8) Remove screw which retains bracket of main relay
1
and fuel pump relay
2.
9) Disconnect connector from main relay.
G2M0438
10) Installation is in the reverse order of removal.


1Main relay


2Fuel pump relay
30
2-7SERVICE PROCEDURE
16. Main Relay

G6M0095
17. Fuel Pump Relay
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B5M0024A
2) Remove lower cover and then disconnect connectors.
3) Lower transmission control module.
4) Remove the front pillar lower trim.

5) Remove fuse box mounting nuts.
6) Lower fuse box.
7) Remove fuse box mounting bracket.
G2M0438
8) Remove fuel pump relay from main relay and fuel pump
relay mounting bracket.
9) Disconnect connector from fuel pump relay.
G2M0438
10) Installation is in the reverse order of removal.


1Main relay


2Fuel pump relay
31
2-7SERVICE PROCEDURE
17. Fuel Pump Relay

6. Control Valve Body
The control valve is composed of parts which are accu-
rately machined to a high degree and should be handled
carefully during disassembly and assembly. As these parts
are similar in shape, they should be arranged in neat order
on a table after disassembly so that they can be easily
installed to their original positions. Spring loaded parts
should be also handled carefully, as springs may jump out
of place when the parts are disassembled or removed.
Extreme care should be taken so as not to drop valves on
the floor. Before assembling, the parts and valves should
be dipped in a container filled with the ATF. Make sure that
the valves are clean and free from any foreign material
before assembly. Torque specifications should also be
observed.
G3M0899

1Lock-up control sleeve


2Lock-up control plug


3Lock-up control valve


4Pilot valve


5Pressure regulator valve


6Pressure regulator plug


7Torque converter regulation valve


8Pressure regulator sleeve plug


9Accumulator control sleeve


10Accumulator control plug


11Shuttle duty shift valve


124-2 sequence valve


13Pressure modifier valve


14Shift valve B


154-2 relay valve


16Shift valve A


17Overrunning clutch control valve

18Overrunning clutch reducing valve


19Shuttle shift valve


20Manual valve


21Forward clutch control valve


221st reducing valve


233-2 timing valve


24Servo charger valve


25Pressure regulator spring


26Pressure modifier spring


27Modifier accumulator spring


28Pilot spring


29Accumulator control spring


30Shift B spring


31Shift A spring


32Shuttle shift spring


33Overrunning clutch control spring


344-2 sequence spring

354-2 relay spring


36Servo charger spring


373-2 timing spring


381st reducing spring


39Overrunning clutch reducing spring


40Torque converter regulator spring


41Lock-up control spring


42Shuttle duty shift spring
85
3-2SERVICE PROCEDURE
6. Control Valve Body