SUBARU LEGACY 1996 Service Repair Manual

G3M0723
52. FUNCTION MODE: F00
—MODE DISPLAY—
SPECIFIED DATA:
Data at the left should be indicated.
Probable cause (if outside“specified data”)
1. Communication failure
(No communication method can be confirmed
with power ON.)
(1)Check loose or poor connectors, or
shortcircuit.
(2) Check type of cartridge.
2. Vehicle types cannot be identified (due to
communication failure).Check improper cartridge.
Replace with proper one.
OBD0673
53. FUNCTION MODE: F01
—BATTERY VOLTAGE (VB)—
CONDITION:
(1) Ignition switch ON
(2) Engine idling after warm-up
SPECIFIED DATA:
(1) 12±1 V
(2) 13±1 V
1. BatteryCheck battery voltage and specific gravity of
electrolyte.
2. Charging system(1)Measure regulating voltage under no loads.
(2) Check generator (as a single unit).
53
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

G3M0725
54. FUNCTION MODE: F02
—VEHICLE SPEED SENSOR 1 (VSP1)—

F02: Vehicle speed is indicated in mile per hour (m/h).

F03: Vehicle speed is indicated in kilometer per hour
(km/h).
G3M0726
55. FUNCTION MODE: F04
—VEHICLE SPEED SENSOR 2 (VSP2)—

F04: Vehicle speed is indicated in mile per hour (m/h).

F05: Vehicle speed is indicated in kilometer per hour
(km/h).
G3M0727
56. FUNCTION MODE: F06
—ENGINE SPEED (EREV)—
G3M0728
57. FUNCTION MODE: F07
—ATF TEMPERATURE SENSOR (ATFT)—

F07: ATF temperature is indicated in“deg F”.

F08: ATF temperature is indicated in“deg C”.
G3M0935
58. FUNCTION MODE: F09
—THROTTLE POSITION SENSOR (THV)—
54
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

G3M0730
59. FUNCTION MODE: F10
—GEAR POSITION (GEAR)—
G3M0731
60. FUNCTION MODE: F11
—LINE PRESSURE DUTY (PLDTY)—
G3M0732
61. FUNCTION MODE: F12
—LOCK-UP DUTY (LUDTY)—
G3M0733
62. FUNCTION MODE: F13
—AWD DUTY (4WDTY)—
B3M0259
63. FUNCTION MODE: F14
—THROTTLE POSITION SENSOR POWER SUPPLY
(THVCC)—
55
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

LED No. Signal name Display
1 FWD switch FF
2 Kick-down switch KD
3——
4——
5 Brake switch BR
6 ABS switch AB
7 Cruise control set CR
8 Power switch PW
9——
10——
FF KD——BR
AB CR PW——
1
2345
678910
64. FUNCTION MODE: FA0
—ON↔OFF SIGNAL—
Requirement for LED“ON”.
LED No. 1 Fuse is installed in FWD switch.
LED No. 2 Kick-down switch is turned ON. (Europe and
General models only)
LED No. 5 Brake pedal is depressed.
LED No. 6 ABS signal is entered.
LED No. 7 Cruise control is set.
LED No. 8 Power switch is turned ON. (Europe and
General models only)
LED No. Signal name Display
1 N/P range switch NP
2 R range switch RR
3 D range switch RD
4 3 range switch R3
5 2 range switch R2
6 1 range switch R1
7 Diagnosis switch SS
8——
9——
10——
NP RR RD R3 R2
R1 SS———
1
2345
678910
65. FUNCTION MODE: FA1
—ON↔OFF SIGNAL—
Requirement for LED“ON”.
LED No. 1“N”or“P”range is selected.
LED No. 2“R”range is selected.
LED No. 3“D”range is selected.
LED No. 4“3”range is selected.
LED No. 5“2”range is selected.
LED No. 6“1”range is selected.
LED No. 7 Diagnosis connector is connected.
56
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

H2M1149
D: CLEAR MEMORY MODE
1. SUBARU SELECT MONITOR
1) Select engine mode or AT mode using function key.

Engine mode:
Press the function key [0].

AT mode:
Press the function key [/] [0] in that order.
G3M0152
2) Designate mode using function key.
Press [F] [C] [0] [ENT] in that order.
B2M0504
3) Ensure displayed message.
G3M0152
4) Press function key.

When executing, (YES)
Press [0] [ENT] in that order.

When not executing, (NO)
Press [1] [ENT] in that order.
B2M0505
5) When executed, the indication as shown here appears
for approximately four seconds, and the past trouble his-
tory is deleted.
57
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

G3M0151
6) After the display is gone, turn Subaru select monitor
switch and ignition switch to OFF.
NOTE:
When the ECM, battery terminals, etc. are disconnected
after memory is cleared, idling speed may increase. This is
not considered a problem because the ISC valve duty con-
trolled learning value has been cleared. To return the
engine to idling speed, idle for approximately 2 minutes
with air conditioner off.
2. OBD-II GENERAL SCAN TOOL
For clear memory procedures using the OBD-II general
scan tool, refer to the OBD-II General Scan Tool Instruction
Manual.
OBD0072A
E: INSPECTION MODE
1. PREPARATIONS FOR THE INSPECTION MODE
Raise the vehicle using a garage jack and place on safety
stands or drive the vehicle onto free rollers.

FULL-TIME AWD MODELS
WARNING:

Before raising the vehicle, ensure parking brakes
are applied.

Do not use a pantograph jack in place of a safety
stand.

Secure a rope or wire to the front and rear towing or
tie-down hooks to prevent the lateral runout of front
wheels.

Do not abruptly depress/release clutch pedal or
accelerator pedal during works even when engine is
operating at low speeds since this may cause vehicle
to jump off free rollers.

In order to prevent the vehicle from slipping due to
vibration, do not place any wooden blocks or similar
items between the safety stands and the vehicle.
58
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

Since the rear wheels will also rotate, do not place
anything near them. Also, make sure that nobody goes
in front of the vehicle.
OBD0073A

FWD MODELS
WARNING:

Before raising the vehicle, ensure parking brakes
are applied.

Do not use a pantograph jack in place of a safety
stand.

If only the front wheels are raised or placed on a free
roller, apply parking brakes and lock the rear wheels.

Secure a rope or wire to the front and rear towing or
tie-down hooks to prevent the lateral runout of front
wheels.

Do not abruptly depress/release clutch pedal or
accelerator pedal during works even when engine is
operating at low speeds since this may cause vehicle
to jump off free rollers.

In order to prevent the vehicle from slipping due to
vibration, do not place any wooden blocks or similar
items between the safety stands and the vehicle.

Since the rear wheels will also rotate, do not place
anything near them. Also, make sure that nobody goes
in front of the vehicle.
OBD0057A
2. SUBARU SELECT MONITOR
After performing diagnostics and clearing the memory,
check for any remaining unresolved trouble data.
1) Prepare Subaru select monitor and cartridge.
ST1 498307500 SELECT MONITOR KIT
ST2 498345700 CARTRIDGE
G3M0151
2) Turn ignition switch and Subaru select monitor switch to
OFF.
59
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

G3M0150
3) Insert cartridge into Subaru select monitor.
OBD0005B
4) Connect test mode connector at the lower portion of
instrument panel (on the driver’s side), to the side of the
center console box.
OBD0059A
5) Connect Subaru select monitor to data link connector.

Using data link connector for Subaru select monitor only:
Connect Subaru select monitor to its data link connector
located in the lower portion of the instrument panel (on the
driver’s side), to the side of the center console box.
OBD0669A

Using data link connector for Subaru select monitor and
OBD-II general scan tool:
(1) Connect ST to Subaru select monitor cable.
ST 498357200 ADAPTER CABLE
OBD0006C
(2) Open the cover and connect Subaru select monitor
to data link connector located in the lower portion of the
instrument panel (on the driver’s side), to the lower
cover.
CAUTION:
Do not connect scan tools except for Subaru select
monitor and OBD-II general scan tool.
60
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

OBD0060
6) Turn ignition switch to ON (engine OFF) and Subaru
select monitor switch to ON.
7) Start the engine.
NOTE:

Ensure the selector lever is placed in the“P”position
before starting. (AT vehicles)

Depress clutch pedal when starting the engine. (MT
vehicles)
8) Using the selector lever or shift lever, turn the“P”posi-
tion switch and the“N”position switch to ON.
9) Depress the brake pedal to turn the brake switch ON.
(AT vehicles)
10) Keep engine speed in the 2,500—3,000 rpm range
for 40 seconds.
NOTE:
On models without tachometer, use the Subaru select
monitor or tachometer (Secondary pickup type).
11) Place the selector lever or shift lever in the“D”posi-
tion (AT vehicles) or“1st”gear (MT vehicles) and drive the
vehicle at 5 to 10 km/h (3 to 6 MPH).
NOTE:

On AWD vehicles, release the parking brake.

The speed difference between front and rear wheels
may light either the ABS or the ABS/TCS warning light, but
this indicates no malfunctions. When engine control diag-
nosis is finished, perform the ABS or the ABS/TCS memory
clearance procedure of self-diagnosis system. 4-4b [T6D2] or [T9K0], 4-4c [T6D2] or [T9J0].>
OBD0005B
3. OBD-II GENERAL SCAN TOOL
After performing diagnostics and clearing the memory,
check for any remaining unresolved trouble data:
1) Connect test mode connector at the lower side of the
instrument panel (on the driver’s side), to the side of the
center console box.
OBD0006C
2) Open the cover and connect the OBD-II general scan
tool to its data link connector in the lower portion of the
instrument panel (on the driver’s side), to the lower cover.
CAUTION:
Do not connect the scan tools except for Subaru select
monitor and OBD-II general scan tool.
61
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System

3) Start the engine.
NOTE:

Ensure the selector lever is placed in the“P”position
before starting. (AT vehicles)

Depress clutch pedal when starting the engine. (MT
vehicles)
4) Using the selector lever or shift lever, turn the“P”posi-
tion switch and the“N”position switch to ON.
5) Depress the brake pedal to turn the brake switch ON.
(AT vehicles)
6) Keep engine speed in the 2,500—3,000 rpm range for
40 seconds.
NOTE:
On models without tachometer, use the Subaru select
monitor or tachometer (Secondary pickup type).
7) Place the selector lever or shift lever in the“D”position
(AT vehicles) or“1st”gear (MT vehicles) and drive the
vehicle at 5 to 10 km/h (3 to 6 MPH).
NOTE:

On AWD vehicles, release the parking brake.

The speed difference between front and rear wheels
may light either the ABS or the ABS/TCS warning light, but
this indicates no malfunctions. When engine control diag-
nosis is finished, perform the ABS or the ABS/TCS memory
clearance procedure of self-diagnosis system. 4-4b [T6D2] or [T9K0], 4-4c [T6D2] or [T9J0].>
8) Using the OBD-II general scan tool, check for diagnos-
tic trouble code(s) and record the result(s).
NOTE:

For detailed operation procedures, refer to the OBD-II
General Scan Tool Instruction Manual.

For details concerning diagnostic trouble codes, refer to
the DIAGNOSTIC TROUBLE CODE (DTC) LIST, 2-7
[T10A0].
H2M1149
4. READ DIAGNOSTIC TROUBLE CODE (DTC)
SHOWN ON DISPLAY. (MODE FB0 MODE>)
Using Subaru select monitor, check for diagnostic trouble
code(s) and record the result(s).
1) Select engine mode using function key.
Press the function key [0].
62
2-7ON-BOARD DIAGNOSTICS II SYSTEM
3. Diagnosis System